Chapter 4 Calibration Procedures

Optional Performance Verification Tests

Optional Performance Verification Tests

These tests are not intended to be performed with every calibration. They are provided as an aid for verifying additional instrument specifications.

Square Wave Duty Cycle Verification

This test verifies the duty cycle specification of the squarewave output.

Select each function generator output in the table below. Use an integrating DMM to measure the Vdc output of the function generator. Compare the measured results to the test limits shown in the table. This is a HIGH Z output termination test.

 

Agilent 33120A

 

 

Measurement

 

 

 

 

 

 

 

Function

OUT 1

Ampl

Freq

Duty

Nominal

Error

TERM

Cycle

 

 

 

 

 

Square wave

HIGH Z

1.0 Vrms

300.00 Hz

50%

0.00 Vdc

0.020 Vdc

 

 

 

 

 

 

 

Square wave

HIGH Z

1.0 Vrms

300.00 Hz

25%

- 0.50 Vdc

0.020 Vdc

 

 

 

 

 

 

 

Square wave

HIGH Z

1.0 Vrms

300.00 Hz

75%

+ 0.50 Vdc

0.020 Vdc

 

 

 

 

 

 

 

The DMM used for this test must be an integrating multimeter. If the first step does not measure 0 Vdc, use an oscilloscope for this test.

Do not use an auto-ranging function on the DMM for this test. Fix the DMM measurement range at 10 Vdc.

1Output termination set using front panel controls. HIGH Z assumes no load on output. 50W assumes a 50W – 0.1W load on output.

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Agilent Technologies 33120A manual Optional Performance Verification Tests, Square Wave Duty Cycle Verification