Operation
Calibration
Thermo Scientific
42iQLS Instruction Manual
3-11
The Calibrate NO and NO
x
Background screens are used to calibrate the
instrument zero background. Before making an adjustment, be sure the
analyzer samples zero air for at least 5 minutes.
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>Calibrate NO Background
Home Screen>Calibration>Calibrate NO
x
Background
The Calibrate Background screen contains the following information:
●
Target NO Concentration:
Read only. Displays what the NO
concentration value will become when the calibrate button is pressed.
●
Current NO Concentration:
Read only. Displays what the current NO
concentration is.
●
Current NO Background:
Read only. Displays what the current user-set
NO background is.
Calibrate NO and NO
x
Background
Summary of Contents for 42iQLS
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