EAC - Electro Automatic Corporation

System applications

Schools, Universities and Laboratories

Transistor-Linear regulation with Thyristor pre-regulator

Output power 80W, 160W, 320W, 640W

Output voltage 0...16, 0...32, 0...65, and 0...150V

Output current 0,4 to 40A

Adjustable constant voltage, coarse and fine

Adjustable constant current, coarse and fine

Volt- and Ammeter Class 2,5

Optionally: LCD-display 3½ digit, illuminated

Operation mode indicators

Remote sense operation selectable

Safety: EN60950

EMI: EN 50081 Part 1, EN 50082 Part 1

resp. EN 50081 Part 2, EN 50082 Part 2

19"-Rack module optional with CAN-BUS available

All units class 80W or 160W are available as 19" rack modules, 42TE, 260mm
deep. If this version is required, please suffix the model type with
“M“. The mains input is connected to the unit via an input socket
on the rear of the unit. Other than this the technical data of these units
correspond to the standard units.

MODEL NO.	Voltage		Current
EA-PS 7016-050	0...16V		0...5A
EA-PS 7016-100	0...16V		0...10A
EA-PS 7016-200	0...16V		0...20A
EA-PS 7016-400	0...16V		0...40A
EA-PS 7032-025	0...32V		0...2,5A
EA-PS 7032-050	0...32V		0...5A
EA-PS 7032-100	0...32V		0...10A
EA-PS 7032-200	0...32V		0...20A
EA-PS 7065-012	0...65V		0...1,2A
EA-PS 7065-025	0...65V		0...2,5A
EA-PS 7065-050	0...65V		0...5A
EA-PS 7065-100	0...65V		0...10A
EA-PS 7150-004	0...150V	0...0,4A
EA-PS 7150-010	0...150V	0...1A
EA-PS 7150-020	0...150V	0...2A
EA-PS 7150-040	0...150V	0...4A

General

Special features for this power supply series are the well proven technology,
compact size, and the wide product range.

All units can be used as constant voltage supplies with current limiting
or as constant current units with voltage limiting. Output voltage and current
can both be set continuously over the complete range using coarse and fine
potentiometers.

High reliability, even under extreme conditions, is achieved by thyristor
pre-regulation, Power MOS-FET end stages, temperature dependent fan regulation
and a housing construction with integrated cooling.

Mains Voltage: 230V ±10% or 115V ±10%/50/60Hz

Overload protection - Current limiting

The output is protected against sustained short circuits. The output current
can be set between zero and the nominal value by two potentiometers (coarse
and fine).

Remote sense

If the voltage drop along the connecting cable (max. 1V per cable) has to
be included in the regulation circuit, then the output voltage direct at
the load can be measured by the remote sense circuit. The connectors for
the sense line are mounted on the front panel below the sense ON/OFF
switch.

Overvoltage protection (OVP)

All units are fitted with overvoltage protection as standard. Using the Trimmer
"OVP" on the front panel, any value between 3V and 10% above the max. output
voltage can be set. If the preset OVP value is exceeded for any reason,
(defective component, faulty operation or application of an external voltage)
then the output will be short circuited via a thyristor within less than
1ms thus protecting the load and also the unit. By switching the power input
of the unit off and then on again the unit will be reset.

Meters

The units are fitted with independent analogue Volt- and Ammeters (Class
2,5). Optionally they can be fitted with illuminated 3½ digit LCD meters
with 13mm digits.

Operating mode indicators

The LED "CV" indicates that the unit is operating in constant voltage mode
and the LED "CC" that the unit has switched to constant current mode. This
change over occurs automatically according to the VA-characteristic
curve.

Parallel- and Series operation Two or more units can be operated
in series or in parallel, to achieve higher voltages or currents.

Ambient temperature

Operating temperature: 0...50°C

Storage temperature: -30...70°C

Humidity: max. 90% non condensing

Interference (EMI)

Interference feedback to the mains is suppressed according the following
standards: EN 50081 part 1 and EN 50082 part 1, respectively EN 50081 part
2 and EN 50082 part 2.

Test Voltages

All units are tested at the following voltages:

Transformer primary to chassis: 2000V AC

Transformer primary to secondary: 3750V AC

Transformer secondary to chassis: 500V AC

Options

1. Programming input 0...10V for voltage and current (Suffix "REM"). The
switch LOCAL/REMOTE and the input sockets are on the rear of the unit. 2.
Combined carrying handle and tilt stand (suffix "TG") (excluding 600W models)
3. Illuminated LCD-Meters (Suffix "LCD") IEEE BUS connection with EA-PSP
5512 is possible with option "REM".

LABORATORY POWER SUPPLIES WITH SUPPLEMENTARY OUTPUTS EA-PS 7000Z The units
of the series EA-PS 7000Z are based on the units described on the previous
described units PS 7000 and they are available with four additional supplementary
stabilised and short circuit protected outputs. These power supplies are
designed for the use in schools, laboratories and industry.

In the modern styled housing is a adjustable power supply, four supplementary
voltage supplies, and an illuminated LCD-Volt- and Ammeter, which can also
be used to measure external voltages and currents up to 100V by means of
the indicator selection switch.

Because of the high stability of the output voltage and the good dynamic
characteristics, even with large load variations as well as the integrated
current regulation make these units a must for even the most sophisticated
experimental setups.

The upper side of the housing is completely closed to prevent the inadvertent
introduction of objects or liquids into the unit.

The thyristor pre-regulation circuit ensures low power dissipation over the
complete output range.

The supplementary outputs (+5V/5A, -5V/1A, +12V/1A, -12V/1A) are isolated
from the adjustable supply. Also the outputs ±5V are isolated from the
±12 and ±15V outputs so that they may be connected in series if
a higher voltage is required.

The ±12Volt and ±15V outputs are selectable as required with the
switch 12V/15V on the front panel.

The outputs are sustained short circuit proof protecting the unit and the
load.

This means that these units are able to deliver all the necessary voltages
for working and experimenting with microprocessors, TTL, CMOS- and OP
AMP-circuits.

The combined carrying handle and tilt stand is available as option "TG".

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