EQ Series 1200 Watt Regulated High Voltage DC Power Supplies	PDF Print Version HTML Print Version
Models from 0 to 1kV through 0 to 60kV, 3.5" H x 19" W x 20.5" D, 22 lbs
Fully compliant with the European harmonized EMI directive, EN50082-2,and with the low voltage (safety) directive, 73/23/EEC.			1 to 60kV, 3.5" Panel Power Factor Corrected to >0.995 Harmonics Well Below EN61000-3-2

The 1200W EQ 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 EQ 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 EQ also offers a Constant Power option that can suit a host of system control requirements. 

Power-factor Corrected. Active correction circuitry achieves an input line current harmonic content well below the maximum specified in EN61000-3-2.

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."

Low Stored Energy. Most models exhibit less than 2 joules of stored energy.

Single-phase Input. Full 1.2kW output from a single-phase, 198-264V, 48-63Hz input, 1420VA maximum.

Pulse-Width Modulation. Off-the-line pulse-width modulation provides high efficiency and a reduced parts count for improved reliability.

Air Insulated. The EQ 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.

Low Ripple. Ripple is less than 0.02% of rated voltage at full load.

Tight Regulation. Voltage regulation is better than 0.005% for allowable line and load variations. Current regulation is better than 0.05% from short circuit to rated voltage.

Front Panel Controls. Separate 10-turn controls with locking vernier dials are used to set voltage and current levels. A high voltage enable (on) switch and an AC power on/off switch complete the panel controls. L.E.D.'s indicate when high voltage is on, the output polarity, and whether the supply isoperating in a voltage or current regulating mode. For the blank panel version, only a power on/off switch is provided onthe panel.

Small Size and Weight. EQ Series power supplies occupy only 3.5 inches of panel height. Net weight is less than 22 pounds.

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 0% of rated voltage with a slight degradation of ripple, regulation, and stability.)

Input: 198-264V RMS, single-phase, 48-63Hz, 1420 VA maximum. <7 A at 220 V. Connector per IEC 320 with mating line cord terminated with NEMA 6-15 plug.

Efficiency: Typically 85% at full load.

Power factor >0.995.

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 10V signals is provided. Voltage accuracy is 0.5% of setting + 0.2% of setting. Repeatability is <0.1% of rated.

Stored Energy: See Models chart.

Static Voltage Regulation: Better than 0.005% for specified line variations and 0.005% + 0.5 mV/mA for load variations.

Dynamic Voltage Regulation: For load transients from 10% to 100% and 100% to 10%, typical deviation is 2% of output voltage with recovery to within 1% in 500 µs and to 0.1% in 1 ms.

Ripple: <0.02% of rated voltage + 300 mV RMS at full load.

Current Regulation: 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% of reading + 0.2% rated.

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

Stability: 0.01% per hour after 1/2 hour warmup, 0.05% per 8 hours.

Voltage Rise/Decay Time Constant: 50 ms typical with a 10% resistive load using either HV on/off or remote programming control.

Temperature Coefficient: 0.01% per degree C.

Ambient Temperature: -20 to +40 degrees C, operating; -40 to +85 degrees 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 shorts. Fuses, surge-limiting resistors, and low energy components provide ultimate protection.

Arc Sensing: Internal circuitry senses the number of arcs caused by flawed external load characteristics. If the rate of consecutive arcs exceeds approximately 2 per second, the supply will turn off for approximately 2 seconds to allow clearance of the fault and then automatically resume normal operation. Custom modifications of this feature are available. Consult the factory.

Remote Controls: Terminal block is provided for all remote functions, including common, +10V reference, interlock, voltage and current program/monitor, HV enable, ground, and local control.

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

Remote HV Enable: 0-1.5 V off, 2.5-15 V on.

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