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Background
Thermo Scientific
Calibrate
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.
Operation
Calibration
49iQ Instruction Manual
3-11
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