Tektronix DPO70000 Series Technical Reference

Performance Tests (MSO/DPO5000 Series)
Table 4-2: Gain
expected worksheet
Oscilloscope
Vertical Scale
Setting V
diffExpected
V
negative
V
positive
V
negative-measured
V
positive-measured
V
diff
Test
Result
(Gain
Accuracy)
1 mV/div
9 mV -4.5 mV +4.5 mV
2 mV/div
18 mV -9 mV +9 mV
4.98 mV 44.82 mV -22.41 mV +22.41 mV
5 mV 45 mV -22.5 mV +22.5 mV
10 mV 90 mV -45 mV +45 mV
20 mV 180 mV -90 mV +90 mV
49.8 mV 448.2 mV -224.1 m V + 224.1 mV
50 mV 450 mV -225 mV +225 mV
100 mV 900 mV -450 mV +450 mV
200 mV 1800 mV -900 mV +900 mV
500 mV 4900 mV -2450 mV +2450 mV
1.0 V 9000 mV -4500 mV +4500 mV
9. Record Gain Accuracy as follows:
a. Calculate V
diff
as follows:
V
diff
=|V
negative-measured
- V
positive-measured
|
b. Enter V
diff
in the worksheet. (See Table 4-2 on page 4-32.)
c. Calculate Gain Accuracy as follows:
Gain
Accuracy =((V
diff
- V
diffExpected
)/ V
diffExpected
) ≥ 100%
d. Enter Gain Accuracy in the worksheet and in the test record.
10. Repeat tests at 1 MΩ impedance as follows:
a. Set the calibrator to 1 MΩ output.
b. Push the front-panel Vertical Menu button.
c. Set the Te rmination to 1MΩ
d
.
R
epeat steps 8 through 9.
11. Repeat steps 7 through 10 for all vertical scale settings in the test record.
4–32 MSO70000/C, DSA70000B/C, DPO7000B/C, DPO7000, MSO5000, DPO5000 Series

Tektronix DPO70000 Series Specifications

General

Brand	Tektronix
Model	DPO70000 Series
Category	Test Equipment
Language	English