Tektronix THS710A, THS720A, THS720P, THS730A - page 20

Specifications
THS710A, THS720A, THS730A & THS720P Service Manual 1–5
Table 1–1: Oscilloscope specifications (Cont.)
Measurements
Cursors Voltage difference between cursors (DV)
Time difference between cursors (DT)
Reciprocal of DT in Hertz (1/DT)
Phase difference between cursors (DDegrees)
Automated
Measurements Amplitude, Burst Width, Cycle Mean, Cycle RMS, Fall Time, Frequency, High, Low, Max, Mean, Min, Negative Duty Cycle, Negative
Overshoot, Negative Width, Pk – Pk, Period, Positive Duty Cycle,
Positive Overshoot, Positive Width, Rise Time, and RMS
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
Amp
litu
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
Ary
Fundamental 2 – 11 12 – 21 22 – 31
A
ccu
r
ac
y
—±4 ° ±8 ° ±8 °
THD-F Measurement Total harmonic distortion relative to the fundamental amplitude
THD-F V2
RMSV2
f

Vfor A2
RMSA2
f

Af
THD-F Accuracy ±4%
THD-R Measurement Total harmonic distortion relative to the RMS amplitude
THD-R V2
RMSV2
f

VRMS or A2
RMSA2
f

ARMS
THD-R Accuracy ±4%
Frequency Accuracy ±0.2% of reading
Power Measurements (THS720P)
True Power
Measurement W1
n
n
VnAn
measured over an integral number of cycles that
contain n sample points
Apparent Power
Measurement VA VRMSARMS
Reactive Power
Measurement VAR (VA)2W2

Power Measurements
Accuracy ±4% at the BNCs (not including probe uncertainty)