Global Specialties 1302B Bedienungsanleitung

73o.2E-

DC Povver Supply

Instruetion

Manua|

GLOBAL

GLOBALSPECIALTIES

1486HighlandAve.

Unit2

Cheshire,

CT06410

Tel:

(203)

272-3285

Fax:

(203)

272-4330

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

TABLE OF co.n'TEA'TS

GENERAL

INFORMATION ...

page

SPECIFICATIONS page

LocATloN

ANDDESCRIPTION

oF OPERATING

coNTRoLS........... paoe

lNSrALLArloN......... puJ"

OPERATING

INSTRUCTIONS ...

paqe

POWER

SUPPLY

OPERATION............ ...

p"J"

OPERATING

PRECAUTIONS page

CASEDISASSEMBLY

ANDASSEMBLY ..

page

MAINTENANCE

AND

RECALIBRATION

... ........

page

SERVICE

AND

WARRANTY

INFORMATION

......... ......

pase

PARr

LlSr... ealera

SCHEMATIC

ANDBOARD

LAYOUT paqe

LIST OF TLLUS-TF|ATIOruS

FIGURE

1.Location

ofoperating

controls ...

page

FIGURE

Seriesconnection:

supply

@2.0A ......

page

FIGURE

24.

Seriesconnection:

5to

69Vsupply

@2.0A ......

page

FIGURE

28.

Seriesconnection:for

asplit

power

supply,t32y @2.0A page

FIGURE

3.Exampleofanimproper

connection:

series

subtraction

...............

Page

FIGURE

4.Parallel

connection

variable

supplies

with

equalizing

resistors.

Page'14

LIST OF TA['.LES

TABLE1.

power

supplyinterconnections ...

paqe

GEruEF|AL TNFORMATTON

DESGRIPTION

The

13028Power

Supplyis

high

performance

triple

output

power

supply

for

industrial

andlaboratory

use.

Performance

and

economy

have

successfully

been

combined

provide

acompact,

fully

solid

state

in-

stru

ment.

The

two

main

outputs

arecontinuously

variable

from

Oto

32V

and

can

supply2A

max

each.They

can

beoperated

constant

voltage

con-

stant

current

modes.

Automatic

overload

protection

achieved

fast

transition

from

CVto

CCmode

and

may

set

any

point

inthe

volt-

age

currentrange.

Separatefront

panel

meters

are

provided

tomonitor

outputvoltage

andload

currentfor

the

32V

sections.

Switch

selection

provided

enable

eithervoltage

current

monitoring

for

each

section.

addition,

aseparate

5Voutput

provided

with

variation

from

4.5VDC

5.5VDC

maximum

&maximum

current

5Awith

feedback

current

limit.

The

outputvoltage

andcurrent

limit

settings

ofthe

0-32V

outputs

can

bevaried

manually

usingfront

panel

controls.

All

the

outputs

arefloatingi.e.

neither

the

output

positive

terminal

nor

the

negative

terminal

(nor

any

point

within

the

regulator

circuitry)

con-

nected

ground.

The

power

supplyis

designed

operatein

ambient

temperature

ofup

to40'C

andfull

outputmay

drawn

continuouslyprovided

free

air

circulation

allowed.The

unitworks

from

mains

supply

of115VAC,

47-63

Hz.

GLOBAL*ECALT'ES

2INS-II]TJMI:NIS

SPECIFICAT'OA]S;

Detailed

specifications

ofthe

power

supply

are

given

thefollowing

table.

Dual

0to32VSection

Output

Voltage

I&ll: 0-32VDC

continuously

variable

byvoltage

control.

Load

Current|&ll: 0-2Ampmax.,

continuously

variable

current

control,

ConstantVoltage

Mode

Operation:

Line

Regulation: r 0.01"/"+ZmV

for

*'10%

line

change.

Load

Regulation: +

0.01%+2mV

forload

changefrom

zero

tofullload

Ripple

&Noise: 1

mVrmsmax.

Constant

Current

Mode

Operation:

LineRegulation: t 0.1"/"+250ptA

for

*10%

line

change.

Load

Regulation: -F

0.1'/"

+250pA

for

changein

output

voltage

fromzero

maxtmum.

Ripple

&Noise: 0.8mArms

max.

Metering:

TWo

separate

3digitDPMs

are

provided

for

0/PI

and

0/Pll.

Meter

Selection: Switchselectionforvoltage

currentmonitoring.

Meter

Accuracy: x.

0.5o/"ofrdg.+2counts.

OverloadProtection: Automatic

overload

and

short

circuit

protection.

Section

OutputVoltage: 4.5VDC

to5.5VDC.

OutputCurrent: 5

Amax.withfeedback

current

limit,

Ripple

&Noise: 2mVrmsmax.

General

OperatingTemperature:0to40'C.

lnputVoltage: 115

VAC,47

to63Hz.

Dimensions: 230mm(W)x

285mm(D)

'133

mm(H)

Weight: 13.0

Kg.net

approx.

/R aLaBAL*EaALTTE

$l-

LOCATTON ANE' E'Esi,c.HIPTIo.N OF

OPEHATTNG c'on,TFro,-s.

ordertouse

mended

thatthe

this

instrument.

thefull

capabilities

ofthe

userbecomefamiliar

with1302-8,

itishighly

recom-

the

controls

associated

with

14 12 3 10 9 7 8

Figure1.Location

ofoperating

controls.

z- Power

switch

A-Supply

LED

Display:Displaysvoltage

orcurrent

32V.

A-Current

Control:Clockwiserotation

increases

adjustable

current

limit.

B-Current

Control:Clockwiserotation

increases

adjustable

current

limit.

B-Supply

LEDDisplay:Displaysvoltage

orcurrent

0to

32V.

B-Supply

V/A

selection:

V-displays

outputvoltage;

A-displays

output

current.

B-Variablevoltage

control:

Clockwise

rotation

increases

variable

voltagefrom

Oto32V

B-Output

Terminals:Red

terminal

(+);

Black

terminalis

(-)

9- Groundterminal:

Connected

chassis

andearth

through

third

wire

Line

cord.

10-

Volt

OutputTerminals:

Redterminal

(+);

Black

terminal

(-)

Volt

control.

Screwdriver

adjustment

forvariation

from

4.5V

-5.5V.

12-

A-Output

terminals:

Red

terminalis

(+)

Black

terminal

(-)

l3-A-Variable

voltage

control:

Clockwise

rotatior-r

increases

variable

voltaqefrom

0-32

14-

A-Supply

V/A

Selection:

V-displays

output

voltage;

A-displays

output

rrent.

'-f 9ECIALTIES

@ffi I\]IS

INSTALIJATIO.N

INITIAL 'NSPEG-TION

soon

the

power

supplyunitis

unpacked

inspect

for

any

damage

thatmay

have

occurred

duringtransit.

Save

all

packing

material

until

inspection

completed.lf

anydamage

isfound,

notify

the

carriersim-

mediately.

Ourauthorizedrepresentatives

should

also

benotified.

PHYSICAL CHECK

This

check

shouldconfirmthat

there

areno

broken

knobs

connec-

tors,

thatthe

cabinetand

panel

surfaces

arefree

dents

andscratches

and

the

meters

are

not

scratched

and

cracked.

ELECTRICAL CHECK

The

power

supplyunitshould

bechecked

against

electrical

specifica-

tions.Anin-cabinet

performance

checkwill

verify

proper

operation.

,NSTALLATI()N DATA

The

power

supplyunit

shippedready

for

bench

operation.ltisneces-

saryonlyto

connect

the

unitto

arated

sourceof

power

and

itisready

foroperation.

LOCATION

The

power

supplyunit

isnaturally

cooled.

Sufficient

space

shouldbe

kept

aroundtheunit

while

operation,

that

heat

sinks

donotremain

confinedspaceorcloseto

anotherheating

source.The

ambient

temperature

oftheareaaroundthe

unit

should

belessthan40'C.

INPUT POWER REQUIREMENTS

The

power

supply

unit

may

beoperated

continuously

frominput

voltage

115volts

47to63Hz

power

source.

/A GLoBAL*EcALTrre

E M

CKAG'NG FOH SHIPMENT

ensure

safe

shipment

ofthe

power

supply

unit,

itis

recommended

that

the

package

designedfor.

the

unit

used.

The

original

packaging

material

reusable.

sureto

attach

atag

tothe

unit

specifying

the

owner,

andthefault

observedwith

abrief

description.(See

Page

tor

service

information).

REMOVING COVER

The

top

coverisretained

place

6selftapping

screws

&twohandle

mounting

screws.

Toremove

cover,

proceed

asfollows:

a)Remove

the

chrome-plated

handle

caps.

b)Remove

the

handlemounting

screws.

c) Remove

the

selftapping

screws

sides.

d)Lift

the

cover

from

rear

side,

slide

backwards

pull.

6/lR cLoBALsEcrALTrEs

Etffi

OPERATI N G'ruS7FT UCT IO^IS

The

13028

power

supplyconsists

ofthree

sections.

The

twomain

out-

puts

arecontinuouslyvariablefrom

32Vand

cansupply2A

max.

each.

Inaddition,aseparate

5Voutputis

provided

withvariation

from

4.5VDC

to5.5VDC

maximum

&maximum

current

with

feedback

currentlimit.

TURN ON S.ETTING PROCEDURE:

Thefollowing

procedure

describesthe

use

ofcontrols

andindicators.

a)Set'POWERON'Switch,ON.

b)Adjustthe

'VOLTAGE"

controls

and

"CURRENT'

controls.

CONSTANT VOLTAGE MODE:

Toselect

aconstant

voltageoutput,

proceed

follows:

a)Adjustdesired

voltage

byadjustingthevoltage

controls.

b)Whenin

mode

LEDshould

glow.

c) lf

aloadchangecausesthe

current

limit

tobe

exceeded,the

power

supplywillautomaticallycrossoverto

constant

currentoutput

pre-

set

current

limitandoutputvoltagewill

drop

proportionately.

set-

ting

thecurrent

limit,

allowance

must

bemadefor

high

peak

currents

which

can

causeunwantedcrossover.

cONSTANT CUHRENT MODE

select

aconstantcurrentoutput,

proceed

follows:

a)Adjust

desiredcurrent

byadjustingthe

current

controls.

Whenin

modeCC

LED

should

olow.

GLOBAL SPECAL:|'ES 7

INSTRIJMENI'S

c) if

aload

changecausesthevoltage

limit

exceeded,

the

power

supplywill

automaticallycross

overto

constant

voltage

output

atthe

preset

voltage

limit

andoutput

currentwill

drop

proportionately.

settingvoltage

limit,

allowancemust

bemadefor

high

peak

voltages

which

cancauseunwanted

crossover.

LOAD CONNECTIONS:

The

load

shouldbeconnectedtothe

power

supply

output

terminals

using

separate

pairs

ofconnecting

wires.Thiswill

minimize

mutual

cou-

pling

effectsbetweenloadsandwillretain

full

advantage

ofthe low

outputimpedance

ofthe

power

supply.Each

pair

ofconnectingwires

shouldbe

asshortas

possible

andtwisted

shieldedtoreduce

noise

pick

up.

(lf

a shielded

pair

isused,connect

one

endofthe

shieldto

ground

power

supplyand

leave

theother

end

unconnected).

Positive

ornegativevoltage

canbeobtainedfrom

this

supply

ground-

ing

eitheroneofthe

output

terminals

orone

endoftheload.

Always

use

twoleads

toconnectloadtothe

supply,

regardless

where

the

setup

grounded.

Thiswill

eliminateany

possibility

the

outputcurrentre-

turn

paths

throughthe

power

source

ground

which

would

damagethe

line

cord

plug.

Thissupplycanalso

beoperatedupto

I300VDC

above

ground,

ifneither

output

terminalis

grounded.

X^ . GLaE AL gEcaLTrEs

IW ^--r.-t"^,-.'

POWER SUPPLY OPEHATTON

INITIAL s,ETUP

Refer

tothe

preceding

sectionfor

initial

set

ofthe

power

supply.

OPE

RATING'NSTF U

CTI ONS

Proper

operation

ofmost

circuitry

depends

correct

supply

voltages.

isrecommended

that

bothA andBsupplies

set

tothe

required

voltage

levelswith

theirloads

disconnected.

When

the

desired

voltage

set

(using

theA

Bvariable

voltage

control),turn

the

power

OFF,

connect

eachload

tothe

proper

supply,

then

turnthe

power

oN.

output

currentof

eithersupply

may

beread

simply

changing

the

V/A

switch

fromVto

Aposition.

COM B'N'NG POWER SU PPL'ES

Each

ofthe

three

power

supplies

may

used

independently.

Any

two

all

three

may

usedsimultaneously,

desired.Power

supplies

may

combinedto

get

voltage

orcurrent

asdescribed

below

andinthe

accompanying

interconnection

table.

(See

Table

Power

Supply Connection Voltage

Range Max.

Current

A+B

A+5V

orB

SV+A

and

A+B

Soi",

Parallelwith

Equalizingresistors

Series

SplitSupply

4.5-5.5V

0-32V

0-64V

0-32V

5-37V

s-69V

-plus

32V

0-minus

32V

5.0A

2.04

2.0A

2.0v

4.0A

2.04

2.0A

2.04

Table1.DCPower

supplyinterconnections.

GLOBAL ffiECALTTES 9

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