For DC an d ACDC current measurement m
o
d
e
,
Auto Zero adjustment
functionality is available for DC current up t o + / - 5 A.
To make zero adjustment , long Press
HOLD
key on meter.
9.1 THD (Total Harmonic Distortion)
th
Power Clamp meter can me a s u r e THD up to 4 9 Harmonic.
By default meter is prese n t o n THD measurement screen.
THD =
n=2
49
2
th
( n order harmonic Current RMS value)
2
( Fundamental wave Current RMS value)
X 100 %
The meter acknowledge zero setting by a sound signal,
For AC Current mode following parameters are measured.
Ω
R
Y
B
90
º
90
º
Ω
Figure 9.2
14