Low Frequency Flatness Verification - Keysight 33210A Service Manual

4
Output Setup
Q High Z
Q High Z
Q High Z
Chapter 4 Calibration Procedures

Low Frequency Flatness Verification

Low Frequency Flatness Verification
This procedure checks the AC amplitude flatness at 100 kHz using the
reference measurements recorded in the Amplitude and Flatness
Verification Worksheet. These measurements also establish an error
value used to set the power meter reference. The transfer measurements
are made at a frequency of 100 kHz using both the DMM and the power
meter.
1 Set the DMM to measure ac Volts. Connect the DMM as shown in the
figure on page 63.
2 Set the instrument to each output described in the table below and
measure the output voltage with the DMM. Press
impedance to High-Z. Be sure the output is enabled.
Keysight 33210A
Function Frequency
Sine Wave 100.000 kHz
Sine Wave 100.000 kHz
Sine Wave 100.000 kHz
1
Enter the measured value on the worksheet (page 61) as
100kHz_0dB_reference.
2
Enter the measured value on the worksheet (page 61) as
1k00Hz_10dB_reference.
3
Enter the measured value on the worksheet (page 61) as
100kHz_20dB_reference.
3 Compare the measured voltage to the test limits shown in the table.
4 You have now recorded all the required measurements on the worksheet
(page 61). Complete the worksheet by making all the indicated
calculations.
64
Amplitude Nominal
670.0 mVrms 0.670 Vrms
2.000 Vrms 2.000 Vrms
7.000 Vrms 7.000 Vrms
to set the output
Measurement
Error
1
± 0.0067 Vrms
2
± 0.020 Vrms
3
± 0.070 Vrms