Battery Life - CareFusion Smoke Check Manuel D'utilisation

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.
 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 2000 tests.
When the battery has approximately 1 hour of useful life left the
following message will be displayed:
and the alarm will sound momentarily after the unit is first switched
on. When the battery has completely expired the above will be
displayed continuously and the battery must be replaced.
Bat
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