MI 2883 Energy Master
Operating the instrument
29
Figure 3.11: U, I, f meter summary table screens
In those screens on-line voltage and current measurements are shown. Descriptions of
symbols and abbreviations used in this menu are shown in table below.
Table 3.6: Instrument screen symbols and abbreviations
RMS
UL
IL
True effective value U
Rms
and I
Rms
THD
ThdU
ThdI
Total harmonic distortion THD
U
and THD
I
CF
Crest factor CF
U
and CF
I
PEAK
Peak value U
Pk
and I
Pk
MAX
Maximal
U
Rms(1/2)
voltage and maximal
I
Rms(1/2)
current, measured
after RESET (key: F2)
MIN
Minimal
U
Rms(1/2)
voltage and minimal
I
Rms(1/2)
current, measured after
RESET (key: F2)
f
Frequency on reference channel
Note:
In case of overloading current or overvoltage on AD converter, icon
will be
displayed in the status bar of the instrument.
Table 3.7: Keys in Meter screens
HOLD
Holds measurement on display. Hold clock time will be
displayed in the right top corner.
RUN
Runs held measurement.
RESET
Resets MAX and MIN values (
U
Rms(1/2)
and
I
Rms(1/2)
).
1
2 3 N
Δ
Shows measurements for phase L1.
1
2
3 N
Δ
Shows measurements for phase L2.
1
2
3
N
Δ
Shows measurements for phase L3.
1
2 3
N
Δ
Shows measurements for neutral channel.
F1
F2
F3
