Avtech AVRF-7B-B, Instructions Manual

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an example of a suitable high-voltage probe.) A high-voltage attenuator might be
necessary to avoid damaging the probe and oscilloscope. The 50Ω load resistor
should be rated for at least 750V of voltage and 11W of average power.
3. Turn on the AVRF-7A-B. The main menu will appear on the LCD.
4. To set the AVRF-7A-B to trigger from the internal clock at a PRF of 1 kHz:
a) The arrow pointer should be pointing at the frequency menu item. If it is not,
press the MOVE button until it is.
b) Press the CHANGE button. The frequency submenu will appear. Rotate the
ADJUST knob until the frequency is set at 1 kHz.
c) The arrow pointer should be pointing at the “Internal” choice. If it is not, press
MOVE until it is.
d) Press CHANGE to return to the main menu.
5. To set the delay to 1 us:
a) Press the MOVE button until the arrow pointer is pointing at the delay menu
item.
b) Press the CHANGE button. The delay submenu will appear. Rotate the
ADJUST knob until the delay is set at 1 us.
c) The arrow pointer should be pointing at the “Normal” choice. If it is not, press
MOVE until it is.
d) Press CHANGE to return to the main menu.
6. To set the pulse width to 1 us:
a) Press the MOVE button until the arrow pointer is pointing at the pulse width
menu item.
b) Press the CHANGE button. The pulse width submenu will appear. Rotate the
ADJUST knob until the pulse width is set at 1 us.
c) The arrow pointer should be pointing at the “Normal” choice. If it is not, press
MOVE until it is.
d) Press CHANGE to return to the main menu.
7. At this point, nothing should appear on the oscilloscope.
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