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OMG100N1.21
7.6
Last Field Calibration
This data can be found in the 'Information' screen accessed via the 'Utilities' menu. This
option displays the date that the last field calibration was perfomed on the instrument.
7.7
Calibration Record
The G100 instruments have the facility to log user calibrations via the 'Event Log'. This can
be used as an aid in ensuring that gas measurements are valid and accurate.
During calibration the instrument will record the following in the event log. For each entry
the time and date will be stored.
Event
Successful user zero CO
Successful user span CO
Successful user span O
Failed user zero CO
Failed user span CO
Failed user span O
Return to factory settings
Note: If the calibration failed, then try again using a longer purge time or different
target gas. This event log can only be downloaded and viewed via the optional
Analyser Data Manager software. It cannot be viewed on the analyser screen.
Page 34
Data Recorded
Type (N
2
Target Value, Readings before and after
2
Target Value, Readings before and after
2
Type (N
2
Target Value, Gas Reading
2
Target Value, Gas Reading
2
Copyright Geotechnical Instruments (UK) Limited
or Air) and Readings before and after
2
or Air) and Reading
2
G100 Range
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