ER Series 300 Watt Regulated High Voltage DC Power Supplies	PDF Print Version HTML Print Version
Models from 0 to 1kV through 0 to 75kV, 3.5 inch panel height 18 pounds.
Fully compliant with the European harmonized EMI directive, EN50082-2, and with the low voltage (safety) directive, 73/23/EEC.			Laboratory Performance Enhanced Features Economical Price

Air Insulated. As in all standard Glassman power supplies, the ER Series features "air" as the primary dielectric medium. No oil or encapsulation to impede serviceability or increase weight.

Constant Voltage/Constant Current Operation. Automatic crossover from voltage or current regulated mode dependent on the load conditions.

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

Tight Regulation. Voltage regulation better than 0.005% line or load: current regulation better than 0.05% from short circuit to rated voltage.

Fast Transient Response. Less than 3 milliseconds for a 50% load transient.

Front Panel Controls (Analog and Digital Versions). Ten-turn voltage and current controls with locking vernier dials. AC power ON/OFF and high voltage enable switches.

Remote Control Facilities.As standard, all ER Series power supplies provide output voltage and current program/monitor terminals, TTL high voltage enable/disable, safety interlock terminals, and a +10 volt reference source.

Small Size and Weight. ER Series power supplies consume only 3.5" of vertical panel height. Total weight is 18 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.

(From 5% to 100% rated voltage. All units operate down to zero output with very slight degradation of performance.)

Input: 105-125 V RMS, 48-63 Hz single phase, <6 A. Connector per IEC 320 with mating line cord.

Efficiency: Typically 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 + 10V signals is provided. Linearity is <1% of rated. Accuracy is 1% of rated + 1% of setting. Repeatability is <0.1% of rated.

Stored Energy: 20 kV model, 1.5 joules; 60 kV model, <4 joules.

Voltage Regulation: <0.005% +1mV/mA, line and load.

Ripple: <0.02% RMS of rated voltage +0.5V at full load; models 1.5kV and lower, 400mV (500mV Japan).

Current Regulation: <0.05% from short circuit to rated voltage at any set current.

Voltage Monitor: 0 to +10 V DC for zero to rated current. Accuracy, 1% of reading + .1% of rated voltage.

Current Monitor: 0 to + 10 V DC for zero to rated current. Accuracy, 1% of reading + .05% of rated current.

Stability: 0.01% per hour after 1/2 hour warm-up, 0.05% per 8 hours.

Voltage Rise/Decay Time Constant: Typically 50 ms rise or decay time constant (300 ms for 75 kV model) using HV (on/off) or remote voltage control with 75% resistive load.

Temperature Coefficient: 0.01%/°C.

Ambient Temperature: -20 to +40°C operating, -40 to +85°C storage.

Polarity: Positive, negative, or reversible with respect to chassis ground.

Protection: Automatic current regulation protects against all overloads, including arcs and short circuits. Fuses, surge-limiting resistors, and low-energy components provide ultimate protection.

Accessories: Detachable 8-foot shielded HV cable (see Model Chart for cable type) and 6 foot detachable line cord provided.

Remote Controls: Common, +10 V reference, interlock, current monitor, current program, voltage monitor, voltage program, TTL, and ground, provided on a rear panel mounted terminal block.

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

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

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