MI 2892 Power Master
Operating the instrument
46
1
2 3 N
Shows harmonics / interharmonics components for phase L1.
1
2
3 N
Shows harmonics / interharmonics components for phase L2.
1
2
3
N
Shows harmonics / interharmonics components for phase L3.
1
2 3
N
Shows harmonics / interharmonics components for neutral channel.
1
2 3 N
Shows harmonics / interharmonics components for all phases on single
screen.
12
23 31
Δ
Shows harmonics / interharmonics components for phase L12.
12
23
31
Δ
Shows harmonics / interharmonics components for phase L23.
12
23
31
Δ
Shows harmonics / interharmonics components for phase L31.
12
23 31
Δ
Shows harmonics / interharmonics components for phase-to-phase
voltages.
METER
Switches to METER view.
BAR
Switches to BAR view.
AVG
Switches to AVG (average) view (available only during recording).
TREND
Switches to TREND view (available only during recording).
Shifts through harmonic / interharmonic components.
Triggers Waveform snapshot.
Returns to the “MEASUREMENTS” submenu.
3.8.2
Histogram (Bar)
Bar screen displays dual bar graphs. The upper bar graph shows instantaneous voltage harmonics and
the lower bar graph shows instantaneous current harmonics.
Figure 3.31: Harmonics histogram screen
Description of symbols and abbreviations used in BAR screens are shown in table below.
Table 3.24: Instrument screen symbols and abbreviations
Ux h01 … h50
Instantaneous voltage harmonic / interharmonic component in V
RMS
and in % of
fundamental voltage
F4
