O P E R A T O R M A N U A L
12
5.
Insert the EXT INTLK plug into the socket on the control panel.
The plug may
also be wired to a normally open contact of a safety switch for added protection.
The setup of the VLF AC Test Set does not address the need for proper safety grounding of
the test cable load. The identification and disconnecting of cables from service and the
subsequent verification of the cables being de-energized may vary for different types of tests
or setups. Please consult the local codes where applicable or reference the guidelines
provided by your employer for maximum safety.
Operation of the Timer In the VLF
The Dwell Timer included in our VLF Series of AC Hipots will function as an
end of test alarm only. The timer will start upon initiation of the high voltage and
depression of the START TIMER pushbutton. The timing function will count up to the
preset value. Upon reaching the dwell time, an alarm will sound indicating the need
to return the Output Control to zero and turn off the high voltage, as noted in the
Operating Manual, by allowing the output discharge solenoids and polarity solenoids
to cycle at least ten more seconds (one full cycle).
The timer supplied will be settable from .1 second to 10 hour increments. The
timer will reset when the high voltage turns off by depressing the START TIMER
pushbutton.
Note Regarding use of MC connectors:
The MC connector requires the operator to push IN before pulling OUT to disconnect.
It should be noted that the VLF series test sets are not intended to be used
on vacuum bottles or switchgear without cables connected. The VLF
requires a minimum of .01uF load capacitance to achieve full output. If the
capacitance of the load is too low, the kilovolt meter will not read the actual
peak output and damage to the unit (and/or load) may result.
