Avtech AVI-V-B-N-VCB, Инструкция по эксплуатации

Страница: 26 / 43

6. At this point, nothing should appear on the oscilloscope.
7. To enable the output:
a) Press the MOVE button until the arrow pointer is pointing at the output menu
item.
b) Press the CHANGE button. The output submenu will appear.
c) Press MOVE until the arrow pointer is pointing at the “ON” choice.
d) Press CHANGE to return to the main menu.
8. To change the output amplitude:
a) Press the MOVE button until the arrow pointer is pointing at the amplitude
menu item.
b) Press the CHANGE button. The amplitude submenu will appear. Rotate the
ADJUST knob until the amplitude is set at -50V.
c) Observe the oscilloscope. You should see 10 ns wide, -50V pulses. If you do
not, you may need to adjust the delay setting to a value more compatible with
your sampling oscilloscope. Repeat step 4 if required. You may also need to
adjust the sampling scope controls.
d) Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary. Return it to -50V.
e) Press CHANGE to return to the main menu.
9. Try varying the pulse width, by repeating step (5). As you rotate the ADJUST knob,
the pulse width on the oscilloscope will change. It should agree with the displayed
value.
This completes the operational check.
26