6.5 Detecting Transients and Waveform Distortion
92
Quick Start Manual
8.
Viewing measurement data
Checking recording conditions with the fluctuation graph
VOLTAGE
The vertical and horizontal scales of the fluctuation graph change auto
matically during recording.
If you want to change the vertical scale, you can do so while recording
is in progress; however, you must first stop recording if you want to
change the horizontal scale.
Voltage fluctuation display items are sampled at 256 points per cycle,
and are calculated without any gaps for one wave shifted over half a
wave. You can record MAX and MIN values calculated every 200 ms
over the set interval (including RMS voltage data every half wave).
Example: When the interval is set to 1 s:
The MAX and MIN values are recorded from 100 points of half wave voltage data.
(At 50 Hz.)
You can confirm the contents of settings (SYSTEM-DF2) and wave-
form display (VIEW-DF1/2/3/4) during recording, but you cannot
change them.
When you want to change the settings, you must stop recording first.
Recording start time
Shows the MAX and
MIN real-time values.
The MAX and MIN val-
ues are recorded to-
gether. Records the
voltage for CH1, CH2,
and CH3 using three-
phase 4-wire settings.
CH1: red
CH2: Yellow
CH3: Blue
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