GX-2012 Operator’s Manual Calibration Mode • 61
then press the DISPLAY(ADJ) button and release both. The %LEL
sensor is shown here.
6. Use the AIRS and (SHIFT)T buttons to scroll through the sensors and
select the sensor whose calibration gas value you want to adjust.
7. Press and release the POWER ENTER button. The sensor’s calibration
gas value will flash.
8. If necessary, use the AIRS and (SHIFT)T buttons to set the correct
calibration gas value.
9. Press and release POWER ENTER button to save the change.
10. Repeat steps 6 through 9 to set the correct values for any additional
sensors.
11. After the last calibration gas value is set, use the AIRS button to scroll to
ESCAPE and press POWER ENTER to return to the calibration gas
values screens.
NOTE: The RKI Four Gas Cylinder typically contains 12% O
2
by volume.
Be sure to set the “OXY” reading to agree with the concentration
listed on the cylinder’s label, not zero.
12. Use the AIRS or (SHIFT)T button to select which sensor(s) you want to
calibrate, the standard 4 sensors or the %volume combustible gas sensor.
The following instructions illustrate calibrating the standard 4 sensors
first, then the %volume combustible gas sensor.
- - -
%LEL
MAINTENANCE
CH4
AUTO CAL
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