Hioki 8715-01, Instruction Manual

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3.5 Trigger Functions
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Trigger point
control
range
0 V
Measurement data
0 V
Previous Cycle (one cycle)
The control range is applied to this
cycle's waveform Input Waveform (one cycle)
This cycle is compared with
the previous cycle for
detection
3.5.5 Waveform Detection Trigger
The waveform detection trigger function compares the
measured signal with a pre-defined control waveform range,
and triggers if the signal deviates from the control range
voltage. The control range consists of a positive and
negative amplitude offset from either a standard sine wave
or the previous input cycle.
For purposes of creating a control range for a standard
waveform (either a sine wave or the previous cycle), one
cycle period is considered to begin at the positive-going 0-
volt crossing (positive 0 crossing).
(1) Sine Wave
The control range is based on a sine wave (with RMS
value voltage) at the mains frequency.
(2) Previous Cycle
The control range of each cycle is based on the previous
cycle of the input waveform. This selection is used
when gradual changes should not cause triggering.