Performance Tests and Calibration 4
34405A User’s and Service Guide 107
Capacitance Gain Adjustment Procedure
Review the “Test Considerations” on page 71 and “Gain
Adjustment Considerations” on page 95 sections before
beginning this procedure.
1 Press to enter Capacitance Gain Calibration.
2 The primary display will show the calibration value and
the secondary display will show the reference value of Cal
Item.
3 Configure each Cal Item shown in the adjustment table
below.
4 Use (Auto) or (Range) to select the Cal
Item.
5 Apply the input signal shown in the "Input" column of the
table.
6 Enter the actual applied input (see “Entering Adjustment
Values” on page 91).
7 Press to start the adjustment. The CAL
annunciator flashes to indicate the calibration is in
progress.
• Successful completion of each adjustment value is
indicated by a short beep and the primary display
briefly showing PASS.
NOTE
If the zero adjustment procedure has been recently performed prior to
Capacitance gain calibration procedures, the Cal Item 'Short' can be
neglected.
NOTE
Always complete tests in the same order as shown in the appropriate
table.
Disp
34405A users guide.book Page 107 Saturday, September 2, 2006 3:38 PM
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