High Voltage PFT Series, Safety, Operation, And Procedure Instructions

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4
VOLTMETER
LOW HIGH
OUTPUT
GROUND
INPUT
FUSE
MAIN
POWER
HIGH
VOLTAGE OFF ON
EXT
INTLK
AC TEST SET PFT SERIES
RETURN
MODE
GUARD GROUND
LOAD
RETURN
CURRENT RANGE
X10
X1 X100
PLEASE REFER TO
DOCUMENTATION
BEFORE OPERATION
Figure 1 PFT Series front panel controls.
M A I N P O W E R
The MAIN POWER pushbutton switch provides the power to the control and power circuits. The neon lamp in
the switch will light when the power is on and voltage is available through the input line cord. The INPUT
FUSE located electrically before the MAIN POWER switch provides line fault protection for the unit.
E X T I N T L K ( E X T E R N A L I N T E R L O C K )
The Ext Intlk connector is provided to allow for a normally open safety interlock switch to control the
energizing of the high voltage output.
H I G H V O L T A G E O N / O F F
The HIGH VOLTAGE ON and OFF pushbuttons control the high voltage power circuits. The red and green
LEDs provide life long positive indication of the circuit status. The red LED lights when high voltage is
energized and the green LED lights when the high voltage is de-energized.
O U T P U T C O N T R O L
The OUTPUT control variable transformer adjusts the output voltage. The 0-10 markings on the knob indicate
the low to high setting. The control must be at ZERO (0) to energize the high voltage circuits. The output
control must always be returned to zero at the completion of testing, prior to de-energizing the output