Functions and Features 3
Keysight U1253B User’s and Service Guide 95
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:
(3)
1 Press for more than 1 second to toggle 1 ms Peak Hold mode ON and OFF.
2 Press to switch between maximum and minimum peak readings.
indicates maximum peak, while indicates minimum peak.
3 Press and hold or for more than 1 second to exit this mode.
4 In the measurement example shown in Figure 3-7 on page 96, the crest factor
will be 2.2669/1.6032 = 1.414.
Crest factor
Peak value
True RMS value
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–If the reading is “OL”, press to change the measurement range and to
restart peak-recording measurement.
– If you need to restart peak recording without changing the range, press .
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