GX-2012 Operator’s Manual Leak Testing • 95
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.
4. The unit will display SAVED along the bottom of the screen before
continuing to the Peak Reading Screen.
5. Take the instrument to the monitoring area. The instrument will
retain and display the highest gas concentration encountered. To
save the peak reading, press and release the POWER ENTER
button. The reading on the screen (the highest concentration
encountered) will be saved.
NOTE: If the gas concentration exceeds the display range 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 Peak
Reading Screen, the instrument will go into an overscale
alarm. The full scale display range value will be displayed
and OVER will be recorded when you press POWER ENTER.
The unit will display SAVED along the bottom of the screen before
returning to the Station ID Select Screen.
To return to the Station ID Select Screen without taking a peak
reading, press and release the RESET SILENCE button.
6. Repeat steps 2 through 5 to take additional snap log data.
7. To exit Snap Log Mode at any time without taking a snap log or
0
500
ppm
ppm
LEAK CK MODE
CH4
PEAK
PEAK
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