User Manual

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7.3.3. THE 4A CF DISPLAY SCREEN
This screen displays the current waveforms of one period and the peak factors.
Figure 62: The 4A CF display screen
Note: L1, L2 and L3 display the current and voltage peak factors for phases 1, 2 and 3, respectively.
7.4. MEASUREMENT OF EXTREME AND MEAN VOLTAGE AND CURRENT
The sub-menu displays the one-second mean and half-cycle maximum and minimum RMS voltage and current and the in-
stantaneous positive and negative peak voltage and current.
Note: The MAX. and MIN. RMS measurements are calculated every half cycle (i.e. every 10 ms for a 50-Hz signal). The measure-
ments are refreshed every 250 ms.
The RMS measurements are calculated over one second.
7.4.1. THE 3U MAX.-MIN. DISPLAY SCREEN
This screen displays the one-second mean and half-cycle maximum and minimum RMS values and the positive and negative
phase-to-phase voltage peaks.
Peak factor for each curve.
Current axis with automatic scaling.
Instantaneous value cursor. Use the
 or  key to move the cursor.
Instantaneous values of the signals
at the position of the cursor.
t: time relative to the start of the
period.
A1: instantaneous current of phase 1.
A2: instantaneous current of phase 2.
A3: instantaneous current of phase 3.
AN: instantaneous value of the cur-
rent of the neutral.
Columns of values for each curve (1, 2, and 3).
MAX: maximum RMS phase-to-phase voltage since the switching on of the
device or since the last time the

key was pressed.
RMS: true RMS phase-to-phase voltage.
MIN: minimum RMS phase-to-phase voltage since the switching on of the device
or since the last time the

key was pressed.
PK+: maximum (positive) peak phase-to-phase voltage since the switching on
of the device or since the last time the

key was pressed.
PK-: minimum (negative) peak phase-to-phase voltage since the switching on of
the device or since the last time the

key was pressed.
Figure 63: The 3U Max.-Min. display screen