Atec EH User Manual

EH Series
100 Watt
Regulated
High Voltage
DC Power
Supplies

Laboratory
Performance…

Enhanced
Features…

Economical
Price

Fully compliant with the European
harmonized EMI directive, EN50082-2,
and with the low voltage (safety)
directive, 73/23/EEC.

Line harmonics are within the
European harmonized standard,
EN61000-3-2 specifications.

Features:

Unique “True Load Monitor” enables the
load current to be monitored accurately
with respect to ground. This eliminates
the need to break the common/ground
connection, and/or to program the
output with an isolated source.

Low Ripple. Better than 0.03% at

full load.

Air Insulated. As in all standard

Glassman power supplies these units
employ “air” as the dielectric medium.
No oil or encapsulation to impede
serviceability or increase weight

Low Stored Energy. Less than 800

millijoules for most models.

Constant Voltage Constant Current
Operation. Automatic crossover from

voltage or current regulated mode
dependent on the load conditions.

Tight Regulation. Voltage regulation

better than 0.005% line and 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 Elements Include: Ten turn

voltage and current controls with lock­ing vernier dials, accurate 2 1/2" analog
displays both voltage and current,
illuminated AC power on/off switch.

Remote Control Facilities Include:

Output voltage and current
program/monitor terminals, high
voltage enable/disable, safety
interlock terminals, and + 10 volt
reference source.

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.

Models from 0-1 kV DC through 0-60 kV DC.

The EH Series was designed for the user who requires premium performance
coupled with “application flexible” features. The result…high voltage power supplies
of superior quality…at an affordable price. Replete with standard features, there are
no hidden extras.

Check the specs…

and compare

Designing Solutions for High Voltage Power Supply Applications

GLASSMAN HIGH VOLTAGE INC.

124 West Main Street, PO Box 317, High Bridge, NJ 08829-0317

[phone] • Fax [phone] • www.glassmanhv.com

GLASSMAN EUROPE Limited (UK) GLASSMAN JAPAN High Voltage Limited

+

44 1256 883007 FAX [phone] [phone] FAX[phone]

E-mail: [e-mail] E-mail: [e-mail]

©Glassman High Voltage, Inc. Printed in the U.S.A. 02/10/01

Specifications

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

Input: 105-125V RMS 48-420 Hz, single

phase, less than 1.5 amperes. Input
connector per IEC 320 with mating line
cord provided.

Efficiency: Better than 75% 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 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: 10kV model, 200

millijoules; 50kV model, 1 joule.

Voltage Regulation: Better than 0.005%

+1mV/mA, line and load.

Ripple: Better than 0.03% RMS of rated

voltage +0.5V at full load.

Current Regulation: Better than 0.05%

from short circuit to rated voltage at
any set current condition.

Voltage Monitor: Zero to +10V DC

signal is equivalent to zero to rated
voltage. Accuracy, 1% of rated voltage.

Current Monitor: Zero to +10V DC

signal is equivalent to zero to rated
current. Accuracy, 1% of reading
+0.05% of rated current (Reversible
models 1% of reading +0.1% of rated).

Stability: 0.01% per hour, after 1/2 hour

warm-up, 0.05% per 8 hours.

Voltage Rise/Decay Time Constant:

Using either the HV (on/off) or remote
voltage control, with a 75% resistive
load, the output voltage will rise or
decay with a typical time constant of
60 milliseconds (100mS maximum).

Temperature Coefficient: 0.01%

per degree C.

Ambient Temperature: -20 to +60

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 the power supply against all
overload conditions, including arcs and
short circuits. Fuses, surge limiting
resistors, and low energy components
provide the ultimate protection.

Accessories: Detachable 8 foot shielded

high voltage coaxial cable (see Models
chart for cable type) and 6 foot
detachable line cord are provided.

Designing Solutions for High Voltage Power Supply Applications

GLASSMAN HIGH VOLTAGE INC.

124 West Main Street, PO Box 317, High Bridge, NJ 08829-0317

[phone] • Fax [phone] • www.glassmanhv.com

Options

Symbol Description

100 Rated for 90 to 110 volts RMS. 48-420 Hz.
220 Rated for 210 to 250 volts RMS. 48-420 Hz.
CT Current trip. Power supply trips off when the load current reaches the

programmed level. This option has a rear panel switch that selects either “trip”

operation or current limiting.
DM 3-1/2 digit LCD panel meters.
5VC 0-5 V voltage and current program/monitor.

Models

Positive Negative Reversible Output Output Output
Polarity Polarity Polarity Voltage Current Cable

EH1P100L EH1N100L EH1R100L 0-1kV 0-100mA RG-59
EH1.5P65L EH1.5N65L EH1.5R65L 0-l.5kV 0-65mA RG-59
EH2P50L EH2N50L EH2R50L 0-2kV 0-50mA RG-59
EH3P33L EH3N33L EH3R33L 0-3kV 0-33mA RG-59
EH5P20L EH5N20L EH5R20L 0-5kV 0-20mA RG-59
EH10P10 EH10N10 EH10R10 0-10kV 0-10mA RG-8U
EH15P6 EH15N6 EH15R6 0-15kV 0-6mA RG-8U
EH20P5 EH20N5 EH20R5 0-20kV 0-5mA RG-8U
EH25P4 EH25N4 EH25R4 0-25kV 0-4mA RG-8U
EH30P3 EH30N3 EH30R3 0-30kV 0-3mA RG-8U
EH40P2.5 EH40N2.5 EH40R2.5 0-40kV 0-2.5mA RG-8U
EH50P2 EH50N2 EH50R2 0-50kV 0-2mA RG-8U
EH60P1.5 EH60N1.5 EH60R1.5 0-60kV 0-1.5mA RG-8U

Remote Controls: Common, +10 volt

reference, interlock, current monitor,
current program, voltage monitor,
voltage program, HV enable/disable,
and ground provided on a rear panel
terminal block.

External Interlock: Open off, close on.
HV Enable/Disable: 0-1.5V off,

2.5-15V on.

Net Weight: 13 lbs.