RKI Instruments Gas Tracer - Manual (Page 91)

Gas Tracer Operator’s Manual Calibration Mode • 83
13.With the calibration gas value screen displayed, press the POWER
ENTER button. AUTO CAL begins to flash and the current gas
reading is displayed. If you want to exit back to the main menu
without completing a calibration, press and release the DISPLAY
(ADJ) button.
14.Connect the humidifier from the demand flow regulator to the
rigid tube on the probe. Allow the gas to flow for two minutes.
15.Press and release the POWER ENTER button to set the calibration
to the programmed values.
If the ppm sensor passed calibration, PASS displays along the
bottom of the screen, then the AUTO CAL menu item displays.
If the ppm sensor cannot calibrate to the proper value, FAIL
displays along the bottom of the screen and the Gas Tracer
indicates that the ppm sensor failed to calibrate.
The buzzer and alarm lights activate. Press and release the RESET
SILENCE button after the buzzer and lights stop to reset the alarm
and return to the AUTO CAL menu item. Attempt to calibrate
again. If the failure continues, investigate the cause. See
“Troubleshooting” on page 175.
16.Disconnect the humidifier from the probe.
NOTE: Grasp the humidifier tube assembly by the clear tubing at the
end, not the humidifier tube itself.
17.Unscrew the demand flow regulator from the calibration cylinder.
0
ppm
MAINTENANCE
CH
4
AUTO CAL
ppm
MAINTENANCE
CH
4
FAIL