MI 2883 Energy Master
Operating the instrument
33
Table 3.10: Instrument screen symbols and abbreviations
U1, U2, U3,
U12, U23,
U31
Maximal ( ), average ( ) and minimal ( ) value of phase RMS voltage
U
1
, U
2
, U
3
or line voltage U
12
, U
23
, U
31
for time interval (IP) selected by
cursor.
I1, I2, I3, In
Maximal ( ), average ( ) and minimal ( ) value of current I
1
,
I
2
, I
3
, I
N
for time interval (IP) selected by cursor.
f
Maximal ( ), active average ( ) and minimal ( ) value of frequency at
synchronization channel for time interval (IP) selected by cursor.
10.May.2013
12:02:00
Timestamp of interval (IP) selected by cursor.
32m 00s
Current GENERAL RECORDER time
(d - days, h - hours, m - minutes, s - seconds)
Table 3.11: Keys in Trend screens
Selects between the following options:
U
I f U,I U/I
Shows voltage trend.
U
I
f U,I U/I
Shows current trend.
U I
f
U,I U/I
Shows frequency trend.
U I f
U,I
U/I
Shows voltage and current trend (single mode).
U I f U,I
U/I
Shows voltage and current trend (dual mode).
Selects between phases, neutral channel, all-phases view:
1
2 3 N
Shows trend for phase L1.
1
2
3 N
Shows trend for phase L2.
1
2
3
N
Shows trend for phase L3.
1
2 3
N
Shows trend for neutral channel.
1
2 3 N
Shows all phases trends.
12
23 31
Δ
Shows trend for phases L12.
12
23
31
Δ
Shows trend for phases L23.
12
23
31
Δ
Shows trend for phases L31.
12
23 31
Δ
Shows all phase-to-phase trends.
METER
Switches to METER view.
SCOPE
Switches to SCOPE view.
TREND
Switches to TREND view.
Moves cursor and selects time interval (IP) for observation.
Returns to
the “MEASUREMENTS” submenu.
3.6 Power
In POWER screens instrument shows measured power parameters. Results can be
seen in a tabular (METER) or a graphical form (TREND). TREND view is active only
F2
F3
F4
