Performance Verification
Check Sample Rate and
Horizontal Position Time
Accuracy
This test check
s the sample rate and horizontal position time accuracy (time base).
1. Connect the output of the time mark generator to the oscilloscope
channel 1 inpu
tusinga50Ω cable and 50 Ω feedthrough terminator.
2. Set the time ma rk generator period to 1ms. Use a time mark waveform 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. Push th
e lower-bezel Probe Setup button, and then push the Setto1X
side-bezel button.
6. Set th
e Vertical SCALE to 500 mV/div.
7. Set the Horizontal SCALE to 1ms/div.
8. If adjustable, set the time mark generator amplitude to approximately 1V
p-p
.
9. Push the Trigger Level knob, to set the trigger level to 50%.
10. Adjust the Vertical POSITION knob to center the time mark signal vertically
on the screen.
11. If necessary, adjust the Horizontal POSITION knob to move the trigger
location to the center of the screen (50%).
12. Turn the H orizontal POSITION knob counterclockwise to set the delay to
close to 1ms.
13. Set the Horizontal Scale to 10 ns/div.
DPO2000 and MSO2000 Series Specifications and Performance Verification 25
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