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General Alarms
Testing Alarms
Under normal operation mode and non-alarm conditions, the audible, visible, and vibration
alarms can be tested at any time by pressing the [Y/+] key.
Gas exceeds “High Alarm” limit
3 beeps/flashes per second
Gas exceeds sensor’s measurement range
3 beeps/flashes per second
Gas exceeds electronic circuit’s maximum
range
3 beeps/flashes per second
Gas exceeds “Low Alarm” limit*
2 beeps/flashes per second
Crossed pump
icon flashes
Inlet blocked or pump failure
3 beeps/flashes per second
Empty battery
icon flashes
1 flash, 1 beep per minute
Calibration failed, or needs calibration
Zero gas reading measures less than
number stored in calibration
* For oxygen, “low alarm limit” means a concentration is lower than the low alarm limit.