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The Reference section of AirTalk.com provides key information about our hardware and software products, cable pressurization design concepts, leak locating strategies and a variety of other information. Visit this section often to learn more about cable pressurization and what we have to offer.
High Resolution Pressure Transducer Part No. 9800-4000
With the advancements taking place in leak locating technology and the increased importance of measuring flow in an air pressure system, it may seem that pressure doesn't play as important a part in the complete system as it once did. This couldn't be further from the truth. Accurate pressure readings are absolutely essential to the monitoring and maintenance of the system.
With today's emphasis on cutting costs and protecting a plant that includes an increasing number of critical service cables, leak locating needs to become more efficient and economical. And monitoring devices need to be more responsive. That's why we developed the High Resolution Pressure Transducer™. This transducer provides precise pressure readings over a wider scale and—in conjunction with our High Resolution Flow and Dual Transducers™, Flow Finder Manifold™, and Flow Finders™—it will also get you closer to a leak during routine and emergency leak locating procedures.
Current Loop Output
The High Resolution Pressure Transducer, like our other transducers, outputs in loop current (in the range of 4 to 20 milliamperes), rather than electrical resistance. The mechanical parts found in other transducers have been replaced with solid-state components that provide reliability from reading to reading. The new transducer offers the stability and accuracy you need to effectively monitor your air pressure system.
Because the High Resolution Pressure Transducer does not use a stepped resistance scale, it offers extended reading capabilities and accuracy down to 1% of calibrated operating span. Special considerations were taken into account when designing this transducer, enabling it to easily interface with the 289H Loop Surveillance System (LSS)™ monitor and PressureMAP™ software.
Here's How It Works
Using integrated-circuit technology and solid-state components, our new pressure transducer has an extended reading capability (0-30 Pounds per Square Inch), and is both extremely accurate and verifiable. The High Resolution Pressure Transducer senses a change in pressure and converts it to a change in electrical output, which is then read remotely by the 289H LSS. This design provides maximum stability and repeatability from reading to reading.
Pressure readings can be taken in increments of .1 Pounds per Square Inch (PSI) rather than the .5 PSI jumps that you find with other transducers. Not only does this enable you to take extremely accurate readings, but you can take them throughout the full range of the device: 0-30 PSI. This means that the same pressure transducer can be placed on an air dryer, where the highest pressures are expected, or it can be installed on the end of an air pipe route, where pressure is at its lowest. The High Resolution Pressure Transducer is ideal for most of the pressure monitoring applications in your system.
Installation Applications
All System Studies transducers can be mounted directly to access hole walls and telephone poles using our specially designed bracket, or they can be wired in any conventional 5- or 10-bank
High Resolution Pressure Transducer (continued)
transducer housing. The High Resolution Pressure Transducers can also be installed in the central office at the back of existing pipe alarm and meter panels, or flush mounted in a standard equipment rack. They are provided in five configurations, depending on where they are used. See the accompanying ordering chart for more information.
Because of the High Resolution Pressure Transducer's extended reading capability and accuracy down to one tenth (.1) of PSI, it is the ideal device for monitoring the low output side of central office air dryers. Resistive devices, which read in half pound increments (.5 PSI), simply do not have the accuracy needed to identify the subtle changes in pressure that result from alternating dryers or dryer output cycles. These delivery pressure fluctuations are the cause of most central office nuisance alarms—those minor changes in flow transducer output that cross programmed alarm thresholds.
The High Resolution Pressure Transducer can be fine-tuned by PressureMAP to not only eliminate nuisance alarms, but provide early warning of air dryer problems.
Pair Access
Like our other transducers, the High Resolution Pressure Transducer is equipped with an internal splicing cavity that simplifies the process of shooting trouble on the device pair. The protective bottom cover of the transducer can be removed to expose both the working pair and the backup pair. This internal splicing cavity eliminates the need for additional hardware and facilitates access to conductors..
Model Specifications
The High Resolution Pressure Transducer is calibrated at 0–15 PSI (0–103 kiloPascals); however, it may be read at 0–30 PSI (0–207 kPa), covering a complete range of pressure readings. Readings are calibrated in .1 PSI (.7 kPa) increments. All System Studies transducers operate on dedicated telephone circuits only.
Mechanical The transducer housing is constructed of nickel-plated brass with a mineral filled nylon barrier plate. The High Resolution Pressure Transducer is 2¼ inches (5.7 cm) high by 2½ inches (6.4 cm) wide. Input and output ports are 3/8-inch standard tubing fittings. The mounting bracket, sold with the transducer, is stainless steel. Side holes, used to mount the bracket to a post or wall, are ¼ inch (.6 cm) in diameter and are placed 1¼ inches (4.4 cm) apart. Four 7/32-inch (.5 cm) holes, used to secure the transducer to a transducer housing, are located on top of the bracket.
Performance Margin of error for repeatability in readings is less than 1%. The transducers read zero absolute pressure. Any reading variations caused by changes in atmospheric and barometric pressure are corrected by the PressureMAP/289H Monitoring System if a System Studies Barometric Transducer (P/N 9800-4050) is installed in the office.
Pressure Readings The transducer is equipped with a single access valve for manual pressure testing with a digital or C pressure gauge.
| PART NUMBER |
CONFIGURATION* |
FITTING** |
| 9800-4000 |
Stand-alone |
BB, BR, BS, BT, SC |
| 9800-4001 |
Central Offices Panel Mount |
BB, BR, BS, BT, SC |
| 9800-4002 |
Transducer Housing Mount |
BB |
| 9800-4003 |
Stand-alone |
SS |
| 9800-4004 |
Stand-alone |
SC |
| * Configuration: |
| Stand-alone |
P/N -4000: Includes a nickel-plated brass conductor tubing connector, 15 feet of plastic tubing, and 18 feet of 2-pair conductor wire) |
| P/N -4003: Supplied with a 37° flared stainless steel conductor tubing connector; it does not include tubing or conductors |
| P/N -4004: Supplied with 1/4" nickel-plated brass conductor tubing connector; it does not include tubing or conductors |
| Central Office Panel Mount |
Includes a wire cover assembly with 2 pairs of conductors in a protective sheath. |
| Transducer Housing Mount |
Does not include a wire cover assembly, center barrier plate, or tubing and conductors |
| |
| Please note that a four digit part number and a two digit pneumatic fitting designation must be specified for each transducer when ordering. |
| ** Fitting: |
| BB |
Transducer supplied with nickel-plated brass, barbed pneumatic connector. |
| BR |
Transducer supplied with nickel-plated brass, barbed pneumatic connector on a 90° elbow.. |
| BS |
Transducer supplied with nickel-plated brass, standard tubing connector. For use with 3/8" plastic tubing. |
| BT |
Transducer supplied with nickel-plated brass, 1/4 inch tubing connector. |
| SC |
Transducer supplied with nickel-plated brass connector. For use with 1/8" pre-formed stainless steel tubing. |
| SS |
Transducer supplied with stainless steel, 37° flared tubing connector. For use with 1/4" stainless steel braided tubing. |
| NN |
No pneumatic tubing connector supplied. |
Ordering Examples:
If you ordered part number 4002-BS, for example, you would receive a High Resolution Pressure Transducer designed for a conventional five or ten bank transducer housing. The transducer would be supplied with a nickel-plated brass 1/4" male NPT fitting for standard 3/8" plastic tubing.
Pressure transducer model 4003-SS consists of a stand-alone model with a 37° flared stainless steel conductor tubing connector and a 37° flared pneumatic tubing connector (for use with 1/4" stainless steel braided tubing). This model is not supplied with conductor wires.
High Resolution Flow Transducer Part No. 9800-4100
Dispatching, leak locating, route indexing—in order to do your job well, you depend on accurate flow measurements. Flow measurements taken manually at air source locations and remotely via your air pressure monitoring system.
That's why we developed Flow Finders™. To provide true flow measurement accuracy and dependability. To give you tools for precision flow measurement. Tools that not only eliminate questions about flow rates—but also help direct leak locating efforts, reveal unrecorded air sources, and verify transducer accuracy.
System Studies' High Resolution Flow Transducer™ takes this flow measurement technology another step forward. Building on the
Flow Finder as a foundation, our product goes beyond the limitations of conventional flow transducers to break new ground in flow monitoring accuracy and reliability. And because it reads in the range of the Flow Finder where it's installed, it can even be used to monitor the one inch air pipe systems that are now being built.
Utilizing Loop Current
Many conventional flow transducers are still using a stepped electrical resistance scale to indicate changes in flow rates. Trouble is, the transducer's resistance scales are provided in either 20 or 40 steps. So, depending on how the transducer is calibrated—either 0-9.5 Standard Cubic Feet per Hour (SCFH), 0-19 SCFH, 0-47.5 SCFH or 0-100 SCFH—each position on the scale represents a segment of the flow range. Subtle differences in flow rates simply cannot be detected.
The System Studies High Resolution Flow Transducer outputs in loop current, rather than electrical resistance. As such, it is stepless—providing extended reading capabilities and accuracy down to approximately 1% of calibrated operating span. And it's the first transducer designed specifically to interface with both PressureMAP™ and the 289H Loop Surveillance System (LSS)™.
Installation Applications
The System Studies High Resolution Flow Transducers can be installed at any location where flow rates are measured with a Flow Finder. Typically, they will be installed in the central office at pipe alarm and distribution panels, at conventional air pipe manifold locations in the field (where Flow Finders are in place), or at Flow Finder Manifolds™.
Using its specially designed bracket, the transducer may be mounted directly to a manhole wall, central office panel or telephone pole. One variation of the transducer allows for simple installation on a standard 5- or 10-bank transducer housing.
In each of these applications, the pneumatic fittings on the side of the transducer are tubed directly to the Flow Finder being read. From the built-in sampler valves located on top of the transducer, a technician can manually verify the flow rate indicated by the transducer with a Flow Gauge™.
High Resolution Flow Transducer (continued)
Pair Access
The High Resolution Flow Transducer is equipped with an internal splicing cavity which permits quick access to device pairs. This feature makes it possible to easily disconnect the transducer from its monitoring circuit when troubleshooting the pair. With conventional transducers, it is necessary either to open the splice case itself to access the device pair or purchase an additional splicing terminal for this purpose. The internal splicing cavity eliminates the need for additional hardware and makes access to conductor pairs as easy as unscrewing a thumb screw and removing a protective cover.
Model Specifications
The System Studies High Resolution Flow Transducer is supplied in five configurations. See the accompanying ordering chart for more information.
Mechanical The transducer housing is constructed of nickel-plated brass with a mineral filled nylon barrier plate. Dimensions vary depending upon which configuration is ordered. For example, one of the common stand-alone models (Part No. 4100) measures approximately 2¾ inches (7 cm) high, by 2½ inches (6.4 cm) in length and width. Input and output ports on this model are 3/8-inch standard tubing fittings.
The mounting bracket, sold with stand-alone versions of the transducer, is stainless steel. Side holes, used to mount the bracket to a post, wall or panel, are ¼ inch (.6 cm) in diameter and are placed 1¾ inches (4.4 cm) apart. Four 7/32-inch (.5 cm) holes, used to secure the transducer to a transducer housing, are located on top of the bracket.
Performance Margin of error for repeatability in the High Resolution Flow Transducer is less than 1%. It is infinitely readable from zero flow to full flow in all five Flow Finder ranges. If the Flow Finder being measured is pegged, the High Resolution Flow Transducer will provide stepless and accurate readings up to two times the maximum reading capability of the Flow Finder. Overall measurement stability at all flow ranges is unparalleled.
Flow Readings Transducer readings can be manually verified with a Flow Gauge using the two tank valve fittings (sampler valves) located on top of the transducer. The two pneumatic fittings on the side of the transducer can be tubed directly to an installed Flow Finder or to a Flow Finder Manifold's incoming Flow Finder sampler valves.
| PART NUMBER |
CONFIGURATION* |
FITTING** |
| 9800-4100 |
Stand-alone |
BB, BR, SC |
| 9800-4101 |
Central Offices Panel Mount |
BB, BR |
| 9800-4102 |
Transducer Housing Mount |
BB |
| 9800-4103 |
Stand-alone |
BB, BR, SC |
| 9800-4104 |
Stand-alone |
BB, BR, SC |
| * Configuration: |
| Stand-alone |
P/N -4100: Includes a nickel-plated brass conductor tubing connector, 15 feet of plastic tubing, and 18 feet of 2-pair conductor wire) |
| P/N -4103: Supplied with a 37° flared stainless steel conductor tubing connector; it does not include tubing or conductors |
| P/N -4104: Supplied with 1/4" nickel-plated brass conductor tubing connector; it does not include tubing or conductors |
| Central Office Panel Mount |
Includes a wire cover assembly with 2 pairs of conductors in a protective sheath. |
| Transducer Housing Mount |
Does not include a wire cover assembly, center barrier plate, or tubing and conductors |
| |
| Please note that a four digit part number and a two digit pneumatic fitting designation must be specified for each transducer when ordering. |
| ** Fitting: |
| BB |
Transducer supplied with nickel-plated brass, barbed pneumatic tubing connectors. |
| BR |
Transducer supplied with nickel-plated brass, barbed pneumatic tubing connectors on 90° elbows. |
| SC |
Transducer supplied with nickel-plated brass connectors. For use with 1/8" pre-formed stainless steel tubing. |
Ordering Examples:
If you ordered part number 4101-BR, you would receive a High Resolution Flow Transducer designed for mounting on a central office panel. The transducer would be supplied with nickel-plated brass, barbed pneumatic connectors on 90 degree elbows.
Model number 4100-SC is a stand-alone flow transducer with pneumatic connector fittings that accommodate 1/8" pre-formed stainless steel tubing. This is used for the field Flow Finder and Flow Finder Manifold bracket assemblies.
High Resolution Dual Transducer Part No. 9800-4200
Pressure and flow transducers. They've been important components of cable pressurization systems for years. You'll find them in central offices, monitoring panel delivery pressures and flows. In access holes, monitoring cables, manifolds and air pipes. And at remote dryers, monitoring pressure and flow output. You'll find them just about anywhere you need remote pressure and flow information.
Now, thanks to the solid-state technology used in System Studies' high resolution transducers, there's a combination pressure and flow device that makes your job easier and your monitoring system more effective.
The High Resolution Dual Transducer™ combines the precise monitoring capabilities of our pressure transducer (with its extended reading range of 0-30 PSI) with the versatility and accuracy of our flow transducer. Not only is this device unique in design and function, but it is small enough to be installed at locations where access and space limitations are an issue.
Most importantly, it saves you time and money in dual monitoring applications by eliminating the need to purchase and install separate devices. One dual transducer mounted to a central office pipe alarm panel, for example, will monitor both delivery pressure and air flow consumption. And like our other high resolution sensors, the transducer's readings can be manually verified to confirm reading accuracy.
Here's How it Works
The High Resolution Dual Transducer is designed to be used with the Flow Finder™ System of Measurement, the 289H Loop Surveillance System™, and the PressureMAP™ monitoring software. The device consists of a solid-state sensor board, a communications board and two dedicated pairs of conductors. One sensor measures the internal pressure of the Flow Finder at its point of installation, and another measures the minute pressure differential created by the Flow Finder's internal calibrated orifice.
Each of these pressure readings is output separately as an electrical current value in the range of 4 to 20 milliamperes. The values are then read by the 289H LSS and converted into accurate pressure and flow readings by PressureMAP.
The dual transducer is not only unique in that it contains both pressure and flow sensors, but it can also be placed anywhere on the pipe route where pressure and flow must be measured. Its 0–30 PSI reading range means that you can monitor delivery pressure without having to install another 5–14.5 PSI pressure device. And because it reads in one-tenth (.1) PSI increments, rather than the one-half (.5) PSI steps of resistive pressure transducers, it can detect and monitor the subtle fluctuations in delivery pressure from a central office dryer.
For flow readings, the dual transducer's flow sensor relies on the range of the Flow Finder being measured. This allows you to place this same transducer both at a distribution panel and at a manifold location in the field.
High Resolution Dual Transducer (continued)
Installation Applications
The System Studies High Resolution Dual Transducer is the ideal device to install at the pipe alarm panel, the meter panel, and at the end of an air pipe. It can also be placed at any manifold location, and the pneumatic fittings can be tubed directly to the Flow Finder being read. From the built-in access valves located on top the transducer, a technician can manually verify the flow and pressure rates indicated with a Flow Gauge™ or a C pressure gauge.
To make installation a snap, the High Resolution Dual Transducer has a built-in splicing cavity with two pairs of conductors—one for
each sensor. System Studies transducers can be mounted directly to access hole walls using our specially designed bracket, or in the central office using our new monitor rack. They can also be installed at any conventional 5-bank or 10-bank transducer housing.
Model Specifications
The High Resolution Dual Transducer provides stepless flow readings for all five Flow Finder ranges: 9.5 SCFH (269 Liters per Hour, or LPH), 19.0 SCFH (538 LPH), 47.5 SCFH (1,345 LPH), 95.0 SCFH (2,690 LPH) and 475.0 SCFH (13,500 LPH). It can read pressure from 0—30 PSI (0—207 KiloPascals), covering a complete range of possible pressure readings. All System Studies transducers operate on dedicated telephone circuits only. Variations of the basic housing design are provided for use in several applications (please refer to accompanying ordering charts).
Mechanical The transducer housing is constructed of nickel-plated brass with an ABS plastic barrier plate. Dimensions vary depending upon which configuration is ordered. The mounting bracket, sold with the stand-alone versions of the transducer, is stainless steel. Side holes, used to mount the bracket to a post, wall or panel, are ¼ inch (.6 cm) in diameter and are placed 1¾ inches (4.4 cm) apart. Four 3/16-inch (.5 cm) holes, used to secure the transducer to a transducer housing, are located on top of the bracket.
Performance Margin of error for repeatability in the High Resolution Dual Transducer is less than 1%. The transducer's flow sensor is infinitely readable from zero to full flow in all five Flow Finder ranges. If the Flow Finder being measured is pegged, the High Resolution Dual Transducer will provide stepless and accurate readings up to two times the maximum reading capability of the Flow Finder.
The transducer's pressure sensor reads absolute pressure. Reading variations caused by changes in altitude or barometric pressure are corrected by the PressureMAP/289H Monitoring System, if a System Studies Barometric Transducer is installed in the office.
Pressure / Flow Readings Transducer flow readings can be manually verified with a Flow Gauge using the two tank valve fittings (sampler valves) located on top of the transducer. The two pneumatic fittings on the side of the transducer can be tubed directly to an installed Flow Finder or to a Flow Finder Manifold's™ incoming Flow Finder sampler valves. Pressure readings can be taken by simply connecting a C pressure gauge to the high pressure side of the two sampler valves located on top of the transducer.
| PART NUMBER |
CONFIGURATION* |
FITTING** |
| 9800-4200 |
Stand-alone |
BB, BR, SC |
| 9800-4201 |
Central Offices Panel Mount |
BB, BR |
| 9800-4202 |
Transducer Housing Mount |
BB |
| 9800-4203 |
Stand-alone |
BB, BR, SC, SCP |
| 9800-4204 |
Stand-alone |
BB, BR, SC |
| * Configuration: |
| Stand-alone |
P/N -4200: Includes a nickel-plated brass conductor tubing connector, 15 feet of plastic tubing, and 18 feet of 2-pair conductor wire) |
| P/N -4203: Supplied with a 37° flared stainless steel conductor tubing connector; it does not include tubing or conductors |
| P/N -4204: Supplied with 1/4" nickel-plated brass conductor tubing connector; it does not include tubing or conductors |
| Central Office Panel Mount |
Includes a wire cover assembly with 2 pairs of conductors in a protective sheath. |
| Transducer Housing Mount |
Does not include a wire cover assembly, center barrier plate, or tubing and conductors |
| |
| Please note that a four digit part number and a two digit pneumatic fitting designation must be specified for each transducer when ordering. |
| ** Fitting: |
| BB |
Transducer supplied with nickel-plated brass, barbed pneumatic tubing connectors. |
| BR |
Transducer supplied with nickel-plated brass, barbed pneumatic tubing connectors on 90° elbows. |
| SC |
Transducer supplied with nickel-plated brass connectors. For use with 1/8" pre-formed stainless steel tubing. |
| SCP |
Transducer supplied with internal pair saver and 1/8" pre-formed stainless steel tubing. |
Ordering Examples:
If you ordered part number 4201-BR (shown in photo on preceding page), you would receive a High Resolution Dual Transducer designed for mounting on a central office panel. The transducer would be supplied with a nickel-plated brass, barbed pneumatic connectors on 90° elbows.
Model number 4200-SC is a stand-alone dual transducer with pneumatic connector fittings that accommodate 1/8" pre-formed stainless steel tubing. This model is used for the field Flow Finder and Flow Finder Manifold bracket assemblies.
Barometric Pressure Transducer Part No. 9800-4050
In air pressure systems where alarm thresholds are set tight due to the critical nature of the cables in the system, there is absolutely no room for monitoring inaccuracies or variables. Responsive and accurate pressure monitoring dictates whether you can actually use your alarm information or if you have to ignore it.
Field personnel and analyzers know what happens when a major storm front moves into an area. The storm causes a drop in barometric pressure and reduces air dryer output. With cable pressure transducer alarm levels set tight because of the critical service requirements of the cables, the reduced delivery pressure to the system often results in a deluge of alarms —ones that are
understandably disregarded as nuisance alarms.
Problem is, if there are 150 to 200 alarms generated by a major storm front, there's no way to tell if all of them are nuisance alarms or if one or more of them is the result of a serious cable leak.
That's why System Studies Incorporated developed the High Resolution Barometric Pressure Transducer™ (Part Number 9800-4050). One barometric pressure transducer installed in a central office at the air dryer will compensate for drops in dryer output due to storm activity. This device serves two important functions: it improves monitoring analysis and dispatching, and reduces nuisance alarms.
Here's How it Works
The High Resolution Barometric Pressure Transducer is a solid-state device which is zero calibrated to a fixed reference at sea level and vented to atmosphere. Unlike a mechanical transducer that has a fixed resistor scale and wiper arm, the barometric transducer's electronic design makes it possible to expand its reading range below the zero calibration point.
If a large storm passes through an area, the transducer measures the barometric pressure drop and makes the information available to PressureMAP. The software then compensates all of the other High Resolution Transducers installed in the office so that true cable pressure readings can be obtained.
For example, a typical storm passing through an area could change barometric pressure by as much as 30 millibars. This equates to nearly a half pound (.5 PSI) drop in pressure. PressureMAP would read the High Resolution Barometric Pressure Transducer and subtract its value from the readings provided by all of the other High Resolution Transducers. If a High Resolution Pressure Transducer monitoring an underground cable provided an output of 6.5 PSI and the High Resolution Barometric Pressure read -0.5 PSI (below zero), the actual cable pressure reading would be 7.0 PSI (6.5 minus a negative 0.5).
This type of reading accuracy and barometric pressure correction effectively eliminates nuisance alarms caused by storm activity and provides accurate data for dispatching and alarming. It enables you to maintain generally tight alarm levels, setting them as low as 0.03 PSI for high priority devices if desired.
Barometric Pressure Transducer (continued)
Model Specifications
| Electrical Loop Type: |
Central office dedicated pair |
| Measurement Voltage: |
10 to 48 volts DC |
| Measurement Pair: |
Blue/white conductors |
| Spare Pair: |
Orange/white conductors |
| Measurement Output: |
4 to 20 milliamperes, 20.6 to 35.0 inches of Hg |
| Measurement Resolution: |
0.01 PSI |
| Construction: |
Nickel-plated brass, mineral filled nylon center barrier plate |
| Physical Dimensions: |
2.5 inches x 2.625 inches (excluding conductor fitting) |
| Operating Temp. Range: |
0 to +150 degrees F |
| PressureMAP Device Type: |
AB |
| Transducer Type: |
Baro/35 |
| Monitor Compatibility: |
289H Loop Surveillance System (LSS) |
| |
|
|
Relative Humidity / Temperature Sensor Part No. 9800-4410
The relative humidity sensor detects changes in humidity and responds with a current loop value between 4 and 20 milliamperes (mA). A small thermistor sensor monitors temperature changes in the dryer room and outputs electrical resistance in the range of 2069 ohms to 885K ohms.
To provide early warning of a developing environmental problem in the dryer room, System Studies has designed a Relative Humidity/Temperature Sensor (Part No. 9800-4410) that, in conjunction with PressureMAP™ and the 289H LSS or uM260 Micro monitors™, remotely monitors and alarms for changing conditions. This dual sensor device, which can be directly mounted to a dryer room wall, reads from 20% to 95% relative humidity, and 32° to 150° Fahrenheit. The relative humidity sensor is programmed in PressureMAP to alarm when the humidity increases to 80% and clear when it decreases to 75%. The temperature
sensor alarms at 95° F and clears when the temperature drops back down to 90° F. This early warning detection is critical in implementing the necessary procedures to protect dryers from the damaging effects of heat and humidity.
Here's How it Works
The relative humidity sensor detects changes in humidity and responds with a current loop value between 4 and 20 milliamperes (mA). A small thermistor sensor monitors temperature changes in the dryer room and outputs electrical resistance in the range of 2069 ohms to 885K ohms.
Two pairs of conductors provide the electrical connection to the 289H LSS monitor in the central office (one pair for each sensor). Output values are read by the 289H LSS, and converted to humidity and temperature readings by the PressureMAP software. The Relative Humidity/ Temperature Sensor is programmed into the Pressure-MAP database as two devices. The relative humidity sensor is programmed as a "RH" device type, and the temperature sensor as a "JD" device type. When PressureMAP scans the 289H LSS for readings, the device type cues the software to interpret the values supplied by the devices as the appropriate types of reading. A four star alarm is generated and distributed to the assigned Alarm Center(s) for any humidity reading above 80%, or any temperature reading above 95° F.
Physical Description
The System Studies Relative Humidity/Temperature Sensor consists of a humidity sensor and a temperature sensor in a wall-mount plastic housing. The device is equipped with 15 feet of 2-pair conductor wire in a protective sheath. The orange/white pair for the relative humidity sensor is polarity sensitive; however, the blue/white pair for the temperature sensor is non-polarity sensitive. The unit is flush-mounted, using the appropriate screws or fasteners for the wall where the sensor is being placed.
Temperature / Humidity Sensor (continued)
Model Specifications
| Electrical: |
The relative humidity sensor outputs a current loop value between 4 and 20 mA. The sensor operates on a single dedicated conductor pair (26 gauge, standard, orange/white), and is polarity sensitive.
The temperature sensor outputs electrical resistance readings in the range of 2069 ohms to 885K ohms. It operates on a single dedicated conductor pair (26 gauge, standard, blue/white). The sensor is not polarity sensitive. Measurement voltage: 10 to 48 volts DC.
|
| Physical Dimensions: |
4.5 inches x 2.75 inches x 1.14 inches |
| Relative Humidity Range Output: |
20 to 95% (accurate within ± 5%) |
| Temperature Range Output: |
32° F to 150° F |
| PressureMAP Device Types: |
RH, JD |
| Monitor Compatibility: |
289H Loop Surveillance System (LSS)™–controller card equipped with one of the following EPROMs (or higher): Rev. B0A, Rev. C05, D03, E03, F01 or G01; uM260 Micro Monitor |
| |
|
AC Voltage Sensor Part No. 9800-4505
System Studies' P/N 9800-4505 AC Sensor is ideal for monitoring incoming line voltage to important AC-powered equipment, such as central office air dryers. Designed for 3-phase 220 volt applications, this UL or CUL listed device provides three separate inputs and three 4-20 milliamperes (mA) monitoring outputs. Each mA output is proportional to a measured incoming voltage from 0-300 VAC. Remote reading capability is provided via a 289H or 289H-M LSS monitor and PressureMAP software.
In PressureMAP each of the three phases (outputs) must be assigned a unique Access Number, a "CV" Device Type and a 'VAC/300" Transducer Type. The devices are then carefully monitored throughout the day and night for voltage drops. If PressureMAP detects that the voltage on one of the AC phases
has dropped to 185 VAC or below, it will generate and distribute a four star alarm. The alarm clears at 200 volts.
System Studies recommends that the required data for the sensor be entered into the PressureMAP database before completing the installation. With PressureMAP updated, proper device installation can be confirmed.
Notes for Proper Connector Block Wiring
During the process of wiring the sensor, the electrician should be instructed to connect two output jumper wires from terminals 1 and 2 on each of the sensor's terminal strips. Make sure that enough wire is provided to reach the 289H LSS connector block. Because the sensor is polarity sensitive, the terminal 1 wire should be connected to the designated ring (R) pin on the 289H block; the terminal 2 wire is connected to the tip (T) pin. The position of these pins on the block and the corresponding block to 289H cable connection determine the Access Number assigned to each sensor output. Please refer to the 289H or 289H-M LSS Installation and Operations Manual for information on how to wire the connector block and assign corresponding Access Numbers.
Nitrogen Tank Sensor Part No. 9800-4430
Nitrogen cylinders are invaluable air sources when used in the proper situation. They give temporary protection to underground and buried cables during splicing activities. They also provide an emergency backup air source for central office air compressors.
When you use a nitrogen cylinder in these applications or to supplement air supply to an individual cable, it is important to know how long the cylinder will last so you can replace it with a full tank if necessary.
One of the ways to determine this is to manually measure the flow rate into the cable(s) being fed. A Flow Finder™ installed in the pressure feed tubing between the high pressure regulator and the cable provides the flow information needed to compute the number of hours the tank can be used before it empties.
An easier, more automated method of determining nitrogen cylinder life is to use System Studies' Nitrogen Tank Sensor (P/N 9800-4430). This transducer, when used in a PressureMAP™ monitored air pressure system, not only indicates tank volume upon demand, but it also alarms for significant percentage drops in the monitored cylinder's standard cubic foot volume.
What this means is that you won't get caught coming up short—either in tank volume or your estimated time frame for replacing a tank.
Here's How it Works
The Nitrogen Tank Sensor is a stainless steel, cylindrical device that threads into the high pressure side (tank side) of the cylinder's pressure regulator. It measures tank pressure from 0 to 3,000 Pounds per Square Inch (PSI) and outputs this information as a loop current value in the range of 4 to 20 milliamperes (mA).
The device is powered by voltage—in the range of 10 to 48 volts DC—supplied over a pair of dedicated conductors by a 289H Loop Surveillance System (LSS)™ monitor. PressureMAP calls the 289H monitor, scans the device reading, and converts the PSI value to a volume reading between 0 and 220 cubic feet. Calls are made on a scheduled basis or at the request of the user.
Physical Description
The System Studies Nitrogen Sensor (P/N 9800-4430) is a self-supporting, cylindrical stainless steel transducer which measures approximately 3-3/4" long x 1" in width. It is supplied with 36" of conductor sheath which contains plastic-insulated, 24-gauge conductor pair.
One end of the sensor (the end opposite the conductor tubing) has a 1/4" NPT male thread, which enables the device to be threaded directly into the regulator device on the nitrogen tank. This arrangement simplifies installation and eliminates the need for an installation kit and/or supplemental fittings.
PressureMAP Device Type
PressureMAP's device type "NB" is used to designate the Nitrogen Tank Sensor. A trend-down alarm is generated for this device when a 50 plus cubic foot volume drop occurs on an NB device within 24 hours. A verbose reading problem alarm is also generated for the device.
Nitrogen Tank Sensor (continued)
Sensor Specifications
| Electrical: |
The Nitrogen Tank Transducer is designed to operate on a dedicated pair having a maximum of 1500 ohms loop resistance. The electrical conductors (for connecting to the designated monitoring pair) are not polarity sensitive. Measurement pair is 24-gauge copper, PIC-insulated, 36" in length, supplied in a protective sheath.
|
| Excitation: |
10 to 30 V.C. (supplied from 289H LSS monitor or equivalent)
|
| Output: |
4 to 20 mA (2-wire) |
| Construction: |
The transducer's circuit board is housed in a stainless steel cylinder with a 1/4" NPT-M thread on one end and conductor pair assembly on the other. |
| Physical Size: |
The sensor housing measures 3.780" long x 1.058" in width. Its cylindrical diameter (OD) is approximately 0.875". |
| Weight: |
Approximately 4.5 oz without tubing |
| Model Designation: |
Part No. 9800-4430 |
| Operating Temp. Range: |
-55 to +195°F |
| |
|
Contact Alarm Expander Part No. 9800-4450
The System Studies Contact Alarm Expander (Part No. 9800-4450) is a small, DC powered block of solid-state relays that makes it possible to convert a standard "open/closed" contact indicator into several isolated and varying contact configurations. Each of these outputs can be read simultaneously by different monitors. The Contact Alarm Expander takes a normally dry contact as an input and relays the state of this contact to two normally open contacts, one normally closed contact, and one 540/270K ohm contactor.
In application, this means that a contact alarm installed on an air dryer which normally provides only an "open" or 'closed" status condition, can now be read by another monitor (such as a 289H LSS™) to check alarm circuit continuity. For example, using a 289H LSS and the 540/270K ohm relay output of the Contact
Alarm Expander, a reading of 540K would represent an "OK" condition; 270K would indicate an "ALRM" condition at the dryer; and "PAIR" would mean that the monitoring circuit is physically open. A Sparton monitor would read "OK," "ALRM," and "OPEN" (instead of "PAIR").
This output capability is especially valuable because it can identify whether a contactor is actually in alarm, as opposed to a problem with the pair (e.g. someone pulling a jumper and causing the device to go open).
The Contact Alarm Expander also makes it possible to monitor air dryer equipment remotely using a Dial-a-Ducer™ without interfering with existing, on premises contactor alarming. By connecting the Dial-a-Ducer's orange/white pair to either of the normally open output terminals on the Contact Alarm Expander, the Dial-a-Ducer (via PressureMAP) will provide either an "OK" or "ALRM" reading for the contactor. If the Dial-a-Ducer is setup to report to a digital pager, the two readings are "0" for open contact and "1" for closed contact.
Physical Description
The body of the Contact Alarm Expander is rectangular in shape and equipped with two mounting flanges to facilitate quick and permanent installation. There are twelve screw terminals located on the top (face) of the Contact Alarm Expander. These terminals are used to make the required conductor connections.
Installation
The wiring schematic shown below illustrates possible input and output configurations of the Contact Alarm Expander. Additional explanation is provided on the next page.
Contact Alarm Expander Part No. 9800-4450
The top left set of lugs, labeled "IN" is used to connect the contactor pair coming from the equipment being monitored. The contact to be monitored should not have any voltage on it. This can be verified by measuring each contact lead with a voltage meter (measure for AC and DC voltage relative to ground). The contact should be a floating "open/closed" type contact alarm.
The center left pair of terminals is for the power connection. One of them is labeled "GND," the other "-48V." It is important that the power lead and ground are properly connected to the Contact Alarm Expander. Polarity is important.
The remaining four pairs of connector lugs are used to expand the contactor output. These connections are illustrated in the figure above. When configuring the Contact Alarm expander for an application, simply determine the alarm status of the contactor to be monitored (i.e. open or closed when active). Then select the Contact Alarm expander output that meets the requirements of the monitoring system.
Sensor Specifications
| Electrical: |
Requires source of -48 volts DC to operate
|
| Construction: |
Solid-state relays are housed in a phenolic resin based material, sealed with DO-270 epoxy compound |
| Physical Dimensions: |
4 inches long (including mounting wings) by 2-1/16 inches wide by 1-1/8 inches thick (including conductor screw-down connectors) |
| Operating Temp. Range: |
0 to +150 degrees F |
| |
|
uM260 Micro Monitor Part No. 9800-6260
Finding the right size monitor for all of your cable pressurization system monitoring needs just got a whole lot easier. Not only does System Studies offer two versions of our popular 289H Loop Surveillance System™ monitor, we now have a new, inexpensive cable pressurization system monitor that can be used both in small central offices or environmental huts to monitor the isolated pressurized plant.
The new –48VDC-powered uM260 Micro Monitor™ provides scanning and alarming capabilities for up to 16 resistive or current loop monitoring devices, four binary contactors, and one contact
control output. Device data can be accessed via analog modem or Local Area Network. To accommodate these communications methods and keep costs low, two versions of the uM260 monitor are offered: one with an on-board 33600 baud modem (Part No. 9800-6260M) and the other with a TCP/IP Ethernet port (Part No. 9800-6260L).
Not only are these communications options available for the new monitor, there are also two user interface modes provided: a text menu user interface for modem sessions, and a web browser (HTML/Javascript) interface for LAN communications. Both modes provide access to system setup (data entry) and device data (read only) via password-controlled logins. Like a typical cable pressurization monitor, the uM260 Micro Monitor provides alarm notification when pressure or flow readings cross pre-defined alarm thresholds or when binary devices change from their normal, non-alarm state. The 9800-6260L (LAN version) accommodates one alarm center and up to three email alarm notification addresses. The 9800-6260M (modem version) provides for two alarm centers.
Applications
The uM260 Micro Monitor can be used as a simple stand-alone unit to provide threshold alarming and alarm distribution, or as a data collection device for PressureMAP™ and PressureMAP Server™. In both applications the Micro Monitor makes small office monitoring an affordable reality. And, unlike other monitors, the new uM260 can be installed on the field side of a section of fiber optic feeder cable and used to monitor devices on copper pairs.
The uM260 contains a small controller board equipped with relays for 20 monitoring devices. A 25-pair amphenol cable connector, located at the back of the unit, provides the incoming electrical connection for the monitoring devices. And to simplify device wiring, System Studies provides an internally-wired, dedicated connector block (Part No. 9800-6055) for terminating monitoring devices.
In addition to its 20-device monitoring capability, one of the more useful applications of the uM260 Micro Monitor is its ability to automatically activate an output contact control switch when a designated monitoring device goes into alarm. There are numerous possibilities for this application. For example, the control switch could be used to turn on a remote nitrogen tank when a monitored cable generates a low pressure alarm. Or it could be used in the central office to activate a fan when temperature exceeds a setpoint. Whether the output contact control is coupled for automatic activation with another monitoring device or activated manually, the feature provides an important and easily accessible remote switching capability.
uM260 Micro Monitor (continued)
How it Works
The uM260 continually scans all installed monitoring points approximately three times a minute. For each device scanned the monitor identifies the type of device (pressure, flow, binary) and device output (resistive, current loop), makes a reading, converts and stores the device reading, and tests for an alarm condition. An altitude designation, entered during the data entry process, provides barometric pressure correction for all installed 4-20mA current loop devices.
Once each device has been scanned, the monitor processes any alarms that were detected during the process and calls the designated alarm center(s). The uM260 then begins the next scan cycle, and repeats the process described above.
In the uM26's stand-alone (non-PressureMAP) mode, flow devices will always alarm when air flow exceeds the threshold. Similarly, pressure devices will alarm when pressure decreases below the threshold. Binary contacts can be set as either normally open or normally closed, and they will alarm when they reach the state that is opposite the designated normal state. Alarms are sent only once to each enabled alarm center, beginning with Alarm Center #1. They will remain in the Alarm Center files until existing communications sessions are closed. Incoming user connections are disabled until alarms have been sent.
When used with PressureMAP, the uM260 functions much like any other monitor, providing readings for analysis and possible alarm distribution by PressureMAP. If a uM260 threshold alarm meets PressureMAP's criteria for an alarm, the information is distributed to one or more alarm centers along with pertinent dispatching information.
Whether the uM260 is used in the stand-alone mode or with PressureMAP, users can dial-in or telnet into the monitor to access device information and perform data editing (if they have the proper authorization).
Setup and Operation
The requirements for setting up the uM260 monitor for operation are relatively simple and straightforward. The process involves installing the actual hardware, hooking up the power supply (-48VDC), obtaining a phone line or IP address, and completing the wiring of the monitoring devices. With adequate advance preparation, these procedures can be performed smoothly in a relatively short period of time.
From a data entry standpoint, it is necessary to access the monitor via the Edit mode and build the database for the office. This process includes changing the default User and Edit mode passwords (if desired), entering the office name and elevation (for barometric altitude correction of 4-20 mA transducers), and defining the Alarm Center(s), including the phone numbers (Modem version) or email IP addresses (LAN version). Once the office has been set up, monitoring device information can be entered for each of the four binary devices and 16 resistive or current loop transducers. Binary devices are designated as Device Numbers 1-1 through 1-4, and the transducers are Device Numbers 2-1 through 2-16. The output contact closure device is designated as Device Number 3-1. It can be turned on and off manually through the Edit mode or tied to alarming function of one of the 20 monitoring devices.
uM260 Micro Monitor (continued)
Sensor Specifications
| Part Numbers: |
9800-6260M (Modem-equipped)
9800-6260L (LAN Ethernet port)
|
| Monitoring Capability: |
16 4-20mA or resistive TDs
4 binary contacts
Continuous scanning
1 alarm per device |
| Controls: |
1 output contactor (1A max)
Can be tied to device alarm |
| User Interface: |
Text Menu (modem/LAN versions)
HTML/Javascript (LAN version) |
| Power: |
-48V DC, LED Power-on indicator |
| Fuse Protection: |
100mA |
| Communications LAN Version: |
10/100 Ethernet TCP/IP
Port number, 10001
Connector, RJ-45 |
| Communications Modem Version: |
9600 – 2400 baud
9600, default baud rate
Connector, RJ-11 |
| Ports: |
One (1), Serial Connector, DB-9 female |
| Device Connection: |
Standard 25 pair amphenol |
| On-Board RAM: |
1KB |
| Mounting: |
Rack, vertical or horizontal |
| Dimensions: |
9.25 in Wide x 5.14 in Deep x 1.25 in High |
| Weight: |
1.25 lbs |
| |
|
289H LSS Monitor Part No. 9800-6302
Simplicity in design can offer optimum efficiency and versatility at a lower cost. It provides the basis for more performance options now, while opening the way for greater adaptability to the changing requirements of the outside plant in future years. The 289H LSS™ (Part No. 9800-6302) makes this possible and more. In the years since its introduction, it has proven its dependability and advanced the state-of-the-art of cable pressurization.
Simply stated, the 289H LSS is better than conventional monitors because it's simpler. The reason the 289H LSS is simpler is that it works in partnership with the complex and powerful Management
Analysis Program™ (MAP) software. The MAP software—consisting of PressureMAP™, AlarmMAP™, ReportMAP™ and CableMAP™—analyzes data received from monitors to provide a multitude of sophisticated monitoring functions.
Most conventional monitors include components that enable them to perform some basic computing, such as comparing trends and producing rudimentary reports. The 289H LSS leaves the computing to the MAP System. The 289H LSS simply serves as the link between PressureMAP and monitoring devices in the field.
Because the 289H LSS takes its instructions from PressureMAP, it requires less complex on-board microprocessors and fewer CPU memory components. The result: a machine with less components to break down. And there is no need of programming or backups, ever.
How It Works
The MAP software calls the 289H LSS every two hours for a full report of all monitoring devices. When the MAP software makes contact, it requests a reading from "pin" number one. The 289H LSS checks this pair, if it is on a subscriber circuit, to see if it's busy. If it is not, the 289H LSS takes an electrical output reading from the device wired to pin one. This reading is then transmitted to the MAP software where it is converted into a pressure or flow reading. The remaining pins are interrogated using the same process.
In addition to providing readings during the normal call cycle, the 289H LSS will alert PressureMAP to possible alarm conditions. This callout function assures that no alarm will go undetected. PressureMAP then performs some sophisticated analysis and filtering of the data supplied by the 289H LSS. The resulting data is made available to the user either by directly or remotely accessing the MAP System. Critical alarm information is distributed automatically minutes after it is received and evaluated.
Cost Savings and Monitoring Advantages
- Easy Installation The 289H LSS is less expensive and easier to install than its more complicated counterparts. And because the 289H LSS relies on PressureMAP for data, the cutover from existing monitors is significantly streamlined through PressureMAP's data conversion process.
- For Sparton Users A new 36 pair Sparton Dedicated Replacement Card further simplifies the conversion process. This card accepts the existing cables used to connect the transducer cross-connect block to the Sparton monitor, eliminating the need for costly re-wiring.
289H LSS Monitor (continued)
- No Programming and Data Input Since the 289H LSS does not have a database, there are no new setup procedures to learn and perform. Also, the need for time-consuming data input is eliminated.
- No Backups and Restorals With no database to maintain, the normal precaution of routinely backing up your monitoring system is not required.
- Reduced Maintenance Normal maintenance and troubleshooting time associated with monitoring systems is significantly reduced because there is less hardware and fewer circuit boards in the 289H LSS than in conventional monitoring systems.
- Tone Generation Capabilities The 289H LSS contains electronic components that make it possible to place a pseudo-data tone on dedicated monitoring pairs to prevent them from being stolen. With PressureMAP's 289H Diagnostics, you can select tone frequencies, change or restore default values, and apply tone to desired pairs.
- Addressable Transducers The 289H can be purchased with one or more addressable monitoring cards. Each accommodates up to 8 addressable pairs (with a possible 127 device addresses) and 24 dedicated pairs.
- Alert Capabilities Along with providing readings during the PressureMAP calling cycle, the 289H LSS will also notify PressureMAP when a possible alarm condition is detected.
- Adaptability The 289H LSS works with all central office switches on all POTS lines.
Benefits of Single Database
- Easily Updated Conventional monitoring systems are "hardware dependent." This means that any updates or improvements to the system require equipment modifications within each monitor. Because the 289H LSS is "software dependent," every system can continue to benefit from ongoing research and development at System Studies.
- Centralized Access To obtain data from any of the 289H LSS monitors in a system, you need to know only one phone number and one password: your login parameters for the MAP software. That's one of the advantages of a centralized database.
- Centralized Data Another advantage is that system analysis and office monitoring evaluations are much easier and much less time-consuming to perform with a centralized database. Reports for multiple offices are generated both automatically and manually by the centralized system.
- Advanced Reading Capabilities Not only does the 289H LSS read resistive transducers, but it also reads solid-state loop current devices, such as the High Resolution Transducers™. In addition, the 289H offers improved line diagnostics on device pairs for more detailed system information.
289H LSS Monitor (continued)
Sensor Specifications
| Subscriber Points: |
25 per board
|
| Dedicated Points: |
50 per board |
| Addressable Points: |
127 per pair, 8 pairs per card |
| Maximum Devices per Monitor: |
1000 devices |
| Modem: |
2400 or 9600 baud (depending on version) |
| LAN Connection: |
With LAN Controller Card
provides two-way communications
between 289H and PressureMAP over company's
local area network |
| Power: |
48 VDC +/- 10% 20W |
| Sensors: |
Pressure and flow transducers (resistive, current
loop and addressable), contact alarms, contactors, special application
sensors |
| Ports: |
One (1), Serial Connector, DB-9 female |
| Device Connection: |
Standard 25 pair amphenol |
| Size: |
21.5" x 12.5" x 12" (23" rack) |
| Shipping Weight: |
39 pounds |
|
|
289H-M LSS Monitor Part No. 9800-6302M
To meet the monitoring demands of a small office, System Studies offers a "mini" monitor based on the highly successful 289H Loop Surveillance System (LSS)™. Reduced in size but not in function, the 289H-M LSS™ provides all of the features of its predecessor in a compact, rack mountable configuration.
Because it receives much of its instruction from PressureMAP™ and shares PressureMAP's device database, the 289H-M LSS has
minimal data storage requirements of its own. This eliminates the need for expensive memory components and results in a simpler, more dependable monitor.
How It Works
The 289H-M LSS sequentially accesses raw data from pressure and flow transducers, contact alarms, and contactor devices installed at central office and field locations. It then stores the device information for PressureMAP. PressureMAP calls the 289H-M LSS every two hours to obtain readings. When contact is made with the 289H-M, it requests data for each designated monitoring point, starting with device relay number one and ending with the last working relay.
PressureMAP then interprets the data and performs the analysis required to prioritize dispatch information and identify alarm conditions. This data, as well as device history information, is made available to users via PressureMAP's user-access menus and reports.
In addition to providing readings during the scheduled calling cycle, the 289H-M will alert PressureMAP between calling cycles if a possible alarm condition occurs at one of the monitored devices.
Cost Savings and Monitoring Advantages
-
Easy Installation The 289H-M LSS can be installed and placed in operation in a fraction of the time required for other small office monitors. And with PressureMAP's conversion worksheets, cutovers from existing system are greatly simplified.
-
No Programming and Data Input Since the 289H-M LSS does not require a database, there are no new setup procedures to learn and perform. Also, the need for time-consuming data input is eliminated.
-
No Backups and Restorals With no database to maintain, the normal precaution of manually backing up your office monitor is not required—nor are restoral or reprogramming.
-
Tone Generation Capabilities The 289H-MT models contain electronic components that make it possible to place a pseudo-data tone on dedicated pairs to prevent them from being stolen. With PressureMAP's 289H Diagnostics, you can select tone frequencies, change or restore default values, and apply tone to desired pairs.
-
Alert Capabilities Along with providing readings during the PressureMAP calling cycle, the 289H-M LSS will also notify PressureMAP when a possible alarm condition is detected.
-
LAN Access If desired, the 289H-M can be ordered with a LAN Controller Card that makes it possible to access data and receive alerts using a company's local area network (LAN).
289H-M LSS Monitor (continued)
-
Simplified Sparton Conversion To assist in the process of cutting over from a Sparton monitor, the 289H-M can be ordered with a special 36 pair dedicated card. This card accepts the existing cables used to connect the transducer cross-connect block to the Sparton, eliminating the need for costly re-wiring.
-
Adaptability The 289H-M LSS works with all central office switches on all POTS lines. It also reads both resistive transducers and the 4 to 20 milliamperes (mA) current loop devices.
-
Diagnostic Benefits All device circuits wired to the 289H-M monitor can be evaluated for trouble and manually tested for resistive leakage, voltage and capacitance from PressureMAP. This function gives you the ability to remotely test device circuits without having to actually visit the monitor site.
Specifications
Chassis Design The 289H-M LSS chassis is constructed of cold rolled steel and equipped with openings in the rear panel for accessing cable connectors, power and alarm connection modules, and phone line/network connection inputs. Access to the power and alarm disable switches is available by removing the front/top panel.
| Chassis Design: |
The 289H-M LSS chassis is constructed of cold rolled steel and equipped with openings in the rear panel for accessing cable connectors, power and alarm connection modules, and phone line/network connection inputs. Access to the power and alarm disable switches is available by removing the front/top panel.
|
| Dimensions: |
Height: 3.5 in, 8.89 cm. Width: 15 in, 38.1 cm. Depth: 11.5 in, 29.21 cm. |
| Shipping Weight: |
14 pounds (6.3 kg) |
| Rack Size: |
Can be mounted in either a 23-inch or 19-inch equipment rack using specially designed L-type brackets
|
| LAN Connection: |
With LAN Controller Card, provides two-way communications between 289H-M and PressureMAP over company's local area network
|
| Power: |
48 VDC nominal (operates in the range of 40 to 56.7 volts direct current) fused at 1.3 amp
|
| Grounding: |
Can operate with integrated ground and isolated ground
|
| Operating Temperature Range: |
-40–120 degrees Fahrenheit
|
Humidity: |
0-95 percent Relative Humidity
|
| Foreign Voltage Check: |
Each conductor is checked for presence of high AC voltage prior to the initial test
|
289H-M LSS Monitor
Specifications (continued)
| Foreign Battery Check: |
The line is grounded to remove the presence of leakage charge and test for foreign battery
|
| Resistive Measurement: |
Ability to read any resistive contactor, transducer, device or pair resistance over the range from 1 kilohms to 25 megohms |
| Controls: |
1 output contactor (1A max)
Can be tied to device alarm |
| Current Loop Measurement: |
Ability to read any transducer which has a 4–20 milliamperes transmitter output and operates from 12–40 VDC at the transmitter |
| Pair Diagnostics: |
The 289H-M LSS, in conjunction with the PressureMAP software, can perform the following tests on dedicated and subscriber pairs: Leakage Test (Resistance on tip/gnd, ring/gnd and across tip and ring)
Voltage (both AC and DC readings on tip/gnd and ring/gnd) Capacitance (indicates a possible OPEN circuit—either in or outside of the office) |
Model Variations
The 289H-M accommodates one Controller Card, one Utility Card and one Relay Card, but there are numerous ordering options. For example, there are four types of relay cards, plus you can select LAN, Tone, or both LAN and Tone capabilities for most of the relay cards offered.
See
289H-M LSS for model options.
LAN Controller Card Part No. 9800-0030
One of the most significant 289H LSS™ developments to come along in recent years has been the design of the LAN Controller Card (Part No. 9800-0030). This component opens the door for two-way communications between PressureMAP™ and the 289H LSS and 289H-M LSS™ monitors over a local area network (LAN).
The card is equipped with a LAN module, which replaces the modem circuitry on the original 289H Controller Card. The module draws its power directly
from the card's 5 VDC power supply. Surge and over-voltage protection for the 289H's measurement circuit provide additional improvements that were not
included on the original 289H Controller Card. The LAN Controller Card has an RS-232 serial port connector that is used during setup. When
configuring the LAN Controller Card for a specific network, a straight DB9 male to female serial cable is used to connect the card to a PC terminal or laptop computer.
Upon power up, a LAN Controller user interface displays simple instructions to prompt the user to enter the Setup Menu where the required local IP Address, Subnet Mask, Gateway Address and Port Number can be defined.
When exiting the Setup Menu, the user interface instructs the user to configure the system for the Running Mode. This consists simply of setting two
configuration dip switches on the 289H LAN Controller Card to the run mode, placing a network cable between the RJ-45 connector on the LAN Controller
card and the Host Ethernet port, and rebooting the 289H or 289H-M monitor. At this point the LAN Controller is ready to communicate with the remote
Host Ethernet port.
Specifications
| Power: |
–48 volts DC from 289H LSS chassis |
| On Board Cable Connections: |
One RJ-45 network connector; one RS-232 / DB-9 F connector |
| Required Cables: |
Cat. 5 Ethernet cable (not supplied)
CDB9 F/M Straight Cable (supplied). Used to connect LAN Controller card’s serial port socket to COM1 port on PC for initial configuration |
| Baudrate: |
9600bps |
| Ethernet: |
10 Base-T |
| Protocol: |
TCP/IP |
| Setup Requirements: |
On-board 2-position Dip Switches for default setup mode, run mode and serial mode Menu-driven IP Address configuration procedure |
| Warranty: |
1 year |
Tone Utility Card Part No. 9010-0016
One of the most time consuming tasks associated with installing new pressure and flow monitoring devices in a cable pressurization system is locating and confirming assigned device pairs. To simplify this task and help to prevent device pairs from being "stolen" for other purposes, PressureMAP™ and properly equipped 289H and 289H-M LSS™ monitors now provide options for placing tone frequencies on dedicated device pairs.
This means that a maintenance technician in the field, equipped with a laptop computer and an inductive tone locating probe, can access PressureMAP
directly, instruct the 289H LSS to place a specific tone frequency on the assigned pair ("locater" tone), and use the probe to positively identify the
pair. Once the transducer
has been installed, the technician can then request a realtime reading from PressureMAP to confirm the proper operation of the device.
Thanks to the Tone Utility Card and improvements in the 289H dedicated relay cards, these diagnostics capabilities can be performed within minutes without the help of another technician inside the central office. What's more, a pseudo-data tone can be placed on all dedicated monitoring pairs connected to the 289H-M or 289H primary (main) chassis in an office to prevent unauthorized use by splicers and other personnel. This "pair-saver" tone
helps to ensure that pairs assigned for cable pressurization system monitoring remain available for their important monitoring function.
Functional Components
The Tone Utility Card (Part No. 9010-0016) contains the 48-volt DC power supply and fuses for the 289H LSS chassis. It is also equipped with a power
switch, an alarm enable/disable switch, and a dual function tone generator. This tone generation device makes it possible to transmit the pseudo-data
tone or selected tone frequency on the monitoring device pairs wired to the 289H monitor. Using PressureMAP's Diagnostic utility, a technician can
route a selected "locator tone" to specified pairs, or place a "pair-saver tone" on all monitoring devices connected to a 289H Dedicated Relay card.
PressureMAP also provides options for selecting default frequencies for both the locator tone and the pseudo-data tone.
In order to utilize these tone generation capabilities, the 289H or 289H-M monitor must be equipped with a tone-capable Controller Card (EPROM version
B05 or greater), a Tone Utility Card, and one or more Dedicated Tone Relay cards (all cards manufactured since December, 1998). Locator tone, on the
other hand, can be placed on both subscriber and dedicated pairs, as well as any dedicated pairs wired to a System Studies Universal Addressable
Monitoring Card (UAMC).
Tone Generation Selections
Tone generation controls are available from the 289H LSS Diagnostics Menu in PressureMAP. Three menu options are provided: 1) Get Tone Setting, 2) Set
Tone Default, and 3) Route Tone. Each of these options populates a Tone Information Menu with data pertaining to the selection. The possible frequency selections that can be applied to the Tone Utility Card are as follows:
- High/Low Frequency Alternating Tone
- 1700/1300 Hz (data); 580/450 Hz (locate)
Tone Utility Card
Tone Generation Selections (continued)
- High Frequency Pulsed Tone
- 1700 Hz (data); 580 Hz (locate)
- Low Frequency Continuous Tone
- 1300 Hz (data); 450 Hz (locate)
- High Frequency Continuous Tone
- 1700 Hz (data); 580 Hz (locate)
Tone Generation Limitation in 289H LSS Expansion Chassis
Please note that if a 289H LSS monitor is equipped with a Tone Utility Card and a Controller Card with a B05 (or higher) EPROM, full tone generation
capability (both data tone and locator tone) is possible in the main 289H chassis. Pseudo-data tone can be placed on pairs connected to any 25- or
50-pair dedicated relay card (Rev C and above), and locator tone can be placed on both dedicated and subscriber pairs. This includes the dedicated side
of a Universal Addressable Monitoring Card (UAMC), but excludes any pairs used with a Sparton Dedicated Replacement Card. When the tone-capable main chassis is connected to an expansion chassis, it is not possible to place pseudo-data tone on the dedicated pairs in the expansion chassis. However, the locator tone generation capability, as described above, will work with the applicable cards in the expansion chassis.
Specifications
| Controller Card EPROM Requirement: |
B05 and greater |
| Power: |
48 VDC @ 1.0 Amp, input (filtered battery) 3.3 VDC @ 4 Amp, +/- 2% to tone generator 5 VDC @ 2 Amp, +/- 2% to LSS
12 VDC @ 0.4 Amp, +/- 2% to LSS |
| Power Switch: |
toggle |
| Tone Generator: |
In data tone mode, tone is routed to all tone-capable relay cards when pairs are idle. Locate mode is available only from PMAP |
| Diagnostic Menu: |
When in locate mode, tone is routed to selected pair, and data tone is suspended for entire LSS |
| Tone Detection: |
Data Tone: inductive probe or Butt set; Locate Tone: inductive probe |
| LED: |
one (1) 48 Volt, power-on |
| Supply Fuses: |
one (1) 12 Volt, 0.5 A slow blow; two (2), 5 Volt, 1.6A/td>
|
| Alarm Off Switches: |
two (2) |
Universal Addressable Monitoring Card Part No. 9800-6112
A few years ago, System Studies Incorporated introduced an addressable monitoring card (AMC), which provides the ability for the 289H LSS™ monitor to read Chatlos addressable transducers, in addition to devices installed on dedicated pairs. This monitoring advance allows telcos to conserve conductor pairs while maintaining adequate monitoring standards.
System Studies’ new Universal Addressable Monitoring Card™ (UAMC) opens up a whole new world of addressable communications. Supported by PressureMAP™ Version 23 software, the UAMC (P/N 9800-6112) inherits the capabilities of the original AMC, and is designed to read Lancier, Nicotra, Inelcom, and Microsol addressable pressure transducers, and Sparton
addressable pressure and flow transducers. Our in-house testing has certified use of the UAMC with the Lancier, Nicotra and Sparton transducers; testing is still in progress for the other addressable transducers listed above.
The UAMC also contains new circuitry to increase noise immunity and reduce susceptibility to ground loop conditions.
Like the AMC, the UAMC contains relays for up to 8 addressable pairs (each with 127 addresses and 10 channels per address), plus 24 dedicated pairs. To achieve optimum performance, transducer installation should follow the guidelines in the 289H manual and manufacturer recommendations. All transducers on the same pair must use compatible line tuning and signaling techniques.
Since the UAMC provides the ability to communicate with four styles (or signaling protocols) of addressable transducers, a new 289H Diagnostics utility has been added in PressureMAP Version 23 for time-addressed devices. For Lancier, Nicotra and Inelcom devices, the new Pair Realtime Reading Test provides a realtime reading for all installed devices on the pair. (Individual realtime readings for these devices are not available.)
Stepping Up to the UAMC
Both the full-size 289H LSS monitor and the 289H-M "mini" monitor can be ordered to include the UAMC. The card can also be ordered separately to upgrade an existing 289H monitor.
To support the UAMC's expanded addressable capabilities, the 289H monitor must be properly configured, with the appropriate EPROM version on the controller card. For the most current information on EPROM versions, compatibility requirements and capabilities, please contact System Studies Technical Support.
Features
- Conserves monitoring pairs.
- Reads four styles (signaling protocols) of addressable transducers.
- Provides short circuit protection.
- Offers increased noise immunity.
Universal Addressable Monitoring Card (continued)
Specifications
| Monitor: |
289H LSS, 289H-M LSS |
| Relays: |
8 addressable (127 addresses per pair, 10 channels per address) |
| Qualified Addressable Transducers: |
Sparton 730, Sparton 734, Sparton 774, Lancier PtxA-210M, Nicotra TP204, Chatlos, System Studies |
| EPROM Requirements: |
C06, D03, E03, F02 or G02 (or higher) |
| Cabling Connectors: |
One addressable (female), one dedicated (female) |
| Power Requirement: |
48VDC from LSS backplane |
| Warranty: |
One (1) year |
|
|
Sparton Dedicated Replacement Card Part No. 9010-6116
Over a decade ago, System Studies Incorporated introduced the 289H LSS™ monitor to provide greater efficiency and adaptability than conventional monitors for meeting the changing requirements of the outside plant. With fewer components to break down, no need for internal programming or backups, and advanced pair diagnostics capabilities, the 289H is a natural choice for replacing older monitoring systems in the field.
Supported by PressureMAP Version 24 software, System Studies' new Sparton Dedicated Replacement Card™ (SPDR) streamlines the process of cutting over from a Sparton monitor to the 289H LSS. The new SPDR relay card (P/N 9800-6116) simplifies changing out the monitoring unit, and that advance saves the telco
money on labor costs—which would have multiplied the new equipment costs, but not now. With the SPDR there's no time-consuming rewiring, and no need for lengthy data changes.
The simplified cutover process means just a few steps to perform. Once the Sparton dedicated block's A, B and C cables are unplugged from the Sparton module's J1, J2 and J3 connectors and the 289H is in place, each A, B or C cable connects directly to an SPDR card in the 289H chassis, without the need for special adapter cables. Then PressureMAP's 289H conversion utility automatically adapts the data for each card's installed devices. (Although automatic data conversion capability for the SPDR is effective with PressureMAP Version 24, the card can be installed for use with Version 23 if the data is manually converted.) The SPDR contains relays for up to 36 dedicated Sparton pairs and employs an easy-to-use on-card dipswitch that can be set for A, B or C configuration (as appropriate), to translate the Sparton cable's pinout for 289H monitoring. Labeled LED indicator lights at the front edge of the SPDR identify the installed card’s current setting.
Like System Studies' standard Dedicated relay card, the SPDR allows a pseudo-data tone to be placed on the pairs to prevent them from being stolen. PressureMAP’s 289H Diagnostics utility provides the capability to select tone frequency and change or restore default values. (However, because of the Sparton cable's common tip configuration, the ability to route "locater" tone to specific pairs via the SPDR is not available.)
All transducer pairs entering the SPDR card must be protected by central office primary voltage and current protection blocks.
Changing Over with SPDR
Both the full-size 289H LSS monitor and the 289H-M "mini" monitor can be ordered to include the SPDR. The card(s) can also be ordered separately for an existing 289H monitor. Please note that SPDR cards must be placed in the 289H chassis in front of other relay card types, and that they must be ordered (configured) as A, B, C, A, B, C, etc.
To support the SPDR, the 289H must be equipped with the appropriate EPROM version on the controller card. For the most current information on EPROM versions, compatibility requirements and capabilities, please contact System Studies Technical Support.
Sparton Dedicated Replacement Card (continued)
The PressureMAP 289H Conversion software translates each Sparton device record's module and input number to the appropriate 289H access number (card and relay number). Before cutting over to the 289H monitor, it is recommended that the Sparton offices to be converted be called first using PressureMAP Version 24, to insure that the device Module and Input# fields are correct. For the 5300B and 5318 monitors, the call will automatically update this information in PressureMAP. Please note that for a 5301A monitor, the module information is not available, so device Module fields must be updated manually. The cutover can then proceed as described in the 289H LSS Installation and Operations manual. During the data conversion process, the user is given the opportunity to edit any assigned access number.
(For detailed information on the 289H Conversion process, please refer to the Special Data Entry section of the MAP Data Entry Manual.)
Once the conversion is complete, PressureMAP can begin to collect readings for the new 289H office on a regular schedule.
Specifications
| Monitor: |
289H LSS, 289H-M LSS |
| Relays: |
50 relays (translating 36-point dedicated Sparton pinout) Setup Requirements: On-board dipswitch for Sparton A, B and C cable configurations |
| EPROM Requirements: |
C07, D04, E04, F03 or G03 (or higher) |
| Cabling Connectors: |
One dedicated female connector |
| Power Requirement: |
48VDC from LSS backplane |
| Warranty: |
One (1) year |
|
|
Sparton Subscriber Line Adapter Module Part No. 9010-6046
The 289H LSS monitor has long been without rival in terms of value, performance, dependability and capability. What once served as a simple data-gathering device, has progressively evolved into the most feature-rich and powerful cable pressurization monitor available
anywhere. A full complement of diagnostic functions, the capability of placing pseudo-data tone and locator tone on device pairs, and an ever-expanding list of readable device types have effectively raised the performance standard of the 289H LSS beyond the reach of other monitors.
While operational simplicity was once the catchword during the early days of the 289H LSS, simplicity in Sparton monitor replacement is now the buzz among our many Telco customers. With the introduction of the Sparton Dedicated Replacement Card (P/N 9800-6116) and now the Sparton Subscriber Line Adapter Module (P/N 9800-6046), Telcos have exactly what's needed to streamline the process of changing out monitors. Both products eliminate the need for costly re-wiring of connector blocks and running new jumpers in the central office. They enable you to disconnect the existing cables from your Sparton monitor and snap them into the appropriate connectors on the 289H equipment. What could be simpler?
How it Works
The Sparton Subscriber Line Adapter Module (SSLAM) is a central office component that enables the 289H LSS to work with existing Sparton subscriber blocks. The SSLAM consists of twelve 25-pair female amphenol connectors separated into two groups of six and mounted to two 24-inch wide mounting bars. The first six amphenol connectors are grouped together on one side of the SSLAM and are used to accept two sets of subscriber line A, B and C cables from two Sparton Telxon subscriber blocks. The remaining group of six connectors is used for the cables to the 289H LSS subscriber relay cards. Sparton subscriber modules have three 25-pair amphenol connectors (for Sparton cables A, B and C) to accommodate a total of 36 measurement points from the Sparton blocks. Since the monitoring pairs are not ordered sequentially (which is a requirement for the 289H LSS), the Sparton Subscriber Line Adapter Module is necessary to translate or convert the monitoring points from the Sparton subscriber module to the 289H subscriber card. The conversion is achieved during manufacturing of the SSLAM by cross-wiring the conductors that run from the Sparton side of the SSLAM to the 289H side.
Data Conversion
One Sparton Subscriber Line Adapter Module accommodates two subscriber blocks (up to 72 monitoring pairs). On the 289H end, three Subscriber Relay Cards are required for this 72-pair total, with each card utilizing only the first 24 of its maximum 25 relays. To assist in converting a Sparton office's PressureMAP device data into 289H LSS format, a PressureMAP Access Number Conversion Chart is included with the SSLAM Installation Instructions. This chart maps the Sparton Input Number to the 289H LSS Access number. Additional data entry procedures are described in Section 10 of the MAP System Data Entry manual.
With the bulk of the time-consuming, manual cutover process eliminated by using a Sparton Subscriber Line Adapter Module, only a simplified data entry procedure is required to fully utilize the many capabilities and benefits of the 289H LSS monitor.
Sparton Subscriber Line Adapter Module (continued)
Model Specifications
Features: |
| |
Translates Sparton A, B and C cable pinouts
Translates two subscriber blocks (72 pairs) |
| Physical: |
| |
24" x 4" x 3" overall dimension
Two Aluminum, pre-drilled mounting bars
Plexiglas protection shield (for conductor wires)
6 standard female amphenol cable connectors mounted on left (for Sparton A, B, and C cables)
6 standard female amphenol cable connectors mounted on right (for 289H cables)
Mounting hardware for 3" x 23" equipment rack
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Flow Finders
It's a long-standing problem in pressurized cable system maintenance. For technicians chasing leaks, it's perplexing. And frustrating. The problem is: air flow measurements seldom add up; the parts simply don't equal the whole.
Sometimes the methods are suspect. But most often the fault is in the measurement equipment itself—the obvious example being the widely used portable flow rater.
Using this device means air flow is rerouted through pressure testing valves that significantly restrict air flow. The end result is an inaccurate flow measurement created by the measurement
device itself. That's precisely why System Studies developed its Flow Finder and Flow Gauge equipment.
How They Work
Flow Finders are installed "permanently" in the air pipe at the pipe alarm panels, on each of the Ts at air pipe junctions, at the manifold locations and at meter panels in the central office.
Air flow is determined by measuring the pressure differential over the Flow Finder's internal calibrated orifice. There's no rerouting of the air flow. Flow is stable and uninterrupted. As a result, truly accurate measurements are possible. The portable Flow Gauge is used to translate the Flow Finder's pressure readings into precise flow readings. And, because the four color-coded reading scales on the Flow Gauge correspond to the four Flow Finder ranges, determining the flow reading is easy.
Accuracy You Can Count On
There's virtually no chance of a Flow Finder falling out of calibration. Its orifices are made of stainless steel. And there simply aren't any moving parts to affect readings.
The Flow Gauge, which requires no batteries, is easily attached to the Flow Finder. A single Flow Gauge is capable of reading any flow range. By using the adjustment button on the Flow Gauge, even pegged flow readings are easily obtained.
System Troubleshooting—With Ease and Confidence
Using the Flow Finder and Flow Gauge, you can quickly identify leaks, ghost manifolds and cheater hoses; analyze and locate leaks with greater efficiency, verify flow transducer readings; and tag air pipes. Best of all, you'll know your flow measurements will add up.
Flow Finders (continued)
Ranges
Flow Finders are offered in the following seven air flow ranges and are calibrated in Standard Cubic Feet per Hour (SCFH).
| Part No. |
Range |
Color Code |
| 9800-3003 |
0–9.5 SCFH |
Green |
| 9800-3004 |
0–9.5 SCFH (supplied with external check valve) |
Green |
| 9800-3005 |
0–19 SCFH |
Red |
| 9800-3006 |
0–47.5 SCFH |
Blue |
| 9800-3008 |
0–95 SCFH |
Purple |
| 9800-3190 |
0–190 SCFH |
Black |
| 9800-3097 |
0–475 SCFH |
Blue |
| 9800-3098 |
0–950 SCFH |
Black |
| |
|
|
Specifications
| Mechanical: |
The housing is constructed of molded thermoplastic nylon, and the over-all length is 3.0 inches. Input and output ports are ¼" NPT female threads. Flow Finders contain a precision stainless steel orifice, which results in a small pressure drop directly related to the amount of air flow. Mechanical parts are brass, nickel-plated. The Flow Finders are supplied with mounting brackets and pipe tags. |
| Performance: |
The pressure drop across Flow Finders (all ranges) is 0.188 Pounds per Square Inch (PSI) at full air flow and 0.05 PSI at half flow. Accuracy of air flow reading is ±1% of full scale reading. |
| Readings: |
Flow Finders are provided with two tank valve fittings and a locking stud designed to mate with the Flow Gauge. For high valve readings, the Model 3030 High Valve Assembly enables remote flow readings to be taken at distances up to 500 feet from the Flow Finder. A special twin hose provides the inter-connection. |
| Installation: |
Flow Finders are designed to be placed in air pipe systems in order to measure the air flow at various locations (Pipe Alarm Panels, Air Pipe (in line), Air Pipe Junctions, Air Pipe Manifolds, Cable Fed from Manifold, Pole Mounted Compressor, and Bypass Valves). Two pipe fittings with bonding strap are required when installing a Flow Finder in an air pipe system. Flow Finders can be installed in 3/8" O.D. plastic tubing by using ¼" NPT-M to 3/8" O.D. tubing adapters. |
| |
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Flow Measurement Assembly Part No. 9800-3063
As far as measuring air flow, nothing beats the accuracy and reliability of Flow Finders™. And nothing performs this function as well remotely as the High Resolution Transducers™. To offer you the best in air flow measurement and monitoring, System Studies has put these two products together in an easy to install package.
The Flow Measurement Assembly™ (Part Nos. 9800-3063 and 9800-3066) is the ideal component for all air pipe manifold locations where Flow Finders have not been previously installed. It is the offspring of System Studies' Manifold Monitoring Assembly,
which includes one or two Flow Finder Manifolds™ and a High Resolution Transducer. When you want to use your existing air pipe manifolds in order to save on costs and time, the Flow Measurement Assembly is the device for you.
The Flow Measurement Assembly comes preassembled on a stainless steel mounting bracket. You have a choice between a High Resolution Dual (pressure and flow) Transducer or a High Resolution Flow Transducer. You can also select one of four Flow Finder ranges, either 0–9.5, 0–19, 0–47.5 or 0–95 Standard Cubic Feet per Hour (SCFH) to suit your specific needs. The transducer is equipped with an internal splice case for quick access to device pairs. To make the electrical connection, the transducer is available in two configurations: one with connectors for use with 3/8" tubing, one with 37° flange stainless steel tubing. The Flow Finder to air pipe pneumatic connections can be made with 1/4" female to air pipe fittings.
Easy Installation
Designed for quick installation, the mounting bracket of the Flow Measurement Assembly is easily secured to the access hole wall with the bolts supplied. A stainless steel cover is available with the assembly as an accessory to protect it in busy access hole locations. Because the pneumatic connections between the Flow Finder and the transducer are already completed, only two simple connections need to be made: installing the Flow Measurement Assembly in the air pipe and splicing the transducer to the designated monitoring pairs.
Here's How it Works
The Flow Finder installed on the Flow Measurement Assembly creates a pressure differential across an internal calibrated orifice. This differential is converted to a meaningful flow measurement by the High Resolution Transducer. This unique transducer, which uses state-of-the-art "chip" technology outputs in loop current rather than electrical resistance. Because of its solid-state design, and the fact that it has no mechanical parts, the High Resolution Transducer does not experience the problems associated with resistive, mechanical transducers. It provides accurate readings with much greater resolution than previous devices.
Because of the Flow Measurement Assembly design, manual flow (and pressure) readings are totally accessible. Simply connect a Flow Gauge™ sampler (or C pressure gauge) to the sampler valves on top of the transducer to obtain a reading. It's as easy as that. There's no air to re-route, no manifold to shut off. And high flow and pressure readings aren't a problem with the Flow Measurement Assembly. The High Resolution Transducer can read up to twice the reading range of the Flow Finder, in 1 SCFH increments. This means that flows as high as 190 SCFH (using a 0-95 SCFH Flow Finder) can be monitored with the accuracy one would expect from a 0–9.5 SCFH device.
Flow Measurement Assembly (continued)
Assemblies equipped with a High Resolution Dual Transducer will give you pressure readings up to 30 Pounds per Square Inch (PSI)—over twice the range of other transducers. They also reduce the 0.5 PSI stepped readings provided by mechanical, resistive pressure transducers down to 0.1 PSI. The result: greater precision and versatility in every system monitoring application.
The Flow Measurement Assembly gives you the monitoring benefits you've been waiting for in a durable, easy to install package. For ordering information, contact your product standardization
department or call System Studies Incorporated.
Model Specifications
The Flow Measurement Assembly can be ordered in a variety of configurations to meet your specific needs. There are four flow measurement ranges available in Standard Cubic Feet per Hour (depending upon the range of Flow Finder ordered); two types of High Resolution Transducers (Flow or Dual); and two types of conductor hose fittings (for 3/8" plastic tubing and for 1/4" braided stainless steel tubing). Part No. 9800-3063 specifies the brass nickel-plated conductor fitting; Part No. 9800-3066 is supplied with a 37° stainless steel conductor tube fitting.
Please refer to the accompanying
ordering chart for product numbering.
| Mechanical: |
The Flow Measurement Assembly is made of stainless steel. It measures 8-3/8" (21 cm) by 6" (15 cm) high by 6" (15 cm) deep. The assembly's Flow Finders are made of molded, thermoplastic nylon. They are equipped with 1/4" NPT female threads. Flow Finders contain a precision, stainless steel orifice which creates a small pressure drop directly related to the amount of air flow. Mechanical parts are brass, nickel plated.
The High Resolution Transducer housing is constructed of Zinc 5 metal and equipped with two 1/8-inch, stainless steel tubes to provide the pneumatic connection to the Flow Finder. The optional stainless steel cover protects these critical components from accidental damage.
The transducer contains a removable wire cover to provide access to the device pairs. A working pair is supplied for each sensor, as well as a spare pair. |
| PART NUMBER |
RANGE* |
FITTING** |
TD TYPES*** |
| 9800-3063 |
W, X, Y, Z, YY |
BS, SS, NN, PP, PB |
1, 2 |
| 9800-3066 |
W, X, Y, Z, YY |
BS, SS, NN, PP, PB |
1, 2 |
| Please note that a part number, range, fitting and TD type must be specified for each Flow Measurement Assembly when ordering. |
| Part Number Distinctions: |
| 9800-3063 |
Transducer supplied with brass, nickel-plated conductor tubing connector |
| 9800-3066 |
Transducer supplied with 37° stainless steel conductor tubing connector |
| * Flow Finger Ranges: |
| W |
0–9.5 SCFH |
| X |
0–19 SCFH |
| Y |
0–47.5 SCFH |
| Z |
0–95 SCFH |
| YY |
0–475 SCFH (for 1" air pipe system) |
| ** Fitting: |
| These fittings pertain to the pneumatic connections on the incoming and outgoing ports of the Flow Finder. |
| BS |
Nickel-plated brass, standard tubing connectors (not available for YY) |
| SS |
Stainless steel, 37° flared tubing connectors (not available for YY) |
| NN |
No pipe or tubing connectors |
| PP |
Pipe fittings on both ends |
| PB |
No pipe fitting on one end, tubing connector on the other end (not available for YY) |
| *** TD Types: |
| 1 |
High Resolution Flow Transducer |
| 2 |
High Resolution Dual Transducer (Recommended) |
Ordering Examples:
If you ordered a 3063-X-NN-2 Flow Measurement Assembly, you would receive a bracket with a 0–19 SCFH Flow Finder and a High Resolution Dual Transducer with a nickel-plated brass conductor tube fitting. The Flow Finder would not be supplied with tubing connectors.
A 3063-YY-PP-1 would include a 0–475 SCFH Flow Finder and a High Resolution Flow Transducer equipped with a nickel-plated brass conductor fitting on the transducer's wire cover assembly. The Flow Finder would include nickel-plated brass 1" air pipe connector fittings on the incoming and outgoing ports.
Flow Finder Manifold Part No. 9800-3060
When a technician measures air flow at manifold locations using a portable flow rater, the sum of the readings seldom adds up to the total flow indicated in the central office. Why? Because the air is rerouted and restricted. It has to pass through pressure testing valves and air chucks in order to be read with the flow rater. The result: inaccurate readings.
Then there's the issue of having to turn the manifold off and on. Before you can even take a reading with the portable flow rater, you have to close the shutoff valve on the manifold to the cable being fed. Simple enough. The problem is—you also have to remember to turn the shutoff valve back on, and not everybody does. So you begin to second-guess yourself.
The Solution
Imagine the convenience of using an air pipe manifold that has built-in Flow Finders™. A manifold that enables you to take accurate flow readings without having to reroute air and disturb air flow to the field. A manifold that eliminates the risk of forgetting to re-open the valve after you have taken your reading. A manifold that enables you to respond to pegged flow readings with a push of a button. The System Studies Flow Finder Manifold™ (Part No. 9800-3060 and 9800-3070) makes all of this possible. It is the first air pipe manifold designed as a serious leak locating tool.
Here's How it Works
Like a typical air pipe manifold, air enters the main chamber of the Flow Finder Manifold and is routed through the individual chambers that feed the cables. But that's where the similarity ends. Each chamber in the Flow Finder Manifold has a Flow Finder installed to measure the outgoing flow to the individual cable. Another Flow Finder—of a higher flow range—measures the incoming flow rate from the air pipe.
Each of the manifold's Flow Finders is equipped with an internal calibrated orifice which creates a slight pressure differential. This pressure value is converted to a flow rate when read by the Flow Gauge&trade. If the reading is off scale (pegged), you can simply depress the "times two" button on the Flow Gauge, read the adjusted value, and multiply by two. You'll get an accurate flow rate every time.
As the next step in the evolution of Flow Finder technology, the Flow Finder Manifold offers you unparalleled ease and accuracy in air flow measurement. Because there's no rerouting of the air flow, there's no waiting for the system to stabilize. You simply connect the Flow Gauge sampler, identify the appropriate color-coded scale, and read the flow rate. It takes only seconds.
Troubleshooting–Fast and Easy
Because flow measurements have become a crucial part of leak locating, you need tools that can be relied on for accuracy and dependability. With Flow Finders installed in-line between the delivery air flow and each cable, you can accurately track how much air is flowing to each cable. And by taking a measurement at the input Flow Finder, you can verify the flow transducer monitoring the manifold.
Flow Finder Manifold (continued)
The Flow Finder Manifold can also be used in conjunction with a high valve assembly, which can be permanently installed at a convenient location in the utility hole. This high valve installation enables remote flow readings to be taken from the Flow Finder Manifold, eliminating the need to climb into a utility hole.
Specifications
The Flow Finder Manifold (Part No. 9800-3060) is designed for installation at any traditional air pipe manifold location. The manifold has six Flow Finders—one to measure incoming flow and the remaining five for outgoing cable flows.
A five port manifold (Part No. 9800-3070) can be connected to the six port model when more than five cables are fed by an air pipe. This is done by extending a pipe nipple) between the two manifolds.
The six port and five port Flow Finder Manifolds can be ordered in several different configurations as indicated in the ordering chart. By offering a variety of Flow Finder ranges and hardware fittings for each port, you can select a manifold that will best suit your field conditions.
| Mechanical: |
The manifold housing is constructed of nickel-plated brass metal. Assembly parts and materials are either stainless steel or nickel-plated brass. The six port manifold is 3 inches (7.6 cm) high, 2 inches (6.4 cm) deep (including valves), and 6 inches (16.5 cm) wide. The five port manifold differs only in width. It measures 5 inches (13.3 cm) across. Mounting holes are centered and placed 3 inches (6.4 cm) apart. Input and output ports are available with a variety of fittings to meet system needs. All gaskets are made of silicone rubber.
Each internal Flow Finder contains a precision stainless steel orifice and is equipped with two tank valve fittings and a locking stud to accommodate a Flow Gauge or System Studies High Resolution Flow Transducer™. |
| Performance: |
The pressure drop across the Flow Finder internal orifice is 0.188 Pounds per Square Inch (PSI), or 0.027 kilopascals (kPa), at full air flow and 0.05 PSI (0.007 kPa) at half flow. These values pertain to all Flow Finder ranges.
Accuracy of an air flow reading is ±1 percent of the full scale reading.
|
| Operating Range: |
The System Studies Flow Finder Manifold has been thoroughly tested and confirmed for reliable operation within the following parameters:
– Operating Temperature Range: -40°F to +220°F
– Maximum Pressure: 20 PSI (3 kPa) above operating temperature range |
| Shipping Weight: |
6 pounds (2.7 kg)
|
| PART NUMBER |
RANGE* |
FITTING** |
| 9800-3060 |
L, M, H, C |
BS, BV, SS, SV |
| 9800-3070 |
L, M, H, C |
BS, BV, SS, SV |
| Please note that a part number, range and fitting type must be specified for each Flow Finder Manifold Assembly when ordering. |
| Part Number Distinctions: |
| 9800-3060 |
Six port manifold: one incoming measurement port, five outgoing ports to the cables |
| 9800-3070 |
Five port manifold (output ports only): used with 3060 manifold to feed up to ten cables |
| * Flow Finger Ranges: |
| L |
Input = 0–19 SCFH, Output = 0–9.5 SCFH |
| M |
Input = 0–47.5 SCFH, Output = 0–9.5 SCFH |
| H |
Input = 0–95 SCFH, Output = 0–19 SCFH |
| C |
Custom: Multiple output ranges to meet customer specifications |
| Note: Only to output range designations listed above pertain to the 3070 manifold |
| ** Fitting: |
| These fittings pertain to the pneumatic connections on the incoming and outgoing ports of the Flow Finder. |
| BS |
Supplied with nickel-plated brass, standard tubing connectors. Used with 3/8" plastic tubing. |
| BV |
Supplied with nickel-plated brass, standard tubing connectors, along with stainless steel check valves on all output ports. Used with 3/8" plastic tubing. |
| SS |
Supplied with stainless steel, 37° flared tubing connectors. Used with 1/4" stainless steel tubing. |
| SV |
Supplied with stainless steel, 37° flared tubing connectors, along with stainless steel check valves on all output ports. Used with 1/4" stainless steel tubing. |
Ordering Examples:
If you ordered a 9800-3060MBS, you would receive a six port Flow Finder Manifold with a medium flow range (input of 47.5 SCFH and an output of 9.5 SCFH) and nickel-plated brass standard tubing connectors.
If you ordered 9800-3060HSV, you would receive a six port Flow Finder Manifold with a high flow range (input of 95.0 SCFH and an output of 19.0 SCFH) stainless steel, 37 degree flared tubing connectors and stainless steel check valves on all outputs.
Flow Bank Part No. 9800-3076
There are some distinct advantages of dual feed air pressure systems over single feed systems. For one thing, they
provide air to the cables from two directions. If a cable leak develops, the dual air sources supply pressure protection to the cable on both sides of the leak. The converging air flow reduces the area of risk where a potential cable failure can occur.
Single feed systems do not offer this degree of protection. The major weakness of a single feed system is the fact that cables are fed from one source only, from one direction. When a cable leak occurs, pressure drops at the leak and levels off from the leak to the cable endpoint. Depending upon the severity and location of the leak, a large segment of the cable could be left totally unprotected.
Single feed systems can also be expensive to build and maintain. Because they require pressure transducers on all cables at prescribed distances, equipment installation and maintenance costs can add up quickly. And despite these inevitable costs, you're still left with a single feed system. One with improved monitoring, at best, but with no real improvement in cable protection.
Until now, there has been no inexpensive way to provide dual feed protection to a single feed system. You'd either have to add air pipe, portable air sources, or live with inadequate cable protection.
Protection You Can Bank On
The Flow Bank™ (Part No. 3076) from System Studies Incorporated changes all that. It's a simple air distribution mechanism that joins cables together pneumatically to increase cable protection. The Flow Bank makes it possible for cables with adequate or high pressure to provide additional air to cables that have low pressure. Designed to be placed every 1,000 to 1,500 meters in a single feed system, a cable route with multiple Flow Banks becomes an effective dual feed system.
What's more, monitoring requirements are greatly simplified when using the Flow Bank. Instead of installing pressure transducers on individual cables along the route, one High Resolution Pressure Transducer™ at each Flow Bank will do the job. This transducer monitors the combined cable pressures created by the Flow Bank. Dispatching and alarming is then based on the analysis and comparison of the pressure transducer readings from adjacent Flow Banks.
Here's How it Works
The Flow Bank functions like a flow routing manifold, allowing air to flow freely from one or more cables into another. Cables are pneumatically connected to the Flow Bank via (1 cm) to inch (0.6 cm) plastic tubing. If a leak develops in one of the cables, those with higher pressure will flow through the Flow Bank and into the cable with the lowest pressure. There are no check valves in the Flow Bank, nor plastic tubing, to impede the flow of air in either direction.
Flow Bank (continued)
Each of the in/out ports in the Flow Bank is equipped with a specially designed Flow Finder™ that provides accurate flow rates when used with the Flow Direction Gauge™ (Part No. 3105). This flow gauge reads from 0.0 to 0.95 Standard Cubic Feet per Hour (SCFH), or 0 to 27 Liters per Hour (LPH), with an extended reading capability of up to 2.5 SCFH (70 LPH). The gauge face indicates which direction the air is flowing—either toward the Flow Bank or toward the cable.
As a Leak Locating Tool
When a leak occurs in a cable, it will cause the pressure in the Flow Bank to drop. This drop will be indicated by the High Resolution Pressure Transducer installed at the Flow Bank. The
leak also creates a flow increase. When measured with the Flow Direction Gauge, the cable with the leak will show an increase in flow toward the cable. The amount of flow measured depends upon the size of the leak, the pneumatic resistance of the cable, and the distance between the leak and the Flow Bank. Using this information, a technician can then perform the necessary Zero Leak Projections and Air Flow Calculations to locate the leak.
A Protected Investment
The Flow Bank also provides protection to the cables should one of the pneumatic tubes be accidentally cut. And as a result of calibrated restrictions built-in to the Flow Bank, maximum flow to a cable with 5 PSI (.73 kiloPascals) pressure is limited to 4 SCFH (113 LPH). This prevents the leaking cable from draining or depleting the pressure in the adjoining cables.
The cable pressure is further safeguarded during the flow reading process. Using the Flow Direction Gauge, air flows are measured directly without having to temporarily turn off the air and reroute it through a portable flow rater. The cable pressure will never be accidentally left off.
Model Specifications
The Flow Bank (Part No. 3076) is designed for utility hole installation. One bank will feed up to five cables. Multiple banks can be grouped together to feed as many cables as necessary at one location.
| Mechanical: |
The Flow Bank housing is constructed of nickel-plated brass. Other metal parts are either stainless steel or nickel-plated brass. The Flow Bank is 3 inches (7.6 cm) high, 2 (6.4 cm) inches deep and 5 inches (13.3 cm) across. Mounting holes are centered and placed 3 inches (7.6 cm) apart. The gasket is made of durable silicone rubber. |
| Operating Range: |
The System Studies Flow Bank has been thoroughly tested and confirmed for reliable operation within the following perimeters:
– Operating Temperature Range: -40°F to +220°F
– Maximum Pressure: 20 PSI (3 kPa) above operating temperature range |
| Shipping Weight: |
5 pounds (2.3 kg)
|
| PART NUMBER |
FITTING* |
| 9800-3076 |
BS, BT |
| Please note that a fitting type must be specified for each Flow Bank when ordering. Unlike Flow Finder Manifolds, there are no flow range variations offered with this product. |
| * Fitting: |
| These fittings pertain to the pneumatic connections on the incoming and outgoing ports of the Flow Bank. |
| BS |
Supplied with nickel-plated brass, standard tubing connectors. Used with 3/8" plastic tubing. |
| BT |
Supplied with nickel-plated brass, standard tubing connectors. Used with 1/4" plastic tubing. |
Ordering Examples:
If you ordered a 9800-3076-BT, for example, you would receive a Flow Bank equipped with 1/4 inch tube to 1/4 inch NPT-M fittings on each of the five flow ports.
A 9800-3076-BS specifies a Flow Bank that includes 3/8 inch nickel-plated brass tubing connectors on each of the five flow ports.
Manifold Monitoring Assembly Part No. 9800-3061
The Manifold Monitoring Assembly™ designed by System Studies Incorporated is a serious leak locating and maintenance tool. Incorporating the latest flow measurement technology, it represents a major breakthrough in air flow distribution and monitoring.
There are four models of the original Manifold Monitoring Assembly (newer versions are also available for Flow Finder Manifolds™ used with resistive transducers or curved brackets). Each of the original assemblies consists of a stainless steel mounting bracket with either a High Resolution Flow Transducer™ or High Resolution Dual Transducer™ and either one or two Flow Finder Manifolds™.
What sets this manifold assembly aside from conventional flow-monitored air pipe manifolds is the accuracy and versatility of the Flow Finder System of Measurement, and the unique monitoring characteristics of the High Resolution Transducers. Utilizing built-in Flow Finders for both manual and remote air flow measurements, the Manifold Monitoring Assembly offers extended reading ranges and unsurpassed measurement accuracy. And, when ordered with a Dual Transducer, the assembly provides you with a means of monitoring air pipe delivery pressure at the manifold location.
Monitoring Versatility
The Manifold Monitoring Assembly's Flow Finder Manifold(s) is available in a variety of Flow Finder™ ranges to meet the needs of your system. For example, in metropolitan areas where high flow rates are common, the manifold's input port can be equipped with a 0-95 Standard Cubic Feet per Hour (SCFH) Flow Finder (to measure input from the air pipe). Each output port can be equipped with a 0-19 SCFH Flow Finder to measure the flow to the cable.
Flow Finder Manifolds can be ordered in four Flow Finder ranges: 0-9.5, 0-19, 0-47.5 and 0-95 SCFH. You select the input and output flow ranges that best meet your system needs (see accompanying ordering chart). Each of the Flow Finders provides twice the indicated flow value when read by the transducer or manually with a Flow Gauge™.
The High Resolution Flow or Dual Transducer is pre-connected to the input Sampler Valves on the Flow Finder Manifold to provide accurate flow readings from 0-95 SCFH, plus extended two times reading capability. The Dual Transducer also provides pressure readings from 0-30 PSI with a reading resolution down to 0.1 Pounds per Square Inch (PSI). The ability to read up to 190 SCFH and 30 PSI respectively is especially important during emergency analysis situations.
What this versatility equates to is more control over pressure and flow alarming and significant advances in both reactive and proactive dispatching.
Simplified Installation
The Manifold Monitoring Assembly is supplied with the High Resolution Transducer and Flow Finder Manifold(s) mounted to a stainless steel bracket. The bracket contains several mounting holes at each end to facilitate the installation process. Because components are pre-assembled and secured to the bracket, the installation process is relatively simple. It consists of the following procedures:
Manifold Monitoring Assembly (continued)
- Mounting the bracket to an access hole wall
- Hooking up the air pipe or tubing from the air pipe to the input port on the Flow Finder Manifold
- Installing pressure tubing from each cable to the Flow Finder Manifold's output ports
- Wiring conductors from the High Resolution Transducer to the assigned field device pairs (the High Resolution Transducer is equipped with an internal splicing cavity with pre-wired primary and spare pairs) Turning on the air flow ports on the Flow Finder Manifold to supply air feed to the cables
Manual Flow Measurements–Fast and Easy
As a serious leak locating tool, the Flow Finder Manifold was designed to make manual flow measurement simple and easy. Flow readings are taken with a Flow Gauge at any of the manifold's built-in Flow Finder Sampler Valves. Unlike conventional air pipe manifolds that must be read by re-routing air through a portable flow rater, the Flow Gauge is able to sense the subtle pressure differential created by the Flow Finder's internal, calibrated orifice and convert it into an accurate air flow reading. There's no shutting off flow to the cable, no re-routing of air flow, and no need to worry about turning individual flow chambers back on after taking a reading. With the Flow Finder Manifold you simply attach the Flow Gauge sampler, select the appropriate color coded scale on the gauge face, and read the flow rate. If a gauge needle is pegged (off scale), just depress the "times two" button on the Flow Gauge, read the adjusted value, and multiply by 2. Extended and accurate flow measurements are possible with the push of a button.
Monitoring Advantages
The Manifold Monitoring Assembly is an ideal field component for metropolitan areas. If flow increases are monitored only at the central office pipe alarm panels, subtle fluctuations in air dryer output can result in an excessive number of nuisance alarms.
With flow transducers installed in the field on the Manifold Monitoring Assemblies, the readings generated at these locations will be less affected by air dryer fluctuations and more representative of true field conditions. As a result, the flow transducers will accurately alarm for major cable leaks.
The High Resolution Dual Transducer's pressure sensor not only provides an extended monitoring range, but it enables you to set alarm levels to 0.1 PSI where the high air consumption characteristics of large metropolitan areas make accurate delivery pressure monitoring crucial. By installing the Manifold Monitoring Assembly with a High Resolution Dual Transducer, you'll be able to fine-tune alarm levels and respond more quickly and decisively to system threatening conditions.
Ordering Specifications
The Manifold Monitoring Assembly is available in a number of configurations. Models 3061 and 3064 have one Flow Finder Manifold which feeds a total of five cables. Models 3062 and 3065 are equipped with two manifolds for a maximum of ten cables. These manifolds can be ordered in a variety of ranges to suit your
Manifold Monitoring Assembly (continued)
specific needs. The Manifold Monitoring Assemblies are further distinguished by the type of electrical connection fitting installed on the transducer. Models 3061 and 3062 are supplied with nickel-plated brass conductor tubing connectors; models 3064 and 3065 are equipped with 37° stainless steel conductor tubing connectors. Either model can be ordered with either a High Resolution Flow or Dual (pressure and flow) Transducer.
In addition, several models of the Manifold Monitoring Assembly are available with a Pair Saver. This internally installed device makes it possible to connect a dual transducer to a single conductor pair.
The ordering chart below describes the variety of product numbering, range, fitting and transducer type possibilities.
Material
The assembly bracket material is .062 stainless steel. The Flow Finder Manifold is nickel-plated brass with a silicone rubber gasket. Fittings are nickel, plated brass or stainless steel (depending upon model). High Resolution Flow or Dual Transducer is also constructed of nickel-plated brass with a mineral filled, nylon center barrier plate. Pneumatic tube between transducer and manifold is stainless steel, 1/8 inch (0.3 cm) O.D and 1/16 inch (0.16 cm) I.D. Wall thickness is approximately .035 inch (0.096 cm).
Ordering Information
| PART NUMBER |
RANGE* |
FITTING** |
TD TYPE*** |
9800-3061 ONE MANIFOLD
(transducer comes with 3/8" nickel-plated brass conductor tubing connector) |
L, M, H, C |
BS, BT, BV |
1, 2, 9, U, U2, 2P |
9800-3064 ONE MANIFOLD
(transducer comes with 37° stainless steel conductor tubing connector) |
L, M, H, C |
SS, SV |
1, 2, 9, 2P |
9800-3062 TWO MANIFOLDS
(transducer comes with 3/8" nickel-plated brass conductor tubing connector) |
L, M, H, C |
BS, BT, BV |
1, 2, 9, U, U2, 2P |
9800-3065 TWO MANIFOLDS
(transducer comes with 3/8" nickel-plated brass conductor tubing connector) |
L, M, H, C |
BS, BT, BV |
1, 2, 9, U, U2, 2P |
9802-3062 TWO MANIFOLDS
(manifold and transducer installed on curved bracket; transducer comes with 3/8" nickel-plated brass conductor tubing connector) |
L, M, H, C |
BS, BT, BV |
1, 2, 9, U, U2, 2P |
| Please note that a part number, range, fitting and transducer type must be specified for each Flow Finder Manifold Assembly when ordering. next page for more ordering information. |
Manifold Monitoring Assembly (continued)
| *Flow Finder Ranges: |
| L |
Low: Input = 19.0 SCFH, Output = 9.5 SCFH |
| M |
Medium: Input = 47.5 SCFH, Output = 9.5 SCFH |
| H |
High: Input = 95.0 SCFH, Output = 19.0 SCFH |
| C |
Custom: Multiple output ranges to meet your specifications (please contact System Studies Incorporated) |
| |
| ** Fittings: |
| BS |
Manifold supplied with nickel-plated brass standard tubing connectors. For use with 3/8" plastic tubing. |
| BT |
Manifold(s) supplied with nickel-plated brass tubing connectors. For use with 1/4" plastic tubing. |
| BV |
Manifold supplied with nickel-plated brass standard tubing connectors, along with nickel-plated brass check valves on all outputs. For use with 3/8" plastic tubing. |
| SS |
Manifold supplied with stainless steel, 37° flared tubing connectors. For use with 1/4" stainless steel braided tubing. |
| SV |
Manifold supplied with stainless steel, 37° flared tubing connectors, along with nickel-plated brass check valves on all outputs. For use with 1/4" stainless steel braided tubing. |
| |
| *** Transducer Type: |
| 1 |
High Resolution Flow Transducer |
2 |
High Resolution Dual Transducer |
| 9 |
No transducer supplied |
U |
Resistive Flow Transducer |
| 2P |
High Resolution Dual Transducer (w/Selector
Pair Saver) |
U2 |
Resistive Flow & Pressure Transducer |
| |
| Ordering Example: |
| If you ordered Part Number 3065-H-SV-2, for example, you would receive an assembly with two Flow Finder Manifolds with a high flow range (input of 95.0 SCFH and outputs of 19.0 SCFH), 37° stainless steel, flared tubing connector fittings with nickel-plated check valves, and a High Resolution Dual Transducer with a 37° stainless steel braided tubing connector fitting. |
| |
Utility Hole Temperature Transducer Part No. 9800-4440
The presence of steam in the outside plant underground environment causes a number of problems for telephone operating companies. A leaking steam pipe poses a major safety hazard for anyone having to work nearby, delaying scheduled maintenance and/or splicing activity. Steam can also contribute to the corrosion of utility hole splice closures and important air pressure equipment, such as air pipe manifolds and transducers. But most importantly, steam can penetrate a cable's protective sheath and, under certain circumstances, cause high resistance pair trouble in the cable. If not corrected in time, the trouble spreads and a potential loss of service can occur.
To provide early warning of a developing steam problem in the underground, System Studies has designed a Utility Hole Temperature Transducer (Part No. 9800-4440) which reads up to 212° Fahrenheit. The device, which can be directly mounted to a utility hole wall, is programmed to alarm at 110° F and clear when the temperature drops back down to 90° F.
Here's How it Works
Similar in appearance to the System Studies High Resolution Pressure Transducer™, the Utility Hole Temperature Transducer contains a small thermistor sensor that reads electrical resistance in the range of 2069 ohms to 885K ohms. As the temperature in the utility hole changes, the thermistor device senses the change and produces a resistive output. This value is read by a 289H LSS™ monitor and converted to temperature reading by the PressureMAP™ software.
The transducer housing is pressurized to 10 Pounds per Square Inch (PSI) in the factory and sealed to withstand harsh utility hole environmental conditions. A single pair of conductors provides the electrical connection to the assigned device pair, which is wired to a 289H LSS monitor in the central office. The 289H LSS supplies voltage to the sensor in the range of 10 to 48 volts and takes an electrical resistance reading on the pair.
The Utility Hole Temperature Transducer is programmed into the PressureMAP database as a "TE" device type. When PressureMAP scans the 289H LSS for readings, it converts the resistance value supplied by the "TE" device to the equivalent temperature reading. A four star alarm is generated and distributed to the assigned Alarm Center(s) for any temperature reading above 110° F.
Physical Description
The temperature sensor is a small, cylindrical device that is mounted inside the main body of a System Studies pressure transducer. The inlet ports for the housing's pneumatic connections are both sealed, preventing moisture or contaminants from enter the housing. A single pressure testing valve is supplied on the top of the transducer to check the device's internal, static pressure, if necessary.
The sensor's single conductor pair is fed through a 37° flared stainless steel fitting (designed for use with stainless steel, braided tubing). This pair, which is not polarity sensitive, is spliced to an assigned device pair. The transducer is supplied with a mounting bracket and installation assembly kit.
Utility Hole Temperature Transducer (continued)
| Electrical: |
The Utility Hole Temperature Transducer's internal sensor outputs electrical resistance readings in the range of 2069 ohms to 884.6K ohms. It operates on a single dedicated conductor pair (26 gauge, standard, blue/white). The device is not polarity sensitive. Measurement voltage: 10 to 48 volts DC. |
| Construction: |
Nickel-plated brass, mineral filled nylon center barrier plate. Physical Dimensions 2.5 inches x 2.625 inches (excluding pressure valve and conductor fitting) |
| Temperature Range Measurement Output: |
40 F to 212 F |
| PressureMAP Device Type: |
TE |
| Monitor Compatibility: |
289H Loop Surveillance System (LSS)™. |
Flow Gauge Part No. 9800-3100
The Flow Gauge™ is an air flow measuring device that is used in conjunction with Flow Finders™ and Flow Finder Manifolds™. The Flow Gauge has a "quick-connect" sampler assembly which connects to the two sampler valves on the Flow Finder. Designed so that it cannot be attached backwards, the Flow Gauge makes a positive connection to the Flow Finder sampler valves when tightened with a thumb screw.
How it Works
The Flow Gauge is a manual reading devices that operates on air pressure alone to produce an air flow measurement. No batteries
are required. By sampling pressure readings from each side of the Flow Finder's calibrated orifice, the Flow Gauge measures the difference in air pressure and converts this value to an air flow rate. As the pressure differential at the Flow Finder of Flow Finder Manifold changes, an indicator needle inside the Flow Gauge moves either to the left or right.
Located on the face of the Flow Gauge are four color-coded scales which correspond to the color-coding on the Flow Finders. A reading is made by 1) matching the color of the Flow Finder (representing its flow range) with the corresponding scale color on the Flow Gauge, and 2) reading the flow value indicated by the position of the needle.
Over-Range Readings
The Flow Gauge is equipped with a times-two button that allows over range ("pegged") flow readings to be taken. If the Flow Finder or Flow Finder Manifold port being read results in the gauge needle reaching the maximum value on the scale (all the way to the right), then the reading exceeds the designated range of the Flow Finder. In this case, the times-two button may be activated to reduce the actual reading by one half, where it can be measured on the scale and doubled to provide an accurate reading. For example, if, when using this button, the air flow reads 12 SCFH, then the actual air flow rate would be 24 SCFH. Reverse flow rates can also be detected with the gauge. In the case of a reverse air flow, the needle on the Flow Gauge will move to the left of the zero marker on the Flow Gauge scale.
Please note that the Flow Gauge is slightly "position sensitive." For maximum accuracy, it must be read from either a vertical or a horizontal position. Once the Flow Gauge is positioned for use, the indicator needle can be "zeroed" for an extra degree of accuracy.
Specifications
| Description: |
The Flow Gauge housing is constructed of metal alloy. It includes a plastic gauge face cover and a protective rubber case. The case is supplied with an adjustable carrying strap. The two-port sampler fixture includes six feet of twin hose for connection to the Flow Finder being monitored.
The twin hose is specially molded from a fluid resistant thermoplastic rubber called Santoprene®. This material gives maximum protection from temperature extremes and from petroleum products commonly found in manholes. The hose retains its flexibility under exposure to cold temperatures.
|
Flow Gauge (continued)
Specifications
| Reading Position: |
For maximum accuracy, the Flow Gauge should be used in either a vertical or horizontal position. The rubber case is designed to facilitate the proper reading position. In taking precise measurements, it is recommended that the "zero adjustment" screw on the face of the Flow Gauge be used to set the zero reference prior to connecting the sampler. |
| Calibration: |
The Flow Gauge is calibrated for maximum accuracy at a pipe pressure of 9.0 PSI. When used at substantially lower pressures, the Flow Gauge will produce less accurate readings. Times Two Button Located at the top of the Flow Gauge, the "times two" button allows for the reading of over-range or "pegged" flows. When pressed, the button reduces the flow reading in half, which allows for an accurate measurement of flow. |
| Reverse Flow Indication: |
A reverse flow is detected when the alignment needle on the Flow Gauge scale moves to the left of the zero marker. |
| Net Weight: |
2.75 pounds |
| Shipping Weight: |
3.75 pounds |
| |
Flow Direction Gauge Part No. 9800-3105
With the growing industry advancements in the protection of cable in single feed systems, the need for accurate flow measurements—as well as knowing which way the flow is going—has become increasingly important.
Leak locating in the Flow Bank System™ is based upon flow measurements and flow direction. The Flow Direction Gauge™ (Part No. 3105) makes this task easy.
How it Works
The Flow Bank™ is made up of five cable ports and a flow
exchange chamber that allows air to flow from one port to another. Each port contains a calibrated orifice and a pressure testing valve.
Air flows both into and out of the Flow Bank toward the cable(s) with the lowest pressure. As flow increases (either in or out of the cable) the pressure differential over the orifice increases. The greater the pressure differential, the greater the flow.
The Flow Direction Gauge increases this pressure differential and converts it to an air flow reading in Standard Cubic Feet per Hour (SCFH) or Liters per Hour (LPH). The Flow Direction Gauge is "zero central" so the technician can tell whether the flow is coming from the cable being measured or going into the cable.
Because of the unique design of the Flow Direction Gauge, readings can be taken without having to shut off air supply to a cable and reroute the flow, as is the case when taking readings with a portable flow rater. Readings are taken by simply connecting the gauge's snap-on flow sampler to the pressure testing valve on the flow exchange chamber and on each cable port. This simplifies the process of taking flow readings and eliminates the possibility of accidentally leaving the flow to a cable turned off.
Flow Measurement Range
The flow range reading capability of the Flow Direction Gauge covers the typical flows that will be found in a Flow Bank System. The gauge contains two scales. The top (low flow) scale reads from 0–1.0 SCFH (0–28 LPH) and the bottom (high flow) scale reads from 0–2.5 SCFH (0–70 LPH). The extended range is accessed by simply pressing the button on top of the gauge.
Application
The Flow Direction Gauge is designed to be used exclusively with the Flow Bank. It uses a quick connect, snap on flow sampler to measure the differential pressure across the calibrated orifice. The Flow Direction Gauge converts the pressure differential to a flow reading. Powered by pneumatics, the Flow Direction Gauge requires no batteries, so flow readings will always be accurate and reliable.
Flow Direction Gauge (continued)
Specifications
| Description: |
The gauge, which is 4 inches (10 cm) in diameter, is housed in a protective rubber case with an adjustable carrying strap. The two-port sampler includes a generous 6 feet (183 cm) of twin hose for connection to a Flow Bank at any location. The twin hose is specially
molded from a fluid-resistant, thermoplastic rubber called Santoprene®. This material gives maximum protection from the harmful effects of petroleum products commonly found in utility holes. The hose also retains its flexibility under exposure to extreme temperatures. |
| Reading Position: |
For maximum accuracy, the Flow Direction Gauge should be used in either a vertical or horizontal position. For taking precise measurements, it is recommended that the "zero adjustment" screw on the face of the Flow Direction Gauge be used to set the zero reference prior to connecting the sampler fittings to the Flow Bank sampler valves. |
| Extended Range: |
The large button located at the top of the Flow Direction Gauge is the extended range button, which allows for over-range readings. |
| Net Weight: |
2.75 lbs. (1.25 kgs). |
| Shipping Weight: |
3.75 lbs. (1.70 kgs) |
| |
Digital Pressure Gauge Part Nos. 9800-3123 / 9800-3135
One of the more recent additions to the System Studies line of cable pressurization leak locating tools is the compact and rugged Digital Pressure Gauge. Two versions of the gauge are available. Part No. 9800-3123 provides readings from 0–30 psi; Part No. 9800-3135 reads from 0צ100 psi. At approximately 18 ounces (0.51 kg) in weight and 3.375 inches (8.57 cm) in diameter, the Digital Pressure Gauge fits easily into most tool bags or compartments. When the air chuck is connected to the gauge's tank valve, the entire unit can be hung on a hook for even more convenient storage.
A thick rubber boot provides impact protection for the extruded aluminum housing and makes it easy to grip and hold the gauge. Adding to its overall durability is a rubber O-Ring which seals the gauge face and housing—preventing moisture from damaging the unit, even if it is inadvertently dropped in water.
Power to the Digital Pressure Gauge is supplied by two standard AAA batteries. An auto shut-off capability helps to conserve cell power and contribute to the exceptionally long battery life.
Taking pressure readings with the Digital Pressure Gauge is much easier than with the old-style C Pressure Gauge. It has a four digit digital display that reduces the potential for errors in readings by eliminating the parallax problems prevalent with analog gauges. Reading accuracy is +/- 0.50% full scale. To facilitate use in a variety of applications, the Digital Pressure Gauge provides 12 measurement output units, including psi, kPA, mbar, in. Hg, etc.
Features
A four button key pad provides easy access to features, which include display backlight activation, peak and valley reading recall, auto zeroing, and measurement unit selection.
Please refer to the instructions on the back side of this document for a simplified explanation of button operations.
The gauge is supplied with a 20 inch (50.8 cm) length of tubing and a standard air pressure chuck valve for quick connection to standard chuck valves. The air chuck can be attached to the rubber boot tank valve for convenience and easier storage.
Maintenance
A "LOW BAT" descriptor indication will appear on the display when batteries need to be replaced. To replace the batteries first remove the pressure tube fitting at the bottom of the gauge and slip the rubber boot over the gauge from the bottom upward. (The tank valve is attached to the protective boot.)
Once the rubber boot has been removed, loosen the three screws which hold the backplate to the housing and lift the backplate off by hand. Replace the batteries, mindful of the proper polarity. To reassemble ensure that the O-Ring seats into the housing evenly, and press along its circumference until it is seated completed. Replace the backplate and screws, making sure that the screws are secured. Slip the rubber boot back over the gauge and reconnect the tubing. (Note: it is advisable to replace the Teflon tape before inserting the tube fitting.)
Digital Pressure Gauge (continued)
Specifications
| Protective Boot: |
Black 4mm rubber, aluminum plate with threaded nickel-plated brass tank valve |
| Pressure Range: |
Part No. 9800-3123: 0 to 30 psi; over range protection to 60 psi
Part No. 9800-3135: 0 to 100 psi; over range protection to 200 psi |
| Temperature Limits: |
0 to 130°F (-18 to 55°C) |
| Weight: |
8.84 oz (275 g); 18.23 oz (517 g) including boot, tubing and chuck |
| Display: |
4 digit .425 in (1.08 cm) High x .234 in (.59 cm) Wide digits |
| Output Engineering Units: |
psi, in Hg, oz in², in w.c., ft w.c., mm Hg, mm w.c., kg/cm², kPa, mbar, bar, cm w.c. |
| Power Requirements: |
Two AAA batteries |
| Battery Life: |
2000 hours typical; low battery indicator |
| Auto Shut-off: |
60 minute auto shut-off; auto shut-off may be disengaged; 2 minute auto shut-off for backlight |
| |
Humidity/Temperature Meter Part No. 9800-3140
System Studies' Humidity/Temperature Meter (P/N 9800-3140) is the ideal instrument for determining the amount of relative humidity in a central office or underground cable environment. Designed for portability and ease of use, the meter provides simultaneous relative humidity and temperature data. This information is particularly important in areas with high sustained temperatures or where steam leaks in underground conduit are a common occurrence.
The combined effects of high cable temperature, cable humidity, utility hole vapor pressure, and rapid cooling of a cable can result in the development of moisture pockets within a cable. By monitoring electrical resistance data, performing specific fault locating techniques, and taking manual temperature and humidity readings, it is possible not only to identify cables where moisture is developing, but also determine the approximate location of the
wet sections. It most situations, it is possible to identify potential cable trouble before it becomes service affecting.
The Humidity/Temperature Meter is the ideal tool to use in any application where temperature and humidity readings are required. It reads relative humidity in the range of 5 to 95% with a resolution to 0.1% relative humidity. Temperatures in the range of 14 to 122°F can be recorded with +/- 1°F accuracy.
To simplify the process of reading cable humidity and temperature, the meter is equipped with 18 inches of tubing and a threaded valve stem. These items make it easy to connect the meter to a splice case and obtain a precise measurement. Reading response is under two minutes, and LCD output is easily visible on the meter's display even in relatively low light.
Specifications
| Relative Humidity: |
| Range: |
5 to 95% |
| Resolution: |
0.1% RH Accuracy, at 77°F (25°C): +/-4% RH from 10 to 90% RH |
| Sensor: |
Electronic capacitance polymer film |
| Temperature: |
| Range: |
14° to 122° F (-10° to 50° C) |
| Resolution: |
0.1°F (0.1°C) |
| Accuracy: |
+/- 1°F (+/- 1°C) |
| Sensor: |
Thermister |
|
Humidity/Temperature Meter (continued)
Specifications
| General: |
| Response Time: |
80 seconds |
| Display: |
Dual LCD: 3-digit, 0.38 (0.97) in high for RH; 3-digit, 0.25 in (0.64 cm) high for temperature |
| Operating Ambient: |
14° to 122°F (-10° to 50°C) |
| Power: |
Two AAA batteries (included) |
| Battery Life: |
500 Hours |
| Dimensions: |
6.75 in (17.1 cm) L x 1.94 in (4.9 cm) W x 0.75 in (01.9 cm) D |
| Shipping Weight: |
0.75 lbs (0.34 kg) |
| |
Pipe Panels Part No. 9800-3083, 9800-3080
Fluctuations in delivery pressure at typical central office pipe panels often result in the occurrence of nuisance alarms. The majority of these types of alarms are caused by alternating central office dryers or dryer output cycles.
To remedy the problem of nuisance alarms, and offer stabilized delivery pressure, System Studies has developed a Single Pipe Panel (P/N 9800-3083) and a Dual Pipe Panel (P/N 9800-3080). These panels are components of
the Central Office Air Distribution and Monitoring Assembly™. With this rack assembly in place, your pressurization system can benefit from stabilized delivery pressure. And technicians and dispatchers can benefit from the most accurate pressure and flow measurements offered by any central office equipment available.
Optimum Layout & Design
The assembly takes advantage of the latest flow measurement technology developed by System Studies Incorporated. Providing unique controls for the measurement and monitoring of central office air distribution, this panel assembly represents a functional breakthrough in the evolution of central office panels.
One of the most important parts of the assembly, the System Studies Pipe Panels offer the stabilized delivery pressure you need. Carrying out the initial design objective of simplicity and performance, our panels exceed the capabilities of conventional pipe panels without any extraneous hardware. Integrating a high quality pressure regulator for each pipe connected to the panel helps to provide stable and consistent delivery pressures. These regulators also facilitate leak locating by eliminating fluctuating panel flow rates. Along with shutoff valves and high quality pressure regulators, the pipe panel contains a Flow Finder™ for each installed air pipe. Flow Finders are mounted on the back of the panel but are readable from the front via the flush-mounted High Resolution Flow or Dual Transducer™. The Flow Finders measure the flow rates into the associated air pipes.
Components
Each pipe panel is equipped with the following components:
- One or more high quality pressure regulators, one for each air pipe. These devices accurately regulate high side air dryer output pressure down to 10 PSI.
- One or more Flow Finders. Depending upon the total number of sheath miles being fed by the air pipe, Flow Finders can be ordered in either 0–47.5 or 0–95 Standard Cubic Feet per Hour (SCFH) ranges.
- One High Resolution Flow or Dual Transducer per pipe. Each provides remote monitoring capabilities for flow rates into the air pipe as well as delivery pressure output.
- Shutoff valves—one for each pipe.
The majority of the assembly components have been designed and manufactured by System Studies Incorporated at our manufacturing facility. As part of the construction process, each panel undergoes a critical design review, and all system components are tested for proper operation, pneumatic integrity and strict adherence to design objectives prior to installation.
Pipe Panels (continued)
With the System Studies Pipe Panel in place, along with the Central Office Air Distribution and Monitoring Assembly, you will receive stabilized delivery pressure that is unparalleled among pipe panels. And the occurrence of nuisance alarms will be virtually nonexistent. You'll be amazed at the accuracy and reliability of pressure and flow readings found with this rack assembly monitoring your central office.
Each pipe panel in the Central Office Air Distribution and Monitoring Assembly measures 7 inches high, by 23 inches wide and 5 inches in depth. The maximum shipping weight per panel is 18 pounds. To place an order, or to obtain further information, contact the System Studies Sales Department. Please specify the appropriate product number when ordering, or call System Studies Incorporated.
| Pipe Panel Variations: |
| Single Pipe Panel |
Part No. 9800-3083 |
(air delivery and monitoring for one 1/2" air pipe) |
| Dual Pipe Panel |
Part No. 9800-3080 |
(separate air delivery and monitoring for two 1/2" air pipes) |
| |
Distribution Panels Part No. 9800-3082, 9800-3282
Distribution panels are a part of every pressurization system. They supply pressurized air to cables in the vault and offer a means to measure this air—so you can be sure that the cables receive adequate delivery pressure, and you are able to detect changes in air consumption. But conventional distribution panels do not always offer the measurement accuracy and delivery pressure stability that you need. With conventional distribution panels, the built-in flow raters make it difficult—if not impossible—to obtain accurate
flow readings. And if a flow rater is pegged (indicating 10 SCFH), it is necessary to use a portable flow rater to measure the flow rate. However, in order to do so, you have to shut off air flow to the cable at the panel and re-route it through the portable flow rater. This leads to one serious problem and the possibility of another.
Air that is re-routed through pressure testing valves, air chucks and tubing becomes restricted—making it impossible to obtain an accurate flow measurement. There is also a chance that after the reading has been taken, the technician may forget to turn the flow back on to the cable, which could result in the cable going flat (0.0 PSI) in the first pneumatic section.
Neither of these problems is an issue with System Studies' Distribution Panel (Part No. 3082). Unique in its design, the Distribution (meter) Panel supplied with the Central Office Air Distribution and Monitoring Assembly™ offers extremely accurate manual reading capabilities and control of delivery pressures.
Optimum Design
The Distribution Panel is equipped with two five-port Flow Finder Manifolds™. The Flow Finder Manifolds are flush mounted with their Flow Finder™ sampler valves easily accessible for quick and accurate flow measurements. Readings are taken using the Flow Sampler™ and Flow Gauge™ provided on the rack's Instrument Panel.
Each Distribution Panel is equipped with a pressure regulator for smooth air feed to the system, a High Resolution Dual Transducer™ to measure both delivery pressure and total flow, and a shutoff valve for cutting off air pressure delivery to the pipe route when called for.
Components
Each Distribution Panel can feed a maximum of ten cables. It is supplied with the equipment listed below:
- A high quality pressure regulator to eliminate the pulsing caused by fluctuations in dryer cycling. Other distribution panels can be ordered with or without regulators. If they are ordered without regulators, they typically rely on the regulators installed on the pipe alarm panels. By having a pressure regulator installed on the distribution panel itself, it is possible to simplify pneumatic plumbing to the panel and ensure a consistent 10 PSI of pressure to the cables in the vault.
- A High Resolution Dual Transducer flush-mounted into the face of the panel. This transducer is pneumatically connected to a 0–47.5 SCFH Flow Finder that is installed on the incoming pressure tubing from the rack assembly's central office manifold. The Flow Finder used in this connection is available in a variety of ranges: 0–9.5, 0–19, 0–47.5, or 0– 95 SCFH.
Distribution Panels (continued)
- Flow Finder Manifolds (five port models). These two manifolds are equipped with a total of ten Flow Finders in the range you select.
- A shutoff valve.
With the System Studies Distribution Panel in place, you can be assured that your pressurization system will receive stable delivery pressure. And never again will you have to shut off air flow to a cable in order to obtain a reading. Most importantly, the Distribution Panel will enable you to take individual cable flow readings with unparalleled ease and accuracy.
Each panel in the Central Office Air Distribution and Monitoring Assembly measures 7 inches high, by 23 inches wide and 5 inches in depth. The maximum shipping weight per panel is 10 pounds. To place an order, or to obtain further information, contact the System Studies Sales Department. Please specify the product number when ordering.
Legacy Distribution Panel
To comply with customer requests for a panel with visual flow raters, we now offer a Legacy Distribution Panel (shown below). This model contains the same high quality pressure regulator, shut off valve and air source monitoring as our original distribution panel, but the Flow Finder Manifolds have been replaced by a ten-bank flow rater assembly. The flow raters provide the visual flow consumption reference many of our customers desire; however, they sacrifice some overall reading accuracy. For example, if a flow rater is pegged (polystyrene balls at top of scale), it is necessary to use a portable flow rater to measure the flow rate. In order to do so, you have to shut off air flow to the cable at the panel and re-route the air through the portable flow rater. This makes it impossible to obtain accurate flow readings because the volume of air being measured is restricted as it flows through the tool's air chucks and tubing.
| |
 |
Part No. 9800-3282 |
| |
Both types of System Studies Distribution Panels are available in a variety of model types to serve your particular needs. There are multiple Flow Finder ranges to choose from, and several fitting and transducer combinations that can be specified. The ordering chart on the next page provides information on these variations.
| PART NUMBER |
RANGE* |
FITTING** |
TD TYPES*** |
9800-3082 — DISTRIBUTION PANEL
(Flow Finder Model) |
L, M, H, C |
BS, BV, SS, SV, BT |
1, 2, 9, U |
9800-3282 — DISTRIBUTION PANEL
(Legacy Model) |
L, M, H
*denotes input only |
BS, BV, SS, SV, BT |
1, 2, 9, U |
| Please note that a part number, range, fitting and transducer type must be specified for each Distribution Panel when ordering. |
| * Flow Finger Ranges: |
| L |
Input = 0–19 SCFH, Output = 0–9.5 SCFH |
| M |
Input = 0–47.5 SCFH, Output = 0–9.5 SCFH (Recommended) |
| H |
Input = 0–95 SCFH, Output = 0–19 SCFH |
| C |
Custom: Multiple output ranges to meet customer specifications
(contact System Studies Incorporated) |
| ** Tubing Fittings: |
| BS |
Supplied with nickel-plated brass, standard tubing connectors for use with 3/8" plastic tubing. |
| BV |
Supplied with nickel-plated brass, standard tubing connectors, along with stainless steel check valves on all output ports. Used with 3/8" plastic tubing. |
| SS |
Supplied with stainless steel, 37° flared tubing connectors. Used with 1/4" braided stainless steel tubing. |
| SV |
Supplied with stainless steel, 37° flared tubing connectors, along with stainless steel check valves on all output ports. Used with 1/4" stainless steel tubing. |
| *** TD Types: |
| 1 |
High Resolution Flow Transducer |
| 2 |
High Resolution Dual Transducer (Recommended) |
| 9 |
No Transducer Supplied |
| U |
Resistive Flow Transducer |
Ordering Examples:
If you ordered a 9800-3082-HBS-2, for example, you would receive a Distribution Panel (Flow Finder Model) with 0-19 SCFH flow ranges at each of the manifold outports (built-in Flow Finders) and a 0-95 SCFH Flow Finder measuring incoming flow from the central office dryer. This panel would also include a High Resolution Dual Transducer and nickel-plated brass tubing connectors on each of the manifolds' outgoing ports.
If you ordered a 9800-3282-MBS-2, you would receive a Legacy Distribution Panel with a 0-47.5 Flow Finder measuring the incoming flow from the CO air dryer. This panel would also include a High Resolution Dual Transducer and nickel-plated brass tubing connectors on each of the flow rater assembly's outgoing ports. Individual air flow the cables in the vault are measured using the flow raters. Not outgoing Flow Finders are supplied with this panel.
Instrument Panel Part No. 9800-3081
When System Studies set out to design a better central office equipment rack, we concentrated our efforts on building a superior delivery system. One that would benefit from the logical arrangement of components and the simplicity of a well-conceived air distribution system. Our design concept also required that the rack be equipped with the best tools available for measuring delivery pressure and flow rates.
New Technology
From these efforts came the Central Office Air Distribution and Monitoring Assembly™. The assembly takes advantage of the latest flow measurement technology developed by System Studies Incorporated, and represents a giant step forward in the development of central office air pressure equipment.
In contrast to conventional office pipe alarm and meter panels, which are supplied with built-in flow raters for visually determining air consumption, the System Studies assembly is equipped with a separate and unique Instrument Panel (Part No. 3081). The panel includes everything you need for complete system measurements: two pressure gauges, a Flow Gauge™, a Flow Sampler™, and a times-two switch for "off-scale" (pegged) flow readings.
Flow Readings
To simplify the manual reading of flow rates, the Flow Sampler extends from the front of the instrument panel and can be easily attached to any of the assembly's Flow Finders™. The reading taken with the Flow Sampler is visually displayed on the panel's built-in Flow Gauge. This gauge, located on the right side of the panel, is color-coded to correspond to the flow ranges of the assembly's preinstalled Flow Finders.
Pressure Readings
When using the Flow Sampler to take manual flow measurements, simultaneous pressure readings, from 0–15 Pounds per Square Inch (PSI), are provided on the panel's center pressure gauge. The pressure reading is obtained from the Flow Finder's high pressure-side valve. This pressure gauge, together with the Flow Gauge, provide the capability of reading delivery pressures and flow rates simultaneously at the various panels. They also enable you to manually verify the accuracy of the High Resolution Pressure and Dual Transducers™.
The third gauge on the control panel (located on the left side) is a 0–30 PSI gauge used to measure the incoming delivery pressure from the central office dryer to the assembly's distribution manifold. It provides a visual indication of any changes or fluctuations in delivery pressure.
Components
Supplied as standard equipment on all assemblies, the System Studies Instrument Panel consists of the following components:
- A 0–30 PSI pressure gauge indicating input pressure from the air dryer. This gauge reads in 1 PSI increments.
- A 0–15 PSI pressure gauge used to measure delivery pressure at each of the panels. This gauge indicates a pressure reading when the Flow Sampler is connected to one of the panel's Flow Finders. This gauge reads in 0.5 PSI increments.
Instrument Panel (continued)
- A multi-range Flow Gauge. The Flow Gauge is color-coded to correspond to the flow range of the Flow Finder being read. There are four scales: 0–9.5, 0–19, 0–47.5, and 0–95 Standard Cubic Feet per Hour (SCFH).
- A built-in Flow Sampler.
- Times-two switch to extend manual flow measurements of all Flow Finders.
All reading discrepancies in the pressurization system are eliminated with the System Studies Instrument Panel in place. And technicians and dispatchers can manually verify any system reading. This panel—like all of the panels in the Central Office Air Distribution and Monitoring Assembly—demonstrates the unparalleled accuracy, simplicity of design, and unwavering reliability obtained with this rack assembly in place in your central office. Each panel in the Central Office Air Distribution and Monitoring Assembly measures 7 inches high, by 23 inches wide and 5 inches in depth. The maximum shipping weight per panel is 10 pounds. To place an order, or to obtain further information, contact the System Studies Sales Department. Please specify the product number when ordering.
Digital Panels
System Studies now offers four impressive new central office panels that supplement the remote monitoring capability of the High Resolution Dual (pressure/flow) Transducers with independent alarming of low pressure and high flow. The panels contain a dual digital meter which separately displays total panel air consumption and delivery pressure information. The panel's meter component also includes the capability for independent alarming of low pressure and high flow, pressure calibration based on altitude, and alarm acknowledgment.
New Technology
Each dual digital panel meter includes two 3-digit LEDs (.6 inches high) which provide a highly visible display of delivery pressure and total air consumption. This meter is powered by central office -48VDC, and it features simplified wiring to the 289H LSS™ monitor.
Power Source Requirements
The Digital Display Panels require a source of -24V DC power for their LED displays. System Studies supplies two AC power supplies that can be used with the Digital Panels, as well as two types of -48V DC to -24V DC power converters:
- Digital Power Supply Panel (117V AC to -24V DC). This equipment is recommended for supplying power to multiple digital panels when the 289H LSS monitor's -48V DC power requirement has already been fulfilled (by using either CO battery or the -48V DC power supply described below).
- DC to DC Power Converter (for multiple panel assemblies–one per rack). This -48V DC to -24V DC converter accommodates up to 18 digital displays.
- Power Supply Panel (117V AC to -48V DC). Used primarily to power a 289H monitor, this -48V DC source needs to be converted down to -24V DC when supplying power to the Digital Panels.
- Direct Digital Connection Module (for single panel installations, module fits in-line on hot side of power pair).
Digital Panels (continued)
Dual Digital Meter Features
- Reads 4-20 mA High Resolution Dual(pressure/flow) Transducer
- Displays converted readings on 3-digit LED displays
- Enables user to establish an alarm set point that trips on increasing flow rate
- Enables user to specify an alarm set point that trips on decreasing pressure reading
- Provides contact closures for flow and pressure alarms
- Allows manual resetting of contact closure during alarm conditions
- Displays flashing LED reading when alarm is detected (1 second on/1 second off)
- Displays slower flashing LED reading (1.5 seconds on/0.5 seconds off) when contact is acknowledged until the alarm clears
Specifications
| PANEL PART NUMBERING INFORMATION |
| |
| Digital Dual Pipe Panel |
P/N 9800-3780 Y2, P/N 9800-3780 Z2 |
| Digital Single Pipe Panel |
P/N 9800-3783 Y2, P/N 9800-3783 Z2 |
| Digital Distribution Panel |
P/N 9800-3782 LBS2, P/N 9800-3782 MBS2, P/N 9800-3782 HBS2 |
| Digital Legacy Distribution Panel |
P/N 9800-3682 LBS2, P/N 9800-3682 MBS2, P/N 9800-3682 HBS2 |
| Digital Power Pipe Panel |
P/N 9800-3799 L2, P/N 9800-3799 M2 |
| PART NUMBER CODING |
| |
| Flow Transducer / Flow Finder Ranges |
| X |
0-19 SCFH (538 LPH) |
| Y |
0-47.5 SCFH (1345 LPH) |
| Z |
0-95 SCFH (2690 LPH) |
| PART NUMBER CODING for Digital Panels (Continued) |
| |
| Transducer Type: |
| X |
0–19 SCFH (538 LPH) |
| Y |
0–47.5 SCFH (1345 LPH) |
| Distribution Panel Flow Transducer / Flow Finder Ranges: |
| L |
Low: Input=19.0 SCFH, Output=9.5 SCFH |
| M |
Medium: Input=47.5 SCFH, Output=9.5 SCFH |
| H |
High: Input=95.0 SCFH, Output=19.0 SCFH |
| Distribution Panel Fittings: |
| BS |
Manifolds supplied with nickel-plated brass tubing connectors for use with 3/8" plastic tubing. |
| Digital Power Pipe Panel Flow Transducer / Flow Finder Ranges: |
| L |
Low: 190 SCFH |
| M |
Medium: 475 SCFH |
| POWER CONVERTERS |
| |
| Digital Power Supply Panel (117V AC to -24V DC) |
P/N 9800-3186 |
| Power Supply Panel (117V AC to -48V DC |
P/N 9800-3096 |
| -48V DC to -24V DC Converter (for multiple panel assemblies) |
P/N 9800-3196 |
| Power Direct Connect Module (for single panel installation) |
P/N 9800-3197 |
Alarm Splitter Module Part No. 9800-4451
In order to expand the monitoring output capabilities of the System Studies Digital Panels, we now offer a rack-mountable Alarm Splitter Module (Part No. 9800-4451). The alarm splitter makes it possible to direct the panels' Dual Digital Panel Meter (DDPM)* flow and pressure contact alarms to two separate office monitors: the 289H / 289H-M LSS and a secondary alarm monitor, such as a Dantel. One Alarm Splitter Module will accommodate up to 12 DDPM components, plus one additional contact alarm–for a total of 25 devices.
The front of the Alarm Splitter Module is equipped with 25 LEDs, each of which represents a single contact alarm. When an LED is illuminated, the red diode indicates that the designated contact alarm is activated. LEDs are arranged sequentially left to right, starting with the high flow contact alarm for the DDPM designated as #1, followed by the DDPM's low pressure contact alarm. This sequence is repeated for each DDPM according to its position in the rack.
Located on the back of the Alarm Splitter Module are cutouts for a 2-pair power module and three 25-pair female amphenol connectors—one for the incoming connector block cable and two for the outgoing monitor cables. Like the Digital Display Panels, the Alarm Splitter Module is intended to be powered by -24VDC. A DC to DC Power Converter (Part No. 9800-3196) can be purchased to convert -48VDC battery power to -24VDC for use with the Digital Panels and Alarm Splitter Module. One DC to DC Power Converter will supply power to over 20 digital panels and one Alarm Splitter Module.
Features
- Generates independent bi-directional alarm output (redirects DDPM high flow and low pressure alarms to both the 289H LSS and one additional monitor type)
- Provides monitoring capability for up to 12 DDPM units (24 digital panel alarms), plus one additional contact alarm
- Indicates in-alarm condition via bright LED display
- Simple setup and installation (accepts standard 25-pair amphenol cables)
- Rack-mountable chassis, space saving design
Power Requirement
- -24V DC–utilizes DC to DC Converter
- (Part No. 9800-3196)
- Wiring via removable 2-pair power module
- Requires 20 or 22 gauge wire between DC to DC Converter and Alarm Splitter Module
Alarm Splitter Module (continued)
Cabling
- Equipped with three 25-pair amphenol cable connectors (one for incoming cable from connector block; two for outgoing cables to monitoring equipment)
- Connector gender: female (all three)
Dimensions
- Alarm Splitter Module P/N 9800-4451
DC to DC Converter P/N 9800-3196
- Chassis: 17.75 in wide (45.1 cm) x 4.25 in deep (10.8 cm) x 1.44 in high (3.7 cm)
- Face Plate Bracket: 23 in wide (58.4 cm) x 0.125 in thick (0.32 cm) x 1.75 in high (4.4 cm)
- Weight: approx. 6 lbs (2.7 kg)
PressureMAP Part No. 9800-7627
As the telco industry's most powerful and widely used cable pressurization
software, PressureMAP™ offers a unique range of capabilities for building and monitoring an optimum air pressure system. A common database serves maintenance, management and engineering personnel with equal convenience. Its PressureWEB™ application makes access to key system data as easy as logging on to your favorite web browser and following the intuitive navigation links. A single PressureMAP system can monitor up to 250 offices, with PressureWEB providing the option of viewing only the office information you wish to see.
Early Morning Functions
Each morning PressureMAP calls pressurization monitors in each of the offices programmed into its database. From the information obtained it updates device histories, analyzes alarm conditions, creates dispatch reports, evaluates system quality, and distributes reports.
- Updating Device Histories. At midnight device histories are adjusted to reflect the change of date; the daily device readings are shifted by a day and the current reading is used to establish a settled reading. Settled readings are taken in the early hours when cable pressures and manifold flows have recovered from the previous day's construction activity, and no new activities are likely to be underway.
- Creating Daily Dispatches. After today's readings are settled, PressureMAP creates the Device Dispatch Report, which consists of a list of the top five dispatches in an office and associated task information to help in leak locating. System errors pertaining to each office are also provided below the top five dispatches
- Generating System Quality Indexes. PressureMAP provides a rating of system quality based on a complex indexing formula. It uses both air pressure and air flow readings per sheath mile of cable to compute air pressure quality ratings, both by office and by route. This information is critical in setting maintenance priorities and identifying where engineering improvements may be necessary.
- Reports Sent to the Report Centers. Once the daily Dispatch Priorities and Indexes have been created, Dispatch Reports for each of the offices are sent via modem or LAN to designated field maintenance offices or other specified locations. These reports are sent in the early hours before maintenance personnel arrive for work.
Daily Activities
PressureMAP's data acquisition, analysis and distribution functions do not end with the morning rush hour traffic. These functions take place continually. In a typical two hour cycle, PressureMAP will call each office, receive alerts from office monitoring equipment, analyze device data, and send alarm reports to the designated centers.
- Accessing Device Data. PressureMAP uses a two hour calling cycle to obtain device readings from all of the offices in a system. If an office cannot be reached during the normal calling sequence, an attempt is made to recall the office during the cycle after the remaining offices on the list have been called.
PressureMAP (continued)
- Analyzing Data. After contacting each office, the alarm monitoring module of PressureMAP analyzes the data from all of the offices to determine if there are any alarm conditions. It processes alarms—not only for the office just updated, but for other offices in the system. In this way, it is able to detect if any major alarms have come in from a monitor while another one is being called.
- Cross-referencing Alarm Conditions with Field Activity.If a device goes into alarm, PressureMAP searches its database to see if any associated cable splicing activity may have caused the alarm. If it has, the Dispatch Alarm Report indicates that there is field activity associated with the alarm.
Report Distribution Module
One of PressureMAP's most important functions is compiling and distributing timely alarm and dispatching information. With busy schedules and increasing responsibilities monopolizing the work day, it's important to know that your air pressure information will be automatically delivered. That frees up more of your time, while assuring that critical system alarm information is never neglected.
- Morning Dispatch Report. PressureMAP sends early morning dispatches and associated tasks to designated field maintenance offices or other specified locations called Report Centers. The top five dispatches for all or any office may be sent to any of 72 predesignated Report Centers. The reports
can be sent via modem to printers, computer terminals, fax machines and over a local or wide area network via e-mail.
- Flexible Alarm Reporting. Alarm Centers differ from Report Centers in that they are established to receive notification of only system threatening conditions. PressureMAP provides maximum flexibility in structuring Alarm Center information and calling schedules. As many as 72 Alarm Centers may be created during a calling period.
- Alarm and Dispatch Reports via Email. PressureMAP systems that utilize LAN communications can specify email addresses for alarm and dispatch report distribution. Additionally, alarms can be sent to cell phones if SMS text messaging service is arranged by the subscriber with his/her cell phone service provider.
- Alarm and Dispatch Report Fax Support. PressureMAP includes the option of having both alarms and dispatch reports sent directly to a center's fax machine.
- Alphanumeric Pager Support for Alarms .Special entries in the Alarm Center data fields will allow an Alphanumeric Pager to become an Alarm Center.
Alarm Monitoring Module
This module of PressureMAP scans the system for low pressure or high flow conditions and filters out everything but the top priority, system-threatening conditions. PressureMAP will then notify the appropriate Alarm Centers and provide information to help in leak locating.
PressureMAP (continued)
- Alarm Dispatch Histories. All alarm dispatch information can be sorted, making it possible to review a record of activity related to a particular dispatch. A chronological list of all the events related to either a particular task number, or a particular device number can be created, which is useful for confirming exactly which Alarm Centers received alarms.
- Alarms Based on Ranges. PressureMAP alarms on flow increases that are proportional to the range of the device being read. An alarm will be generated for a 3 SCFH increase if the range is less than 47.5 SCFH and for a 5 SCFH increase if the range is between 47.5 SCFH and 95.0 SCFH.
- High Priority Devices. Any device can be designated a high priority device by setting individual alarming parameters. PressureMAP will then alarm for less extreme pressure and flow changes.
- Alarm Catastrophes. Sometimes an office can generate a large number of alarms (if a dryer goes down, for example). In the event of a malfunction of this nature, PressureMAP will filter out the related alarms, sending out only those alarms that are the source of the catastrophe.
Field Activity Monitoring Module
This PressureMAP module flags the alarms or dispatches that are caused by maintenance or construction work. The program will keep track of all cable openings and relate them to changes in flow or pressure in the adjacent pneumatic sections. Field Activity Monitoring information is sorted into nine different Cable Opening Reports as well as being reflected in reports produced by PressureMAP.
- Multiple Activity Types. A total of four activity types are available in the Field Activity Monitoring module. These categories are used for tracking construction, maintenance, cable repair, and miscellaneous activities.
- Location Cross Reference This database provides cross referencing of physical locations and related or adjacent location codes.
- Quick Field Access. A special login and password can be used to start up Field Activity Monitoring Data Entry directly at the Cable Activity screen, bypassing some of the initial Data Entry selections.
CPAMS Compatibility
PressureMAP offers full support for most of the pressurization monitors available, including the System Studies Dial-a-Ducer (now a discontinued product), uM260 Micro Monitor, and 289H and 289H-M Loop Surveillance Systems. Most of the monitors manufactured by Chatlos and Sparton are supported, as well as the E2A Remote Terminal (Line Access Relay Panel), TMACS 1000 monitor, Lancier 101 and 1005 monitors, Nicotra MINIDAS monitors, Telsec 1500 and 2000 monitors, and the Teleducer 50.
PressureMAP (continued)
Hardware Platform
The latest version of PressureMAP, Version 27, is the first release that is capable of running on either an SCO UNIX or a Linux operating system. Customers who wish to use SCO UNIX with the new software must install the operating system and PressureMAP on a System Studies-certified MAP Engine computer. The MAP Engine VIII computer system is the most recently certified communications equipment for Version 27, and SCO UNIX Version 5.0.7 provides optimum system performance and compatibility with the MAP System, including the PressureWEB web browser application.
Due to the more universal hardware driver support offered by the Linux operating system and its open architecture, there is no strict hardware requirement for PressureMAP Version 27 running Linux. The software can be run on a MAP Engine computer or a platform of choice. Please contact System Studies for more information on hardware requirements for Linux.
PressureWEB (Included with Part No. 9800-7627)
Locating the information you need from your PressureMAP™ system finally got a whole lot easier. Beginning with PressureMAP Version 26, MAP System users now have the ability to view important system information and reports over the Internet via their favorite web browser. Rather than scroll through PressureMAP's complex text menu system to search out a desired report or program function, you can now click on intuitive hyper-links to access the information you need.
This new capability, made possible by the development of an application called PressureWEB™, is guaranteed to streamline your PressureMAP interaction and bring a new level of control to your finger tips.
Among the views available in PressureWEB are the following:
- Device Status by Pipe Report with multiple view options (e.g. View by Device, by Alarm, Type, Location, Access #, Devices Not Reading, etc.)
- System Quality Index (by Office and by Route)
- Specific Device Information
- Realtime Readings (for 289H LSS-monitored offices only)
- Pair Diagnostics (for 289H LSS-monitored offices only)
- Alarm Condition information displayed in a pop-up window for each starred and routine PressureMAP Alarm.
During the PressureWEB setup process, you can designate the individual offices that you would like to access on a regular basis. Once the selection has been made, a browser cookie is set so that the next time you log onto the program, using the same browser, you will be presented with a list of the selected offices in a display called
My Offices.
To enable you to initiate certain program functionality and interaction with office monitors, several of PressureWEB's reports include Action links. From the various Device Status Views available, for example, you can click a link to generate and print new readings for the entire office. When viewing Specific Device Information, the Action button produces the following links:
- Map Device–if a device listing contains latitude and longitude information, this link produces a Google Map of the device's location.
- Route Tone–makes it possible to select a desired tone frequency and place it on the designated device pair to help identify the pair in the field (289H only).
- Request Realtime Readings for the device–once PressureWEB connects to a 289H LSS office, continuous realtime readings are provided until you close the pop-up window provided (289H only*).
PressureWEB (continued)
- Perform Pair Diagnostics for the device–includes AC and DC voltage measurements, plus capacitance and resistance readings (289H only).
- Get New Office Readings–like the Device Status View reports, it is possible to force an office update from the Specific Device Information Screen and generate a new device reading.
To provide background information about the various PressureWEB reports, column headings are linked to pop-up windows which contain a text definition of the column’s contents. As a supplemental feature, PressureWEB also offers a Tools section with links to an on-line cable pressurization calculator and to the html version of System Studies’ comprehensive 300-page Cable Pressurization Theory and Practice Manual.
* Realtime Reading support for other systems will be available in the near future.
