14
ITEM
NAME
FUNCTION
1
VOLTAGE
Adjust Knob
Adjust the digital voltage set point in the tester.
Press the voltage knob to display the voltage set point. This setting will blink for a few seconds on the front meter.
Turn Clockwise to increase the setting Voltage Setting Point before pressing
CHARGE
button.
2
POLARITY
switch
The polarity switch only operates when the
CHARGE
indicator is lit, i.e. the output is not charged. The polarity of
the output waveform can be changed by pressing the
POLARITY
switch on the front panel. Press this switch to
toggle the output polarity from Normal to Reverse. The polarity is Normal when the
NOR
indicator is lit. In this
case, the High Voltage will appear on the
OUTPUT
(red lead) as a positive pulse relative to the
RETURN
(black
lead). When the polarity switch is in the Reverse position (
REV
indicator is lit), the High voltage will appear on the
OUTPUT
(red lead) as a negative pulse relative to the
RETURN
(black lead).
3
NOR REV
indicator
Indicates the state of the Output Polarity switch.
NOR
indicate Normal position,
REV
indicates Reverse position.
4
CHARGE
switch
Press this switch to begin charging the impulse storage capacitor. The
CHARGE
indicator will turn off after the
CHARGE
switch is pressed, and the
TRIGGER
indicator will turn on. The voltage on the capacitor will appear on
the voltage meter, Item 8. This voltage will appear across the output leads when the
TRIGGER
switch is pressed.
Note that the
POLARITY
switch is prevented from operating after the
CHARGE
switch has been pressed.
5
CHARGE
indicator
This Yellow indicator is lit to show that pressing the
CHARGE
switch is the next logical step in a test sequence.
Pressing the Charge switch causes the
CHARGE
indicator to go out.
6
TRIGGER
switch
Press this switch (after pressing the
CHARGE
switch to charge the storage capacitor) to trigger the output impulse
waveform. The impulse waveform will appear across the output leads.
7
TRIGGER
indicator
This Red indicator is lit to show that pressing the
TRIGGER
switch is the next logical step in a test sequence. This
indicator will turn on after the
CHARGE
switch is pressed, and will remain on until the
TRIGGER
switch is
pressed. Pressing the
TRIGGER
switch causes the
TRIGGER
indicator to go out.
8
VOLTAGE
meter
Displays the output voltage set point. This voltage is the open-circuit peak voltage that will appear across the output
leads when the trigger button is pressed. The voltage reading will increase from zero to the voltage set point when
the Charge switch is pressed. Note that the Voltage meter may indicate that some residual voltage is present on the
main storage capacitor, even when the tester is first turned ON. This is due to inherent charging of the internal
capacitors. Pressing the
TRIGGER
switch will discharge the capacitors (be sure not to touch the output and return
leads when pressing the trigger switch).
9
OUTPUT
cable
This cable includes both the
OUTPUT
(red) and
RETURN
(black) test leads. The provided large alligator clips may
optionally be connected to the ends of the test leads. These test leads should not be touched when a hazardous
voltage is indicated on the
VOLTAGE
meter.
Table 1. Controls, Indicators, Connectors – MegaPulse 1.2x50-16PF PV Front Panel
