Rae QRAE 3 - Technical Specifications

49
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.
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 second
* For oxygen, “low alarm limit” means a concentration is lower than the low alarm limit.