Manual Zero Sensors
You can zero a sensor by using the atmosphere to reset the sensor’s baseline reading. You can also apply inert purge gas to the manual calibration inlet to zero sensors.
Warning:
You must zero EXO’s sensors with clean air. If a sensor is zeroed where its targeted gas levels are abnormal, the gas levels EXO displays will not be accurate. Inaccurate readings are a safety hazard.
- Open the Main menu.
- Select Gas options.
- Select Zero sensors.
- Select Start zeroing.Note:
Do NOT apply gas.
A message displays to indicate when the zeroing is completed.
If you see a “Zero incomplete” message on EXO’s screen:
-
EXO may be in an environment with abnormal gas levels.
-
EXO’s cartridge may need to be replaced.
