Calibration
Manual Calibration
Thermo Scientific
42iQLS Instruction Manual
4-23
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)
Home Screen> Calibration>Advanced Calibration>Manual
Calibration>Adjust Coefficients> Adjust High Range NO Span
Coefficient (dual or auto range mode)
The Reset Bkg to 0.000 and Span Coef to 1.000 screen allows the user to
reset the calibration configuration values to factory defaults.
Adjust Span
Coefficient
Reset Bkg to 0.000
and Span Coef to
1.000
Summary of Contents for 42iQLS
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