EK Series 600W Regulated High Voltage DC Power Supplies	PDF Print Version HTML Print Version
Models from 0 to 1 kV through 0 to 60 kV, 3.50" H x 20.5" D, 20 lbs
The EK Series are fully compliant with the European Harmonized EMI Directive EN50082-2 and with the European Low Voltage (Safety) Directive, 73/23/EEC.			1 kV to 60 kV Rack Mount 3.5 Inch Panel Height Laboratory Performance CE and Semi S2-93 Compliant

The 600W EK series features two notable technology benefits 1: Glassman’s proprietary air-insulation technology—where air is used as the primary dielectric medium, in comparison to competitive models that utilize silicon rubber, epoxy or oil. Air offers distinct advantages from both a long-term reliability standpoint and serviceability over the extended life of the product. 2: Proprietary arc sensing and quench circuitry that will suppress arcing conditions that can occur regularly in DC power supply applications limiting the amount of energy that is being fed to the source as well as providing maximum safety and protection for both the power supply and customer load.

This feature makes the EK ideal for use with Magnetron sputtering, X-ray, Electron Gun and Ion source applications to name a few. It can also be utilized as a Laboratory or bench-top high voltage power supply.

The EK also offers a Constant Power option that can suit a host of system control requirements. It is CE Mark certified and as an option offers power factor correction for applications or customers that require this feature.

Arc Quench. The HV output is inhibited for a short period after each load arc to help extinguish the arc.

Arc Sensing. 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.

Low Ripple. Typically, ripple is less than 0.02% RMS of rated voltage at full load.

Air Insulated. The EK Series features "air" as the primary dielectric medium. No oil or encapsulation is used to impede serviceability or increase weight.

Constant Voltage/Constant Current Operation. Automatic crossover from constant-voltage to constant-current regulation provides protection against overloads, arcs, and short circuits.

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 rated voltage.

Warranty. Standard power supplies are warranted for three years; OEM and modified power supplies are warranted for one year. A formal warranty statement is available.

(Specifications apply from 5% to 100% rated voltage. Operation is guaranteed down to zero voltage with a slight degradation of performance.)

Input: 102 - 132 V RMS, single-phase, 48-63 Hz, 1200 VA maximum at full load. Connector per IEC 320/VI with mating line cord, terminated with NEMA 5 -15 plug.

Efficiency: Typically greater than 85% at full load.

Output: Continuous, stable, adjustment from 0 to rated voltage or current by panel mounted 10-turn potentiometers with 0.05% resolution, or by external 0 to 10 V signals is provided. Voltage accuracy is 0.5% of setting + 0.2% 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 load variations.

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 0.025% 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 load condition.

Voltage Monitor: 0 to +10 V equivalent to 0 to rated voltage. Accuracy, 0.5% reading + 0.2% rated. Impedance is 10 K Ohm.

Current Monitor: 0 to +10 V equivalent to 0 to rated current. Accuracy, 1% reading + 0.05% rated for fixed polarity, 1% reading + 0.1% rated for reversible polarity. Impedance is 10 K Ohm.

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 6 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.

Arc Quench: 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.

Arc Sensing: 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.

External Interlock: Open = off, closed = on. Normally latching except for blank front panel version where it is non-latching.

Front Panel Elements. The front panel contains all local control functions. These control functions are: AC power on/off switch and pilot light, separate 10-turn controls with locking vernier dials used to set voltage and current levels, and a high voltage ON switch. LED's indicate when high voltage is on, output polarity, and whether the supply is operating in a voltage or current regulating mode. Output levels are indicated by voltage and current digital meters.

Rear Panel Elements. AC power entry connector, fuses, power on indicator, ground stud, HV output connector, and remote interface terminal strip.

The signals provided on the remote interface terminal strip are as follows:

• Inputs: Safety interlock, output voltage and current program signals, and high voltage enable.
• Outputs: Output voltage and current monitor signals, and a +10 V reference source.

Signal common and ground reference terminals are also provided.

Remote HV Enable/Disable:
0 - 1.5 V = OFF,
2.5 - 15 V = ON.

Accessories: Detachable, 8 foot, shielded high voltage coaxial cable (see models chart for cable type) and 6 foot detachable line cord are provided.

Weight: Approximately 20 lbs.

Click on the model number below to request a quote and for complete ordering part number.