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Running the Test - 4
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value of the waveform by a one-shot rms current value obtained from the waveform data record.
The quality of this measurement is a function of the variability of the current waveform crest
factor over the integration period used for the corresponding rms current measurement.
ñ VA, and Power Factor measurements are made by using rms and average results in calculations
One-shot measurements are based on the acquisition of a single snapshot measurement, which is
acquired from a single acquisition buffer of 4096 data points. The number of cycles of the mains
frequency is determined by the mains frequency selection in the Standard Test Setup window, and the
measurement window selection in the Advanced Test Setup window. Refer to the discussion of the
MEAS:ARRAY:CURR:HARM command in Appendix C for details about the sample rate based on the
aforementioned selections. Note that one-shot measurements are not affected by test duration time.
To Run a Test
1. Select the Test menu tab on the bottom of the screen to access the Test window. Note that you
can also access the Test window from the View menu.
2. You can instruct the Agilent 14761A HFTS software to save the test data in a read-only file.
Selecting this option will permit subsequent review and analysis of the test results, but will
prevent running a new test that will overwrite the test data. This action may be taken after the
test is run by using the Lock Test File command in the File menu.