G100 Range OMG100N1.17
Copyright 2009 LANDTEC North America, Inc., DBA VIASENSOR Page 41
Typical Calibration Purge Times
Typical zero calibration although displaying zero needs to be given time to settle. We
recommend commencing the calibration at least five minutes after the display concentration
stabilizes.
Note: If using G110 – very high concentrations of CO
2
may take up to 30 minutes to
purge completely.
8.5 Cross-Gas Effects
Carbon dioxide is measured by infrared absorption at a wavelength specific to carbon
dioxide. Therefore, the carbon dioxide reading will not be affected by any other gases. The
oxygen sensor is a galvanic cell type and suffers virtually no influence from CO
2
, CO, H
2
S,
NO
2
, SO
2
or H
2
, unlike many other types of oxygen cell.
8.6 Error Due to CO
2
Solubility in Water
Due to the water trap and filter it is possible that some of the CO
2
in the sample gas will be
absorbed in to any trapped water.
8.7 Hardware Reset
If for any reason the instrument ‘locks up’ and will not switch off, it is possible to force a
hardware reset. Press and hold the ‘On/Off’ key for 10 seconds; wait at least 15 seconds
and the instrument should restart automatically.
Note: Performing a hardware reset may cause loss or corruption of currently stored
data including the time/date.
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