MI 2892 Power Master
Operating the instrument
34
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 while GENERAL RECORDER is active. See
section 3.14 for instructions how to start recorder. In order to fully understand meanings of particular
power parameter see sections 5.1.5.
3.6.1
Meter
By entering POWER option from Measurements submenu the tabular POWER (METER) screen is shown
(see figure below). Which measurement is present on display depends on following settings:
Power measurement method: IEEE 1459, Vector or Arithmetic
Connection type: 1W, 2W, 3W…
Selected VIEW: Combined, Fundamental or Nonfundamental
F2
F3
F4
