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HIGH Alarms
1) Audible Alarm (3 times/second)
2) Visual LED blinking (3 times/second)
3) Vibrator Alarm (1.5 time/second)
Alarm Set Point
The below table shows the factory default settings
Alarm
HIGH
15 ppm
LOW
10 ppm
These set points can be changed using the IR-Link. Please refer to your local jurisdiction or Company policy for
guidance on the set points. To display the detector alarm set points, press the button.
SHUT-DOWN Alarm
SHUT-DOWN alarm occurs in the following three cases.
Pioneering Gas Sensing Technology.
H
S
CO
2
200 ppm
35 ppm
If the unit is displaying "EO4", the battery voltage will be too low or
below a certain level when 3 hours passed.
The unit will be displaying "EO5" if the self-test fails three
consecutive times.
NOTE:
If the self-test fails two consecutive times, the unit will
emerge a warning such as a HIGH alarm.
If the unit is displaying "EOL", the life remaining of the unit
will be less than 8 hours.
ARA Instrument User Manual V1.1
SO
2
10 ppm
5 ppm
Page 13 of 27
O
2
23.5 %
19.5 %
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