X2364 MANUAL
5
118044-001 REV E
Chapter 3
Operating Instructions
3.1 Operation
WARNING
THIS EQUIPMENT GENERATES
DANGEROUS VOLTAGES THAT MAY BE
FATAL.
PROPER GROUNDING OF ALL HIGH
VOLTAGE EQUIPMENT IS ESSENTIAL.
WARNING:
Before connecting the power supply to the
AC line, follow this step-by-step procedure.
Do not connect the power supply to the AC
line until Step G is reached.
Failure to follow these procedures may void
the warranty.
A)
Insure that the Circuit Breaker is in the OFF
position (0).
B)
Check the input voltage rating on the nameplate
of the supply and make certain that this is the rating of the
available power source. Spellman X3145 operates from
187Vac to 264Vac, 50 to 60Hz, single phase.
C)
PROPER GROUNDING TECHNIQUE:
The
chassis of high voltage power supplies must be grounded,
preferably to a water system ground using copper pipe or
other earth ground using the connection terminal at the
rear of the unit. See Figure 3.1 for a typical operating
setup.
The return line from the load should be connected to the
terminal on the rear of the power supply. Using a
separate external ground at the load is not recommended.
The units are provided with a three-conductor line cord.
D)
Attach the output cable to the load.
E)
Plug the high-voltage output cable into the rear
of the supply and hand-tighten the knurled collar.
F)
For initial turn-on, rotate the KILOVOLT
control fully counter-clockwise to the zero voltage
position.
G)
The input power cable may now be connected to
the AC power line.
H)
Switch the front panel circuit breaker to the ON
position (1). (If the supply is to be turned off for an
extended period of time the line cord should be
disconnected). The unit is now in the HIGH VOLTAGE
OFF mode. The HIGH VOLTAGE OFF light should be
lit.
I)
Depress and hold the HIGH VOLTAGE OFF
switch. The front panel meters will now read the preset
value of the KILOVOLT control dial and the
MILLAMPERES control dial. To preset the desired level
of the current and voltage during operation, hold the
HIGH VOLTAGE OFF switch and rotate the appropriate
control dial while noting its corresponding meter reading.
Release the HIGH VOLTAGE OFF switch.
NOTE: No actual output is being produced at this stage.
J)
Depress the HIGH VOLTAGE ON switch. The
light inside the switch should light up and the output will
slow start to the preset level output voltage and/or output
current.
Note:
The X2364 is equipped with a slow start circuit
that ramps the output up to its maximum setting in
approximately 6 seconds after the HIGH VOLTAGE ON
switch is depressed.
K)
To terminate the generation of output power,
depress the HIGH VOLTAGE OFF switch. In the HIGH
VOLTAGE OFF mode the power supply’s fault and
interface circuits are still active.
L)
To turn off the power supply, turn the circuit
breaker to the off position (0).
WARNING
AFTER TURNOFF, DO NOT HANDLE THE LOAD
UNTIL THE CAPACITANCE HAS BEEN
DISCHARGED!
LOAD CAPACITANCE MAY BE DISCHARGED BY
SHORTING TO GROUND.
