Thermo Scientific 42iQHL Instruction Manual page 56

Operation
Calibration
Adjust NO, NO
Span Coefficients
3-28 42iQHL Instruction Manual
, and NO The Adjust NO, NO
2 x
manually adjust the coefficient and enter the span concentration. The NO
span coefficient is calculated, stored, and used to correct the current
reading. All calibration screens function the same way. Therefore, the
following example of the NO screen applies to the NO
calibration screens as well.
The following screen is shown in single range mode and dual or auto range
mode. In dual or auto range modes, "High Range" or "Low Range" is
displayed to indicate the calibration of the high or low coefficient. The
Adjust High Range NO Span Coefficient and Adjust Low Range NO Span
Coefficient screens function the same way.
It is important to note the averaging time when calibrating. The longer the
averaging time the more precise the calibration results. To achieve
maximum precision, allow the instrument to stabilize each time input gas is
changed and set the averaging time to 300-second averaging.
Home Screen>Calibration>Advanced Calibration>Manual
Calibration>Adjust Span Coefficients>Adjust NO Span Coefficient
(single range mode)
, and NO Span Coefficient screens are used to
2 x
and NO
2 x
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