11
The plastic tubing supplied with the gas should be pushed
firmly over the reducing connector.
Turn the control knob fully counter-clockwise until knob
will not turn any further. Apply gas for 25 seconds and
then use the calibration button tool to depress the
calibration button.
The sounder will beep three times as the calibration is
recorded. The ‘GAS’ legend will 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
three (3) minutes before starting the calibration
procedure.
Ensure that the instrument and gas cylinder have
stabilized 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.
Summary of Contents for SmokeCheck
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