MI 2892 Power Master
Operating the instrument
31
1
2 3 N
Δ
Shows measurements for all phase to phase voltages.
12
23 31
Δ
Shows measurements for phase to phase voltage L12.
12
23
31
Δ
Shows measurements for phase to phase voltage L23.
12
23
31
Δ
Shows measurements for phase to phase voltage L31.
12
23 31
Δ
Shows measurements for all phase to phase voltages.
METER
Switches to METER view.
SCOPE
Switches to SCOPE view.
TREND
Switches to TREND view (available only during recording).
Triggers Waveform snapshot.
Returns to the “MEASUREMENTS” submenu.
3.5.2
Scope
Various combinations of voltage and current waveforms can be displayed on the instrument, as shown
below.
Figure 3.12: Voltage only waveform
Figure 3.13: Current only waveform
Figure 3.14: Voltage and current waveform (single
mode)
Figure 3.15: Voltage and current waveform (dual
mode)
Table 3.8: Instrument screen symbols and abbreviations
U1, U2, U3, Un
True effective value of phase voltage: U
1
,
U
2
,
U
3
,
U
N
U12, U23, U31
True effective value of phase-to-phase (line) voltage: U
12
,
U
23
,
U
31
F4
