Measurement Of The Level Of Harmonics (Thd) And; The Frequency Of The Fundamental (Network); Measurement Of Thd And Frequency Of The Fundamental (V); Measurement Of Thd And Frequency Of The Fundamental (A) - AEMC 205 User Manual

3.14 MEASUREMENT OF THE LEVEL OF HARMONICS (THD) AND

OF THE FREQUENCY OF THE FUNDAMENTAL (NETWORK)
The device measures the total harmonic distortion with respect to the
fundamental (THD
RMS value of the signal (THD
the frequency of the fundamental by digital filtering and FFT, for network
frequencies of 50, 60, 400, and 800Hz.
3.14.1 Measurement of the THD and the Frequency of the
Fundamental (V)
1. Set the switch to
THD symbol is displayed. To select THD
f
The THD
fundamental, press the
2. Connect the black lead to the COM terminal and the red lead to the "+"
terminal.
3. Place the test probes or the alligator clips on the terminals of the circuit
to be measured.
The measurement is displayed on screen.
3.14.2 Measurement of the THD and the Frequency of the
Fundamental (A)
1. Set the switch to
THD symbol is displayed. To select THD
f
THD
symbol is displayed. To select the frequency of the fundamental,
r
press the
2. Clamp the jaws around the conductor to be measured.
) and the total harmonic distortion with respect to the true
f
) in voltage and in current. Similarly, it determines
r
and press and hold the
symbol is displayed. To select the frequency of the
r
and press and hold the
key again. The Hz symbol is displayed.
, press the
r
button again. The Hz symbol is displayed.
, press the
r
33
button for (>2s). The
button again.
button for (>2s). The
button. The