Technical data

1 Performance Tests and Calibration
Adjustments
34 34450A Service Guide
• An adjustment failure is indicated by a message in the Status box
showing FAIL. Check the input value, range, function, and entered
adjustment value to correct the problem and repeat the adjustment
step.
5 Repeat step 1 through 4 for each gain adjustment point shown in the
preset calibration point box.
6 When the calibration has been completed for the selected range, the
status box shows DONE, and the value in the Calibration Range box
flashes.
7 Increase the range and continue the calibration by repeating steps 1
through 4.
8 Verify the AC voltage gain adjustments using the “AC voltage
verification test” on page 17.
Table 1-13 AC voltage gain adjustment
Input Instrument Settings
Vrms Frequency Function Range Cal Item
Shorting plugs between 2 terminals AC voltage Any DC Offset
1 × Full Scale
200 V
1 kHz
1 kHz
100 mV to 100 V
750 V
FLATNESS 1 kHz
[1]
1 × Full Scale
200 V
10 kHz
10 kHz
100 mV to 100 V
750 V
FLATNESS 10 kHz
10 mV, 70 mV, 100 mV 1kHz 100 mV
0.1 V, 0.7 V, 1 V 1kHz 1 V
1 V, 7 V, 10 V 1kHz 10 V
10 V, 70 V, 100 V 1kHz 100 V
75 V, 200 V, 750 V 1kHz 750 V
Caution: Set the calibrator output to 0 V before disconnecting from the multimeter input terminals.
[1] AC voltage flatness calibration for 1 kHz and 10 kHz need to completed for one range (example 100 mV) first before
proceeding to another range (example 1 V).