The Digital Dual Pipe Panel is supplied with two Dual Digital Panel Meters (one for each air pipe), two Flow Finders (either 0-47.5 SCFH or 0-95 SCFH, depending upon ordering selection), two High Resolution Dual (pressure/flow) Transducers, two shutoff valves, and two precision pressure regulators.

Our Digital Single Pipe Panel is supplied with one Dual Digital Panel Meter, a Flow Finder (either 0-47.5 SCFH or 0-95 SCFH, depending upon ordering selection), a High Resolution Dual (pressure/flow) Transducer, a shutoff valves, and a precision pressure regulator.

The Digital Distribution Panel is supplied with two Flow Finder Manifolds, each containing five Flow Finders (for manually measuring flows to individual cables). It is also equipped with a higher range Flow Finder to monitor total panel air consumption. The pressure tubing connector fittings from the manifolds are nickel-plated brass, 1/4" NPT to 3/8" tubing. Pressure and flow rates are monitored remotely with a High Resolution Dual (pressure/flow) Transducer. One Dual Digital Panel Meter is supplied to provide visual pressure and flow readings and independent contact alarm monitoring.

To accommodate those who prefer taking manual cable flow readings using panel flow raters and a Portable Flow Gauge, we have developed this Digital Legacy Distribution Panel. Like all of the panels available for purchase, this panel can be ordered in a variety of flow ranges to meet specific installation requirements. Each panel is equipped with a flow rater assembly that provides ten 0-9.5 SCRH flow raters for taking individual cable flow readings. It is also equipped with a Flow Finder and High Resolution Dual (pressure/flow) Transducer to monitor total panel air consumption remotely. Pressure tube connector fittings from the flow rater assembly are nickel-plated brass, 1/4" NPT to 3/8" tubing. One Dual Digital Panel Meter is also supplied to provide visual pressure and flow readings and independent contact alarm monitoring.

This digital panel power supply is a rack-mounted component that converts 117V AC to -24V DC. Mounted to a standard 23" x 7" panel, the unit can be easily and optimally integrated into any digital panel equipment rack configuration. The power supply is equipped with two sets of powerloads (outputs) which can be directed to separate digital panel equipment racks. Located on the back of the panel is a lighted power switch which indicates ON/OFF status.

The Alarm Splitter Module (P/N 9800-4451) is a central office panel component designed for use with the Digital Display Panels. Sized for a standard 23" wide equipment rack, the alarm splitter makes it possible to direct the panels' flow and pressure contact alarms to two separate office monitors: the 289H / 289H-M LSS and a secondary alarm monitor. One Alarm Splitter Module will accommodate up to 12 digital display pressure/flow components, plus one additional contact alarm—for a total of 25 devices.

Located on the front of the Alarm Splitter Module are 25 LEDs (see enlarged photo), 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 digital display unit designated as #1, followed by the unit's low pressure contact alarm. This sequence is repeated for each digital display on the rack assembly based on its position in the rack.

This power supply panel converts 117V AC to -48V DC. Designed originally as an alternative to central office -48V DC battery for powering 289H and 289H LSS monitors, it can also be used with a -48V DC to -24V DC Converter to supply power to the digital panels. For this reason, the 117V AC to -48V DC power supply panel is a viable option when upgrading an existing 289H-monitored office with new digital panel equipment.

Like our other panel equipment, this power supply panel can be mounted to a standard 23" x 84" equipment rack. It measures 23" wide by 7" high. Output is -48V DC at 3 amps.

The Digital Panels' DDPM components require a power source for the LED display. Central office battery can be used for this purpose, but only if the voltage is reduced from -48V DC to -24V DC. The 9800-3196 DC to DC Converter fulfills this requirement for up to 18 digital displays. Mounted to a 23-inch wide panel, the converter consists of a separate power conversion unit and conductor terminal strip located on the back of the panel, and a front-access On/Off switch. Threaded lug connectors are supplied for the incoming CO battery source and for output to each of the digital panels.

The Dual Pipe Panel includes two Flow Finders, two High Resolution Transducers (Flow or Dual), pressure regulators and shutoff valves. Panels can also be ordered without transducers or with resistive flow transducers (ranges 0–20 SCFH, 0–47.5 SCFH an 0–100 SCFH. Material is cold rolled steel, 12 gauge, and panel dimensions are 23 inch (58.4 cm) wide by 7 inches (17.8 cm) high.

System Studies' Single Pipe Panels are equipped with the latest components for monitoring and controlling air flow from the central office dryer(s) to an individual half inch CA3131 air pipe. Each panel is supplied with a pressure regulator to control delivery pressure to the system, an on/off valve and a Flow Finder. Most panel configurations also include either a High Resolution Flow or Dual (pressure/flow) Transducer. If desired, however, panels can be ordered without a transducer or with a resistive flow transducer (ranges 0–20 SCFH, 0–47.5 SCFH an 0–100 SCFH. Material is cold rolled steel, 12 gauge, and panel dimensions are 23 inch (58.4 cm) wide by 7 inches (17.8 cm) high.

System Studies' original central office Distribution Panel provides precise control of delivery pressures and unparalleled accuracy in manual air flow measurement. It is equipped with an air flow shutoff valve, two five-port Flow Finder Manifolds™, and a high quality pressure regulator. The panel's High Resolution Flow or Dual (pressure/flow) Transducer provides the critical data needed for prioritized dispatching and alarming. If desired, panels can also be ordered with a resistive flow transducer or without a transducer.

The Legacy Distribution Panel is supplied with a ten-bank flow rater assembly (for measuring air flow to the individual cables). It is also equipped with a Flow Finder to monitor total panel air consumption. Like the Flow Finder Manifold version of our distribution panel, this panel can be ordered with one of three possible transducer types (High Resolution Flow, High Resolution Dual or resistive flow). Tubing connector fittings are standard 1/4 inch NPT to 3/8 inch tubing.

The Central Office Instrument Panel is used with the System Studies Pipe and Distribution Panels to provide accurate, manual pressure and flow readings. The panel contains the following components: a 0-30 PSI (207 kPa) pressure gauge to measure input pressure from the central office air dryer, a 0-15 PSI (103 kPa) pressure gauge to measure delivery pressure at the Distribution and Pipe Panels, a Flow Gauge and Flow Sampler to measure panel air consumption, a times-two switch that extends manual flow measurement of all Flow Finders, and a phone jack with RJ-11 connector and two clip-on terminal posts (used for accessing device pairs via laptop or hand set).

The Delivery Pressure Panel provides the dual function of monitoring both delivery pressure from the air dryers and changes in barometric pressure. It is comprised of a Part No. 9800-3088-23 panel, equipped with one 0-30 PSI High Resolution Pressure Transducer and a Barometric Pressure Transducer. The pressure transducer monitors incoming delivery pressure from the air dryers to the rack assembly panels, and the barometric pressure transducer is used to compensate for drops in dryer output due to storm activity. This device serves two important functions: it improves monitoring analysis and dispatching, and it reduces nuisance alarms.

This 3.5 inch (8.9 cm) high Transducer Panel makes it possible to extend the number of High Resolution Transducers that can be accessed from a centralized location. The panel can be equipped with up to five transducers, which are pneumatically connected to Flow Finders installed at the back of existing central office panels.

The 7 inch (17.8 cm) high Transducer Panel is designed to be used in the same central office applications as those described for the 5 slot Transducer Panel (Part No. 9800-3088-23) This full size panel will accommodate 10 High Resolution Pressure, Flow or Dual Transducers.

The Power Pipe Panel is a specially designed central office panel that accommodates a high capacity, 1" air pipe (Power Pipe). The panel contains a pressure regulator to control air dryer output pressure, a 0-475 SCFH (13,450 LPH) Flow Finder and High Resolution Dual Transducer to remotely measure delivery pressure and flow rates, and a shutoff valve.

A similar one inch air pipe panel configuration is also available as a Power Pipe Return Panel (Part No. 9800-3085). The Power Pipe Return Panel is used to remove air flow from a Positive Air Flow System™. Each panel is equipped with the components for monitoring and regulating the flow rate of one return Power Pipe.