6
Single gas detector
PDM
At the last step, if you press the key or do not push any button for a second, the PDM will re-
turn to Measuring mode.
3.3. ALARMS / BATTERY / TEST FAILURE DISPLAY
When a gas concentration exceeds alarm set points, or will be displayed and the device
will vibrate, flash its LEDs, and beep. To stop alarms, evacuate immediately to a clean air locati-
on. The gas concentration will decrease and the alarm will stop.
Alarm
Alarm standard
LCD Display
Alarm and Vibration
1st Alarm
Exceeds
1st alarm
Icon &
concentration
2nd Alarm
Exceeds 2nd alarm
Icon &
concentration
Remaining
Life
Below 30 days
End of life
Past 24 months
Lifetime is over. Replace PDM.
Test Failure
Failure of sensor
test, calibration or
self-test
Battery Low
Low Power
Bump Test
Due
Bump test period
Preform a bumptest
Calibration
Due
Calibration period
Preform a calibration
CAUTION
The alarm limits are set based on international standards. Only change these
levels to make them conform to local rules and regulations.
