MI 2892 Power Master
Operating the instrument
52
Figure 3.34: Flickers table screen
Description of symbols and abbreviations used in METER screen is shown in table below. Note that
Flickers measurement intervals are synchronised to real time clock, and therefore refreshed on minute,
10 minutes and 2 hours intervals.
Table 3.30: Instrument screen symbols and abbreviations
Urms
True effective value U
1
, U
2
, U
3
, U
12
, U
23
, U
31
Pinst,max
Maximal instantaneous flicker for each phase refreshed each 10 seconds
Pst(1min)
Short term (1 min) flicker P
st1min
for each phase measured in last minute
Pst
Short term (10 min) flicker P
st
for each phase measured in last 10 minutes
Plt
Long term flicker (2h) P
st
for each phase measured in last 2 hours
Table 3.31: Keys in Flickers (METER) screen
HOLD
Holds measurement on display. Hold clock time will be displayed in the
right top corner.
RUN
Runs held measurement.
METER
Switches to METER view.
TREND
Switches to TREND view (available only during recording).
Triggers Waveform snapshot.
Returns to the “MEASUREMENTS” submenu.
3.9.2
Trend
During active recording TREND view is available (see section 3.14 for instructions how to start
recording). Flicker parameters can be observed by cycling function key F4 (METER -TREND). Note that
Flicker meter recording intervals are determinate by standard IEC 61000-4-15. Flicker meter therefore
works independently from chosen recording interval in GENERAL RECORDER.
Figure 3.35: Flickers trend screen
F1
F4
