Teledyne GFC-7001T - Trace CO Analyzer - Manual (Page 172)

DAC and APICONTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 172
7.1.6. EDITING DAS PARAMETERS
Data parameters are types of data that may be measured and stored by the DAS. For
each analyzer model, the list of available data parameters is different, fully defined and
not customizable. Appendix A-5 lists firmware specific data parameters for the
GFC7001T/GFC7001TM. DAS parameters include things like CO concentration
measurements, temperatures of the various heaters placed around the analyzer, pressures
and flows of the pneumatic subsystem and other diagnostic measurements as well as
calibration data such as stability, slope and offset.
Most data parameters have associated measurement units, such as mV, ppb, cm³/min,
etc., although some parameters have no units (e.g. SLOPE). With the exception of
concentration readings, none of these units of measure can be changed. To change the
units of measure for concentration readings, see Section 5.4.4.
Note DAS does not keep track of the unit (e.g., PPM, PPB, etc.) of each
concentration value and DAS data files may contain concentrations in
more than one type of unit if the unit was changed during data
acquisition.