Tektronix TekScope THS710A - Page 165

Appendix A: Specifications
A–8
THS710A, THS720A, THS730A & THS720P User Manual
Oscilloscope Specifications (Cont.)
Voltage and Current Harmonics (THS720P)
Number of Harmonics First 31 harmonics of signal with fundamental frequency between
30 Hz and 450 Hz
Ha
rm
onic
s
Am
plitu
de
Accuracy
Accuracies below are stated as a percent of the fundamental
amplitude and are valid only if peak-to-peak amplitude is
≥4 divisions and number of averages ≥16
Fundamental 2 – 11 12 – 21 22 – 31
±2.5% ±2.5% ±4% ±4%
Ha
rm
onic
s
Pha
se
Ar
Fundamental 2 – 11 12 – 21 22 – 31
A
ccu
r
acy
—
±4 ° ±8 ° ±8 °
THD-F Measurement
Total harmonic distortion relative to the fundamental amplitude
THD-F 
V
2
RMS
 V
2
f

V
f
or
A
2
RMS
 A
2
f

A
f
THD-F Accuracy ±4%
THD-R Measurement Total harmonic distortion relative to the RMS amplitude
THD-R 
V
2
RMS
 V
2
f

V
RMS
or
A
2
RMS
 A
2
f

A
RMS
THD-R Accuracy ±4%
Frequency Accuracy ±0.2% of reading