OPERATION OF AREARAE-Gamma
2-16
Table 2.2
Alarm Signal Summary
Condition Alarm
Signal
Message on
LCD Screen
Gas exceeds
“High Alarm” limit
3 beeps & flashes
per second
Sensor Name
Gas exceeds
“Low Alarm” limit
2 beeps & flashes
per second
Sensor Name
Gas exceeds
STEL
1 beep & flash per
second
Sensor Name
Gas exceeds
TWA
1 beep & flash per
second
Sensor Name
Negative Drift or
Over Range
3 beeps & flashes
per second
“NEG” or “OVR”
Pump failure
3 beeps & flash per
second
“Pump”
LEL sensor off
3 beeps & flash per
second
LEL Sensor
name and “Off”
PID lamp failure
3 beeps & flashes
per second
“Lamp”
Low battery
1 beep & flash per
minute
“Bat”
Memory full
1 beep & flash per
minute
“Mem”
Alarm Signal Testing
Under normal conditions, it is possible to test the AreaRAE-
Gamma LED, buzzer, and back light by momentarily pressing
[Y/+]. The buzzer will beep once, and the LED and backlight
will flash once to indicate alarm signals are functioning
correctly.
WARNING
Because alarm signals are disabled during PC Communication
and Calibration modes, it is highly recommended to use these
modes only in areas known to be non-hazardous, in order to
reduce the risk of exposure to hazardous atmospheres.
