GX-2012 Operator’s Manual
Start Up, Leak Check Mode • 83
10.
The Battery Level and Alarm Pattern Screen appears next.
AL -- H indicates latching (hold) alarms and AL -- A indicates self-resetting
(automatic) alarms. The number shown indicates the voltage of the batteries. If the
unit is powered by alkaline (dry cell) batteries, a “D” will appear before the “V” in the
lower right corner.
11. The display then indicates the full scale values for all channels.
12.
If the GX-2012 experiences a sensor failure during start up, a screen indicating which
sensor failed displays. In the example below, the catalytic LEL sensor has failed.
If the catalytic LEL sensor fails, it is not possible to enter Leak Check Mode. Press and
release the RESET SILENCE button twice to acknowledge the failure and return to
the Mode Select Screen. Replace the failed sensor as soon as possible.
If the oxygen, CO, or H
2
S sensor is installed and fails, press and release the RESET
SILENCE button to acknowledge the failure and continue to Leak Check Mode.
If a vol% sensor is installed and fails, no indication will be given and the unit will
enter Leak Check Mode.
bAtt
3.7
AL-H V
bAtt
3.7
AL-H D: V
FAIL
%LEL
CH
4
SENSOR
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