82 • Chapter 4: Calibration Mode
GX-6000 Operator’s Manual
Calibrating Using the Single
Calibration Method
Single Calibration allows you to calibrate one channel at a time. This is useful if you only
want to calibrate one or two channels.
Setting the Fresh Air Reading
1 . While in the Calibration Mode Screen, move the cursor to the
AIR CAL
menu item
by using the SHIFT
▼
(PANIC) button.
2 . Press and release the POWER/ENTER button. The Fresh Air Reading Screen will be
displayed.
3 . If you suspect any low-level VOC background in the area, you will need to use the
VOC zero filter.
NOTE:
If you have both a PID and a CO
2
sensor installed, you will need to follow the
directions in “Performing a Demand Zero for Instruments with a Carbon
Dioxide Sensor and a PID Sensor” on page 203 instead of following the
directions shown below.
a. Remove the plug from each end of the VOC zero filter.
b. Attach the VOC zero filter to the inlet fitting or probe. The filter does not have a
preferred flow direction.
CAL
CAL MODE
AIR CAL
AUTO CAL
SINGLE CAL
NORMAL MODE
AIR
CH4 O2
%LEL %
H2S CO
ppm ppm
VOC
ppm
0 20.9
0.0 0
0