O P E R A T O R M A N U A L
7
OUTPUT
FREQUENCY
.05Hz
.02Hz
.01Hz
.1Hz
BURN
HIPOT
OUTPUT
MODE
FAULT/RESET
POS
NEG
SCOPE
OUTPUT
EXT
INTLK
METER
MODE
uF
mA
CAP
ZERO
CAPACITANCE
SCALE X10
X1
PUSH TO READ
CAPACITANCE
MEASUREMENT
HOT
COM
MAIN
POWER
HIGH
VOLTAGE
RAISE
LOWER
OFF
ON
TIMER
START
AC TEST SET
VLF SERIES
PLEASE REFER TO
DOCUMENTATION
BEFORE OPERATION
Figure 1 VLF Series front panel controls.
M A I N P O W E R
The MAIN POWER neon lamp will light when the main power circuit breaker is on in the power section
and voltage is available to the input terminals.
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.
F A U L T / R E S E T
The FAULT/RESET pushbutton illuminates when the primary current in the power section has exceeded
the maximum limit. Its delayed trip allows for the short term overload of the variable transformer while still
providing proper protection. Depressing the pushbutton resets the circuit.
H I G H V O L T A G E O N / O F F
The HIGH VOLTAGE ON (OFF) pushbuttons activate (de-activate) the high voltage power circuits. The
LED indicators provide long life positive indication of the circuit status. The RED (ON) LED lights when
high voltage is energized, the GREEN (OFF) LED lights when the high voltage is de-energized.