Gas Tracer Operator’s Manual, CSA Version
Using Maintenance Mode • 117
NOTE:
The RKI Three Gas Cylinder typically contains 12% O
2
by volume. Be
sure to set the “OXY” reading to agree with the concentration listed on
the cylinder’s label, not zero.
16. Use the AIR
▲
or (SHIFT)
▼
button to select which sensor(s) you want to
calibrate, the standard 3 sensors or the %volume combustible gas sensor.
The following instructions illustrate calibrating the standard 3 sensors first,
then the %volume combustible gas sensor.
17. 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.
18. Connect the tubing from the demand flow regulator to the rigid tube on the
probe. Allow the gas to flow for one minute.
19. 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 159.
20. Disconnect the tubing from the probe.
21. Unscrew the demand flow regulator from the calibration cylinder.
0
20.9
0
%LEL
%
ppm
MAINTENANCE
CH
4
O
2
AUTO CAL
CO
%
MAINTENANCE
O
2
FAIL
