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TripleOutput
DC POWER SUPPLY
dlt*rur#ffi.i'
B&K 1660
TEST INSTRUMENT SAFETY
waRl||ltc
Normal use of test equipment exposes you to a celtain amor,rnt of dangel floh
-
electrical shock because testing ncust sohetioes be perfolrbeal \phere exposeil high
voltage is plesent. An electrica.I shock causiDg l0 milliamps of curlent to pass
thlougb the healt wilt stop most hu6an heartbeats. Voltage as Iow as 35 volts dc o!
ac llrs should be consideled dangelous and hazardous sin-ce it can proaluce a lethal
curlent under celtain conditioDs. Higher voltage poses an even gleate! tltleat be_
cause suc-h voltage can laore easily ploduce a Iethal culreDt. your normal work
habits should include all accepted plactices that will prevent contact rrith exposeal
higb voltage, and that wiu stee! current a\eay flom you! healt in case of accialental
contact rpith a high voltage. You will sigtrificantly leduce tbe lisk facto! if you
know and obselve the followirg safety plecautions:
1. There is little dange! of electrical shock IroE the dc output of this power
supply. Hoeever, thele ale sevelal other possible test conditions using this
powe! supply that can cleate a high voltage shock hazard;
a. If the equipment utde! test is the "hot chassis,, tvDe. a selious shock
hazard exists unless tbe equipEent is uDplugged (usi turning off the
equipment does aot remove the hazard), o! the plecautions ot Jtep g are
observed.
b. If the equipbeDt under test is "powered upi (arxd that equipEent uses
high voltage in ary of its cilcuits), the polve! supply outputs may be
floated to the potential at the point of connection, Remeober that high
volta_ge Inay appea! at unexpected points in defective equipbeot. Do
llot float tbe po.re! supply output to more tban 100 voit; peak with
lespect to chassis or earth ground.
c. If ttre equiproent under test is ,off', (and tbat equipEent uses high vol_
tage ilr aIly oI its circuits unde! nornra.I opelatiotr), discbalge higb_
voltage capacitors before baking coDnectioDs or tests. SoEe cilcuits
retaiD high voltage long after the equipraeDt is tuDed off,
Z. Use olly a poladzed 3-wi!e ac outlet. This assures that the powe! supply
cha6sis, case, and ground telrainal ale conlected to a good eartir
Stounil anil
reduces dange! florD electlical shoclg
3. DoD't expose high vottage neetllessly. Remove bousiags aDd covels only whea
neceasaly, T[ra off equipEe[t while Eaking test coDnectioDs in higb-voltage
cilcuits. Discbarge higb-voltage capacitols after reEo\ring powe!.
4. lf possible, faEiliafize youlseu with the equipE ent beiDg testeal and the lc_
cation of its high voltage points. However, letlembe! tbat high voltage Dlay
appear at rEerpected poiuts in delective equipmert.
{codtinued oa inside rear cover)
B&K 1660
lnstructionManual
for
Jt1}lr, s(t^Ect--,t
MAXSE9 TNTER ATONAL CoPrr.
Model1660
TripleOutput
DC POWER
SUPPLY
H( PEECES'-,J
MAGg TNTEFNAIIONALcoFP.
6470 w Corlland St . ChlcaSo, lL6O635
B&K 1660
TABLE OF CONTENTS
page
TESTINSTRUMENTSAFETY. .. , . irside front coier
INTRODUCTION ., ".......I
FEArijllES .......3
sPljcii::a-r! lN:-i.
.: .... .,,'4
CONTROLSJI INDICATORS.
A ..... -...
G e n e r aC o n t t o l s n dl n d i c a t o r s
l A ........ . .. 5
4 - 6 . 5\ ' s u p p l y C o n t r o l s n d l n d i c a t o r s .
A .........5
Ma.ster Suppl-vControls ,{nd lndicatols . . , . . . . . ' . . . . . . . . 5
S l a v eS u p p l -C o n t r o l s n d I n d i c a t o r s . . , .
.
v A ...... ., . .?
R e a -P a n e C o n t r o l . .
l l s ...... '. . . .. .8
C P E R A T ] N GN S T R U C T I O N S
I .....,,,,,9
S a f e t -P r e c : . r r t i o n s
v ...... ,9
EquipmePt ecauiions nr .............9
" M a s t e r "O r " S 1 a v e " u p P l ] ' . . .
S .. ... 9
lndependent seOf U
Series racking pelation.
T O .. ......13
P a - r a l l e i r a . c k i no p e r a i i o n .
T g .....'.16
, 1 - 6 . V P o i r e lS u p p l O p e l a t i o n .
5 y .'......''.'.19
APPLICATIONS ......,..,. ZO
Generat.. ...'.........20
E l e c t r o n i S e r v i c i n. g
cs ............20
E l e c t r o n i cM a n u f a c t u r i n g
s .........20
E l e c l o n i c sD e s i g nL a b . . . . .
t . ...,Z0
Electlonics ducation.
E . ' ' ' '...21
Battery harging
C ..... -.. ZI
SpliSuPPI-\'
t .,..........21
MAINTENANCE. .,..... "..25
F u s eR e p l a c e m e n t ...... 25
L i n e v o l t a g eC o n v e r s i o n ',.,... --.. 25
Adjustments. ..' . ...--26
l n s t r u m e n R e p a i !S e r v i c e .
t ... .'.'.30
WARRANTYSER\TCEINSTRUCTIONS.... ......31
UMITED NE.YEAR ARRANTY
O W .............32
B&K 1660
INTRODUCIION
Tbe B & K-hecisi@ Model 1660 Triple allows tbe supply to be used for large ci!-
Output DC Powe! Supply is a higb quality, cuits, Built-in ovelload protection auto-
genela.l purpose dc power soulce. It provides matically liEits to cutiebt output to a Eaxi-
two supplies with a 0-30 volt dc output and loull] of 5 aEps. An indicato! lights when the
ong with a 4-6.5 volt dc output. The 0-30 v supply is ovelloaded,
supplies are adjustable with both coarse aJId
fine voltage contlols for precise settability The Model 1660 exhibits excellent regu-
and are capable of current output of Iation ard low pple charactelistics. The ciF
0-2 arops. The 4-6.5 v supply has a current cuit design incolpolates a pre-legulato!, whic-h
output of 0-5 a.Eops,allowillg it to hanille ex- greatly leduces intelnal powe! dis6ipation at
tensive digita.l Iogic circuitry. Two la.rge low output voltages.
palel-Eoormted LED oete! displays caD moEi-
tor eithe! the output curtent or output voltage
Revetse polarity protection plevents acci-
o{ each supply.
dedtal daEage to the poi/ef supply lroE iE-
ploper coDnection to a.a extelnal voltage, and
The two 0-30 volt supplies can be opelated
curreat lioitilg plotects the equipEeDt being
independendy or in one of two tlackilg
powered, as weII aE the power supply.
r:oodes. In the selies tlackilg Eode, the Slave
supply tracks the voltage of the Ma.ste!
supply, MaxiEuo curlent settidg of the two The output is isolated flou chassis alrd
supplies can still be set independently \rhen in earth glound, which plmits full flexibility of
the selies tlackitrg operating 6ode, In the comections. Wbed needed, the (+) o! (-) po-
seris tlacking mode the Maste! aIId Slave Iality llay be stlapped to glound, o! either
supplies a.!e connected in se es, allowing a polarity !!ay be floated to an extelnal vol-
singie output of 0-60 V at up to 2 aDcps. In the tage. Additiona.Uy, the two 0-30 volt supplies
patallel tlacking Eode, the two supplies ale can be used as a "split supply" with two posi-
connected together iD parallel, allo\ring a sin- tive voltages and a comDon negative, two
gle 0-30 V output at up to 4 amps. aegative voltages and a cotDllon positive, or
one positive, otre negative, and a cor!6on. AII
Both 0-30 volt supplies may be used itr of these coiligurations ca]l be used with eithe!
constant voltage o! constart cutrent appli- datching (tlacking) or dif f eling {independent)
caiioDs. The clossove! floB constant voltage voltages.
to constant cu.!!ent modes is sEooth a.nd
autoEatic. LED'S indicate tbe "CV' (coDstant The features aJId versatility oI the unit,
voltage) or "CC" (corBtant cu!!e!rt) l3ode of especially tbe triple output and tracking
operation. In constart voltage applications, a featues, make it an ideal genefal purpose
curlent limit loay be preset, when load va-ri- powe! supply for engineering lab appli-
ations cause the c{rlent to reach the preset catioas. It can serve as a single o! multi-
lioit, the unit then regulates output cu!]ent voltage powe! source, including tbe bias suF
lathe! tha! output voltage. Cullent liloits are ply, fo! breadboard and Fotot]?e circuits and
adjustable frorD 5% to 10070 oI b:axixouEr. IrI equipEent. It can provide single o! sillul-
constant current applications, the rDaxirDurD taneously valying voltages for ctcuit eva.lu-
voltage may be preset. When load valiatioas ation. It can provide tracking (+) and (-) vol-
cause cuJrent to dlop below the legulated tages fo! evaluating diffelential aEplifiers. It
value, the unit reverts to legulated voltage may be used as a battery eliminator, or to
oDeration at the Dreset value, power individual circuit boalds o! caril6 while
temoved llom the systeh, Its output ca'I be
The 4-6,5 V supply is ideal for powering evafuated vrhile poweling a bleadboald or
digital logic circuitly, The 0-5 allp capacity Drototv'De cilcrdt to determine the cilcuit's
B&K 1660
INTRODUCTION
powel suppty requi!emerts. Its labo!atory Dake it a good choice fo! dost other solid
quality specifications will loeet most engi- state electronic applications. These apPli_
neering labo"a.tory requi!ements. cations include selvice shops; industrial Pro-
duction testing of coDrponents' assemblis, and
The same featules that make the Modl collplete equipment; fo! school labolatolies,
1660 a good choice fo! a]} engiaeeling lab also and home use bv electronic hobbyists.
B&K 1660
FEATURES
TRIPLE OUTPUT .urent output- Crossover is sEooth and
Operates as thlee separate power supplies.
Eacb has floating output and is completely
isolated flom the other two. LED DISPLAY
Two large, easy-to-read LED 3-1l2 digit
ONE ,{ TO 6.5 V SUPPLY displays monitol outPut voltage or output
Husky 0-to-5 amp 4-to-6.5 volt suPpty is cu.relrt of aU three supplies. Use of two
ideal fo! use with Dost di$tal logic
meters allows simultaneous current and
circlritly, Adequate cuilent capacity for voltage metering when use M3ste! alld
extensive circuitly. Slave supplies in tracking oPeratioD. Good
visiblilty in bright o! loq light. Meter
TWO O-30 VOLT SUPPLIES
auows resolution of 0.1 volt or 0.1 amp.
Master and Slave supply are continuously
variable ovel 0-to_30 volt range with coarse
and fine controls. Each supplv has a Z amp LABORATORY QUAIITY
current capacity. Excellent !eeulation. 1o$ tiPPle.
UMQUE TRACKING FEATURE LED INDICATORS
The two 0-to-30 V supplies can be operated Identify mode of ope!ation.
so that the Slave supply tracks the Master
supply. Outputs can be strapped fot two PRE-REGULATOR
positive voltages with a comDon negatrve) Limits internal dissipation {o! hiehe.
two negative volLages dith a common posi_ reliability and ef f iciency.
tive, or one positive and one negative with
a neutra.l common. ISOLATED OUTPUT
Either pola.rity may be floated or grounded.
SINGII G6O V SUPPLY
Series tracking feature allows use of Master
OVERI-OAD PROTECTION
and Stave supplies as one 0-to-60 V. Z alnp
Fullv adjustable cullent limiting (from 5%
supply. to 100% of mdimurn output curentl lor
Vaste! and Slave supplies protects circurt
SNNGIJ O_30V 4 AMP SUPPLY
under test and the Poq er suPPlY.
Palallel tracking feature allows lise of
Maste! and Slave supply as a 0-to'30 V
supply with a :1 amp current capacity REVERSE POLAR.ITY PROIECTION
(through MasteF output terminals) Prevents damage to porter supplv lrcrm
external voltage of revelse polaritv
CONSTANT VOLTAGE OR CONSTANT
CURRENT HOOK.UP CABLES
The Master and slav- .Lpplias pro! d- ,supplied with three sets of red ard black
regulated dc voltage output or regulated dc hook-up leads.
B&K 1660
SPBCIFICATIONS
ITASTBR AND $../lVE SUPPLIT-S Load Reeulatiod (C@start Vottage):
= l0 ov (0 to 5 A load)'
outFt vortrge Rage,
0 v {+0/-30 mv) to 30 v + (3 b 1qo)'
Lire RegutatioD 108 - l3z v (coEtaDt
OutFrt Curlot Lieit Rdge: VoltaSe):
0 A (+0/-30EA) to 2 A +(3Vo 7Vo).
to <10 DcV.
Load Regulatio! (Cdstart Voltage): Ripple A.!d Nobe:
<0.01%+ bV.
3 =ZrbVRMS,
LiDe R*ulatioD 108 - 132 V (Consta"r
--
Voltage): OvelYoltage hotection Thteshold:
-
< 0.01% 3 bv.
Rittrtle (CoDsteDt Voltag): Peel Meter Accuract':
< I EV RMS. Sameas Maste! SuppiyMete!.
Recoeery TlEe (Constart Voltage):
< loo ss'
cENERAL
Tehlr Coclficieot (C@rtart Voltage):
= 3OOppb/oc. Poeer RequireEents:
110/1zo/220/z4ovAC !1070. s0/60 Ilz-
Load Rgulation (CcE3ta[t CrErent]:
< 0.2Vo+3 mA- po;'er CoDsurnptioD (FuIy Loaded):
ApproxiEately 320 \4t'
Lile Reguration 108 - l3z v (c@start
CErent):
< O.Z7o E'A.
+3 hotection:
Revelse poladty protection and cur!ent
Rilple Cr|f!ot (at 108 V Io! CoDstant liEiting.
Crttfeot]:
< 3 IlA RMS. DiDeDsiors (E :
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