GX-6000 Operator’s Manual Leak Testing • 210
button.
8. 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, “OVER” 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 “OVER” but the
instrument will save a reading of 2300 ppm.
If the gas concentration exceeds 5000 ppm in the Base Reading
Screen, the instrument will go into an overscale alarm. The full scale
display range value will be displayed but OVER will be recorded
when you press POWER/ENTER. The full scale display range value
will continue to be displayed in the Peak Reading Screen and OVER
will again be recorded when you press POWER/ENTER.
9. The unit will display SAVED before continuing to the Peak Reading
Screen.
10. Take the instrument to the monitoring area. The instrument will retain
and display the highest gas concentration encountered.
To return to the Station ID Select Screen without taking a peak reading,
press and release the RESET button.
To save the peak reading, press and release the POWER/ENTER button.
The reading on the screen (the highest concentration encountered) will
be saved.
4:07
CH4
F . S .
1000
ppm
5000
ppm
PEAK
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