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Measurement
53
Cal menu
Calibration menu allows you to perform zero and span calibration of the detector.
As a rule of thumb, zero calibration and span calibration should be performed once a month.
Entering the cal menu
Calibration menu can be opened by pressing down CAL in the measurement mode or
selected in the hold mode.
This section describes the method of entering the cal menu from the hold mode.
1.
In the meas mode, hold down HOLD until the HOLD indicator turns ON.
2.
Press
/
to display “CAL” on the main display.
3.
Press ENT.
4.
Press
/
to display a desired item on the sub display.
5.
Press ENT.
Cal menu
An external valve is required
for automatic zero calibration.
Display of various calibration
types
Hold mode
Meas mode
Hold down HOLD
or
Hold down ESC
Hold down HOLD
Changes
the value
Determines
the value
Cancels
the value