Amprobe DMIII-Multitest Power-Quality-Recorder - Manual (Page 54)

AMPROBE
DMIII MULTITEST
EN-52
7.5. "CURRENT" FUNCTION
This function permits to display in real time the RMS value of AC/DC currents, the peak
and Thdl value of the 3 phase currents, the waveform and the harmonic spectrum of the 3
phase currents.
7.5.1. Symbols
The CURRENT position has three working modes:
 METER
 WAVE
 HARM
These modes will be described in detail in the next paragraphs.
The symbols used are described below:
Symbol Description
I1, I2, I3 RMS value of current (phase 1, phase 2, phase 3 respectively)
IN RMS value of current on neutral
Ipk1, Ipk2, Ipk3 Peak value of current (phase 1, phase 2, phase 3 respectively)
h01

h49 Harmonic 01

harmonic 49
ThdI Total harmonic distortion factor of current
freq Network frequency
Tab. 2: Symbols used in the CURRENT function