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 +250V (or -250V for "-N" instruments).
Observe the oscilloscope. You should see 1 us wide, 250V 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.
25
Содержание AVR-3HF-B
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Страница 35: ...PCB 197H HIGH VOLTAGE DC POWER SUPPLY DISCHARGE ...
Страница 44: ...PERFORMANCE CHECK SHEET 44 ...