Step 7 – Self-Test Mode
This detector is equipped with a self-test mode that can be activated any time after warm-up by
pressing the “SELF TEST” button for approximately 1 second. This mode will test the display,
indicator LEDs, relays, and buzzer for proper operation. Any ventilation components
connected to these relay terminals will operate if their power supply is active. The ventilation
component relays will remain on for 30 seconds to allow sufficient time for testing if problems
occur. There is a 30 second period between each relay actuation. At the end of this test, the
buzzer will sound for 3 seconds and the detector will resume normal operation as described in
step 6.
Page 19 contains a more complete discussion of this self-test mode.
At this point, the detector is now ready to monitor for the presence of the target gas(es) and
control the ventilation system to efficiently remove the gas from the protected area.
IOM01
Rev 1.0 – December 22, 2020 13
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