RDARM
Remote Dual Alarm Relay Module

The RDARM is a 4/20 mA feed-through device designed to provide remote dual stage alarm relay outputs and can be used with any Manning Systems gas sensor.

Setpoint adjustment is by a two-position switch, allowing standard trip levels of 33% / 100 % full scale trip levels or 50 % / 100% full scale. Trip levels can be reprogrammed for individual job requirements. The SPDT relays are unpowered in normal state.

Three LED's indicate status of Power (green), Low Alarm (yellow) and High Alarm (red).

Specifications

System Design:	Three-wire 4/20 mA feed-through device designed to provide dual stage alarm relay outputs
Power Requirements:	50 mA @ 24 VDC, can be powered by any Manning Systems GM series Readout / Alarm unit or a PLC-based control panel providing +24 VDC.
Setpoint Adjustment:	two-position switch Left position = 33 % / 100 % full scale Right position = 50 % / 100 % full scale (unit can be reprogrammed for other than standard trip levels)
LED Status Indicators:	Power (green) Low ppm Alarm (yellow) High ppm Alarm (red)
Enclosure:	NEMA 1 molded plastic with windowed front for viewing LED's
Enclosure Dimensions:	6.125" L x 4.62" W x 2.255" H
Operating Temperature:	-10º F to +120º F, non-condensing
Operating Humidity:	5-95 % RH non-condensing
Relay Rating:	2 amps @ 24 VDC
Relay Operation:	Unpowered in normal state (not fail-safe). Only an alarm condition causes relays to change state. Includes a two-second hysteresis for relays (2 second time delay on and off)