Hydro Instruments GA-170 - GA-170 4-20 Ma Output Wiring Diagram

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FIGURE 12

GA-170 Gas Alarm 4-20 mA Output:

1. Remove the red sensor wire from the 24V circuit board terminal.

2. Splice the red sensor wire to the black wire in the signal cable.

3. Connect the red wire in the signal cable to the same 24V circuit board terminal that was being

used.

NOTE: If the 4-20 mA output is not connected to a device the circuit will not be complete and the

sensor will not function. You may short the wires together to complete the circuit if not utilizing the

4-20 mA output.

Red Sensor Wire

Splice

4-20 mA

Output

Black Sensor Wire

To SN1 on

Circuit Board

To 24V on

Circuit Board

To p

Bottom

Black Signal Wire

Red Signal Wire