Instructions

ASR-2000 Series User Manual
132
THD Format
Choose one of the THD (Total Harmonic Distortion) equations. The
equations of 2 varied modes (IEC by default) of Harmonic Format
below are for, specifically, by the time the upper limit of measured
harmonic order is 40.
Steps
1. Press the Menu key. The Menu
setting will appear on the display.
2. Use the scroll wheel to go to item 2, MISC
Configuration and press Enter.
3. Go to the THD Format setting using the scroll
wheel and press Enter. Choose the harmonic
mode and press Enter again to confirm.
IEC &
Equation
The ratio of rms value of the second
to the 40th harmonic component is
computed to that of the
fundamental.
CSA &
Equation
The ratio of rms value of the second
to the 40th harmonic component is
computed to that of the rms value
of the first to 40th component.