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4. DISPLAY MODES
4.1 Waveforms Mode
- Press on the display mode key
- The following screen is displayed:
■■
■■
■ Measurement of rms voltage on a three phase system:
Values measured for each curve every second (same colour),
according to the measurement type chosen with the variable
function keys ➁, situated directly below the screen.
The curves to be displayed are selected by pressing on the
keys:
- 3U displays the three phase-phase voltages of a three
phase system,
- 3V displays the three single voltages of a three phase
system,
- 3A displays the three phase currents of a three-wire, three
phase system,
The neutral current is not a direct measurement but
the resulting total of the 3 currents measured.
- L1, L2 and L3 respectively display the current and voltage
on phases 1, 2 and 3.
Instant values of signals at an instant “t”, at the intersection of
the cursor and the curves. The cursor is moved along the time
scale with the keys.
The measurement type is selected using the variable function keys ➁, located beneath the screen.
All these measurements are valid in 3U, 3V, 3A, L1, L2, L3
Important: The choice of curves to be displayed ( keys) depends on the type of connection (see § 3.1.5):
- 4-wire, three phase: 3U, 3V, 4A, L1, L2, L3
- 3-wire, three phase: 3U, 3V, 3A, L1, L2, L3
- Two-phase: 2V, 3A, L1, L2
- Single phase: No choice (L1)
This comment is valid for all display modes.
■ Measurement of phase to phase RMS voltages on the 3 phases
Selection of 3 V
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