CareFusion Smoke Check Meter, Operating Manual

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The sounder will beep and the display will flash three times as the
calibration is recorded. The ‘GAS’ legend will then be displayed.
Turn off the gas supply and the unit. When the cell has expired it
will be impossible to obtain a correct calibration and all the legends
and the three lights will flash five times with no beeps after the
calibration button is depressed. The ‘GAS’ legend will be displayed
as before and the unit must be turned off before recalibration is
attempted.
Important Notes:
•
Only certified calibration gas (20ppm) from a reputable source
should be used.
•
Ensure that no CO is present on the sensor for 3 minutes before
starting the calibration procedure.
•
Ensure that the instrument and gas cylinder have stabilised at
room temperature before calibrating.
•
Do not immerse the unit in the calibration gas.
•
In order to stop any gas leak from the can after calibration,
ensure that the control knob is tightened firmly.
Battery Life
Battery life is sufficient for approximately 8000 tests.
When the battery has approximately 1 hour of useful life left the
following message will be displayed:
Bat