Performance Verification
7. Check that the v
ertical position is set to 0 divs:
a. Push the lower-bezel More button to select Position.
b. In the side-bezel button, check that the Vertical Position is set to 0divs.
c. If it is not 0 divs, turn the Vertical Position knob to set the position to 0.
8. Select 50 Ω impedance as follows:
a. Set the calibrator to 50 Ω output impedance (50 Ω source impedance).
b. Push the channel 1 button.
c. Set the Termination to 50 Ω.
9. Set the vertical Scale to 1mVper division.
10. Set the offset as follows:
a. Set the calibrator to 900 mV vertical offset.
b. Push the lower-bezel More button to select Offs
et.
c. Set the Vertical Offset to 900 mV, as shown in the test record.
11. Select the Mean measurement (if not already selected) as follows:
a. Push the front-panel Wave Inspector Measure button.
b. Push the Add Measurement lower-bezel button.
c. Select the Mean measurement.
d. Push the OK Add Measurement side-bezel button.
12. View the mean value in the measurement pane at the bottom of the display
and enter it as the test result in the test record.
13. Repeat step 12 for each vertical scale a nd offset setting combination shown
in the test record.
14. Repeat the tests at 1 MΩ impedance as follows:
a. Change the calibrator impedance to 1 MΩ.
b. Push the front-panel channel 1 button.
c. Set the Termination (input impedance) to
1MΩ.
d. Repeat steps 9 through 13.
15. Repeat the pro cedure for all remaining channels as follows:
a. Deselect the channel that you have already tested.
b. Move the DC voltage source connection to the next channel to be tested.
c. Starting from step 6, repeat the procedure for each channel.
72 MDO4000 Series Specifications and Performance Verification
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