104 34405A User’s and Service Guide
4 Performance Tests and Calibration
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.
• 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 Ohm Gain adjustments using the “Ohms Gain
Verification Test” on page 80.
NOTE
If the zero adjustment procedure has been recently performed prior to the
ohms gain calibration procedure, the Cal Items Short and Open can be
skipped.
NOTE
Always complete tests in the same order as shown in the appropriate
table.
Disp
34405A users guide.book Page 104 Saturday, September 2, 2006 3:38 PM
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