Gas Tracer Operator’s Manual, CSA Version
Calibration Mode • 77
2. Press and release the POWER ENTER button. The display will indicate that
the ppm sensor is warming up.
Performing a PPM Fresh Air Adjustment
This section describes how to perform a fresh air adjustment on the PPM
combustible gas sensor.
1. Once the warm up is complete, you will be in PPM Cal Mode and AIR CAL
will be displayed. You must perform a fresh air adjust before performing an
auto calibration, a single calibration, or a bump test.
2. Be sure the Gas Tracer is in a fresh air environment.
3. Press and release the POWER ENTER button to enter the AIR CAL menu item.
4. Allow the instrument to draw fresh air for 2 minutes.
30
MAINTENANCE
sec
WARM UP
MAINTENANCE
AIR CAL
50
ppm
MAINTENANCE
CH
4
PUSH AIR
