Table 7-5: Calibration Data Quality Evaluation - Teledyne 200E Instruction Manual

Model 200E Instruction Manual
perform this quality evaluation, you will need to record the values of the following test
functions (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.
• NO OFFS
• NO SLOPE
• NOX OFFS
• NOX SLOPE
Make sure that these parameters are within the limits listed in Table 7-5 and frequently
compare them to those values on the Final Test and Checkout Sheet that came attached to
your manual, which should not be significantly different. If they are, refer to the trouble-
shooting Chapter 11.
Table 7-5:
Function
NOX SLOPE
NO SLOPE
NOX OFFS
NO OFFS
The default iDAS 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 figure (standard deviation of NO
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.
044100102 Rev A
Calibration Data Quality Evaluation
Minimum Value
-0.700
-0.700
-20.0 mV
-20.0 mV
Calibration Procedures
Optimum Value
1.000
1.000
0.0 mV
0.0 mV
Maximum Value
1.300
1.300
150.0 mV
150.0 mV
concentration)
X
125