56
Figure 28. Relay Output Wiring
81. Power Fail
82. Watchdog Timer
83. Manual Mode
84. General Malfunction
85. General Alarm 1
86. General Alarm 2
WARNING
This sequence can cycle repeatedly and may result in exposure to toxic gas while
ERT personnel are repairing the leak.
If the ACM 150 monitor output relays are used to shut down the gas source and
interrupt the gas flow, a latching relay must be used in the control loop. If not, the
ACM 150 monitor relay will shut down the gas source and stop the leak detected
by the ACM 150 monitor. The alarm will soon clear and reset the relay, restarting
the gas flow, and the leak will be detected again.
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