Keysight U1271A - Capturing Peak Values (Peak); Figure 3-5 Peak Display

3Multimeter Features
Capturing Peak Values (Peak)
114 U1271A/U1272A User’s Guide
Capturing Peak Values (Peak)
This function allows the measurement of peak voltage for
analysis of such components as power distribution
transformers and power factor correction capacitors.
1 To activate the peak mode, press the key for more
than 1 second.
2 Press again to display the maximum (HoldMax) or
minimum (HoldMin) peak values along with their
respective time stamps.
Figure 3-5 Peak display
3 If (overload) is shown, press the key to change
the measurement range. This action will also restart the
recording session.
4 Press to restart the recording session without
changing the measurement range.
5 Press or for more than 1 second to disable the
Peak function.
When the peak value of the input signal goes below the
recorded minimum value or above the recorded maximum
value, the multimeter beeps and records the new value.
At the same time, the elapsed time since the peak recording
session was started is stored as the recorded value’s time
stamp.
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NOTE
The APO (auto power-off) function is disabled when Peak is enabled.