BK Precision 1660 Service manual

Triple

B&K 1660

Output

DC POWER

SUPPLY

dlt*rur#ffi.i'

TEST INSTRUMENT

B&K 1660

waRl||ltc

SAFETY

Normal

-

electrical
voltage
thlougb the healt
ac

llrs should
curlent under
cause suc-h

habits
higb

voltage, and
contact rpith
know and obselve

1. There
supply.
powe!

use of

shock because

plesent.

is

be consideled
celtain conditioDs.

voltage

should include

a high voltage.

is little

Hoeever,

supply

a. If

b. If the equipbeDt

c. If

the equipment
hazard
equipment
observed.

high

floated
volta_ge

llot float
lespect

ttre equiproent
tage
voltage
retaiD

test equipment

testing

An electrica.I

wilt

stop most hu6an

can laore

all accepted plactices

that wiu
the followirg

dange!

that can

exists

voltage

to the potential

Inay

tbe po.re!

to

ilr aIly

capacitors

high

stee!

thele

unless

does

aot remove

in ary of
appea!

chassis or

oI

voltage

exposes you

ncust

sohetioes

shock

heartbeats.

dangelous

easily

current

You

safety plecautions:

of

electrical

ale sevelal

cleate

utde! test

tbe

under test

at

supply

earth

under

its circuits

before

long

and

Higher

ploduce

will sigtrificantly

a high

equipEent

the hazard),

its cilcuits),
at

the

unexpected points

output

ground.

test

is

unde!

baking

after

the equipraeDt

to a celtain

be perfolrbeal

causiDg

hazardous

voltage poses

a Iethal

that

will

a\eay

is the

is

flom

shock

voltage

point

,off',

IroE the dc

other possible

shock hazard;

"hot

is uDplugged

"powered

the

of connection,

to more tban

(and

nornra.I opelatiotr),

coDnectioDs or

amor,rnt of

\phere

l0

milliamps of

Voltage as Iow

sin-ce it can

an even

culreDt.

prevent

you!

leduce tbe lisk

chassis,,

o!

the

upi

polve!

in defective

tbat equipEent

is tuDed

contact

healt in case of accialental

output of this

test

tvDe. a

plecautions

(arxd

supply

tests.

curlent
as 35 volts
proaluce

gleate!

your

rrith
facto!

conditions using

selious shock

(usi

turning

that

equipEent

outputs

Remeober

equipbeot.

100 voit;

uses high vol_

discbalge higb_

SoEe cilcuits

off,

dangel floh

exposeil

tltleat

normal

ot Jtep

peak

high
pass

to

dc o!

a lethal

work

exposeal

if

power

off

g

uses

may be

that high

with

be_

you

this

the
are

Do

Z.

Use olly a poladzed

cha6sis,

reduces dange!

3. DoD't
neceasaly,
cilcuits.

4. lf

possible,
cation of
appear at rEerpected

case, and ground

expose high

Discbarge

its high

3-wi!e ac

telrainal

florD

electlical

vottage

T[ra off

higb-voltage

faEiliafize youlseu

voltage points.

{codtinued

neetllessly.

equipEe[t

poiuts

in delective

outlet.

ale conlected

shoclg

Remove

while

oa inside

Eaking

capacitols
with

the equipE

However,

This assures

to a

bousiags

test coDnectioDs

after

reEo\ring

ent beiDg testeal

letlembe!

equipmert.

rear

cover)

that the
good

aDd covels

powe!.

tbat high voltage

powe!

eartir

Stounil

only whea

in higb-voltage

and the

supply

anil

lc_

Dlay

lnstruction

B&K 1660

Manual

for

Jt1}lr,

Model 1660

Triple Output

DC

POWER SUPPLY

s(t^Ect--,t

MAXSE9 TNTER

ATONAL

CoPrr.

H( PEECES'-,J

MAGg

w

6470

TNTEFNAIIONAL

Corlland St . ChlcaSo,

coFP.

lL6O635

TABLE OF CONTENTS

B&K 1660

page

TESTINSTRUMENTSAFETY.

INTRODUCTION

FEArijllES
sPljcii::a-.!
CONTROLS

General
4-6.5
Ma.ster Suppl-v

Slave Suppl-v

r:lN:-i.

INDICATORS.

AJI

Conttols And lndicators

\'supply Controls And lndicators.

Controls ,{nd lndicatols .

Controls And Indicators

Rea-l Panel Controls ..

CPERAT]NG

Safet-v
Equipment

lndependent

Series Tracking
Pa-rallei

,1-6.5

INSTRUCTIONS

Prec:.rrtions

Precauiions

Use Of

"Master"

Opelation.

Tra.cking operaiion

V Poirel Supply Opelation.

APPLICATIONS

Generat..
Electronics

Servicing .
Electronics Manufacturing
Elec tlonics

Design Lab

. . . . .

Electlonics Education.
Battery
Split

Charging

SuPPI-\'

"S1ave"

Or

.

. , . .

. . . , .

SupPl]' ...

..

, . irside

front

., ".......I

.... .,,'4

..... -...

........

.........5

. . . . . . . . 5

. . . '

......

......

.....,,,,,9

...... ,9

.............9

..

.. ......13

.....'.16

.'......''.'.19

......,..,.

...'.........20

............20

.........20

. ' ' ' '...21

..... -.. ZI

.,..........21

coier

.......3

.. 5

.

., .

.?

'. . . .. .8

...

ZO

. ...,Z0

9

MAINTENANCE.

Replacement

Fuse

voltage

Line

Conversion

Adjustments.

lnstrument

Repai! Service.

WARRANTYSER\TCEINSTRUCTIONS....

UMITED ONE.YEAR

WARRANTY

.,.....

"..25

......

',.,...
..' .

--.. 25

...--26

... .'.'.30

......31

.............32

25

INTRODUCIION

B&K 1660

Tbe B & K-hecisi@ Model 1660 Triple
Output DC Powe! Supply is a higb
genela.l purpose
two supplies
ong with a 4-6.5 volt dc
supplies are adjustable with
fine voltage
and are capable of current output of
0-2 arops. The 4-6.5 v supply
output of 0-5 a.Eops, allowillg it to hanille ex­tensive digita.l Iogic circuitry. Two la.rge
palel-Eoormted
tor eithe! the
o{ each supply.

The
independendy or in
r:oodes. In the
supply
supply, MaxiEuo
supplies can still be set independently \rhen in
the selies tlackitrg
seri€s tlacking
supplies a.!e connected in se es, allowing a
singie output of 0-60
patallel

connected
gle

constant
caiioDs. The clossove! floB constant voltage
to constant
autoEatic. LED'S indicate tbe
voltage) or

operation. In constart

curlent limit loay
ations cause

lioit, the

lathe!
adjustable frorD 5% to 10070 oI b:axixouEr. IrI
constant current applications, the
voltage may be
cause cuJrent to
value,
oDeration at the Dreset value,

digital logic circuitly, The 0-5 allp capacity

tracks the voltage of the

0-30 V output

Both 0-30

tha!

the

The 4-6,5

with a 0-30

contlols

output

two 0-30 volt

tlacking

together iD

voltage o! constart cutrent appli-

cu.!!ent modes is sEooth a.nd

"CC"

the c{rlent to reach the

unit then regulates output cu!]ent

output

unit reverts to legulated voltage

power

dc

LED oete! displays caD moEi-

selies tlackilg Eode, the Slave

curlent settidg of the two

mode

Eode,

at up to 4 amps.

volt

supplies

(corBtant

be

voltage.

preset.

dlop below

V supply is ideal for

soulce. It

volt dc output and

output. The 0-30 v

both coarse aJId

precise

for

has a current

curtent

supplies can be opelated

one of

operating 6ode, In the

V at up to 2 aDcps. In the

parallel,

preset,

or output voltage

two

Maste! aIId Slave

the

the two supplies ale

allo\ring a sin-

may

"CV'

cu!!e!rt) l3ode of

voltage applications, a

when

Cullent liloits are

When load valiatioas

the

quality,

provides

settability

tlackilg

Ma.ste!

be used itr

(coDstant

va-ri-

load

preset

rDaxirDurD
legulated

powering

allows tbe supply to
cuits, Built-in ovelload
matically liEits to cutiebt output to a Eaxi­loull] of 5 aEps. An indicato!
supply is ovelloaded,

The Model 1660 exhibits excellent

Iation ard low

design

cuit
greatly

low output

dedtal daEage to the
ploper

curreat lioitilg
powered,

earth
comections. Wbed needed, the
Iality llay be stlapped to
polarity
tage. Additiona.Uy, the two 0-30 volt supplies
can be used as a
tive
aegative voltages and a cotDllon
one
of these coiligurations
datching
voltages.

especially tbe triple output
featues, make it an ideal
powe!

catioas. It can serve as a single
voltage
ply,
equipEent. It can
taneously
ation.
tages
may
power
temoved
evafuated vrhile
Drototv'De cilcrdt to

leduces intelnal

Revetse

coDnection to a.a extelnal voltage, and

as weII aE the

output is isolated flou

The

glound,

!!ay be floated to an extelnal vol-

voltages and

positive,

(tlacking)

features aJId versatility oI the unit,

The

supply for engineering lab appli­powe!

fo!

breadboard

valying voltages for ctcuit eva.lu-

It can

fo! evaluating diffelential aEplifiers. It

be used as a battery

individual circuit boalds o! caril6 while

llom the systeh, Its output ca'I be

pple

incolpolates

voltages.

polarity protection plevents

plotects

which

otre negative, and a cor!6on. AII

source, including tbe

provide

be used

charactelistics. The ciF

pre-legulato!,

a

powe!

poi/ef

the equipEeDt being

power

p€lmits

"split

supply" with two

a comDon negative, two

ca]l be

or dif f

and

Fotot]?e

provide

tracking

poweling

determine the cilcuit's

for large ci!-

protection

lights

supply

supply.

full

glound,

used

eling

genefal purpose

single o! sillul-

eliminator,

a bleadboald or

when

dis6ipation

lroE iE-

chassis

flexibility of

(+)

o!

o! either

positive,

with

{independent)

and

tracking

o! multi-

bias

circuits and

(+)

and

(-)

auto-

the

regu-

whic-h

acci-

alrd

(-)

po-

posi-

eithe!

suF

vol-

or

at

or

to

INTRODUCTION

B&K 1660

powel

quality

suppty requi!emerts.

Its labo!atory

specifications will loeet most engi-

neering labo"a.tory requi!ements.

The same featules that make the Mod€l

1660 a

good

choice fo! a]} engiaeeling lab also

Dake it a
state

good choice

electronic applications.

cations include selvice

fo! dost other solid

shops;

duction testing of coDrponents'

collplete equipment;

home use bv electronic

and

fo! school labolatolies,

hobbyists.

These apPli_

industrial

Pro-

assembli€s, and

FEATURES

B&K 1660

TRIPLE OUTPUT

Operates
Eacb
isolated

,{

ONE

Husky 0-to-5
ideal
circlritly,

extensive

TWO O-30

Master and
variable
and fine controls.
current

as thlee separate

has floating output

flom the other

TO 6.5 V SUPPLY

amp 4-to-6.5

fo! use

with Dost di$tal logic

Adequate cuilent capacity

circuitly.

VOLT SUPPLIES

Slave supply are continuously

ovel 0-to_30

Each supplv has a Z amp

capacity.

and is completely

two.

volt

range with coarse

UMQUE TRACKING FEATURE

The two

0-to-30 V supplies can
so that the Slave supply tracks
supply. Outputs

positive

voltages
two negative
tive, or one
a neutra.l

common.

SINGII G6O

Series
and Stave

tracking feature

supplies

V SUPPLY

can be strapped

with a comDon

volLages

dith a common

positive and

allows use of Master

as one 0-to-60 V. Z alnp

one negative with

supply.

SNNGIJ

O_30 V 4

Palallel

Maste! and

supply

(through

CONSTANT

with

AMP SUPPLY

tracking

feature allows

Slave supply as

a :1 amp current capacity

MasteF

output terminals)

VOLTAGE OR CONSTANT

CURRENT

The

Master and

regulated dc

voltage output or regulated

slav-

power

supplies.

volt suPpty is

for

be operated

the Master

fot two

negatrve)

posi_

lise of

a 0-to'30

.Lpplias pro! d-

dc

.urent output- Crossover is sEooth

DISPLAY

LED

Two large, easy-to-read

displays monitol outPut
cu.relrt of aU three
meters allows
voltage
Slave supplies

visiblilty in

auows

LABORATORY

Excellent

LED INDICATORS

Identify

PRE-REGULATOR

Limits
reliability

ISOLATED

Either

OVERI-OAD

Fullv

to 100%
Vaste! and Slave
under

V

REVERSE POLAR.ITY

Prevents damage

external voltage

HOOK.UP

,supplied

hook-up

supplies.

simultaneous

metering when

in tracking

bright

resolution

o!

loq

of 0.1 volt or 0.1 amp.

QUAIITY

!eeulation.

mode

of ope!ation.

1o$ tiPPle.

internal dissipation

and ef f iciency.

OUTPUT

pola.rity

be floated or

may

PROTECTION

adjustable cullent

of mdimurn output

supplies

test and the

er suPPlY.

Poq

PROIECTION

porter supplv

to

of revelse

CABLES

with three

sets of red

leads.

and

LED 3-1l2

digit

voltage or output

Use of two

current

M3ste! alld

use

oPeratioD.

light.

and

Good

Meter

{o! hiehe.

grounded.

limiting

(from

5%

curentl lor

protects

circurt

lrcrm

polaritv

ard black

SPBCIFICATIONS

B&K 1660

ITASTBR AND $../lVE SUPPLIT-S
outFt

OutFrt

Load

LiDe R*ulatioD 108

vortrge

0 v

{+0/-30

Curl€ot

(+0/-30

0 A

Regulatio!

<0.01%+

3 bV.

Rage,

mv)

to 30 v

Lieit

Rdge:

EA) to 2 A

(Cdstart

-

132 V

(3

+

+(3Vo

to 7Vo).

Voltage):

(Consta"r

Voltage):

<

0.01% - 3 bv.

Rittrtle

Recoeery

Tehlr

Load R€gulation

Lile Reguration

(CoDsteDt

<

I EV RMS.

TlEe

<

loo

ss'

Coclficieot

=

ppb/oc.

3OO

<

0.2Vo

+3

Voltag€): Peel Meter Accuract':

(Constart

(C@rtart

(CcE3ta[t

Voltage):

Voltage):

CrErent]:

mA-

108 - l3z

(c@start

v

CErent):

<

Rilple

O.Z7o

Cr|f!€ot

+3

E'A.

(at

108

V Io!

CoDstant

Crttfeot]:

<

3 IlA RMS.

Tbackiry

t1.Zqo

P&el lileter

i0.5% + 2

(S€ries):

+10

nV,

Accrracy

digits.

(volts):

b 1qo)'

--

Load Reeulatiod

ov

(0

=

l0

Lire RegutatioD

(C@start

to 5 A load)'

-

108

l3z v

Vottage):

(coEtaDt

VoltaSe):

<10

DcV.

Ripple A.!d Nobe:

=ZrbVRMS,

OvelYoltage hotection Thteshold:

Same as Maste!

Suppiy Mete!.

cENERAL
Poeer

po;'er

RequireEents:

110/1zo/220/z4o

vAC

CoDsurnptioD

ApproxiEately

320

!1070. s0/60 Ilz-

(FuIy

Loaded):

\4t'

hotection:

Revelse poladty

protection

liEiting.

DiDeDsiors

165 x

(E

:< Y r D):

315 x 381 bra

(12.4

x 15 x 6.5"),

E'eigbt:

10 kg

(22

lbs)'

and cur!ent

pdel

,F&5
OutFrt Volt.€e

Metet

% + 2 digits.

J0,5

V

SUppLy

4

Y

t57o

to 6.5 V

Acc|racr

RaDg€:

r5Vo.

(cEreDt):

TffiS,"Tff;?up

Two

ea.rth
Two 5A, 250V
Schematic

Ootionel

Fp-tO l6-amp test

ground
DiagraB &

Accessori€3:

bus

fuses

leads, I !ed,

stlaps.

(spares),

palts

leads

List,

(t

red, 1

I black.

black).

GENERAL

B&K 1660

CONTROLS AND INDICATORS

1. POWER
off, When
nally iuuEi ated

Z. TRACKING

button switches
oode, series
t!acking

a. When

(out),

dent

SLAVE

pletely ind€Pendent

anotDel,
When

b,

and

(out),

SERIES
mum
using the MASTER

tlols
of the SLAVE
tage
MASTER
roode
terminal
is connect€d
nal
This a]lo\rs the
used as

When both switches

c.

(in),

PARALLEL
MASTER
wiled
the

are set using
trols.

outputs

vidual

or

used

4 A capability,

(F30

3.

V/+6.5
TER/,1-6.5
switch is

CONTROLS AND INDICATORS

Ssitch-

powel is

Mode

mode

both

the

mode

Tutns

Power

on, sxitch

to

serve

as a

Seitch€s.

select INDEPendent

that

tlacking

follows:

as

mode, or

switches are

unit is

in the INDEPen-

arld the MASTER

power suPPlies are com-

the left switch is

the right

the r]nit is in

mode. In this

voltage of

switch is

the TRACKING

mode, maxi-

both suPPlies

VOLTAGE

(voltage

outPut telminals

at

supply ttacks

at the output

supplvl.

of operatiod

(red)

to the

(blackl

of the MASTER supPly.

teloinals

AIso. in

the

of the sLAvE supply

negative termi-

two suPplies

one 0- to-60

volt suPPIY.

ate engaged

the uiit is

in the TRACKING

rnode, ln this dode

SLAVE suPPlies

and

together in

maxilouE

palallel

cuirent and

the MASTER

MASTER alrd

The

can be used

(but

tracking)

just

the MASTER output

as two iDdi-

power

as a 0-to-30 volt supply

position'

V

Controls

V Ssitcb

V LED

in tbe G30

DisPkY.

and

on

is inter-

light.

Pilot

push-

Two

Parauel

disengag€d

ard

llom one

engaged

disengaged

is set

con-

voi-

the

of the

this

Positive

to be

both

and

voltage

con-

SLAVE

suPPlies

can be

with a

MAS-

wlen this

the LED

(in)

the
a.!e

display looniiors

when this

position.

V

Switcb- Selects

mode for the

the

.1.

supply,
tr-5

the 4-6.5 \' supply.

tors
A/V

meterirg
supply or

oD setting
When

read from

in the A

the

play. When in

tage is
LED

MASTER/4-6.5

5.
dis?tay

the O-30

supply

read

Dispray.

indicates

v

MASTER

(depending

MASTER

4'6.5 V SUPPLY
INDICATORS

'-'

6.

?.

Tedrinal

output
"+"

T€rniral

terminal

output terminal

8.

Voltag€

Level C€'rtrol.
voltage to!
terclockwise

4 V. Clockwise

voltage to a

clockwise

4_6.5

9.

tage to
cleases

(full

A OVERLOAD

5
load on
1arge.

MASTER SUPPLY
INDICATORS

(CoDstant

C.C.

10.
the

lights

ConstaDt

LED

MASTER

the

switch

disPlay

LED

the

current

MASTER

,F6.5

of

(amPs)

(F30

V supply

V/,1-6.5

position, cu.rlent

MASTER/,|6.5 V LED

the V

(vo1ts)

from the

v LED

voltag€

supply

on the

A,/V aid

CONTROLS

(Blact).

for 4-6.5

(Red)-

4-6.5 v supPly.

for

position'

MASTER/

Dispray. Digital

or cuffent

or the'1-6.5

setting

0.30

AND

Negative

V suPPIy'

Positive

Adjusts

4'6.5 V

!otation

supply, Fully

adjusts

rotation

maximuEr

rotation).

IDdicatot.

Volt suPply

CONTROLS

Crr'ledt)

becoloes

AND

Irdicator.

when MASTER

Cu$e$t

mode'

(0-30

is i!

moni-

cr voltag€

0-30

(dep€ndiBg

switch).

V

Dis-

vol-

'F6.5

of the

V/4'6.5

Polatity

Polarity

output

coun-

otttput

of 6'5

Lights

SUPPIY

when

is in

The Powe!

V)

the

v

is

V

at

v
'V

voi_

in-

v

too

Red

CONTROLS

B&K 1660

AlfD INDICATORS

-l

I

66

0l

Supply
the va.Iue
control.

when
MASTER
Constant

11.

C.V.
LED lights

ir the
Power

tage

VOLTAGE
or Parallel
dicator
SLAVE supplies
tage

rz.

COARSE

adju.stment
MASTER
coarse adjustEenr
Eouh output
when eithe! paraUel

regulates

this indicato!

(C@staDt

Constant

Supply

at the value

is lit, both

mode,

26

25

Fig.

l. Front

the

output

set by the IIASTER

In the Parallel

aJId

SLAVE

Current

when

controls.

Tracking

VOLTAGE

of

supply.

Eode.

Voltage)

the MASTER

Voltage

regulates

set by

are

the output

coutlol

voltage

Tracking

is

lit,

supplies

Iadjcator.

the

ln

erther the

Eode. when

the

MASTER

in the

of the

Corttol.

vottage

Atso

o!

seli€s

CoDsta.nt

fo!
SLAVE

2021

17

Panet

culleDt
CURRENT

both trle

are in

Green

suppty

mode,

output vot,

the

MASTER

SeFies

rhrs

Codse

of

functjons

the maxi

supply

tracunp

I8

Eod€j

rne

The

in-

alrd

Vol-

the

a

ti;

'.li+:,.

r

E

15

Contlols

at

is

f

I

EI

And Indicatols.

Eode is
MASTER/4.6.5
voltage
modes ale

13.

FINE VOLTAGE
ment
supply.
Dent

voltage
palallel
lected.
aE.R/4.5
tage
IIrodes

CURRENT
Iimil
tage rDode.
value

lent mode.

the

MASTER/4.6.5

the

metedng

E

selected.

iv)

and master l(F30

selected.

of

output volrage

A160

control

of rhe

ol

rV)

are

of MASTER

of

MASTER

current {A)

modes are

firnctions
fo!
SLAVE

se es

Read

V IlD

afld Daste}

selected.

C@trol.

Adjusts

Cutrent

I

Read

V I,ED

Cmbol.

the value

Distr'lay

the

Ea-{iEum

suppty when eitier

trackiDg

Display

,(F30

suppty

constant

supply

can be

V

LED Display

and

rDaster

selected,

l

3

l3

l4

the value

Fine

of the

as

fine adjust-

mode

on

when

l/

Adjusts

in constant vol-

in constant

on

when

V) Eeterins

adrusr-

MASIIER

outDut

is se-

the MAS-

the vol-

meterins

currenr
curlent

cuJ-

aead ftolc

when

((F30

the

the

u

CONTROI.S

B&K 1660

AND INDICATORS

'+'

15,

16. GND

17.

TerEiral

output telminal

ply. Also serves

terminal
series

Cbassis
'-'

output
ply.

telroinai
ation.
telminal

positive telminal oI

tlacking

T€fmiDal

T€rminal

AIso selves

(Re(l).

for 4 A

oPelatiotl.

Ground.

Elack).

telminal

for 4 A

In series

is intelnally

o

€

Fig. Z. Reat

Positive
fo! the
as the

palallel aJId 0-to-60 V

(Green).

for the MASTER sup- 20.

as the negative

palallel tlackiDg opeF

tlacking opelation.

the SLAVE suplly'

MASTER suF

Positive Polarity

Negative

tied to the

polarity

Earth

polarity

Polarity

o

Panel Controls'

aJId

this

{+)

19.

C,C.
cator. Red LED

supply is in the Constant

The Powe! Supply
current
CURRENT
trackiag
lights
mode is selected.

COARSE
adjustment of the
SLAVE
mode is selected.
SLAVE
meteling rDode is

(C@stant

at the value set bv the

contlol

o! INDEPendent

when the TRACKING

VOLTAGE Cdlrol,

supply when

DisCay when the

LED

Curr€.rt)/PARalle-r

lights when SLAVE

Culreirt

legulates the output

when in the selies

modes. AIso

PARALLEL

outPut voltage

the INDEPerdent

Read the

selected.

value on the

voltage

I

t-

mode'

SLAVE

Coarse

of the

(9

SLAVE SUPPLY

INDICATORS

18. C.V.

(CoD3taDt

LED lights

the Constant
Supply
the value set

regulates

CONTROIS

Voltage) Indicato!.

when the SLAVE

Voltage

by the SLAVE

AND

mode. The Power

tle output

Green

supply is in

voltage at

VOLTAGE

21.

FINE
xoent of output
suppiy
selected.
LED Display

Eetering

22.

CURRENT
limit
tage

VOLTAGE Control.

voltage of the SLAVE

when the INDEPendent

Read the value

when the

mode is selected.

C@trol
of SLAVE supply
trode. Adjusts

Adjusts
in constant

co$stant

adjust-

Fine

Eode is

on the SLAVE

voltage

19

curent

vol-

curlent

CONTROLS

B&K 1660

AND INDICATORS

23.

24.

25.

value

rent

the

lent
A/V SFitc-b.

metering
supply,
culnt
Display. When
voltage
Display.

SLAVE
iddicates voltage
0-30 V sl-AvE
settiDg

'+'

output

of SLAVE supply

mode.

SLAVE LED Display

(A)

of the

Tetbiaal

telminal for

Current

metering mode

Selects

mode for

When in

is lead from

in the v

is read lrom

LED Display.

supply

A/V switch),

(Red).

in

can be .ead

is selecled.

current or

tbe

the A

the
the

or

current

(depending

positive

the

constant

wher

0-30 V

(aqlps)

SLAVE

(volts)

SLAVE

Digitat

SLAVE

cu;!,

from

the

cur,

voltage

SLAVE

positiotl,

LED

position,

I-ED

disptay

at

the

on

the

potadty

suppty,

26.

27.

REAR

28.

29.

In series
nal

is connected

of

the MASTER

cND TerEciDa.l
Cha.ssis

"-"

Terminal

output
AIso
miDal

PANEL
Fuse.
Line

tracking

Ground.

(Blact).

terminal fo!

selves as

Io" 0-to-60

CONTROLS

Cold

operation,

to the

supply.

the negative polarity

negative

(c!een).

Negative pot:rity

the SLAVE

V series

this

terminal

Ealth

supply.

tracking

termi*

and

te!-

opeF

OPERATING

B&K 1660

INSTRI'CTIONS

SA.FETY PRECAUIIONS

cAuttoL

Avoid

at the

Wben the unit is

a&ounts
of its outputs,

becoEe

the heat sinks
could
damage to the equipEeEt in con­tact

Use only

outlet.

power supply chassis, case, and

ground terEinal are connected
to a

duces dange!

shock.

There Eay be
electrical shock if the

supply

extelDal
equipdent beiDg
contain
a sbock
cautioD, Ii the
output is
a voltage ratbe! than earth
grotllld)

supply

test
Never float the
a

100

eattb

EQIJIPXENT PRICAUTIO

Avoid
teEpelatures above
sufficient air space
lear of
tior to

prevent

contacting

oI the

lear

of cu$ent

the lteat sinks can

very hot. CoDtacting

when

lesult itr skin burDs o!

with thetn.

polarized

a

This assures

good

earth

output is conDected

high voltage.

high voltage and

hazald"

floated

turn off

a.Ild

the

when making connections.

potential

volts

rising the

the

peak

ground"

powe^r

+40"

alound

powe!

supply

internal heat build-ul.

the heat sinks

power

ploviding

ground

flom

great

poweled

power

(lefelenced

equipEelt

power

gleat€!

with lespect

for

supply,

large

at any or all

ale

they

3-wi!e ac

that the

and re-

electlical

danger of

powe!

to

SoDe

plesent

Obse!ve

supply

power

the

uDde!

supply

S

supply

C. Always allow

heat

the

effective ladia-

hot

an

may

to

to

than

to

ambiert

in

sink at the

Althottgh the

against

being

tection.
incoffect
under test.

cuit being
integrated cilcuits will not

spikes
under

terEinal,s of the

the

turtted on or off.

INDEPENDENT USE OF

.SLAVE'

plovide

aDps. This
MASTER ard SLAVE supplies only when they

are used independently from one another.
When used in the

mode, the opelatiEg contlols of the t\ro
supplies are colt|pletely independent and
supply can be used ildividually o! both can be
used

covered be!e. Several
in the APPLICATIONS section oI this Eanual.

Eool-r{)

l. Diseugage both TRACKING mode

2. TUrn off the

3. Condect the

levelse

powered

Always

polarity

Do not exceed tbe voltage

powered-

There is tro $eed to wo!!y

o! ovelshoot

test.

preset

The

sidultaneou.sly. Basic operation is

switches
powe!
operating rbode.

equipEent to be

device being
llinal of the

value as

SUPPLY

"MASTER"

a

0-to-30

power
polarity
Eay not include

calefully obselve

loay

The voltag€ between

power

and

volt output at

plocedure

(both

supply is in the INDEPeDdent

powered

powe!

supply is

daEage, the cilcuit

daEage

rating ot the ci!-

Many transistots and

*ithstand voltage

damagiDg

supply neve!

the POWER switch

'I,ASTER'

"SLAVE"

covers the use of tbe

INDEPendent

vadations

switches out) so that the

power
poweled

positive polarity

supply and

to the

supply.

protected

such

the equiprdent

about voltage

the equipEent

tbe output

OR

supplies each

up to 2.0

are covered

during hook-up.

red

PIo-

polarity;

exceeds

opelating

powe!
eithe!

the

of the

(+)

teF

is

OPERATING

B&K 1660

I !.!

INSTRUCTIONS

,l

rE.[

_'1

f'l a'1 1 | t- t-

lt

s.u

l-',r.f,

I

Fig.

3. Independent

f D,D

Operation Grounding Possibilities.

10

OPERATING

B&K 1660

INSTRUCTIONS

i[.

Connect
device
terminal

Fig. 3 illustlates

5.
ities

6, Observe

being
verse
circuit
Use color coded
the sets
for convenience
red for

when used in the INDEPendent

a. If t]re

equipoent
is
may
stlapping the
the
in Fig. 3A.

b. Similarly,

be

terminal
miRal as shown in

c. If

required, the codfiguratio. of Fig,
3C
Fig. 3C should
is

common wiih either the

negative

d. If the

equipEent
r^fF fr^m hoih thF Dositive

negative

the connection

polarity plotection,

negative

the

being

also the chassis

groulded

aI} ea-lth

not krown whether the chassis is

poweled

can lesult

(+)

povreled

of the

g!€en

may be used. The scheEe in

ploper

supplied

powe!

the

negative

ol

glounded

be

(GND)

the

by strapping the red

to the

$ourd

polality,

chassis or

being

polarity

pola.rity.

not equipped with re-

is

hook-up leads, such as

\tith

in

and black

pola]ity

to the black

supply.

glounding possibil-

polality

ctcuit

black

positive polarity

also be used where it

froE reverse

being

o!

to eatth by

(-)

teroinal as sho\rn

gleen

Fig.

3B.

refer€nce is not

common of the

powered

power

shown in Fig.

II

darnage

powe!

the

identifying

(-).

for

of the

of

powered

common,
telminal to

(GND)

Positive

is sePa-

inputs'

3D.
cilcuit

the

to the

polarity,

supply'

polarity,

the

can

ter

and
use

H

it

(+)

o!

device
limit

Set FINE
imu&
Turn off

3.

procedure

position

Increase

6.

7.

value

n'^.o;!!i4 in ihi< c..ri^rl

and

COARSE VOLTACE

(f

the device to be

Turn on POWER switch. The CV
cato!

should light.
Set the meter selection

mode.

LED display
FINE
specific

Set the
position

mode and note the
display.

control

Fead oulPrt !c iaQe

a'ro currsnl

powered

to be

{see

VOLTAGE

ully cotrnterclockwise).

power

in this section).

to

the

value,
meter selection switch to the A

to select the cu$ent oetFring

suppll' and corurect

select the

VOLTAGE setting until the

rea.ds the desired valu€. The

permits easier setting

lrom dspa!

\i

and set the cutlent

"Setting

control

powered

v^'tae-

load curient on the

\l

oc 4{EF sumY

- '_]

I [.C

t.rl:

CuFent

control

(see

switch to the

CV

Limit"

to c€nter

ro:rin

"Hook-Up"

r0cai0r

it to

indi

mete?ing

to

01i

,F0

tr.0,

V

a

Make sure that

?.

sufficieDt cuilent
sistance between

the circuits
Ieads
ra.ted fo! 3 arDps.

Typical C('rstant

Befoie connecting

1.

eled to the
maximum

supplied with the

the hook-uP leads offer

capability and low !e-

power

the

being

Voltage

power

safe load curent for the

poweled.

powei

OFlation

the device to be

supply, determine the

supply and

Th€ hook-up

supply

are

pow-

Fig. 4, Tnical

11

EC

Constant

voltage

!013q€

Operation'