Riken Keiki GW-3, Operation Manual

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4. Alarm Functions 4-2. Gas alarm activation
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<Gas alarm display>
When a gas alarm occurs, the alarm type is
indicated on the LCD display and the corresponding
gas concentration display blinks.
Display example: Carbon monoxide (CO) concentration: 200 ppm
when the third alarm is triggered
NOTE

If the gas detection range is exceeded (over scale), [OVER] appears on the LCD display, and [ ∩∩∩∩ ] will
blink in the gas concentration display area.
WARNING

A gas alarm indicates the presence of extreme danger. The user must take appropriate action after taking
appropriate steps to ensure safety.
NOTE
 The alarm pattern can be checked in the alarm setpoint display in display mode. Note, however, that the
gas concentration display will not blink in alarm tests. (Refer to ‘7-4. Performing alarm tests’ in the Technical
Manual.)
 Press the POWER/MODE button to reset the gas alarm.