MI 2892 Power Master
Operating the instrument
32
I1, I2, I3, In
True effective value of current: I
1
,
I
2
,
I
3
,
I
N
Table 3.9: Keys in Scope screens
HOLD
Holds measurement on display.
RUN
Runs held measurement.
Selects which waveforms to show:
U
I U,I U/I
Shows voltage waveform.
U
I
U,I U/I
Shows current waveform.
U I
U,I
U/I
Shows voltage and current waveform (single graph).
U I U,I
U/I
Shows voltage and current waveform (dual graph).
Selects between phase, neutral, all-phases and line view:
1
2 3 N
Δ
Shows waveforms for phase L1.
1
2
3 N
Δ
Shows waveforms for phase L2.
1
2
3
N
Δ
Shows waveforms for phase L3.
1
2 3
N
Δ
Shows waveforms for neutral channel.
1
2 3 N
Δ
Shows all phase waveforms.
1
2 3 N
Δ
Shows all phase-to-phase waveforms.
12
23 31
Δ
Shows waveforms for phase L12.
12
23
31
Δ
Shows waveforms for phase L23.
12
23
31
Δ
Shows waveforms for phase L31.
12
23 31
Δ
Shows all phase waveforms.
METER
Switches to METER view.
SCOPE
Switches to SCOPE view.
TREND
Switches to TREND view (available only during recording).
Selects which waveform to zoom (only in U/I or U+I).
Sets vertical zoom.
Sets horizontal zoom.
Triggers Waveform snapshot.
Returns to the “MEASUREMENTS” submenu.
3.5.3
Trend
While GENERAL RECORDER is active, TREND view is available (see section 3.14 for instructions how to
start recorder).
Voltage and current trends
Current and voltage trends can be observed by cycling function key F4 (METER-SCOPE-TREND).
F1
F2
F3
F4
ENTER
