Gas Tracer Operator’s Manual, CSA Version
Using Maintenance Mode • 119
6. Press and release the POWER ENTER button to display the single calibration
menu. The %LEL sensor will be displayed first.
7. Use the AIR
▲
or (SHIFT)
▼
button to display the channel you want to calibrate
(in this example the combustible gas % LEL sensor). If you have a 5 sensor
unit, the %vol sensor will be one of the choices. It is shown below.
8. Press and release the POWER ENTER button. The single calibration screen
displays for the sensor you selected. The gas reading flashes.
9. Connect the tubing from the demand flow regulator to the rigid tube on the
probe. Allow the calibration gas to flow for one minute.
10. If necessary, use the AIR
▲
and (SHIFT)
▼
buttons to adjust the reading to
match the concentration listed on the calibration cylinder.
If the reading already matches the concentration listed on the calibration
cylinder, press and release the AIR
▲
button then press and release the
(SHIFT)
▼
button so that the instrument sees a change and resets the
calibration date.
- - -
%LEL
MAINTENANCE
CH
4
ONE CAL
- - -
vol%
MAINTENANCE
CH
4
ONE CAL
0
%LEL
MAINTENANCE
CH
4
ONE CAL