Avtech AVRF-7B-B, Instructions Manual

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8. 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.
9. 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 +500V (or -500V for "-N"
instruments).
c) Observe the oscilloscope. You should see 1 us wide, 500V pulses.
d) Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary.
e) Reduce the amplitude to 50V (or -50V for "-N" instruments), using the adjust
knob.
f) For "-PN" units only: Change the output polarity by pressing the “+/-” button.
The output amplitude should become negative, and you should see -50V
pulses on the oscilloscope. (Avoid switching polarity when the amplitude is
higher than 100V. Reduce the amplitude first.)
g) Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary.
h) Press CHANGE to return to the main menu.
10. Repeat step 9, but set the amplitude to zero.
11. This completes the operational check.
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