15
5. KEY (Waveforms)
This key is used to display the current and voltage
curves and the measured values and values
calculated from the voltages and currents (except
power, energy, and harmonics).
5.1 Sub-menus available
These are listed in the screen shown below and
described individually in the sections that follow.
FO00
1 2 3 4 5
Figure 17: Example of display of Waveforms.
Item Sub-menus See
1. Display of the waveforms (current,
voltage) of the RMS value, of the
THD, and of the peak factor with time
displacement cursor.
5.2
2. Measurement of the maximum,
minimum, and mean values (RMS
over half-period) of the voltage and
current, and those of the positive and
negative instantaneous peaks of the
voltage and current.
5.3
3. Simultaneous display of all voltage
and current measurements (RMS,
DC, THD, CF, PST, KF, DF).
5.4
4. Determination of the phase order. 5.5
5. On-line help in this mode.
Note: in the case of a balanced three-phase
connection (selection in Configuration of Connection
/ Balanced three-phase, see § 4.7, page 11), a 3φ
symbol is displayed in the top bar of the screen. The
measurements displayed are then measurements of
the phase-to-phase voltage and the phase-to-earth
current.
FO98
Figure 18:
The 3
φ
sign at the top of the screen indicates
a balanced three-phase connection configuration.
Note: refer to § 15.3 on page 48 for details of the
display in the X mode Waveforms.
5.2 Waveforms
This function displays the waveforms (current,
voltage), the RMS value, the THD, and the peak
factor with time displacement cursor.
The information displayed is read as follows.
1 2 3 4 5
F01
6 7 8 9 10
Figure 19: The information of the Waveforms screen.
Item Function
1. Reminder of the mode used.
2. Instantaneous network frequency (measurement
range: 40Hz to 69 Hz).
3. RMS: RMS AC values of the phase-to-earth
voltage (600 V max) or of the phase-to-phase
voltage (660 V max) and of the current (6,500 A
max).
THD: Total harmonic distortion level.
CF: Peak factors.
4. Current date and time.
5. Battery charge level.
6. Axis of current and voltage values with automatic
scaling.
7. Display of waveforms (voltage and current).
8. Instantaneous measurement cursor displayed by
selection of the tool (item 10). The values
are available in the zone just below the curves
(item 9). The cursor is moved using the
key.
9. Instantaneous value of the signal at the
intersection of the cursor (item 8) and the
curves.
t: time since beginning of period.
V: instantaneous value of the voltage.
I: instantaneous value of the current.
(table continued on page 16)
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