Avtech AVR-3HG-B, Instructions Manual

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
Press the MOVE button until the arrow pointer is pointing at the output menu
item.

Press the CHANGE button. The output submenu will appear.

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 +300V (or -300V for "-N" instruments).

Observe the oscilloscope. You should see 1 us wide, 300V 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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