Tektronix P5100A, Technical Reference

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P5100A Performance Veri fi cation
8. Disconnect the calibration generator output from the oscilloscope and connect the probe to the same channel, as
shown in the test setup below. You must use the same oscilloscope channel throughout this procedure for the test
to be accurate and valid.
Figure 2: Setup for system accuracy check
9. Set the oscilloscope vertical to 1 V/division.
10. Set the calibration generator to 5 V
p-p
square wave output.
11. Enable the calibration generator output.
12. Trigger the oscilloscope and center the waveform on the screen.
13. Use the amplitude measurement selection on the oscilloscope to measure the voltage amplitude.
14. Calculate the corrected amplitude, V
corr
by multiplying the measured output from the previous step by the correction
factor (CF) derived in step 7.
For example, a measured output of 5.04 V multiplied by a correction factor of 0.997 yields a corrected amplitude
of 5.025 V.
15. Verify that the corrected amplitude, V
corr
, is 5 V, ±0.088 V. Record the results in the test record.
If your probe does not meet the speci fi cation, service-level adjustments (DC gain and high-frequency compensation) may be
required. (See page 5, P5100A Adjustments .) The procedures to make adjustments and to optimize the bandwidth and high
frequency response must be done by a quali fi ed service technician.
P5100A & P5150 High Voltage Probes Technical Reference 3