Performance Verification
Check Offset Accuracy
This test check
s the offset accuracy.
1. Connect the oscilloscope to a DC voltage source to run this test. If using the
Wavetek calibrator as the DC voltage source, connect the calibrator head
to the o scilloscope channel to test.
2. Push the front-panel Default Setup button to set the instrument to the factory
default settings.
3. Push the channel button (1,2,3,4) for the channel that you want to check.
4. Confirm that the oscilloscope and calibrator impedances are both set to 50 Ω.
Push the Impedance lower-bezel button to select 50 Ω.
5. Set the calibrator to the vertical offset value shown in the test record (for
example, 900 mV for a 1 mV/div setting). Set the calibrator to the same
impedance as you set for the oscilloscope.
6. Set the oscilloscope to the vertical offset value shown in the test record (for
example, 900 mV for a 1 mV/div setting).
7. Turn the vertical Scale to match the value in the test record (for example,
1mV/div).
8. Turn the Horizontal Scale knob to 1 ms/div.
9. Push the lower-bezel Bandwidth button.
10. Push the side-bezel button to select the bandwidth to 20 MHz.
11. Push the Mor
e lower-bezel button repeatedly to select Offset.
12. Check that the vertical position is set to 0 divs. If not, turn the Ve rtical
Position knob to set the position to 0 or push the appropriate Setto0divs
button.
13. Push the front-panel Acquire button.
14. Push the Mode lower-bezel button, and push the Average side bezel button.
The default number of averages is 16.
15. Push the front-panel Trigger Menu button.
16. Push the Source lower-bezel button.
MSO4000 and DPO4000 Series Specifications and Performance Verification 43
To Next Page
Loading...
Need help?
General
