RKI Instruments GX-2012 Manual - Manual (Page 182)

174 • Bump Testing GX-2012 Operator’s Manual
13. Open the hose clamp and connect the tubing from the filled gas bag to the
rigid tube on the probe and quickly press and release the POWER
ENTER button. The unit will begin counting down from 30.
14. 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 buttons.
• 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
CH
4
O
2
BUMP
CO
H
2
S
5
12.0
10
25.0
%LEL
%
ppm
ppm
MAINTENANCE
CH
4
O
2
BUMP
CO
H
2
S
MAINTENANCE
BUMP