63
Chapter 4 Calibration Procedures
AC Amplitude (high-impedance) Verification
4
AC Amplitude (high-impedance) Verification
This procedure checks the ac amplitude output accuracy at a frequency
of 1 kHz, and establishes reference measurements for the higher
frequency flatness verification procedures.
1 Set the DMM to measure Vrms Volts. Connect the DMM as shown below.
2 Set the instrument to each output described in the table below and
measure the output voltage with the DMM. Press to set the output
impedance to High–Z. Be sure the output is enabled.
1
Enter the measured value on the worksheet (page 61) as 1kHz_0dB_reference.
2
Enter the measured value on the worksheet (page 61) as 1kHz_10dB_reference.
3
Enter the measured value on the worksheet (page 61) as 1kHz_20dB_reference.
4
Based upon 1% of setting ±1 mVpp (50 Ω); converted to Vrms for High–Z.
3 Compare the measured voltage to the test limits shown in the table.
Keysight 33210A
Measurement
Output Setup Function Frequency Amplitude Nominal Error
4
Q High Z Sine Wave 1.000 kHz 20.0 mVrms 0.020 Vrms ± 0.00091 Vrms
Q High Z Sine Wave 1.000 kHz 67.0 mVrms 0.067 Vrms ± 0.00138 Vrms
Q High Z Sine Wave 1.000 kHz 200.0 mVrms 0.200 Vrms ± 0.00271 Vrms
Q High Z Sine Wave 1.000 kHz 670.0 mVrms 0.670 Vrms
1
± 0.00741 Vrms
Q High Z Sine Wave 1.000 kHz 2.000 Vrms 2.0000 Vrms
2
± 0.0207 Vrms
Q High Z Sine Wave 1.000 kHz 7.000 Vrms 7.000 Vrms
3
± 0.0707 Vrms
Q High Z Square Wave
4
1.000 kHz 900.0 mVrms 0.900 Vrms ± 0.0100 Vrms
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