Calibration - CareFusion Smoke Check Manual De Funcionamiento

In this case the display will show:
Gas
If this is displayed then turn the unit off, remove the mouthpiece
adapter, and expose to ambient air for 2 minutes before repeating
the test.
Note: If this warning appears again after following the above
procedure then turn off and leave the sensor exposed to ambient
air for a further 3 minutes. If the same message appears again then
this indicates possible contamination of the sensor with a solvent.
In this case remove all sources of solvent from the vicinity of the sensor
and expose to ambient air for 24 hours before switching on again.

Calibration

Calibration will remain stable to within 2% over one month and
typically to within 10% over 6 months. CareFusion supplies calibration
gas (20 ppm CO in air) and recommends that the unit is recalibrated
on a 6 monthly basis. See page 65 for calibration accessories.
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