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Calibration
Manual Calibration
4-24
42iQTL Instruction Manual
Thermo Scientific
Home Screen>Calibration>Advanced Calibration>Manual
Calibration>Adjust Backgrounds>Adjust NO Background
The span coefficients are used to correct the NO, NO
2
, and NO
x
readings.
The NO and NO
x
span coefficient normally has a value near 1.000. The
NO
2
span coefficient normally has a value between 0.95 and 1.050.
The user can manually change the span coefficient by entering a value in
the Adjust Span Coefficient button. The second button called Adjusted
Concentration shows what the new concentration would be based on the
adjusted span coefficient. Press the Calibrate button to save the adjusted
span coefficient value. The NO, NO
2
, and NO
x
coefficient screens operate
the same way.
Home Screen>Calibration>Advanced Calibration>Manual
Calibration>Adjust Span Coefficients>Adjust NO Span Coefficient
(single range mode)
Adjust Span
Coefficient
Summary of Contents for 42iQTL
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