Performance Tests and Calibration
4
34405A User’s and Service Guide
99
6
Enter the actual applied input (see
“Entering Adjustment Values”
on
page 86).
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
.
•
An adjustment failure is indicated by a long beep, the primary
display showing
FAiL
and a calibration error number appearing in
the secondary display. Check the input value, range, function, and
entered adjustment value to correct the problem and repeat the
adjustment step.
8
Repeat steps 3 through 7 for each gain adjustment point shown in the
table.
9
Verify the Frequency Gain adjustments using the
“Frequency Gain
Verification Test”
on page 76.
Capacitance Gain Adjustment Procedure
Review the
“Test Considerations”
on page 67 and
“Gain Adjustment
Considerations”
on page 90 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.
Table 20
Frequency Gain Adjustment
Input Voltage
Frequency
Function
Voltage as 1Vrms
Cal Item
1Vrms
1kHz
Frequency
1kHz
Disp
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