Calibration - VOLTCRAFT CO-100 Notice D'emploi

f) Calibration
Calibration was already performed by the manufacturer. nevertheless, you can perform
calibration again yourself.
Observe that new calibration only makes sense if a more precise value for calibration
is known to you!
• You have another, precisely calibrated CO
calibration yourself then.
• You are using the value of the average CO
outside, e.g. outside a building. However, strong deviations may occur depending on
environmental conditions (town, road, forest; industrial area, exhaust, etc.)! Usually, the
outside CO concentration is at 380-420ppm.
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Attention! The product will be damaged if it becomes damp or wet. The mains
adapter also poses fatal danger from electric shock!
• Let CO gas at a known concentration escape close to the gas measurement opening.
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Air currents and environmental conditions may, however, also cause strong deviations
here.
We therefore recommend leaving the manufacturer's calibration or only performing
calibration using another, precisely calibrated CO
CO concentration.
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Start calibration as follows:
• Briefly press the „MODE" button repeatedly (from the normal operating mode) until
„CALI" flashes on the display.
• Briefly press the button „ENTER"; the medium display line shows the calibration value
display.
• Set the calibration value with the arrows „" and „". The calibration value is the CO
measured value you want to use for calibration, see above.
• Keep the „MODE" button pressed for approx. 10 seconds. The display „CALIBRATING"
flashes at the bottom of the display. Calibration tapes approx. 3 minutes.
Important: Never breathe next to the CO
Avoid strong airstreams, do not move the CO
• After completion of calibration, the display indicates „PASS" (calibration successful) or
„FAIL" (calibration unsuccessful).
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meter. Of course, you can perform
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concentration present in the atmosphere
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meter or if you know the precise
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meter. Keep sufficient distance.
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meter.
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