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Teledyne API M100E Analyzer Operation Manual Calibration Procedures
189
With dynamic calibration turned on, the state of the internal setup variables DYN_SPAN and DYN_ZERO is set
to ON and the instrument will reset the slope and offset values for the SO
2
response each time the AutoCal
program runs. This continuous re-adjustment of calibration parameters can often mask subtle fault conditions in
the analyzer. It is recommended that, if dynamic calibration is enabled, the analyzer’s test functions, slope and
offset values be checked frequently to assure high quality and accurate data from the instrument.
8.9. CALIBRATION QUALITY
After completing one of the calibration procedures described above, it is important to evaluate the analyzer’s
calibration SLOPE and OFFSET parameters. These values describe the linear response curve of the analyzer.
The values for these terms, both individually and relative to each other, indicate the quality of the calibration. To
perform this quality evaluation, you will need to record the values of both test functions (refer to Section 6.2.1 or
Appendix A-3
)
, all of which are automatically stored in the iDAS channel CALDAT for data analysis,
documentation and archival.
Ensure that these parameters are within the limits listed in the following Table.
Table 8-5: Calibration Data Quality Evaluation
FUNCTION MINIMUM VALUE OPTIMUM VALUE MAXIMUM VALUE
SLOPE
-0.700 1.000 1.300
OFFS
50.0 mV n/a 250.0 mV
These values should not be significantly different from the values recorded on the Teledyne API Final Tes
t
and Validation Data sheet that was shipped with your instrument. If they are, refer to the troubleshooting
Chapter12.
8.10. CALIBRATION OF OPTIONAL SENSORS
8.10.1. O
2
SENSOR CALIBRATION PROCEDURE
8.10.1.1. O
2
CALIBRATION SETUP
The pneumatic connections for calibrating are as follows:
Figure 8-13: O
2
Sensor Calibration Set Up
04515F DCN6048