P5100A Performance Veri
fi
cation
System DC Attenuation Accuracy Check
1.
Connect the test setup as shown.
Figure 1: Setup for oscilloscope gain check
2.
Set the oscilloscope to:
vertical to 10 mV/division
horizontal to 20 ms/division
averaging to 64
3.
Set the calibration generator to:
output frequency = 10 Hz
50 mV
p-p
square wave output
output into 1 M
Ω
load
4.
Enable the calibration generator output.
5.
Trigger the oscilloscope and center the waveform on the screen.
6.
Use the amplitude measurement selection on the oscilloscope to measure the generator output voltage.
7.
Divide the measured output from the previous step into 50 mV to derive a correction factor, CF.
For example, if you measured 50.13 mV, then the CF = 50/50.13 = 0.997.
The correction factor will be used in step 14 of this procedure to calculate the corrected amplitude, V
corr
.
2
P5100A & P5150 High Voltage Probes Technical Reference
Summary of Contents for P5100A
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