600 Watt Regulated
DC Power Supplies
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|Models from 0 to 1kV through 0
to 60kV, 3.5" H x 19" W x 20.5" D, 20 lbs.
|The FJ Series with F22 option,
are fully compliant with the
following European Directives:
EN61000-3-2, Line Harmonics
EN61010/ IEC61010, Safety
EN61000-6-4, Conducted and Radiated Emissions
EN61000-6-2:2005, Conducted and Radiated Immunity.
2011/65/EU, Restriction of the use of hazardous substances (RoHS).
- 1 to 60kV
- 3.5" Rack
- CE & Semi S2-93 Compliant
- RoHS Compliant
The EJ Series of 600 watt high voltage
supplies feature flexible embedded controls with low ripple and noise. They are
air insulated, fast response units, with tight regulation and extremely low arc
Please refer to
Technology > Applications page on our web site for typical applications.
Arc Quench. The HV output is inhibited
for a short period after each load arc to help extinguish the arc.
Arc Count. Internal circuitry constantly
senses and integrates arcs that occur over a given time. In the event a system
or load arcing problem develops and exceeds factory-set parameters, the power
supply will cycle off in an attempt to clear the fault and then automatically
restart after a preset “off dwell time”.
Pulse-Width Modulation. Off-the-line-pulse-width modulation
provides high efficiency and a reduced parts count for improved reliability.
Embedded Microcontroller Control. Front
panel digital encoders provide high resolution local adjustment of voltage and
current program. Integral RS-232, USB and optional Ethernet communications
provide remote control program and monitor.
Low Ripple. Typically, ripple is less than 0.03%
RMS of rated voltage at
Air Insulated. The EJ Series features "air" as the
primary dielectric medium. No oil or encapsulation is used to impede serviceability or increase
Constant Voltage/Constant Current Operation. Automatic crossover
from constant-voltage to constant-current regulation provides protection against overloads, arcs, and
Redundant Thermal Overload Protection.
Thermostats and fan RPM sensing shut down the power supply due to over
temperature or reduced fan speeds.
Tight Regulation. Voltage regulation is better than 0.005% for
allowable line and load variations. Current regulation is better than 0.1% from short circuit to
Constant Current/Current Trip. A rear
panel switch allows selection of either current mode.
Adjustable ramp time from 0 - 30 seconds. Output ramps from 0 V to programmed
Warranty. Standard power supplies are warranted for three
years; OEM and modified power supplies are warranted for one year. A formal warranty statement is
(Specifications apply from 5% to 100% rated
voltage. Operation is guaranteed down to zero voltage with a slight degradation
Input: User selectable via rear panel
switch, 102 - 132 V RMS or 198 to 264 VRMS single-phase, 48-63 Hz, 1200 VA
maximum at full load. C14 connector per IEC 60320 with mating line cords
SHIPPED SET FOR 198 to 264.
Efficiency: Typically greater than 85% at full load.
Output: Continuous, stable adjustment,
from 0 to rated voltage or current by panel mounted optical rotary encoder or by
external +10V signals. Voltage accuracy is 0.5% of setting + 0.2% of rated.
Optical rotary encoder resolution: 0.025% with "Fine Adjustment" mode selected.
0.25% with "Coarse Adjustment" mode (default). Repeatability is < 0.1% of rated.
Static Voltage Regulation: Better than
±0.005% for specified line variations and 0.005% + 0.5 mV/mA for no load to full
Dynamic Voltage Regulation: For load
transients from 10% to 99% and 99% to 10%, typical deviation is less than 2% of
rated output voltage with recovery to within 1% in 500 us and recovery to within
0.1% in 1 ms.
Ripple: Better than 0.03% of rated
voltage + 0.5 V RMS at full load.
Current Regulation: When in current
regulation mode, better than 0.1% from short circuit to rated voltage at any
Voltage Monitor: 0 to +10 V equivalent
to 0 to rated voltage. Accuracy: 0.5% of reading + 0.2% of rated. Impedance is
Current Monitor: 0 to +10 V equivalent
to 0 to rated current. Accuracy: 1% of reading + 0.1% of rated. Impedance is 10
Stability: 0.01% per hour after 1/2 hour
warm-up, 0.05% per 8 hours.
Voltage Rise/Decay Time Constant: The
voltage rise time constant is 50 ms typical for all models using either HV
enable or remote programming control. The voltage decay time constant is 50 ms
with a 30% resistive load for 8 kV to 60 kV models and 50 ms with a 10%
resistive load for 1 kV to 8 kV models.
Temperature Coefficient: 0.01% /°C.
Ambient Temperature: -20 to +40° C,
operating; -40 to +85° C, storage.
Polarity: Available with either positive, negative, or reversible
polarity with respect to chassis ground.
Protection: Automatic current regulation
protects against all overloads, including arcs and short circuits. Thermal
switches and RPM sensing fans protect against thermal overload. Fuses,
surge-limiting resistors, and low energy components provide ultimate protection.
An arc quench feature provides sensing of each load arc and quickly inhibits the
HV output for approximately 20 ms after each arc. Standard on 8 - 60 kV models;
optional on 1- 6 kV models.
Internal circuitry senses the number of arcs caused by external load discharges.
If the rate of consecutive arcs exceeds approximately one arc per second for
five arcs, the supply will turn off for approximately 5 seconds to allow
clearance of the fault. After this period the supply will automatically return
to the programmed kV value with the rise time constant indicated. If the load
fault still exists, the above cycle will repeat. Standard on 8 - 60 kV models;
optional on 1- 6 kV models.
Open = off, closed = on. Normally latching except for blank front panel version
where it is non-latching.
Remote HV Enable: 0-1.5 V off, 2.5-15 V on.
RS232/USB/Ethernet Programming and Monitor
Resolution: 0.025% of full scale for both the voltage
and the current programs. 0.1% of full scale for both the voltage and the
Remote setting accuracy: Voltage setting accuracy is
better than 0.5% of setting + 0.2% of rated.
Remote Reading accuracy: Voltage reading accuracy is 0.5%
of reading + 0.2% of rated. Current reading accuracy is 1% of reading + 0.1% of
Rear Panel Elements:
Output Voltage & Current Display: 3.5
Digit digital meters. 1250 count maximum.
Indicators: AC Power, Current Mode,
Voltage Mode, Pol +, Pol -, Fault, Fine Adjustment, Preset, Control Lock, Remote
Enable, Remote Program, HV On.
AC Power: Rocker switch
Switches (momentary): HV On, SS Slope,
Standby, Remote Enable, Remote Program, Preset, Fine Adjust, Control Lock.
Rotary Encoders: Voltage Adjust, Current
Rear Panel Elements: AC power entry
connector, fuses, power on indicator, ground stud, HV output connector,remote
interface connector, RS232/USB connectors, and input voltage selector switch.
The signals provided on the remote interface connector are as follows:
Inputs: Safety interlock, output voltage and current
program signals, high voltage enable and remote HV on.
Outputs: Output voltage and current monitor signals,
HV status, fault status, I/V mode status and a +10 V reference source.
common and ground reference
terminals are also provided.
Accessories: Detachable, 8 foot,
shielded high voltage coaxial cable (see models chart for cable type), 6 foot
NEMA 5-15 line cord, 6 foot NEMA 6-15 line cord, 10 foot null modem cable and 10
foot USB cable are provided.
Weight: Approximately 20 lbs.
||100/200 VAC ±
10%, 48 - 63 Hz, Selectable. Shipped set for 200 VAC.
||Required for CE
Compliance - 230 VAC Power Factor Corrected. AC Input line rated for 198 -
264 VAC, 48 - 63 Hz, 800 VA maximum. Active correction circuitry achieves an
input line current harmonic content well below the maximum specified in
EN61000-3-2. (AC Line voltage selector switch removed.) One NEMA 6-15 cord
||Blank front panel, power switch only.
||Zero start interlock. Voltage control, local or remote, must be at zero before HV will enable.
||0-5 V voltage and current
||Arc count and quench as
described in the specifications for 1 - 6 kV models.
||Arc Count Only.
||Arc Quench Only.
||Virtual RS-232 COM port over
Ethernet network. (Requires compatible OS (eg Windows) for COM drivers).
|Please consult factory for special requirements.
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for complete ordering part number.