Seaward Power Clamp - Manual (Page 13)

12
THD Measurement (AC mode only)
Select the "THD" indicator then press the navigator key to
enter the THD mode.THD-F=RMS of Harmonics ÷ RMS of
fundamental ×100%.(harmonics up to the 25
th )
"THD"
"ENTER"
Individual Harmonic Measurement (AC mode only)
Select the " " indicator then press the navigator key to enter
the individual harmonic mode. To quit from the individual
harmonic mode, press the navigator key for more than 2sec.
Hn=RMS of Individual Harmonic ÷ RMS of fundamental ×100%.
"RIGHTWARD"
" "
"LEFTWARD"
"DOWNWARD"
"UPWARD"
" "
"LEFTWARD"
"RIGHTWARD"
"DOWNWARD"
"UPWARD"
ENTER
>2SEC