GASMAX II Operation & Maintenance Manual, Revision 7.0
Page 17
REMOTE TOXIC SENSOR TRANSMITTER WIRING (CH1)
GASMAX II monitors with remote-mount toxic sensor transmitters are shipped in two pieces and sensor
wiring must be installed by the end user. When used with Channel 1, toxic sensor transmitters connect to
the Channel One 4-20mA input on the right-hand side terminal strip of the I/O power supply board.
If the 10-0233-D4 dual 4-20ma input I/O power supply board is installed in the GASMAX II then the
remote sensor transmitter is connected as shown below (+24V is available on TB1 pin 1).
IMPORTANT
: TOXIC SENSORS MAY FAIL TO OPERATE PROPERLY IF POWER IS NOT APPLIED WITHIN 6
MONTHS OF SHIPMENT. CONTACT GDS CORP FOR RECOMMENDATIONS IF THIS SITUATION MAY OCCUR.
Figure 3-9: Channel 1 Remote Toxic Sensor Transmitter (10-0233-D4)
If the 10-0233-B4 4-20ma input I/O power supply board is installed in the GASMAX II then the
remote sensor transmitter is connected as shown below (+24V is not available on TB1 pin 1).
Figure 3-10: Channel 1 Remote Toxic Sensor Transmitter (10-0233-B4)
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