Instruction Manual

GX-2012 Operator’s Manual Calibration Mode • 69
10. When AUTO CAL in the BUMP--SET menu item in Maintenance Mode
is set to OFF:
• The instrument will indicate which channels passed or failed the
bump test with a P (pass) or an F (fail) to the right of the gas.
• To view the bump test gas readings press the AIRS or (SHIFT)T
button. You can scroll between the bump test results and the bump
test gas readings with the AIRS or (SHIFT)T button.
• To return to the BUMP screen in Calibration Mode, press POWER
ENTER.
If one or more sensors fail the bump test, see “Troubleshooting” on
page 143 to investigate the cause of the failure and replace the failed
sensor or sensors if necessary.
• Disconnect the tubing from the probe.
F
P
F
P
%LEL
%
ppm
ppm
MAINTENANCE
CH4
O2
BUMP
CO
H2S
5
12.0
10
25.0
%LEL
%
ppm
ppm
MAINTENANCE
CH4
O2
BUMP
CO
H2S
MAINTENANCE
BUMP