RKI Instruments Gas Tracer - Manual (Page 75)

Gas Tracer Operator’s Manual Calibration Mode • 67
13.With the 3-gas calibration values screen displayed, press the
POWER ENTER button. AUTO CAL begins to flash and the
current gas readings are 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 tubing from the demand flow regulator to the rigid
tube on the probe. Allow the gas to flow for one minute.
15.Press and release the POWER ENTER button to set the calibration
to the programmed values.
If all channels passed calibration, PASS displays along the bottom
of the screen, then the calibration menu displays.
If any of the sensors cannot calibrate to the proper value, FAIL
displays along the bottom of the screen and the Gas Tracer lists the
sensor(s) that failed to calibrate. In the example below, the OXY
channel failed calibration. The other sensors calibrated normally.
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 calibration menu. Attempt to calibrate again. If
the failure continues, investigate the cause. See “Troubleshooting”
on page 175.
16.Disconnect the tubing from the probe.
17.Unscrew the demand flow regulator from the calibration cylinder.
18.If you have a 5 sensor unit and wish to calibrate the %volume
sensor, go back to step 1 and repeat the process selecting the
0
20.9
0
%LEL
%
ppm
MAINTENANCE
CH
4
O 2
AUTO CAL
CO
%
MAINTENANCE
O
2
FAIL