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2. DIGITAL PRESSURE GAUGES
2.1 DPC-A3
2.1.1 MODEL NUMBER CONFIGURATION
The DPC-A3 digital pressure controller provides control
of low differential pressure applications for air and other
compatible non-combustible gasses. These instruments
have a large LED display for pressure indication, a LCD
display for programming and additional LEDs to indicate
percentage of output, setpoints and alarm status. The
instruments are fully programmable from the key pad
face or by utilizing the Opti-Link™ communication port
for no-touch programming. Options for the instruments
include a 4-20 mA output. The base model does not
include the 4-20 mA option, which is a special
order option.
2.1.2 SPECIFICATIONS
Maximum Pressure: Ranges ≤ 4" w.c. = 2 PSI;
Ranges ≥ 5" w.c. = 10 PSI
Media compatibility: Air and compatible non-
combustible, non corrosive gasses
Accuracy: - 1.00%
Temperature Ranges:
Compensated: 10° to 140°F (-12° to 60°C)
Operating: 10° to 140°F (-12° to 60°C)
Thermal Effect: +/- 0.02% FS/°F
Output Signal: 4-20 mA (option)
Loop Resistance: 750 Ω Max (for internally sourced
power); 1800 Ω Max (for externally sourced power
of 36 VDC)
Power Supply: Universal 20-240 VAC or VDC
Housing Material: Glass Filled Nylon
Enclosure Rating: Designed to meet NEMA 4X face
Relays: (2) SPDT 8 Amps @ 250 VAC resistive,
5A @30 VDC
Electrical Connections: screw terminals
Response Time: <100 ms
Display: 4 Digit, red LED, 1⁄2" digits;
LCD programming display
Process Connection: Push on connection
for 3/16" tubing
Agency Approvals: ETL, CE
2.1.3 INSTALLATION
2.1.3.1 MOUNTING
Flush Mounting – For new applications, cut a 4-9/16"
hole in the panel. Insert the control with the provided
gasket through the hole and secure it to the panel with
the provided mounting tabs and screws. Retrofitting old
technology is also easy with the DPC-A3. This gauge
has been designed to fit in industry standard holes
ranging from 4-9/16" to 4-13/16". Simply remove the old
device and insert the new control into the existing
cut out.
2.1.3.2 PRESSURE CONNECTIONS
Two 3/16" pressure connections are located on the back
of the unit, labeled "High" and "Low". For best results,
connect 3/16" I.D. push on tubing to the pressure
connections. If the High connection has a greater
absolute value than the Low connection, the front
display will give a positive value. If the high connection
has a lower absolute value than the low connection,
the front display will give a negative value.
Pulse Control Panel
DPM/DPC
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