Bender B93100735, Manual

Page: 73 / 116

73 PEM735_D00084_02_M_XXEN/06.2020
10. Harmonics
Overview of the measured harmonics as bar graphs. Use the and buttons to
switch between the individual displays.
There are two possibilities to calculate the individual harmonic distortion (RMS and dis-
tortion). This setting can be made directly on the device:
Settings > Calculation
Distortion
% U
k
/ U
FUND
"Fundamental"
THD calculation of an individual harmonic
(related to the fundamental
U
1
or I
1
)
RMS
% of RMS
"Root Mean Square", r.m.s. value:
Harmonic distortion calculation of an individual
harmonic (THF, related to the
total value
U
tot
or I
tot
)
U
k
U
k
Σ
∞
k = 1
THF
U(k)
=
2
x 100 %
I
k
I
k
Σ
∞
k = 1
THF
I(k)
=
2
x 100 %
THD U(k) =
U
k
U
1
x 100 %
THD I(k) =
I
k
I
1
x 100 %