AVTECH ELECTROSYSTEMS AVR-2B-B, Instructions Manual

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 Press MOVE until the arrow pointer is pointing at the “ON” choice.
 Press CHANGE to return to the main menu.
9. To change the output amplitude:
 Press the MOVE button until the arrow pointer is pointing at the amplitude menu
item.
 Press the CHANGE button. The amplitude submenu will appear. Rotate the
ADJUST knob until the amplitude is set at +100V (or -100V for "-N" instruments).
 Observe the oscilloscope. You should see 100 us wide, 100V pulses.
 Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary.
 Reduce the amplitude to 50V (or -50V for "-N" instruments), using the adjust
knob.
 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.)
 Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary.
 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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