Table of Contents
Advertisement
G100 Range
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
stabilises.
Note:
If using G110 – very high concentrations of CO
purge completely.
0.1
0.09
0.08
0.07
0.06
Gas
0.05
%
0.04
0.03
0.02
0.01
0
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
NO
, SO
or H
, unlike many other types of oxygen cell.
2
2
2
8.6
Error Due to CO
Due to the water trap and filter it is possible that some of the CO
absorbed in to any trapped water.
8.7
Hardware Reset
If for any reason the instrument 'locks up' and will not switch off, or the instrument
appears off and will not turn on, it is possible to force an emergency power off. Pressing
and holding the 'On/Off' key for 10 seconds will power off the instrument. Once this time
has elapsed, the instrument can be powered on as normal.
Note: Performing a hardware reset may cause loss or corruption of currently stored
data including the time/date.
Copyright Geotechnical Instruments (UK) Limited
Typical Zero Gas Purge Time
display reads 0.0%
Solubility in Water
2
may take up to 30 minutes to
2
w ait to Start Zero calibration
Time (mm:ss)
2
OMG100N1.21
, CO, H
2
in the sample gas will be
Page 39
S,
2
Advertisement
Table of Contents
