Technical data

1 Performance Tests and Calibration
Adjustments
38 34450A Service Guide
Capacitance gain adjustment procedure
Review the “Test Considerations” on page 5 and “Gain adjustment
considerations” on page 29 sections before beginning this procedure.
Calibration Mode: Capacitance
1 Apply the input signal shown in the Calibration Point Box.
2 Press to start the adjustment. The Status box displays
CALIBRATING indicates the calibration is in progress.
• Successful completion of each adjustment value is indicated by a
message in the Status box showing PASS.
• An adjustment failure is indicated by a message in the Status box
briefly showing FAIL. Check the input value, range, function, and
entered adjustment value to correct the problem and repeat the
adjustment step.
3 Repeat step 1 through 4 for each gain adjustment point shown in the
preset calibration point box.
4 Verify the Capacitance gain adjustments using the “Capacitance
performance verification test” on page 22.
Table 1-16 Capacitance gain adjustment
Input Function Range
1 mF, 10 mF Capacitance 10 mF
0.1 mF, 1 mF 1 mF
10 µF, 100 µF 100 µF
1 µF, 10 µF 10 µF
0.1 µF, 1 µF 1 µF
10 nF, 100 nF 100 nF
1 nF, 10 nF 10 nF
0.4 nF, 1 nF 1 nF
Input terminal open (remove any test leads or shorting plugs
from the input terminals)
Any