Low Frequency Flatness Verification - Keysight Technologies 33210A Service Manual

Low Frequency Flatness Verification

This procedure checks the AC amplitude flatness at 100 kHz using the reference
measurements recorded in the
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
2 Set the instrument to each output described in the table below and measure
Output Setup
Q
Q
Q
[a] Enter the measured value on the worksheet (page 67) as 100kHz_0dB_reference.
[b] Enter the measured value on the worksheet (page 67) as 1k00Hz_10dB_reference.
[c] Enter the measured value on the worksheet (page 67) 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
Keysight 33210A Service Guide
page 69.
the output voltage with the DMM. Press
High-Z. Be sure the output is enabled.
Keysight 33210A
Function
High Z Sine Wave
High Z Sine Wave
High Z Sine Wave
67). Complete the worksheet by making all the indicated calculations.
"Amplitude and Flatness Verification
Frequency Amplitude
100.000 kHz 670.0 mVrms
100.000 kHz 2.000 Vrms
100.000 kHz 7.000 Vrms
Calibration Procedures
Worksheet".
to set the output impedance to
Measurement
Nominal
[a]
± 0.0067 Vrms
0.670 Vrms
[b]
± 0.020 Vrms
2.000 Vrms
[c]
± 0.070 Vrms
7.000 Vrms
4
Error
71