9
CAUTION
High voltage generated by the MegaPulse tester is exposed during this test. A risk of shock
exists. Exercise care when using the MegaPulse tester.
1.
Turn the rear-panel Power Switch OFF.
2.
Disconnect all high voltage cables from the output.
3.
Turn the rear-panel Power Switch ON. If residual voltage is shown on LED display:
a.
Press the red
TRIGGER
button to discharge the main capacitor into the internal resistor
of the MegaPulse unit.
4.
Set the Voltage Set Point to 800V, see section “Voltage Set Point Adjustment.”
5.
Plug the Output and Return test leads into the jacks on the front panel.
6.
Connect the ends of the test leads to the measuring instrument. See
Error! Reference source not
found.
for an example.
7.
Set the next capturing setting on the digital oscilloscope to capture the high voltage pulse:
a.
Vertical Scale = 200V / div.
b.
Horizontal Scale = 200µs / div
c.
Trigger Level = +200V
d.
Slope transition “Low to High.”
e.
Set “High Frequency Reject” mode.
f.
Set “Single Pulse” capture mode.
8.
Press the Charge button and wait until voltage reaches 800V.
9.
Press the Trigger button to deliver the pulse (be sure not to touch the output and return leads when
pressing the trigger switch).
10.
Verify the amplitude of the positive pulse captured on the digital oscilloscope:
a.
Vpeak 800V.
Figure 4
Waveform Measurement Setup - Image for reference only.
