67 • Calibrating a GX-2012
7.
You will be asked to confirm which GX-2012 channels will use GAS 1 for the
calibration. The gas concentration shown next to each channel is the auto
calibration value for that channel. If it does not match the gas concentration in
the cylinder(s), change the auto calibration value for that channel. See “Sensor
Tab” on page 165 for instructions. When using a 3-gas (no H
2
S channel) or a
4-gas (H
2
S channel included) cylinder, to calibrate a standard instrument,
select all channels. If your instrument has fewer than 4 channels, your screen
will only display the active channels. If your GX-2012 has a %volume
combustible gas sensor installed, leave it deselected in this screen.
Figure 49: Gas Cylinder Confirmation Screen
When all of the desired channels are selected, click OK. If you don’t want to
proceed, click Cancel to abort the calibration.
Standard 4-Gas Standard 4-Gas Plus %Volume
