Teledyne GFC-7000T - Trace CO2 Analyzer - manual User Manual Page 195

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Calibration Procedures Model GFC7000TA Carbon Dioxide Analyzer
Teledyne Analytical Instruments 177
The default DAS configuration records all calibration values in channel CALDAT as well as all calibration
check (zero and span) values in its internal memory. Up to 200 data points are stored for up 4 years of
data (on weekly calibration checks) and a lifetime history of monthly calibrations. Review these data to
see if the zero and span responses change over time. These channels also store the STABIL value
(standard deviation of CO concentration) to evaluate if the analyzer response has properly leveled off
during the calibration procedure. Finally, the CALDAT channel also stores the converter efficiency for
review and documentation.
If your instrument has an O
2
sensor option installed that should be calibrated as well.
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