Description

DPG1000ADA and DPG1000DAR Digital Pressure Gauges with Alarms and Analog Output

Using the DPG1000ADA and DPG1000DAR Alarm Outputs Normal (Fail-safe) vs. Reverse Action—The convention for alarm action is that with the normal or fail-safe configuration, the alarm output relays will be CLOSED (relay energized) for a clear or non-alarm condition and OPEN (relay not energized) for an alarm condition. This is primarily for users who require an alarm condition if the gauge loses power or suffers a catastrophic failure. In the wiring diagrams, the normally closed and normally open designations refer to standard relay terminology (i.e., the relay contact status with the relay coil not energized). Therefore, with the normal (fail-safe) configuration in a green or non-alarm condition, the relay will be energized so that continuity can be expected between the common and normally open leads. In a red or alarm condition, the relay will be open (not energized) so that continuity can be expected between the common and normally closed leads.

DPG1000ADA AC/DC Powered with Dual Alarms
SPECIFICATIONS:
Accuracy: ±0.25% FSO or better, ±1 least-significant digit (includes linearity, hysteresis, repeatability)
Controls and Location: Display zero/span, non-interactive, ±15% range; setpoint 1 and setpoint 2, 0 to 100% range; top-accessible, multiturn potentiometers
Alarm Deadbands (Hysteresis): 1% of FSO, standard
Alarm Outputs: Dual form “C” (SPDT) relay contacts; individual setpoint 1 and setpoint 2 settings via top-accessible multiturn potentiometers; high/low alarm configuration standard, others available; relay contacts rated 1 A/24 Vdc, 0.5 A/115 Vac, non-inductive
Alarm Indicators: Bicolor (red/green) LEDs on front panel
Test Function: Front-panel TEST button, when depressed, toggles both SP1 and SP2 alarm status, independent of pressure input, to allow testing of system operation
Alarm Response Time: 100 ms typical
Power: Any AC source of 8 to 24 Vac, 50/60 Hz, or any DC source of 9 to 32 Vdc, 1.0 W maximum; optional wall-mount power supply available to operate on 115 Vac (DPG1000-PS)

DPG1000DAR DC Powered with Dual Alarms and 4 to 20 mA Output
SPECIFICATIONS:
Accuracy: ±0.25% FSO or better, ±1 least-significant digit (includes linearity, hysteresis, repeatability)
Controls and Location: Display zero/span, non-interactive, ±15% range; setpoint 1 and setpoint 2, 0 to 100% range; test calibration level, 0 to 100% range; top-accessible, multiturn potentiometers analog output zero/span; internal potentiometers
Alarm Deadbands (Hysteresis): 1% of FSO, standard
Alarm Outputs: Dual form “C” (SPDT) relay contacts; individual setpoint 1 and setpoint 2 settings via top-accessible multiturn potentiometers; high/low alarm configuration standard; relay contacts rated 1 A/24 Vdc, 0.5 A/115 Vac, non-inductive
Alarm Indicators: Bi-color (red/green) LEDs on front panel
Alarm Response Time: 100 ms typical
Analog Output: 4 to 20 mA DC; output drive (compliance) determined by power source
Analog Output Response Time: 50 ms, typical
Test Function: Front-panel TEST button, when depressed, toggles both SP1 and SP2 alarm status and simultaneously sets display and analog output to “calibration” level, independent of pressure input, to allow testing system operation
Power: Any DC source of 9 to 32 Vdc, 1.0 W max
Electrical Connection: 0.9 m (3′) long, 4-conductor 22 AWG shielded cable for power and retransmitted output; 0.9 m (3′) long, 6-conductor 22 AWG cable for alarm contacts