Chapter 3 Operation
3-22
Calibrate Zero
The Calibrate Zero screen, shown below, is used to perform a zero calibration. Be
sure the analyzer samples zero air until stable readings are obtained. The first line
of the display shows the current CO reading. For more information about the CO
background, see “CO Background Correction,” earlier in this chapter.
To display the Calibrate Zero screen:
From the Main Menu choose Calibration
From the Calibration menu choose Calibrate Zero
To use the Calibrate Zero screen:
Press
ENTER
to set the CO reading to zero
Press
MENU
to return to the Calibration menu
Press
RUN
to return to the Run screen
Zero Calibration Screen
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