Keysight U1251B Guia Del Usuario página 89

1 ms Peak Hold
The Peak Hold function allows the measurement of peak voltage for analysis of
components such as power distribution transformers and power factor correction
capacitors. The peak voltage obtained can be used to determine the crest factor:
Crest factor = Peak value/True RMS value
1 Press
2 Press
– If the reading is "OL", press
NOTE
– If you need to re-start the peak recording, press
3 Press and hold
4 According to the measurements shown in
Keysight U1251B and U1252B User's and Service Guide
for more than 1 second to toggle 1 ms Peak Hold mode ON / OFF.
to scroll through maximum and minimum peak readings.
MAX indicates the maximum peak, while
re-start the peak-recording measurement.
Factor will be 2.5048/1.768 =1.416.
to change the measuring range and to
or for more than 1 second to exit this mode.
Figure 3-6
Functions and Features
MIN indicates the minimum peak.
.
on page 88, the crest
3
87