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 500 ns.
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. At this point, nothing should appear on the oscilloscope.
7. 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.
8. 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 +1000V (or -1000V for "-N" models).
c) Observe the oscilloscope. You should see 500 ns wide, 1000V pulses. (Note
that the resistor-divider load reduces the oscilloscope voltage by a factor of 11.)
If you do not, you may need to adjust the delay setting to a value more
compatible with your sampling oscilloscope. Repeat step 4 if required. You may
also need to adjust the sampling scope controls.
d) Rotate the ADJUST knob. The amplitude as seen on the oscilloscope should
vary. Return it to 1000V.
e) ("-PN" units only) Press the +/- button on the front panel. The amplitude as
seen on the oscilloscope should flip polarity, to -1000V.
f)
Press CHANGE to return to the main menu.
9. Try varying the pulse width, by repeating step (5). As you rotate the ADJUST knob,
the pulse width on the oscilloscope will change. It should agree with the displayed
28
Summary of Contents for 14156
Page 29: ...value This completes the operational check 29...
Page 35: ...WIRING DIAGRAMS WIRING OF AC POWER...
Page 36: ...PCB 158R5 LOW VOLTAGE POWER SUPPLY...
Page 37: ...PCB 170C HIGH VOLTAGE POWER SUPPLY...
Page 39: ...PCB 94H ALARM BOARD...
Page 40: ...PCB 104G KEYPAD DISPLAY BOARD...
Page 41: ...MAIN WIRING POSITIVE UNITS P...
Page 42: ...PERFORMANCE CHECKSHEET 42...