Operation
Calibration
Thermo Scientific
49iQ Instruction Manual
3-11
The Calibrate Background screen is 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 Background
The Calibrate Background menu contains the following information:
●
Target Concentration:
Read only. Displays what the concentration value
will become when the calibrate button is pressed.
●
Current Background:
Read only. Displays what the current user-set
background is.
●
Calculated Background:
Read only. Displays what the current user-set
background will become when the calibrate button is pressed.
●
Calibrate:
When pressed, updates the background value, making the
concentration go to zero.
Calibrate
Background
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