94 • Leak Testing GX-2012 Operator’s Manual
1. Turn the GX-2012 on as described in “Turning On the GX-2012,
Leak Check Mode” on page 83. Select the desired display range. In
the example below, 500 ppm has been selected. Press and hold the
(SHIFT)T button, then press and hold the AIRS button and hold
both until you hear a beep. The Station ID Select Screen will
display and the current station ID will be flashing.
NOTE: If the gas levels reach a warning or alarm condition while in
this screen, the GX-2012 will go into alarm.
2. Use the (SHIFT)T and AIRS buttons to scroll to the desired
station ID, then press and release the POWER ENTER button to
continue to the Base Reading Screen. To return to the Station ID
Select Screen without taking a base reading, press and release the
RESET SILENCE button.
3. In order to get a base, or background, reading, take the instrument
a few feet away from where you intend to test. To save the base
reading, press and release the POWER ENTER button.
NOTE: If the gas concentration exceeds the display range value
without exceeding 5000 ppm, the full scale display range
value will be displayed but the actual gas reading at that time
will be recorded when you press and release POWER ENTER.
For example, if the display range is 500 ppm but the gas level
is 2300 ppm, the display will read 500 ppm but the instrument
will save a reading of 2300 ppm.
If the gas concentration exceeds 5000 ppm in the Base
0
500
ppm
ppm
LEAK CK MODE
CH4
BASE
To Next Page
Loading...
