Configuration
38 Power Analyzer NORMA 4000, NORMA 5000
EO1111G REV G
If you want to measure a numeric time based mean values like
rms, rectified mean, mean…you do not need to take care about
Shannon’s theorem. For the precision of the results only the
number of samples is important, not the sampling frequency
(average time >> cycle duration). But you have to consider that the
sampling signal must be statistical independent, that means the
sampling frequency must not be close or a multiple of the signal
frequency.
Note
To work in the “undersampling mode” the anti-aliasing filter has to
be turned OFF at the current and voltage channel (see chapter 7.6
“Configure current and voltage channels“ page: 30).
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