Rae QRAE 3 - Alarm System Summary

62
Alarms Summary
* For oxygen, “low alarm limit” means a concentration is lower than the low alarm limit.
Testing Alarms
Under normal operation mode and non-alarm conditions, the audible, visual, and
vibration alarms can be tested at any time by pressing the [Y/+] key.
Message
Condition
Alarm
Indications
HIGH
Gas exceeds “High Alarm” limit
3 beeps/flashes
per second
OVR
Gas exceeds sensor’s measurement
range
3 beeps/flashes
per second
MAX
Gas exceeds electronic circuit’s
maximum range
3 beeps/flashes
per second
LOW
Gas exceeds “Low Alarm” limit*
2 beeps/flashes
per second
TWA
Gas exceeds “TWA” limit
1 Beep/flash per
second
STEL
Gas exceeds “STEL” limit
1 Beep/flash per
second
Crossed pump icon flashes
Inlet blocked or pump failure
3 beeps/flashes
per second
Empty battery icon flashes
Low battery
1 flash, 1 beep
per minute
CAL
Calibration failed, or needs calibration
1 beep/flash per
second
NEG
Zero gas reading measures less than
number stored in calibration
1 beep/flash per