GM-4 Analog Output Board

Manning Systems GM-4 Four-channel Readout / Alarm System has audible / visual indications of gas concentration, as well as four "common" relay outputs as standard equipment, one relay each for Warn, Alarm, Fault and Horn. These relays trip if any channel goes into the associated condition. If individual channel 4/20 mA output is required, the GM-4-AOB provides a means to send the sensor signal directly to a PLC or other monitoring device that will input a 4/20 mA signal.

The GM-4-AOB Analog Output Board provides an isolated, 2-wire, 4/20 mA output signal for each of the GM-4's channels. The Analog Output Board requires the customer's monitoring equipment to provide a 12 to 24 VDC supply voltage applied at the "+24" terminal, and returns 4/20 mA at the "SIG" terminal. If the signal from the sensor is lost, the Analog Output Board returns a 0.5 mA signal. Each output operates as a two wire, loop powered device.

Individual channel relay outputs are available with the optional GM-4-RB Relay Board that has two relays per channel (one each for Warn and Alarm), total of eight (8) relays.

Specifications

For further details, please refer to the GM-4 Installation and Operation Manual.