DATATEC EDU34450A Guia Del Usuario página 107

This gives an immediate impression of the high-frequency content by identifying where this crossing occurs as a
function of crest factor:
The table below shows the typical errors for various pulse waveforms as a function of input pulse frequency:
prf
200
1000
2000
5000
10000
20000
50000
100000
The table above gives an additional error for each waveform, to be added to the value from the accuracy table
provided in the Keysight EDU34450A Datasheet.
Example: A pulse train with level 1 Vrms, is measured on the 1 V range. It has pulse heights of 3 V (that is, a Crest
Factor of 3) and duration 111 μs. The prf can be calculated to be 1000 Hz, as follows:
Thus, from the table above, this AC waveform can be measured with 0.18 percent additional error.
Keysight EDU34450A User's Guide
Typical Error for Square Wave, Triangular Wave, and Pulse Trains of CF = 3, 5, or 10
Square Wave Triangle Wave
–0.02% 0.00%
–0.07% 0.00%
–0.14% 0.00%
–0.34% 0.00%
–0.68% 0.00%
–1.28% 0.00%
–3.41% –0.04%
–5.10% –0.12%
CF = 3 CF = 5
–0.04% –0.09%
–0.18% –0.44%
–0.34% –0.88%
–0.84% –2.29%
–1.75% –4.94%
–3.07% –8.20%
–6.75% –32.2%
–21.8% –50.6%
CF = 10
–0.34%
–1.71%
–3.52%
–8.34%
–26.00%
–45.70%
–65.30%
–75.40%
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