Errors During Calibration And Recording The Measured Value - Honeywell Envitec MySignO Operating Manual

4.9.1

Errors during calibration and recording the measured value

The measured value fluctuates by more than 1% by vol. O
The sensor temperature must be the same as the ambient temperature
Avoid exposing the sensor to heat from hands
Observe the sensor's setting time specifications (see sensor label)
The sensor opening must be clean and dry
Mixing with ambient gasses during calibration
Internal electrical fault inside the unit
The unit does not show the expected measured value
The gas mixture calculations are wrong
The manometer is faulty
The unit has not been calibrated
The sensor temperature differs from the ambient temperature
Mixtures of ambient gasses
The oxygen sensor runs down while operating even when the unit is switched
off. If the unit no longer displays the 20.9% O
calibration or if the measured value does not make sense after checking all
other potential causes, replace the sensor.
Doc no.: 065-07-1001825_MySignO_GB-0.pdf / 12.11
Oxygen measuring device MySign
Possible cause:
2
Call your dealer!
Possible cause:
- or 100% O
2
®
O
values during
2
29