RKI Instruments Gas Tracer - Manual (Page 230)

222 • Calibrating and Bump Testing the PPM Combustible Sensor Gas Tracer Op-
• To view the bump test gas reading press the AIR▲ or
(SHIFT)▼ button. You can scroll between the bump test results
and the bump test gas reading with the AIR▲ or (SHIFT)▼
buttons.
• To return to the BUMP screen in Calibration Mode, press
POWER ENTER.
If the sensor fails the bump test, see “Troubleshooting” on page 175
to investigate the cause of the failure and replace the failed sensor
if necessary.
• Disconnect the humidifier from the probe.
NOTE: Grasp the humidifier tube assembly by the clear tubing at the
end, not the humidifier tube itself.
8. When AUTO CAL in the BUMP--SET menu item in Maintenance
Mode is set to ON:
If the ppm combustible sensor passes the bump test,
• The following screen appears:
1000
ppm
MAINTENANCE
CH
4
BUMP
MAINTENANCE
BUMP
P
ppm
MAINTENANCE
CH
4
BUMP