Euro-Gas CO2-SS-20 Gebruikershandleiding - Pagina 10

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4. Calibration

IMPORTANT NOTE: Before each day of use, we recommend that the unit is
zeroed in air by following the "Calibrate in Air" procedure below.
ZERO CALIBRATION
The analyser can be calibrated in clean outside air or by using Nitrogen.
Calibrate in Air
IMPORTANT NOTE: It is essential to ensure that the unit is in clean air in an outdoor
environment before attempting an air calibration and ensure your exhaled breath does
not affect the procedure. Failure to adhere to these guidelines could result in an
incorrect calibration result.
- From the home screen, press
- Press
Calibrate in Air
- Press the
Pump
button and run the pump for 1 minute. When the reading has
stabilised, press
Calibrate
- Press the
Pump
button to switch off the pump.
- Press the
Back
button two times to return to the home screen.
Calibrate in Nitrogen
- From the home screen, press
- Press
Calibrate in Nitrogen
- Connect a Nitrogen source with pressure set no higher than 0.3L/min and press the
Pump
button.
- Run the pump for 90 seconds and when the reading has stabilised press
the unit will adjust the level to CO2 0.00%.
- Press the
Pump
button to switch off the pump.
- Press the
Back
button two times to return to the home screen.
Reference to Calibrated Gas
NOTE: There should be no need to Reference the analyser to a calibrated gas mixture
between service intervals but if you do wish to verify the calibration using a calibrated
gas mixture, it is essential to ensure that the unit is zeroed in clean air in an outdoor
environment before referencing. Ensure your exhaled breath does not affect the
procedure during the air calibration, as failure to adhere to these guidelines could result
in an incorrect calibration result.
- From the home screen, press
- Press
Reference to Calibrated Gas
- Connect a calibration gas supply with pressure set no higher than 0.3L/min and press
the
Pump
button.
- Enter the value of the calibration gas cylinder by using the
default value is 5.00 but this value can be adjusted to any level from 0-21%.
- Run the pump for 90 seconds and when the reading has stabilised, press
the unit will adjust the measured level to CO2 5.00%.
- Press the
Pump
button to switch off the pump.
- Press the
Back
button two times to return to the home screen.
Menu
and follow the on screen instructions.
and the unit will adjust the level to atmospheric CO2 0.04%.
Menu
and follow the on screen instructions.
Menu
and follow the on screen instructions.
Calibrate
Down
and
Up
buttons. The
Calibrate
and
and
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