User Manual

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7. WAVEFORM
The Waveform key is used to display the current and voltage curves, along with the values measured and those calculated
from the voltages and currents (except for power, energy, and harmonics).
This is the screen that appears when the device is powered up.
Figure 52: Waveform mode screen
7.1. MEASUREMENT OF TRUE RMS VALUE
The RMS sub-menu displays the waveforms over one period of the signals measured and the true RMS voltage and current.
The choice of curves to be displayed depends on the type of connection (see §4.6):
 Single-phase, 2-wire: no choice (L1)
 Split-phase, 3-wire:
 For RMS, THD, CF, and : U, 2V, 2A, L1, L2
 For : 2V, 2A, L1, L2
 Three-phase, 3wire: 3U, 3A
 Three-phase, 4-wire: 3U, 3V, 3A, L1, L2, L3
 For RMS, THD, CF, and : 3U, 3V, 4A, L1, L2, L3
 For : 3U, 3V, 3A, L1, L2, L3
The screen snapshots shown as examples are those obtained with a three-phase 4-wire connection.
Measurement of the true RMS value
(see §7.1).
Measurement of total harmonic
distortion (see §7.2).
Measurement of the peak factor
(see §7.3).
Display of the maximum and mini-
mum RMS values and of the peak
values (see §7.4).
Simultaneous display of the follow-
ing measurements: RMS, DC, THD,
CF, PST, FHL and FK (see §7.5)
Display of the Fresnel diagram of the
signals (see §7.6).
Selection of the display filters. Use
the  or  key to select the display.