Performance Verification
17. Turn the Multip
urpose a knob to select the AC Line as the trigger source.
18. Push the front-panel Wave Inspector Measure button.
19. Push the Add Measurement lower bezel button.
20. Use the Multipurpose a knob to select the Mean measurement.
21. Push the OK Add Measurement side-bezel button. The mean value should
appear in a measurement pane at the bottom of the display.
22. Enter the measured value in the test record.
23. Repeat the procedure for each volts/division setting shown in the test record.
24. Change th
e impedance to 1 MΩ and repeat steps 5 through 23.
25. Repeat steps 3 through 24 for each channel of the oscilloscope that you want
to check
.
Check Sample Rate and
Delay Time Ac curacy
This test checks the sample rate and delay time accuracy (time base).
1. Connect the output of the time mark generator to the oscilloscope channel
1 input using a 50 Ω cable.
2. Set the time mark gene rator period to 80 ms. Useatimemarkwaveform
with a fast rising edge.
3. Push the front-panel Default Setup button to set the instrument to the factory
default settings.
4. Push the channel 1 button.
5. Set the impedance to 50 Ω.PushtheImpedance lower-bezel button to
select 50 Ω.
6. If adjustable, set the time mark amplitude to approximately 1V
p-p
.
7. Set the Vertical SCALE to 500 mV/div.
8. Set the Horizontal SCALE to 20 ms/div.
44 MSO4000 and DPO4000 Series Specifications and Performance Verification
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