Performance Ver
ification
Check Offset Accuracy
This test checks the offset ac curac y.
1. Connect the oscilloscope to a DC voltage source to run this test. If using the Fluke 9500 calibrator as the DC voltage
source, connect the calibrator head to the oscilloscope channel to test.
2. Push Default Setup on the front panel to set the instrument to the factory default settings.
3. Push channel button 1,2,3,or4 to select the channel you want to check.
4. Confirm that the oscilloscope termination and calibrator
impedance are both set to 1 M.PushTermination on the
lower menu to select 1MΩ.
5. Set the calibrator to the vertical offset value shown in the test record (for example, 700 mV for a 1 mV/div setting). Set
the calibrator impedance to m atch the termination setting for the oscilloscope.
6. On the oscilloscope, push More on the lower menu repeatedly, to select Offset.
7. Set the oscilloscope to the vertical offset value shown in the test record (for example, 700 mV for a 1 mV/div setting).
8. Turn the vertic al Scale knob to match the value in the test record (for example, 1 mV/division).
9. Turn the Horizontal Scale knob to 1 ms/div.
10. Push Bandwidth on the lower menu.
11. Push 20 MHz on the side menu.
12. Check that the vertical position is set to 0 divs. If not, turn the appropriate Vertical P osition knob to set the position to
0 divs.
Or, push More on the lower menu repeatedly to select Position, and then push Set to 0 divs on the side menu.
13. Push Acquire on the front panel.
14. Push Mode on the lower menu, and then pus
h Average on the side m enu. Use the default number of averages (16).
15. P u sh the Trigger Menu button on the front panel.
16. Push Source on the lower menu.
17. Turn Multipurpose knob “a” to select AC Line as the trigger source.
18. O n the front panel, push the Measure button on the Wave Inspector.
19. Push
Add Measurement on the lower menu.
20. Use Multipurpose kno b “b” to selec t the Mean measurement. Use Multipurp ose knob “a” to select the input
channel to be tested.
MDO3000 Series S pecifications and Performance Verification 83
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