MI 2792 PowerQ4 Plus
Operating the instrument
32
Ip, In
p:1..3
True effective phase current I
Rms
ThdU
Total voltage harmonic distortion THD
U
ThdI
Total current harmonic distortion THD
I
hn/ihn
n: 0..50
n-th voltage or current harmonic / interharmonic component Uh
n
/iUh
n
or
Ih
n
/ iIh
n
Table 3.20: Keys functions
Waveform snapshoot:
Hold measurement on display
Save held measurement into memory
Select between single phases, neutral, harmonics bars
Harmonics / interharmonics components for phase L1
Harmonics / interharmonics components for phase L2
Harmonics / interharmonics components for phase L3
Harmonics / interharmonics components for neutral channel
Switch to METER view
Switch to BAR view
Switch to TREND view (available only during recording)
Toggle cursor between voltage and current histogram
Scale displayed histogram by amplitude
Scroll cursor to select single harmonic / interharmonic bar
Exit from “HOLD” screen without saving.
Return to the “MEASUREMENTS” menu screen.
3.5.3 Trend
During active
RECORDER, TREND view is available (see section 3.9 for instructions
how to start RECORDER). Voltage and current harmonics / interharmonics components
can be observed by cycling function key F4 (METER-BAR-TREND).