GM-1 Analog Output Board

Manning Systems GM-1 Single Channel Readout / Alarm Unit has audible / visual indications of gas concentration, as well as three (3) relay outputs as a standard feature. When an application requires that the 4/20 mA signal also be monitored, the optional GM-1-AOB provides a means to send that sensor signal directly to a PLC or other monitoring device that will input a 4/20 mA signal.

The GM-1-AOB Analog Output Board provides an isolated, 2-wire, 4/20 mA output signal. The Analog Output Board requires the customer's monitoring equipment to provide a 12 to 24 VCD 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 GM-1-AOB returns a 0.5 mA signal. The output operates as a two wire, loop powered device.

For larger applications, the Manning Systems GM-10 and GM-4 Multi-channel Readout / Alarm Systems also have optional 4/20 Analog Output Boards available.

Specifications

Supply Voltage, Vs:	+12 to +24 VDC nominal, 30 VDC maximum
Supply Current, Is:	0.5 to 20 mA, reverse protected
Nominal Load Resistance:	100 Ohms
Maximum Load Including Cable:	Vs = 12 volts  200 Ohms Vs = 15 volts  300 Ohms Vs = 20 volts  500 Ohms Vs = 24 volts  600 Ohms
Connections:	Phoenix 2 pin vertical socket, mating plug supplied