Automatic Zero Calibration (Co ) - Dräger X-node Technisches Handbuch

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Calibration
3. Wait until the stability criterion for calibration is met (see figure: the
"Zero-point calibration" button will be greyed out until the stability
criterion is met).
4. Press "Zero-point calibration" to set the zero point.
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5. Check whether the measured value shown corresponds to the
zero gas concentration.
6. Terminate the supply of zero gas.
6.3.1 Automatic zero calibration (CO
CO sensors provide an automatic zero calibration. It will be
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performed every 14400 measurements, corresponding to
approximately 10 days.
Technical manual
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