Calibration - CareFusion Smoke Check Manual De Funcionamiento

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 (20ppm CO in air) and recommends that the unit is recalibrated on
a 6 monthly basis. See page 33 for calibration accessories.
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