Fluke 8050? Instruction Manual

Page 1
P/N
530907
October
1979Rev 2
7/84
8050
Digital
M
ultimeter
Instruction
Manual
FLU
ΚΕ
Page 2
N
otwithstanding
any
provision
o
f
any agreementthe
followi
n
g
warrantyisexclusive
:
Th
e JOHN
FLUKE
MFG.CO.,INC.,warrantseach
instrumentitmanu
fact
ur es
tobe
f reef r
omdefectsin
materialand
wo
rkm
a
nship
undernorm
aluseandser
vice
fortheperio
d of1-yea
rfromdateofpurchase.T
h
iswarrantyexte
ndso
n
ly
totheoriginal
purchaser.Thiswarranty s
h
all
not
apply
tofu
ses,disposablebatteries(r
echar
gea
b le ty p
e b
atteries
are
warrantedfor90-d
ays),
oranypro
ducto
r partswhic
h have been
s
ubj
ect
tomisuse,neglect,
accident,or
abnormal
conditio
ns ofoperations
.
Inthe eventoffailure
of
αproduct
covered bythiswarranty,JohnFlukeMfg.Co.,Inc.,
will
re
p air
and
calibrate
an
i
n st
rum
entret
urned
to
anauthorizedServiceFacility
within1
yea
roft
he origi
n al
purchase
;provi
dedthewarran
tor's
examinatio
n d
isclosestoits
satisfactio
n
t
hatt
he productwasdefective.The
warrantorm
ay,atits
op
tion,rep
lacethe
productinlieuofrepair.Withr
egardto
anyin st
rumen
t returned
within1
yea
roftheor
igi
nalpurch
ase,
sai
drepairs
or
replacement
willbemade
wit
houtchar
ge
.
Ifthefail
ur
ehas beencaused by
misu
se,
n
eglect,
acciden
t,
orabnormal
conditionsofoperations,rep
airs will
be b
illedat
α
n
o
min
al
cost.In s
uc
h
case,anestimate
will
b
e s
ubm
itte
d b
efore
workis
started,ifre
qu
este
d
.
ΤΗΕFOREGOINGWA
RRA
NTY
IS INLIEUOFALLOT
HERWARRA
N
TI
ES,EX
PRESSO
R
I
MPLIE
D,
I
NCLUDINGBUTNOTLIMITEDTOANYIMPLIEDWARRANTYOF
MERCHA
NTABIL
ITY,
FITNE
SS,
ORADEQU
ACYFORANY
PAR
TIC
ULARPURPOSE
ORUSE
.JO
HN
FLUKE
MF
G.CO.,INC.,SHA
LL
NOT
BE
LIA
BLE
FOR
ANYSPE
CIAL, INCID
ENTAL,ORCONSEQ
UEN
TIALDA
M
AGES.
WHE
THER
IN
CONTR
ACT,
TORT,
OROTHERWISE
.
If
anyfail
ure
occurs,the
following
ste
psshould be
taken:
WA
RR
ANTY
1
.
N
otifyth
eJOHNFLUKE
MFG.CO.,INC.,ornearestSer
vice
facility,
givingfulldetailsoft
h
e
d
iffic
u
lty,and
i
ncludethemodel
number,
type
number,and serial
number.Onreceiptofthisinform
ation,
servicedata,
or
shippinginstructions
will
b
e
forwardedto
you
.
2
.Onreceipt
of
the shippinginstructions,
forwardtheinstrument,tran
sportatio
n prep
ai
d
.Repair
s willbe
m
ade
atthe
ServiceFacility a
ndtheinstrumen
t
ret
urned,t ran
sportatio
n prepaid
.
SHIPPI
NGTOMANUFACT
URERFO
RREP
AIRORAD
JUST
MEN
T
All
s hipments
ofJOHNFLUKE
MFG.CO.,INC.,instrume
n ts shoul
d bemade
viaUnitedP
a r
cel
Serviceor"BestWay"'
prepaid.
Thein
strumentshouldbe
shi
ppedinthe
origi
n al
pack
ing
carto
n
;orif
itisnot
available,
use any
s u
itable
con
tai nerthatisrigida
nd
of
adequate
size
.Ifαsub
stit
uteco
n
tai
ner
isused
,
theinst
rumen
tshou
ldb
e
wra
ppedin
pap
er
ands
urroundedwithat
leastfour
inc
h
esofexcelsior
o
r
simila
rshock-ab
sorbingm
aterial
.
C
LAIMFORDAMAGEINSHI
PMENTTOOR
IGINAL
PURCHAS
ER
Theinstrumentshou ldbethoroughlyinsp
ecte
d immed
iately
uponor
igi
n al
d
elivery
topurchase
r
.
Allmaterialin
the
con
taine
r shouldbech
eckedagainstthe en
closedpac
k
inglist
.
Themanufact
u
rer will
notbe
r
espo
n
sible
forsh
ortages
against t
he packingsheetunlessnotifie
dimmediately.If theinstrume
n t is d
amage
d
i
n
anyway,
α
clai
m
s h
ould be
file
d
wit
hthe carrie
r
i
m
med
iately
.
(Toob
tai
n
α qu
otationtore
p
airshipmentdamage,
con
tactth
enearestFluke
Technical
Center.)F
i
n
al clai
mandnegotiations
wit
hthe ca
rr ie
rmu
stbecompletedbythecustomer.
T
heJOHN
FLUKE
MFG.CO.,
INC,
will b
e happytoanswerallapp
lications oruse
qu
estions,which
willenhanceyo
ur
useofthisinstrum
ent
.Pleaseaddressyourrequests
orco
r
res
pondence
to
:JOHNFLUKE
MFG.CO.,IN
C
.,
Ρ
.
Ο.BOX
C9090,
EVERE
TT,WAS
HIN
GTO
N
98206,
ΑΤΤΝ
:
Sales
De
pt.For
EuropeanCu
stomers:Fluke(H
olland)B.V.,Ρ.Ο.Box
5053,
5004ΕΒ,
Tilburg,The
N
ethe
r
lands
.
'For
European
custome
rs,
AirFreightprepaid
.
J
o
hn
F
lukeMfg.Co.,Inc.,Ρ.Ο.Box
C9090,
E
verett,Washi
ngton
98206
Rev.
6/81
Page 3
3
Table
of
Contents
SE
CTIO
N
TIT
LE
PAGE
1
I
NTRODUCTIO
N
AND
SPECIF
ICATIONS..
. . . . .
. . . .
. . . . . .
. .
.
. . . .
. .
. .
1-1
1-1
.INTRODUCT
ION
. .
. . . . . . . .
. . . .
. . ... . . . ..... . . . . . .
. .
. . . .
. . .
. .
1-1
14
.OPTIONSA
ND
ACCESSORIE
S
. .
. ... . . . .
. . . .
. . . . . .
. .
. . . .
. . .
. .
1-1
1-5
.SPEC
IFICATIONS
. .
. . . .
. . . . . . . . . . . . . . . . . . . ....... . . . . . . . . . ..1-1
2
O
PER
ATIO
N
. . .
. ...
. . . . ... . . . . . . . ... . .
. . . .
. . ...
.
. ...
.
. .
. .
... ...
. ...
2-1
2-1
.INTRODUCTION.. . . . . . ...
. .
. . . . . . . . . . . . . . . . . . . .
. .
. . . .
. . .
. . .
2-1
2-3
.SETTINGUPYO
UR
INSTRUMEN
T
. . . . . . . . . . . . . .
. .
. . . .
. . .
. . .
2-1
2-4
.
Unpacking. . . .
. .
. . . ... . .
. . .
. . . . . . . . . . . . . . . . . . . . ... . . . .
. .
. . .
2-1
2-8
.
AC
Lin
eVo
l
tageRe
quiremen
ts
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..2-1
2-10
.
Fu
seReplacement
. . .
. .
. . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . ..2-1
2-13
.FRONTPA
NEL
FEATURES. . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . ..2-2
2-15
.
Display
. . . . . . . . . ... . . . . . . . . . . . ..... .
. .
. . . .
. .
. . . . . ... . . . . . .
.
2-2
2-18
.SIGNA
L
INPUTLIMIT
S
. . . . . . . . ... . . .
. .
. . . .
. . .
. . . . ... . . . . ...
2-2
2-20
.O
PERATIN
G
TEC
HNI
Q
UES. . . . .
. . . .
. . .
. ..... . .
. . . . . . . . . . . . . .
2-3
2-22
.
AC/DC
Voltage
(V)
. . . . . .
. .
. ... . . . . . . . . . . . . . . . . . ...
. . ..... . .
2-3
2-24
.
AC/DC
Current(m
A). ...
. .
. . . . . . . . . . . . . . . . . . . . .
. .
. . . .
. .
. . . .Ζ-3
2-26
.
Resistance
(fl)
. . .
. . ... . ...
... ... .
. .
. ... . ... . . . . ...
. . . ... . . . .
2-7
2-28
.
Conductance
(S=1Ω)
. . . . . . . . . . . . . . . . . . . . . . . . . ... . . . ... . . . . .
2-7
2-30
.
Di
odeTest
.
...
. . . .
. .
. . . . . . . . . . . . . . . ... . . . . . . ... . . . . ... . . . ..2-7
2-32
.
R
elative(REL
A
TIVE)
. . . . . . . . . . . . . . . ... . . . . . . ... . . . . ... . . . .
.
2-7
2-36
.
Decibel
(dB)
. ... . . . . . . . . . . . . . . ...
. .....
. ... .
. . . . . . . . . . . . . ...
2-11
2-38
.INITIALC
HECKOUT
PROCEDURE
. .
. . ..... ...
. . . . . . . . . . . .
. .
2-12
2-41
.APPLI
CATIONS
. ...
. . . . . . . . . . .
. .
. . . ... . . . .
. .
. . . . . . . . . . . . . ...
2-12
2-43
.
D
CVoltageMeasure
ment. . .
. . . . . . . . . . . . . . . . . . . . .
. .
. . . . ... . . .
2-12
2-51
.
CurrentMeas
u
rement
. .
. . . .
. . . . . . . . . . . . . . . . . . . . .
. .
. . . . . . . . . .
2-13
2-56
.
R
esistance
M
eas
u
rement.. . .
. . . . . . . . . . . . . . . . . . . .
. .
. . . ... . . . . .
2-13
2-62
.
Co
n
d
u
cta
nceM
easure
ment
. . . . . . . . . . . . . . . . . . . .
.
. .
. . . . ... . . . . .
2-14
2-80
.
R
elat
iveM
easurement
. . . . . . . . . . . . . . . . . . . . . . . . . ... . . .
. .
. . . . . .
2-16
2-84
.
ACVoltage
and
CurrentMeasurement
. . . . . . . . . .
. ... . . . ... . . . . .
2-16
T
HEORYOFOPER
ATION. . . . . . . . . . . . ... . . .
. . .
. . . ... .
.
. . . . ... . . . . . . .
3-1
3-1
.
INTRODUCTION
. . . . . . . . . . . ... ...
.
.
.
. ... ....... . . . .
. ... . ....3-1
3-3
.FUNCTIONALDESCRIPTION
. .
. ...
.
. . . . .
. ... . . . . ... . . . . . ...
3-1
3-5
.CIRC
UIT
DESCRIPTION
..... . . . . . . . . . . . . . . . . . . . . .
.
. . . . . . ... .3.1
i
(cont
inu
edonpage
ii)
Page 4
Page 5
Page 6
L
ist
of
F
igures
FIG
URE
TIT
LE
PAGE
F
rontis
p
iece
8050ΑDigitalMultim
eter
.
. ...
. . . . . .
. .
. ... . . . . . . . . . ... ..... .
.
.
... .
. .
v
i
1-1
.
8050A
Dimensions
. ... . . ... . . . . . .
. . . .
. ... . . . . . . . . .
. . ...
. . . . .
. . .
. . ..1-6
2-1
.
Controls,Indicators,
and
Co
nn
ectors
. . .
. . . .
. . . . . . . . . . . . . .
. .
. . . .
. .
. . . .
2-2
2-2
.
Liqui
d
Crysta
l
Display
. .
. .
. . . . . .
. . . .
. . . . . . . .
. . ..... . . .
. . . . ... . . . . .
. .
2-4
2-3
.
AC/DCVoltage
Operation. . . . . .
. . . .
. . . . . . . .
. . . . . . . . . .
. . . . ... . . . . .
. .
2-5
2-4
.
AC/DCC
u
rrent
Operation. . . . . .
. . . .
. . . . . . . .
. . . . . ... . .
. . . . .
. .
. . . . .
. .
2-6
2-5
.
Resi
sta n ce
O
p
erat
ion.. . .
. . .
. . .
. . . . . . . . ...
. .
. . . . . . . . . . . . .
. .
. . . . .
. .
. .
2-7
2-6
.
Conductance
Operation. .
. . . .
. .
. . . . . . . . ... ..... . . . . . . . . . ... . . . . . ... .
2-8
2-7
.
Di
ode
Test
Operation. . . ..... . . . . . . . . .
. . .
. . . . . . . . ... . .
. . .
. . .
. . .
. . . .
2-9
2-8
.
R
elative
Operation.'
. .
. . . .
. . .
. . . . . . .
. ...
. . . . . . . . . . . . . .
. . . .
. . .
. . .
. . . .
2-10
2-9
.
d
B
V
oltage
O
p
erat
ion
. . . .
. .
. . . . . . . .
. ... .
. . . . . . . . . . . . . .
. .
. . . . .
. .
. . . .
2-11
2-10
.
Circ
ui
t
Loading
E
rror
. . . . . . . . . .
. . . .
. . . . . . . . ... ...
. . . .
. . . . ..... . . .
. .
2-13
2-11
.
Ca
lculatingBu
rde
n
V
oltageError
. . .
. . . . . . . . . .
. . . ... .
. . . . . . ... . . . . .
. .
2-14
2-12
.
T
ransistor
B
eta
T
estFixture
. . . . . .
. . .
. . . . . . . . ... ...
. ...
. . . . . . ... . . . ..2-15
2-13
.
d
BCi
rc uitGainorLossMeasurements
. ... ..... . . . . . . . . . . . . . . . . . . . ...
2-17
2-14
.
W
aveformComparisons
. . . . . ... . . . . . . . . . .
. . .
. . . . . . . .
. . . . ... . . . .
. . .
.
2-18
2-15
.
CrestFactor
. ...
. . .
. . .
. . . .
. .
. . . . . . . . ...
. ...
. . . . . . . . . . . ... . . . . ... . .
2-19
2-16
.
Total
RM
SValue
. ..... . . .
. .
. . . . . . ..... . . . . . . . . . . . . . . .
. .
. . . ... . . . . .
2-19
2-17
.
M
eas
ur
in
g
AmplifierBandwidth. . . . . .
. . . .
. . . . . . . . . . . . . .
. . .
. . ..... . . .
2-20
3-1
.
8050ΑFunctionalBl
ockDiagram. . . . .
. . . .
. . .
. . . . ... . . . . .
. .
. .
. ..... . . .
3-3
3-2
. -
Α
/DConverter
. . ... . . . .
. .
. . . . .
...
.
... . . . . ... . ... .
. .
. .
.
. . . .
. . .
. . . . .
3-4
3-3
.
Α
/DConverterWaveforms
. . . . .
. ...
. . . . . . . . . . . . .
. .
. . .
. .
. . . .
. .
. . . . . .
3-5
3-4
.
Mi
croco
mpu
terSimplif ied BlockDiagram. . . .....
. . . . .
. ... . . ... . . . .
. .
3-6
3-5
.
SignalConditio
nin
g
. .
. . .
. . . .
. ...
. . . . . . . . . .
. . . .
. .
. .
. . . . . . ..... . . .
. ..3-7
3-6
.
RMSConverter
. . . . .
. .
. . ...
. .
. . . . . . . . . . . .
... ... ... . . . . . ... . . . . .
. ..3-9
4-1
.
Di
zi
μlayPCBAccess.. .
. . . ...
...
. . . . . ... ...
. .
. . . . . . . . . . . . ... . .
. .
. . ..43
4-2
.
CalibrationAd
j
ustmen
tLocatio
n
s
. . . .
. . . .
. . . . . . . . . . . . . . .
. . .
. . . .
. .
. . . .
49
Page 7
8050ΑDigital
Mu
itimete
r
v
i
Page 8
1-1
. I
N
TRODUCTIO
N
1-2
.Your
J
ohn
Fluk
e
Model8050A
isα
portab
l
ebench-
type
digita
l
multim
eter
(DMM)
withα
4-1/2
digit
liqui
d
crysta
ldisplay
(LCD)
.The
8050
Αhas
all
t
he
followin
g
in
du
stry-standardfeat
u
res
:
ι
V
oltage
m
easu
rementsfro
m
10
μ
V
to
Ι
OOO
V
do
an
d
10
m
V
to
750Vtrue-rmsac.
ι
C
u
rre
n
tmeasurementsfrom10ηΑto2Α
do and10
μΑ
to
2
Α
true-rms
ac
.
ι
Resi
stancemeasu
reme
n
ts
f
ro
m
ΙΟ
miltoΖΟΜΩ
.
Th
e
8050Αalsohas
severa
lspec
ial
m
easu
remen
tfeatures
.
Th
ese
s
pec
ial
f
eatures
include
the
following-
0
Conductancemeasu
rementsupto100,000
ΜΩ
.
ι
V
oltagemeasurementsi
n dec
i
bels,
that
can
be
referenced
to1of
16user
selected
reference
imp
edances
.
ι
R
esista
nceran
ges
that
s
upplyenoughvol
tage to
turnon
α
ΡΝ
j
unction
to
allow
diodes
and
tra
ns
i
storstobe
tested
.
Theabilitytostoreany
inpu
t signalasano
ff
set
or
relative
reference
value
.
Section1
Introduction
an
d
Specificatio
ns
ι
A
uto
mati
cpolarityindicatio
nan
d
overrange
indication.
ι
P
rotectionfromove
r
l
oads
and p
rotectionfro
m
transientsofupto6 kV,10microseconds
.
ι
Dual-slopeintegrationα
/d
conversio
n
toensure
no
i
se-free
m
easu
rements.
L
ongtermcalibrationstability(1year)
.
1-3
.T
h
e
8050Αiswarrantedfor αperiod
o
f
one year
upon
s
hipmen
t
o
f thein
strumentto
t
he or
iginal
pu
rchaser.Conditio
ns o
fthe
warranty
are
give
n
at
t
he
f
ron
t
o
fthi
smanua
l .
Th
e
8050Αis
t
ypicall
yp
oweredfro
m
ac
lin
e
voltages
butmay be
p
owered
b
ytheoptional
rechargeable
battery
.
1-4.O
P
TIONS
andACCESSORIES
1-5.Theuse
o
fth
e
8050Αcan
be
enh
a
ncedbythe
accessories
availablefor
thisinstrument.The
accessories
arelisted
in
Tabl
eΙ-1
.
T
hisinstr
um
entcan be ordered
wit
hth
e
Option805
ΟΑ
-01Rechargeab
l
eBattery
.
D
eta
il
ed
informati
on
on
optio
n
s andaccessoriesis
con
ta
in
edinSection6
o
fthi
smanu
a
l
.
1-6.SPECI
F
ICATIONS
1-7
.S
p
ecificationsfor
the8050Αarelisted
in
Tabl
e
1-2
.
Specifications
f
or
theOption8050Α-01Rechargeable
B
atteryand
ot
h
er
accessory
specificatio
ns are
given
in
Sectio
n 6
o
fthi
sma
nua
l .
Page 9
I
NTRODU
CTIO
N
SPECI
FICATIO
NS
ELECTR
ICAL. . . ...
. ...
. ... ..... ... ... ...
. .
The
elect
r
icalspecificationsgive
n apply
foran oper
ati
ng
tem-
perature
of
18°Cto28°C
(64
.4°
Fto 82
.4°
F),
r
elative
humid
ityupto
90%,
an
d α
1-year
calibration
cycle
.
Fun
ctions.
. ...
. ..... ... ... ..... .
. ... .....
DC
volts,
AC
volts
(linearanddB),
DCcurren
t,
AC
c
urren
t,
r
esistance,dio
d
e
test,condu
ctance,
r
elative
.
DCVoltage
Table
1-1
.
8050A
Accessories
Table
1-2.8050
ΑSp
ecificatio
ns
I
NPUTI
MPE
DANCE... .
. . . ... ... . .....
.10
ΜΩinparallel
with<100
pF,
allran
ges
.
N
ORMALMODE
REJE
CTIONR
ATIO...
>60
dBat60Hzor 50Hz.
CO
MMON
MODE
REJE
CTIONR
ATIO
. .
.>90
dB
atdc,
50 Hz
or 60Hz(1kΩ
unb
alanced)
(>120dBavailable
onrequest)
CO
MM
ONMODEVOLTAGE(M
AXI
MUM)
500Vdoorpeak ac
RESPONSE
TIME
TO
. . ... ..... ... .....
.1
secondmaximum
RATED
ACCURACY
M
AXI
MUMINPU
T
...
. ... ..... .
.
. ... . ...
1000Vd
o orpeak
accontinuous(lesstha
n
10
secondsdurationon
boththe200
mVan
d 2
V
ran
ges)
.
'DC
voltages
can
alsobemeasuredusingth
e
d
Bmode
with.01dBr
esolutionb
etwee
n
5%
ofrangeandfullrange
.
M
OD
EL
D
ESCRIP
TIO
N
MODEL
D
ESCRIP
TIO
N
C86
Ru
ggedizedCa
r
rying
Case
80J-10
C
urrentS
hun
t
Υ
8205
SoftCar
ryi
ng
Case
80Κ-6
H
ighV
oltage
Pro
be
MOO-200-611
OffsetMo
un
ting
Kit
80
Κ
-40
H
ighVoltage
Pro
be
MOO-200-612
CenterMountingKit
83-
RF RF
Probe
MOO-200-613
DualMounti
ng
Kit
85-
RF RF
Pr
ob
e
80T-
Η
To
uch-Hold Probe
Y81
00
DC/AC
C
urrentPro
b
e
80T-150C Temperature
Probe,
Celsius
Y81
01
ACCurrentT
ransformer
807-150
F
Tem
p
eratureProbe,Fahrenh
eit
Υ
8134
Del
u
xe Test
Lea
d
Set
(safetydesigned)
80Ι-600
CurrentTran
sforme
r
Υ
8140
Slim-Flex
TestLeads
R
ANGE
RE
SO
LU
TIO
N
ACCURACYfor
1-Yea
r
±200mV
10
μV
±2
V
100μV
±20
V
1
mV
±(0.03%ofreading
+2
d
igits)
.
±200
V
10
mV
±1000
V
100
mV
Page 10
Table
1-2.8050
Α
Specifications(
οοπ
t)
I
N
TR
ODU
CTIO
N
SPECIF
ICATIO
N
S
AC
V
olts
(True
RM
SRespondin
g,
ACCoupled
)
V
OLTAG
EREADO
UT
ACCURACY.... . .t(%
ofrea
d
i
ng+number
ofdigits),between5%
ofrangeandfull
r
ange.
"'Τyρίεα
//y3to5digits
ofrattle
willbeob
servedatfullscaleat20Hz.
RESOLU
TION.
. .
.
.
. .....
. .
. ...
...
. .
. ...
0
.01dBfrom5%ofscale
to
full
scale;0.1dBfrom1-5%ofscale,1dB
below
1%
of
scale
V
O
L
T-HzPRODU
CT
10'max (200Vmax@50
kH
z)
EXTENDEDdBS
EN
SITIVITY
... ... ...
. .
Typically
-72
dB
(600ΠR
ef)
±1 dBto10kHz
E
XTENDED
FREQUEN
CYRESPON
SE
. .
Typically
-3
d
Elat200kHz
CO
MMONMODEREJE
CTION. .
. ... ... .>60
dBat50Hzor
60 Hz
R
ATIO
(1kΩ
unb
alance)
C
RE
STFACTO
RRANGE
. .
. ... . ...
. ...
.W
aveforms
withαPeak/RMSratio
of1:1to3:1atfullscale,
i
ncr
easingdownrange
I
NPUTI
MPEDANCE
. .
. ...
. ...
. .
. ... . . . .10
ΜΩinparallel
with<100
pF
M
AXI
MUM
I
NPU
T
V
O
L
TAG
E
. .....
. .
.
.
.750Vrm
s or
1o00Vp
eakco
ntinuous
(less
than10
seconds
dur
atio
n
onbot
hthe200
mV
and2
Vranges),
n
ottoexcee
dthe
volt-
h
ertz
product
of 10'
RESPONSETIME. ..... ... . . .
. ...
. ... .
.2
seco
nd
s
maxi
mum
withinαran
ge
REFEREN
CE
IMPEDANC
ES.... ... ... .
.Sixteenuser-selectable
impeda
nce
r
eference
levelsar
eprovidedto
r
eferenceα0d
Bm,1mW
level
(50Ω,75Π,930,
110171,
1250, 1350,
1500,
2500,3000,
5000,
6000,
8000,9000,10000,12000),andan
80imp
edance
r
eference
levelispr
ovided
toreference
α0dBW
level
.
dB
Ranges
NOTE.On
request,
t
h
e
NOT
SPEC
IFIED
portionofthe
100Υ-750V
Ra
nge
can
be
extende
d
toth
e Volt-Hertz
Productof10?
INPU
T
Ι
dBm
VOLTAG
E
(600
Ω
REF)
0
.77mV-2
mV
2mV-2
V
0.1V-2V
1
V
-20
V
10V-
200
V
100V-
750
V
-60το-52
-52
to
+8
-18to+8 +2το+28
+22το+48 +42το+60
R
ANGE
20
Hz
45
Hz
1
kH
z
10kHz
20
kH
z
50
kH
z
ACCURACY:from596
of
r
an
ge tofullscale,
1-year
When
200mVran
geisselectedthe
8050Αautoranges forb
est
accuracyfor 2
Vinputsand
less
.
I
NPU
T
VOLTAGE
RESOLU
TIO
N
R
ANG
E
20Hz** 45
Hz
1kHz
10kHz
20kHz
50
kH
z
10mV-200mV
1011
V
200
mV
Ι
0
.1V-2
V
1004V
2
Υ
1%+10
.5%+10
1%+10 5%+30
1V-20V
1
mV
20
V
ι
10V-
200
V
10
mV
200
V
l
100V-
750
V
100
mV
750
V
Page 11
INTRODUCTION SPECIFICATIONS
Table
1-2.8050
ΑSpecifications
(cont)
OC
Current
O
VERLOAD
PROTECTION
(ac/dc).. ...
.2A/250Vfuseinseries
with
3A/600V
fuse
(forhighenergy
sources)
AC
Current
(True
RMSResponding,
AC
Coupled)
""Typί
cally
3to5
d
igitsofr
attle
willbe
observe
d
atfu
ll
scale
at
20Ηz
.
C
RESTFACTORRANGE
.
. ... ..... .....W
aveforms
with
α
P
eak/RMS
ratioof1
:1
to3:1atfull
scale
R
esistance
O
VERL
OAD
PROTE
CTION... ...
. .....
.500
V
dc/acrms
on
allran
ges
OPEN
CIRCUITVOLTAGE
. ..... ..... . . .
Less than
3
.5V
on
all
ranges
RESPONSE
TIME..... . . .....
. .....
. ...
10
seconds
maximum
on20ΜΩrange;2
seconds
m
aximum
on
all
(TORATED
ACCURACY)
other ranges
DIODETEST
. ..... ... . . . . ... ..... .....
.T
hese
three rangeshave
enough
voltagetoturnonsilicon
junctions
to
check
for
proper
forward-t0-back
resistance.The
2 k
Ωrange
is
p
referred
anditmarker) with α
ΙαΓοθ
r
d
iode
symbol
on
the
front
panelof the
instrument.The
three
non-diode
test
ranges
willnotturn
on
siliconjun
ctio
ns soin
-circu
itresistance
m
easurementscanbe
made
withthese
three
ranges
R
ANGE
RESOLUTION
ACCURACY
for
1-Year
BURDEN
VOLTAGE
200
μΑ
0
.01
μΑ
2
mA
0.1μΑ
20mA
1
μΑ
i(0
.3ο/οof
reading
+ 2 d
igits
0.3V
max
200
mA
10
μΑ
2000
mA
100
μΑ
0
.9Vmax
INPUT
CURRENT
RESOLUTION
RANGE
20
Hz**
45
Hz 2
kHz
10
kHz
20
kHz
BURDEN
VOLTAGE
10μΑ-
200
μΑ
0
.01
μΑ
2001AΑ
ι Ι
100μΑ-2mA
0.1MA
2
mA
Ι
1mA-
20mA
1
MA
20
mA
2%+10 1%+10
2%+10
0
.3V
rmsmax
10mA-200
mA
10
μΑ
200
mA
ι
100mA-2000
mA
ι
100
μΑ
ι
2000
mA
ι ι
0
.9V
rmsmax
t
ι
-6,
έε
" _ .
."τ
F
ULL
SCALE
VOLTAGE
ACROSS
R
ANGE
RESOLUTION
ACCURACY
for 1-Year
UNKNOWN
RESISTANCE
200
Ω
0
.01
Ω
.19V
+
2±(0
.1%
reading
digits+.02n)
2kΩ
0
.1n
1
.2V
20
k
Ω
1
Ω
d
igits)
.2V
±(,05%
.of
reading+2
200
k
Ω
1092
2V
2000kΩ
100n
.2V
20
ΜΩ
1kΩ
±(ο25
ωα
r
eading+3digits)
2V
Page 12
Table
1-2.8050ΑSpeci
f
ications (co
n
t)
I
NTRODUCTIO
N
S
PECIF
ICATIO
NS
Co
ndu
ctance
M
AXI
MUM
OPEN
CIRCU
IT
V
OLTAG
E..
<3.SV
O
VERL
OAD
PROTE
CTION.
. ... ...
. ...
.
500Vdc/acrms
on
allran
ges
CO
NDU
CTANCEUN
ITS
. .
. .
...
...
. ... .
.
W
eusetheinternationalunitofco
ndu
ctance,the
siemen=S=1/
Π
.
A
n
otherunitofco
ndu
ctanceisthem
ho
R
elative
REL
ATIVEREFEREN
C
E
.
.
...
. . .
. ... ...
.Aninputapp
liedwhenthe
REL
ATIVEbu
ttonisdepr
essedtoth
eO
Ν
p
ositio
n
isheldas"0"refere
nce
point.Subsequentreadi
ngsind
icate
t
hedeviation
(t)
fro
mth
ispoint.(Note:RELannun
ciatorindicates
whe
nthism
o
deisenabled)
REL
ATIVEACCURACY
. ...
. ...
. ... .
. . . .Error
willnot
excee
dthesumofthe errorsofth
e
two
measurements
ENVIRONMEN
TA
L
Te
mperatur
e
Coefficient.... . . ... . .....
. .
.
<0
.1 timestheapplicable
accuracysp
ecificatio
nper
°Cfor
0°C
to
18°Cand
28°Cto50°C
(32°Fto64.4°
F and82.4°
F
to
122°F)
O
p
erating
Temperat
ure..
. ... ... ..... ... .
.
0°C
to
50°C
(32°Fto
122° F
)
StorageTemper
ature
. ... ..... ... ...
. ...
. .(wit
hout
batteries):-40°Cto+70°C
(-40°Fto
+158°
F
)
(wit
h
batteries):-40°Cto+50°C
(-40°Fto
+122°F)
R
elativeHumidity.... ..... ... . . ...
. .
. .....
Upto90%,
0°Cto35°C
(32-95°F),upto
70%,
35°C
to
50°C
(95-
122°
F),
except
on
2000kΠ,20ΜΩ,and
200nSrangeswhereitis
up
to
80%,
0°Cto35°C
(32-95°F)
G
ENERAL
M
aximum
CommonModeVoltage
. .
.
.
. .
. . .500Vdc.
or peakac (low
terminal
potential
withr
especttopowerli
ne
grou
nd
Size
. . ....... ....... ..... .....
.
. ... .
. .....22
cm
χ 6 cmχ25cm(8Vzinχ2'hχ 10in)seeFigu
re1-1
W
eight.
. ....... ..... ... . ... ... ..... ... .
.
.1
.08kg(2Ib6
oz)
P
owerRequirements(Lin
e
OnlyModels)
L
INEVOLTAG
E.. ....... . . ... ... ... . . .
.
90
to
110Vac47to440
Hz
105
to
132Vac,47to
440
Hz
200to264
V
ac,47to
440
Hz
Γαο
t
οrγο
onfigurοdfor
o
u
otQmo
ropcoifi
οd
v
oitaga
P
O
WER
CONS
UMP
TION..... ... ..... .
.
4Wmax
Standa
rds.... . . ..... ..... . . ..... ...
. ...
.,
IEC
348
Pr
otectio
n
Class
1
RA
N
G
E
RESOLU
TIO
N
ACC
UR
ACY
for
1-Yea
r
2
mS
.1μS
(10ΜΩ)
t(0.1%
of
reading
+
5
d
igits)
200
n
S
.01nS
±(0
.5°/οof
reading
+
20digits)
(100
000
ΜΩ
)
Page 13
INTR
ODUCTIO
N
S
PE
CIF
ICATIONS
8
.55
i
n
.
(21,72
cm)-
7
.50
i
n
.
(19,05
cm)
2.52in.
(6,40
c
m)
10
.65
i
n
.
(27,05
cm)
-9.90
i
n
.
(Ζ5,15
cm)
Figure
1-1.8050ΑDimensions
Page 14
2-1
.
INTR
ODUCTIO
N
2-2
.
Thi
s
sectiondescribeshow
to
setupandma
ke
m
easu
rements
wit
h y
our
8050Α.Even
t
houghyou
m
ay
h
aveused
α
mul
timeter
before,
we
recommendthat
yo
u
read
the en
tire section
care
full
ysothat
yo
u
can
u
se
all
o
f
t
he
8050
Αfeatures
.
2-3.S
E
TTING
UP
YO
UR
IN
STRUMEN
T
2-4
.
Unpacking
2-5
.Thisinstrumen
t is
shippedinα
s
pec
ial
p
rotective
container
that
sho
ul
d p
reve
n
t
damage
to
the8050
Α
d
u
r
in
g
s
hippin
g.Chec
kth
e
s
hippin
g
order
against
t
he
con
tents
o
f
t
h
e container
and
report
any
damage or
short
s
hipm
entto
thep
lace
o
f
purchase orthe
n
earest
Fluke
Tec
hnical
Serv
i
ce
Ce
n
ter.Αlist
o
f
t
h
ese
serv
i
ce centersis
l
ocatedinSection 5.T
he contain
er sh
ouldinclude
t
h
e
f
ollowing
.
ι
Th
e
8050
ΑMultimete
τ
ιTwo
testleads
(o
n
e red
and
πη
eblac
k
)
ι
Lin
ep
ower
cord
ι
T
he
8050
ΑInstructionManual
2{ι.
If
res
hipm
ento
fthein
strumen
tis
n
ecessary,please
u
se
t
he or
iginalshippin
g
con
tainer
.
Ifthe
origina
l
con
tainer
isnot
available,
besure
that
adequate
pr
otectio
n
i
sprovided
topreve
n
t
damage
d
ur
in
g
s
hipm
en
t .We recommendthat
theinstr
umen
t
be
su
rro
u
ndedby
at
l
east
threeincheso
fshoc
k
-absorbi
ng
m
atεrialοη
allοί1c~
νΙL11C
GULILdllICT
.
2-1
.
R
e
m
ove
the8050
Αfro
mthe co
ntain
er
andplace
it
in
α con
venientlocation.
To
f
acilitate
o
p
eratio
n
in
differentlocations,t
in
ghandleonthe
meter
can
Sectio
n
2
O
p
eration
beusedasα
prop-sta
n
d
orpositioned
out
o
f
t
h
e
way
.
To
p
ositio
nthehandl
e,
pull
outward
on
t
he hubsof
t
h
e
h
a
nd
l
e androtate
the h
andleinto
pos
ition
.
2-8
.ACLineVoltageRequirements
2-9
.ACline
voltage
requirementsforyour
8050
Α
a
r
e
li
stedonα
deca
l
attac
hed
to
t
h
e
botto
m
of
t
hein
strument.
Ref
er to
Section4for
theproceduretoch
a
ngeth
e
ac
lin
e
vo
l
tage
setting
.
CAUTIO
N
Do
not
co
nnectth
e p
owercabletothe
Inst
rumen
tbefore
verifying
t
h
at
the
Inte
nded
source
matc
hesthe αεlineconfigur
ationof
the
Inst
rumen
t
.
2-10
.
Fu
seReplacement
2-11
.
Th
ereisone,user
replaceable,fuse
inthe
8050
Α
.
Thefu
se,F1,
a
n
d
thefuse
ho
l
derfor
m
anintegra
l
p
art
o
f
t
he
mAi
npu
t
connector andcanberemo
vedwith
out
specialtools.
Th
efuse
rating
is
:2Α,normal
blow
(recommended
part
AGX2)
.
2-12
.
U
se
t
he
f
ollowingp
rocedureto replace
t
he
fu
se,
Σ
F1
:
1 .
Set
the P
O
W
ERswitch
to
O
FF
.
2
.
R
emove
t
he
inpu
tpower
cordfro
mth
e
8050Α.
W
ARNING
DO
NOT
ATTEMPT
TO
REP
LACEΤΗΕFUS
E
WITH
ΤΗΕ
I
NSTRUMEN
TT
URNE
D
ON
O
R
CO
NNECT
E
D
TOLI
NE
POWER
.
Page 15
OPERATION
FR
ONTPA
NEL
FEATURE
S
3
.
R
efer to
F
igure
2-1,item
5fo
r
t
he
locationof
t
he
fuse
h
older.The
fuse
h
older
isanintegral
p
artofthemAinput
connector
.
4
.Usingαcoin
orw
ide b
lade
screwdriver,push
in
whileturning
thefuseholder
inthe
direction
of
the
arrowon
the
front
panel
decal
.
5
.
Pull
out
the
fuseholder
andreplace
the
defective
fuse
.
2-13
.
FRONT
P
A
NEL
FE
AT
URE
S
2-14
.
B
efore
u
sing
your
multimeter,
take
αfew
m
inutes
to
become
familiar
with
theu
se ofthe
controls,
indicators,
and
connectors
ofthe
8050Α.
Thefrontpanel
features are
shown
in
Figure
2-1
and
describedinTable
2-
1.Thefeatures
of
the
Liquid
Crystal
Display
(LCD)
are
also
described
inthefollowingparagraph
.
2-15
.
Display
2-16
.Thefeaturesoft
heLiquid
Crystal
Display
(LCD)
are
shown
in
detail
in
Figure 2-2.The
position
of t
he
floating
decimalpointis
determined
bythe
range
selected
(for linear
measurements).The
m
aximum
measurement
value
that
canbedisplayedis
one
count
l
ess
thanthe
F
igure
2-1.Contr
ols, Indicators,
andConnectors
range
selecte
d
(e .g.,m
aximum
measured
voltage
that
can
be
displayedint
he
200
m
V
range
wouldb
e
199
.99
m
V)
.
2-17
.
To
extend
thelifeoft
heLCDandtoensure
that
the
display
willbeready
to
operate,
observe
the
f
ollowing
p
recautions
:
ι
D
onot
store
or
u
se the
instrumentintemp
eratures
above
or
below
those
specifiedinSection1.
ι
D
o
not
storeoru
se
the
instrument
in
humidity
above
that specified
in
Section1.
ΝΟΤΕ
L
ow
temperatures
(within
the
specified
operating
limits)
will
cause
theLCDresponse
tobesluggish
.
ι
Avoid
prolonged
exposure
of
the L
CD
to
direct
sunlight
(ultraviolet)
.
2-18
.SIGN
A
LINPUTLIM
ITS
CAUTIO
N
E
xceedingthemaxI
mum
signal
I
npu
t
limits
can
da
m
age
theInstrument
.
'Nut 1015
έ
i
C
σ
Ι Ι
11
1
U
min
200
2W1ϋϋ
~
f
iv
ι
ι
~ιjιf
τι
1υΓ"
D
.
;
. 1 .
.
ι
ι
0
:
Wu
1
,
0
MA
ίΑ
ευτε
C
F
-7
5
Fιυ
κ
ε
σσ
α
dB
i7
ωω
Μ
,ι
8050
ρ
COM
M
O N
S
11Λ
Υ
/kΩ
/$
WW
AC
N--
.-e
!
ΦΟίιΟ
t
ί
)IGITAL
M
UL
I
METER
ΟΝ
OFF
REL
ATI
VE
ο
0
Page 16
Table
2-1.8050
ΑCon
trols,Ind
lcatoιs,andConn
ectors
O
PER
ATIO
N
O
PER
ATI
NGT
ECHNIOUE
S
2-19
.
B
eforeusing
t
he
8050Α,
it is
imp
ortant
to
n
ote
t
he
m
ax
imum
inputlimi
ts
thatmay be
a
ppli
ed to
t
he
in
strument
.Table
2-2
li
sts
t
he
maximumsi
gn
a
l
inpu
t
levels allowedfor
eac
h
function,
ran
ge,
and
inpu
t
connector
.
W
ARNI
NG
Τ
U
AVU
IU
ELEGTR
IGA
L5HOGK
,
DO
NOT
CO
NNE
CT
ΤΗΕ
CO
MM
ON
INPU
T
CO
N
-
NE
CTORTO
ANY
SOURCEMO
RE
THAN
500VDC,OR
500VACRMSABOVEE
ARTH
G
R
O
UN
D
.
2-20
.
O
PER
ATI
N
GTECHNIQUES
2-21
.
Th
efollow
in
gparagraphs
describehowtooperate
t
he
8050
Α
in
each
o
f
i
ts
seve
n prim
ary
measuremen
t
functions
.Refer to
theA
ppli
cations
paragra
ph
sfor
additionalmeasurementtec
hniqu
es
.
2-22
.AC/DC
V
oltage
(V)
2-23
.
Figu
re
2-3 describeshowtooperate
t
he
8050
Α
f
or
ac or do
voltagemeasu
rements.
For
allmeas
urements,
select
thehighest
ra
n
ge
that
w
ill
p
rovide
there
qui
red
resolutio
n
of
t
he
m
easurement.
If
m
easu
ringan
unknown
voltage,
set
t
he
DMM
on
t
hehi
g
h
est
ran
ge,
then
(if
n
eeded)
se
l
ectαlower
ra
nge
.
2-24.AC/DC
Curront
(mA)
2-25
.
Figu
re24describeshowtooperate
t
he
8050Αfor
ac
ordocurrent
measurements
.Turn
o
ff
p
ower
to
t
he
circuit
be
in
gmeasu
red
be
f
ore brea
kin
g
t
h
e
circuit
and
conn
ecting
the
8050
Αinseries
wit
hthe
current
sou
rce.To
minimiz
e
commo
n
m
ode
voltages,
break
t
he
circuitont
he
ground
side
o
fthe cu
rrent
source
.ThemA
inpu
t
connector
containsani
n-linefu
se
.
Ifthe
DMM
doesnot
respond
w
hen
m
easuri
ng cu
rrent,
check
t
he
f
use
(refer
to
t
he
fu
se replacemen
tprocedure
inthi
s
section).If
measuringanunknown
current,
set
the
DMM
on
t
he
high
est
ran
ge,
then
(i
f
needed)sel
ectαlowe
r ran
ge
.
ITEM
ΝΟ
.
NAME
FUN
CTIO
N
1
Disp
lay
41/2-digitLCDdisplay
.Usedtoind
icatemeasure
dinputvalues
and
an
over
ιan
gecondition.
Alsocon
tains a
nnun
ciato
ι sforhighvoltage,
d
ecibel-
d
isplay,andrelativemeasuremen
t functions
.
2
AC/DC
Fun
ctio
n
Α
two-position
switc
h (pu
shINandpushOU
T)
used
to select ac
:
Switc
h
(IN)
ordo(OUT)forcurr
entorvoltage
m
easur
ements
.
3
V
/mA/kΠ
/d8/S
Interlocked
switches,used
wit
htheAC/DC
Fun
ctionswitchto select
Fu
nctionSwitches
t
hemeas
ur
ementfun
ctions.Pushingone
switchwill
releaseth
e
ot
h
ers.T
h
edecibel-displayfun
ctionis
selecte
dby
pushingthe
V
andmA
switc
h
essimu
ltaneously.Theco
ndu
ctancefun
ctionis
selectedby
push
ingthek
Λ
switc
h andoneof
twopairs
ofRan
ge
Fun
ctionswitches
.
4
R
ange
Switches
Interlocked
switc
hest
h
at selectthem
easurementran
ges.Pushing
α
switchselectsthe
correspondingran
geandreleases
αdepr
esse
d
switch(es)
.
5
m
AInpu
tConn
ector
Αfu
se p
rotecte
dinputconn
ector
forcurrentm
easurements.Fuse
is
accessi
blefromthefrontpanel.
6
CO
MM
ONInpu
t
Test
leadconnectorusedasthe1οω
orcommoninpu
t
for
all
measure-
Connector
men
t f
un
ctions.
7
V
/
kCVSInpu
t
Test
lea
dconn
ectorusedasth
ehig
hinputfor
all
voltage,resistance,
Co
nnecto
r
continu
ity,condu
ctance andd
ecibel
meas
uremen
t functions
.
8
REL
ATIVEFun
ctio
n
Push-on/push-off
switch.
Use
d
to selecttherelative
f
un
ctionfor
Switch
all
measurements.
9
P
O
WER
Switc
h
Push-on/push-off
switch.Usedforener
gizingandde-energizing
theinstrument.
Page 17
O
PER
ATIO
N
L
CD
DISPLAY
8050Α-01ONL
Y
DECIBEL
FUN
CTIO
N
L
O
W
BATTERYIND
ICATO
R
INUS
E
POLAR
ITY
SIGN
DISABLEDDURIN
G
V
ac,mAANDkΩFUN
CTIO
NS
8050
ΑOVERR
ANGEINDICATION
8050ΑIMPROPER
SWITC
HSETTI
NG
8050ΑDIS
PLAYANNUN
CIATO
RS
H
IGHVO
L
TAG
E
(>40Vdc
o
r
ac
rms)
BEING
MEASURE
D
REL
ATIVEFU
NCTIO
N
IN
U
SE
ΝΟΤΕ
:Position
ofdeci
m
al
pointdepend
ent
onrangeselected.
NOTE
:
T
h
isdisplay
will
appearifthe
switc
hes
ofthoηο6οα
ara
setinanimproper
configuration
(e .g
.DCV20ΜΩ)
F
igure
2-2
L
iquidCrystal
Display
ι
BT dB
i
D
°
d
0 ~
σQU
σ
α
α
α
σ
Νε
L
ι
Page 18
Table
2-2
.MaxI
mum
InputSignal
Limits
Figure 2-3.AC/DCVoltage
Operation
O
PER
ATIO
N
AC/DC
VO
L
TAG
E
2-
5
FUN
CTIO
N
R
ANG
E
INPU
T
M
AXI
MUM
INPU
T
S
ELECTE
D
S
ELECTE
D
T
ERMINAL
S
O
VERL
OAD
DC
ALLRANGE
S
1000
Vdoorpeakac
V
V
/ kΩ/S
or
20
V
,
200
V
,
750
V
a
nd
750Vrmscontinousor107V.H
z
d
Β
COMMO
N
AC
2
V
,
200mV
750Vrmsfornolongerth
an 15
secondsor107V-Hz
DC
mA
or
ALLRANG
E
S
mAand
COMMO
N
Double
fuseprotected:
2
Α
,
250
V
f
u
sein
series
wit
h α3Α,600Vfuse
AC
V
/ k
Ω
/Sand
kΩor
S
ALLRANG
E
S
COMMON
500Vdo
or acrms
Page 19
OPERATION AC/0CVOLTAGE
CURRENT
(mA)
1 .
SELECTRANGE
2.SELECT
FUNCTION
3.CONNECT
TEST
LEADS
4.SREAKCIRCUIT 5
.
PLACE
8050
ΑmS
ERIES
2-
6
Figure
2-4.AC/DC
C
u
r
rent
Operatlon
Page 20
2-26
.
Resistance
(D)
2-27
.
F
igure2-5describeshowtooperate
t
he 8050Αf
or
r
es
i
stancemeasure
m
en
ts
.
W
h
en
k
Πisselected,
erroneous
m
easu
rements
can
occur
i
f
p
ower
ispresent
in
the
r
esistance
be
ingm
easu
red
.Ensure
t
h
atpower
is
removed
befo
r emeasu
ringin-circ
ui
t r
esistances
.
T
he
AC/DC
function
switc
h h
as
no
effect
during
resistance
m
easurements
.
2-28
.Con
du
ctance(S=1/Ω)
2-29
.
Fi
gure2-6
describeshowtooperate
the
8050
Αfo
r
con
d
u
cta
nce
m
easu
re
m
ents
.
W
h
en
S=1/flisselected,
two
ranges
o
f
m
eas
u
rements
are
available,2mS
and
200
n
S.To
se
l
ect
either
range,press
both
range
switches
(above
thegrey-shaded
area)
simu
lta
neousl
y
.
2-30
.DiodeTest
2-31
.
F
igure
2-7
describeshow
tooperate
the
8050
Αfor
diode
tests.Thethree resistance ra
n
ges
wit
h
t
h
e
d
i
ode
sy
mbol
besi
de
the
range
value
provide
α
m
easuremen
t
kvil~il
li*If
ll
~~t
:3~it
τ
3άείι5; ί+;Σλθ
1~>
RE
SISTANCE(kΩ
)
1.D
E-ENER
GIZECIRCUIT
TO
BE
ME
AS
URE
D
2.S
ELECTRANG
E
3.S
ELECTFUN
CTIO
N
4
.CONNE
CT
T
ESTLE
ADS
F
igure
2-5
.ResistanceOp
eratio
n
2-32
.
R
elative
(REL
ATI
VE)
O
PER
ATIO
N
REL
ATI
VE
voltage
s
uffi
cient
to
cause
α
s
ili
con
j
un
ctio
n
to
conduct
.
Th
ese
r
an
ges(2kΠ,
200
kΠand20
ΜΠ)can
beused
to
chec
ksi
licondiodes
and
transistors.T
he 2
k
Π
r
esistance
r
angeist
he pre
f
e r
red
diode
and
t ransistor
testingra
n
ge
andislabeled
withthelar
gest
diode
symbol(
)
.
F
or
α
silico
ndi
ode,
the
typicalforwardbias
voltage
(on
the 2
k
Π
-*
range)is0.6V.Αreversed
bias
s
ili
con d
i
ode
shoulddisplay
the
overrange
indicator(on
t
he 2 k
Π
range)
.
2-33
.
Figu
re
2-8
describeshowtoop
erate
the
8050
Αfor
relativemeasurements.
The
relative
function
stores
α
readingasan
offsetorrelativere
f
erence
value
.
W
henthe
RELATIVEswitch
is
set
to
ON
du
ringαmeasu
remen
t,
the value o
fthatm
easurementis
stored,and
t
he
REL
(relative
refere
n
ce)
a
nnunci
ator
app
ears to
therighto
fth
e
z
eroed
display
.
S
ubseque
n
t
m
easure
m
en
ts
(in
t
hesam
e
fun
ctio
nan
d
range)
are
displayed
as
thed
iff
ere
nce
b
etwee
nthe
m
eas
ured va
lu
e andthestored
re
l
ative
reference.
2-7
Page 21
O
PER
ATIO
N
CO
N
DUCTANC
E
COND
U
CTANCE(S=1/Ω)
1
.
D
E-ENER
GIZECIRCUITTO
BEMEAS
URE
D
2
.SELE
CTRANG
E
3.S
ELECTFUN
CTIO
N
4.CO
NNE
CT
TESTLE
ADS
H
IG
H
(+)
L
OW(-)
kiwi
C
0
9
1
9
m
A
Δ
Ο
ΜΙι
500
Υ
ΓΙ
Μ
~
Ι
W
ΙUSF
~_
F
ιυκ
~
ι
σ
k
Ω
8050ΑIlIGITALMU
I
,
~-
τΜ
s
-~
(METER
14
ΜΙΝd11
ΜαΧ
"
20
khLO",
CIRCUIT
NOTE
:Zero
t
he
display
(wit
hthe
REL
ATI
VE
function)taking co
ndu
cta
ncemeasuremen
ts
(seeRelativeMeasuremen
ts)
.
2-34
.
R
e
fer
to
thesa
mpl
e
displays
in
Figu
re
2-8
.
Ifthe
range
c
han
ges,
the8050
Α
a
utomaticallymultip
lies
or
divides
therelative
reference
b
ytheappropr
i
atepower
o
f
tenbefore
subtracting
therelative
referencefro
mthe
m
easu
rement.
If
t
h
e
function
i
s ch
anged,
t
he
REL
a
nnun
ciator
disappears,
and
the
r
elative
referenceis
stored
wit
hthe or
iginal
function.
W
henth
e or
i
gi
na
l
function
i
s
reselected,
therelative
referenceisrestored
(andt
he
RELannunci
ator
appears)
unl
ess
αnew
relative
referencewas
selected.Setting
t
he
RELATIVE
switchto
O
FF
or
turni
n
g
t
he
in
str
um
e
n
t
offcancels the
origina
l
relative
reference
.
2-35.Therelative
function
may
beused
withall
m
easu
remen
t
function
s:acordcvoltage,
ac ordocu
rrent,
2-
8
F
igure 2-6.Co
ndu
ctance
Operation
ac
ordo
dB,
resistance,
and
con
ductance
.Note
that
inpu
t
overload
limi
ts
arenotchangedbyt
he
u
se
o
ftherelati
ve
fun
ctio
n
.
Also,
whe
nus
in
g
t
he
r
e
l
ative
refere
nce
functi
on,
the
display
limits
donot
change
.Thepossible
readings
are
st
illsu
bjecttot
he
limi
ts
o
fthe 19999 coun
ts
o
f
t
h
e
α
/
d
converter,
regardless
o
f t
herelati
ve
reference.For
exa
mple,if
αdovo
l
tage
m
easu
rement
of+15
.000Vis
m
adeonthe
20Vra
ngean
d
storedasα
relative
refere
n
ce,
t
he
m
ax
imum
positi
ve
relative
voltage
that
could
be
displayed
wit
hou
t
overrangingis+4
.999V(+19
.999
V
input).Themaximum
negat
i
ve
i
npu
t
vo
l
tage
that
could
bemeas
uredwithou
t
overranging
is-4.999
V,which
would
causetherelative
display
readingtobe--19
.999
V
REL
.
V
ε k
Ω
/
REL
ATI
VE
P
O
WER
_
ΟΝ
ON
'50ΥAC
\ι0Ο0Υ
OC
Μ1
Ι
OFF
JIL
0
Ζ
Page 22
DIOD
ETEST(kf),
-,+-
)
1.D
E-ENER
GIZECIRC
UITTO
BEMEAS
URE
D
2.S
ELECTRange(2-+ι-rangepreferred)
3
.
S
ELECTFUN
CTIO
N
4
.CONNE
CT
TESTLE
ADS
H
IGH(+)
L
OW(-)
t
i )
ΗΙΙ
3~))~'s
sιΙιρ ~,
ωιζ
~i'-"i
4c
rom
,
F
igure
2-7.Diode
TestOper
atio
n
O
PER
ATIO
N
DIODE
TEST
2-9
Page 23
OPERATION
RELATIVE
Select
range
and
function
(use
any
measurement
range
and
function)
.
4
.
To
cancel
the
relative
function, set the
RELATIVE
switch
to
OUT
.
Connect
test
leads
and
take
the
desired
measurement
tobeusedasthe
relative
reference.While
taking the
relative
reference
measurement,
set
the
RELATIVE
switchtoON.This
will
store
the
value
as
the
relative
reference
.
3.Subsequent
measurements
will
be
displayed
as the
difference
between
the
relative
reference
and
measurement.See
insert
.
2-10
Figure 2-8.Relative
Operation
Page 24
2-36
.
Decibel
(
d
8)
2-37
.
Fi
gure
2-9
describ
eshowtoo
p
erate
t
he
8050
Α
f
o
r
voltagesindecibels
.
W
h
e
n
dB
i
s
selected,
the
8050
Α
converts
ac
ordo voltage
read
in
gs intothe
d
Bm
equivalent
(decibelsab
oveor
below
one
mill
iwatt).The
r
eferenceimp
eda
nce
f
or d
ecibe
l
m
easurements is
selected
f
ro
m
16
storedr
eference
imp
edances.T
he 8050
Αisset
up
at
t
he
f
actory
to
turn
on
with α
default
refere
n
ce
impedance
o
f
600Ω.
T
he
power-up
default
referen
ce
impedance
m
ay be
changed
to
any
o
f t
h
e
16
stored
imp
eda
nces
.(R
efertoSect
ion4f
or
information
onhow
tochange
t
he
default
setting
.)
D
ECIBELS(dB)
1
.S
ELECTFUN
CTIO
N
2
.
ύ
571771
S
Ι
π
f
20Q
AA2
2F___30-M
1
οΩ2
~~
200-2000
20M=)
-2m
s~ '
tit.ΜAl!.f
REL
ATIV
E
~IOOnS
~
VOW-ER
)
S
ELECTREFEREN
CEIMPE
DANC
E
ANDRANGE.
α
.
b
.
SETREF2SWITCHm. WHEN
CO
RRE
CT
REFERENCE
IMPEDANCEA
PPEARS
IN
DISPLAY
.SELECTΤΗΕRA
NGE.
3
.CO
NNE
CTTESTLEADS
.
Fig
ur
e
2-9
.
dB
V
oltage
Ope
ratio
n
O
PER
ATIO
N
οεειΒει
2-
1 1
Page 25
O
PER
ATIO
N
INITIALCHECKOUTPROCED
URE
2-38
. INITIA
LCHECKOU
T
PR
OCED
URE
2-39
.The fol
lowingproced
ureallowsthe
operator
to
verify
that
t
he
8050
Αisoperating
correctlyfo
rmost
fun
ctions.T
he only
test
equipment
r
equired
isαset
oftest
leads
and
accesstoα
standard
wall
socket.
Thi
s
proced
u
re
chec
ksf
o
r
generaloperatio
n o
n
ly
and
isnotintendedto
ve
rifyin
strumentaccuracy
.Pe rformancetests
and
calibratio
n adjustmen
ts
are
contained
inSect
i
o
n
4
ofthis
m
anu
a
l
f
or
the purpose oftest
in
g
instrument
accu
racy
.
2-40
.
U
se
thefo
ll
owing procedure to
verify
thatmost
o
f
t
he
function
s
o
f t
h
e
8050Αareoperating
correct
l
y
:
2-
1
2
1
.Select
t
he
AC
V
functi
ononthe
8050A
.
2
.Set
t
he
in
strumenttot
h
e
750Vr
a
nge
.
WARNIN
G
ΤΗΕLOCALLINEVO
L
TAGEISBEI
NG
MEAS
UREDIN
ΤΗΕFOLLOWINGSTEP.D
O
NOT
TO
UCH
ΤΗΕ
PROBETIPS
ORALLOW
ΤΗΕ
PROBETIPS
TOCO
ME
INCON
TACT
WITHEAC
HOTHER
WHILE
PREFORMING
ΤΗΕFOLLOWINGSTEP.
3
.
In
sert
theprobe
tipsintoαstandard
wall
socket.Note
thepreceding
war
nin
g
.The
display
should
read
the
loca
l
lin
e
voltage
.The
HVa
nnunci
ator
should
be
displayed
to
t
he
righto
fthe vo
l
tage
read
in
g
.
4
.
Momentarily
set
t
he
in
strumentto
the20
V
ra
nge.Th
e
overra
nge
indi
cator
should be
displayed
.
5
.Set
t
he instrument tothe
750Vrange
.
6
.Set
t
he
REL
AT
IVEswitch
to
ON
.
T
hedi
splay
s
houl
d
read
+000.0(thedispla
ywill
z
ero
m
omen
tari
lyandwillthendisp
lay
therelative
vol
tage
o
fth
e
line
fluctuations)andt
he
REL
a
nnunci
ator
appears
.
7
.
R
emove
thetest
leadsfro
mthe
wall
socket
.
8
.Set
t
he
REL
ATIVEswitchto
O
FF
.
9
.Select
theresistancefunction.T
he over
range
indi
cato
rshouldappear
in
thedispla
y
.
10
.
Set
t
he
instrumenttothe
2000
range andshort
the
test
leads
.The
display
s
houl
d
read
00
.00
.
12
.
S
h
ortthe
testleads.Th
e
overrangein
dicato
r
s
houldappear
inth
e
display
.
13.Se
l
ect
the
dB
function,then
push
t
heREF
Ζ
(
righ
t-mostrangeswitch).T
he turn-on
d13
r
efe
r ence
val
ue(nominall
y 600)
should appear
on
the
display
f
or app
roxim
ately
three
seconds,
foll
owedby
theother15storeddBreference
i
m
pedances
sequencing
t
h
r
oughatαί/second
r
ate
.
14
.Pus
honeofthe
other
ra
ngeswitch
es,noting
the
value
o
fth
e
reference
imp
edance,
wait
αfew
seconds,
t
he
n
pushthe
REF
Ζ
switchagain
.
The
value
that
a
pp
eared
when
t
he ra
n
ge
switches
were
chan
ged
s
h
ould
appearfor 3
seco
nds
f
ollowed
by
the
se
quen
ce
o
fth
e
ot
her
reference
imp
edances
.
15.This
concludes
t
h
e
InitialCheckoutprocedu
re
.
f
o
r
t
he
8050Α.
If
t
he per
forman
ce
o
fthe
in
str
umen
t
is
in
qu
est
ion
refer to
t
he
P
erformance
tests
in
Section 4 o
fthi
smanua
l
.
2-41.A
PPL
ICATIO
NS
2-42
.T
he
f
ollow
ingp
aragraphscon
ta
in
information
on
andmeasure
m
enttec
hniqu
es
t
h
at
expand
t
he
u
se
o
fthe
seve
n
prim
ary
functi
ons
o
fthe
8050
Α
.
Th
ese
application
s
are arran
gedbyt
he
m
easurement
type
.
2-43
.
DCVoltageMeasuremen
t
2-44
.T
he
f
ollowing p
aragraphs
containadditio
na
l
i
nformation
on
a
nd
m
easu
rementtec
hniqu
esfor
do
voltagemeasu
re
m
ents
.
2-45
.
REFEREN
CING
D
BM
TO
CIRC
U
IT
I
MPEDANCE
S
2-46.The8050
Α
prov
i
des16commonlyused
circuit
imp
eda
nces
touse asαre
f
erence
imp
edance
w
hen
makin
g
d
Bm
m
easu
rements.However,
this
doesnot
cover
all
circuit
imp
edances
.There are
twoproced
u
resfor
re
f
erencing d
Bm
m
easurementsto
other c
i
rc
ui
t
imp
edances.Thefirst
one
re
qui
res
an
ac or
do voltage
standard.Thesecond
procedu
reisactually
α
correction
f
actor
that
can
be
usedifα
voltage
standard
isnot
available
.
2-47
.Use
thefollowi
ng p
rocedure to reference
d
Bm
m
easurements
to
imp
edances
that
arenotprovided
b
yth
e
8050
Α
:
1
.
U
se
t
he
f
ollowingfor
mul
atoconver t
the
circuit
Se
l
ect
theS=1/fl
(cond
u
ctan
ce)
function,
2
impedanceintoαrefere
nce
level:
m
S
range.Thed
i
s
pl
ay
sho
ul
d
read .0000t5
counts
.
R
eferenceLevel=,/6
.001
χ
c
ircuitimp
eda
nce
Page 26
2
.Con
n
ect
the
8050Αto
theVoltage
Stan
dard
as
f
ollows
:
V
/
k
Ω
/S
i
np
u
t
co nn
ector
to
the
V
oltage
Stan
dardHioutput,
CO
MMON
input
connector
to
theVoltage
Sta
n
dard
lowoutput .
3.Select
t
h
e
V
function(ei
t
h
er
ac
or
dc,
dependin
g
upon
t
he
V
o
l
tage
Standardused)
.
4.Adjust
the
V
oltage
Stan
dard
to
output
the
reference
levelcalculated
in
step1 .
This
value
s
hou
ld
ap
pearint
h
e
8050
Α
d
ispl
ay
.
5
.Select
t
he
dB
function
.
6
.
Set
t
he
RELATIVEswitch
to
ON
.Decibe
l
m
easurements
will
now
be
referencedtot
he
circ
uitimp
edance
.
2-48
.
U
se
thefollowingprocedure to
obtainα
correctio
n
f
actorfor
referencingdBto other
circuit
imp
edances
w
i
t
h
o
u
t
t
he u
se
ofαVoltage
Standard
:
1 .
Select
t
he
REF
Ζ
thatisclosesttothe
im
pedance o
f t
h
e
circuit
to
bemeasured
.
2
.Ca
l
culate
t
h
e
reference
imp
eda
nce
correctio
n
f
actor using
t
he
f
ollowing
e
quati
on
.
10
log
Circuit
Impedance
REF
Ζ
=
Correctio
n
F
actor
3
.
Add
thecorrectio
n
f
actortot
he
m
eas
u
red
value
.
2-49
.CIRCUITLOADING
ERROR
(VOLTAGE)
2-50.Circuit
loading
errors
occur
w
henvol
tage
m
easu
rementsare
ta
kenonhigh
imp
edance
circuits
.
Thi
s
isbecause
t
he
DMM
l
oads
thesource,
t
huschangin
g
t
he
o
pe
ratin
g
voltage
o
fthe sou
rce.As
longast
h
e
circuit
im
peda
nce
(source
imp
edance)islow
comparedtot
he
inputimp
eda
nceofthe
DMM
t
hi
s
error
may
be
insi
gnifica
n
t
.
For
exa
mpl
e,
w
hen
m
eas
ur
i
ng
α
circuit
wit
h
α
sou
rceimpeda
nce o
f
1kΩorless,
theerror
w
ill
be
<
.01
%α.
Ifthe c
ircui
t
loading
errorissignificant,use
t
he
appro
pr
i
ateformula contained
in
Figu
re
2-10
to calculate
t
he percen
tage
oferror
.
2-51
.CurrentMeasurement
2-52
.
Th
efollowingparagraphs
con
tainadditio
na
l
inf
ormationonan
dmeasu
reme
n
t
tec
hniqu
esforcurrent
m
easu
rements
.
W
ARNING
O
PER
ATIO
N
RE
SISTA
NCEMEAS
UREMEN
T
O
PERATOR
INJURY
AND
INSTRUMENT
DAMAGE
MAY
RESULT
IF
ΤΗΕ
B
ACKUP
FUSE
(F2)
BLOWS
WHEN
C
URRENT
IS
BEING
MEASURED
FROM
ΑVOLTAGE
O
F
G
REATER
THAN
600
V
OLTS
.
2-53
.BURDEN
VOLTAGE
ERROR
2-54
.
W
hen α multim
eter
isplacedinseries
wit
hαcircui
t
tomeas
u
re
c
u
rrent,
the
voltage
dro
pofth
e mul
timete
τ
in
du
cesanerror
.
Thi
s
errorisca
ll
ed
theburde
n vo
l
tage
.
Themaximum
full
-scale
burdenvoltagesfor
the
8050
Α
are 0
.3V
f
or
thefour
lowest
ranges and0
.9Vfor
the
hi
ghest
range
.
2-55
.These
voltage
drops
can
affect
the
accuracy
o
fthe
currentmeasu
rement
ifthe c
u
rrent
sou
rce
is
unreg
ul
ated
and
t
he
r
esistance
ofthe s
hun
t
andfuses
o
fthe
multim
eter
exceeds
1 /
1000
o
fth
e
source
resistance
.
Ifthe
multim
eter
burden
vo
l
tage
is
sig
nifican
t,
t
he
f
or
mulain Fi
gure2-11
canbe
u
sedtocalculate
the burden
voltage
error
.
2-56
.
R
esistanceMeasurement
2-57
.
Th
efollowingparagraphsconta
in
additio
na
l
information
on
andmeasurementtec
hniqu
esfor
resista
nce
m
eas
u
remen
ts
.
1.DC
V
OLTAGE
MEASUREMENTS
Loading
Error
in °/
ο =
100
χ R
s-(Rs
+
107)
Where
:Rs
=
Sourceresistanceino
hms
of
circuitbeingmeasured
.
2.AC
V
OLTAGE
MEASUREMENTS
F
irst,determine
input
impedance,
as
follows
:'
10
7
Zi
n =
1+(2
π
-
FR'in'Cin)2
Where
:Zin =
effective
input
impedance
R
in
=
107o
hms
Cin=100
χ
10-1 2
F
arads
F=
frequencyinHz
Then, d
etermine
source
loading
errorasfollows
:
L
oading
Errorin°/ο=
100
χ
Zs
+
in
Where
:Zs =
source
impedance
Zin =
input
impedance
(calculated)
"Vector
algebra
r
equired
F
igure
2-10.CircuitLoadingError
2-13
Page 27
O
PER
ATIO
N
RE
SISTANC
E
ME
AS
UREMEN
T
ERROR
:
Error
i
n
ο
/ ο=100χEb/(Es
-
Eb)
Errorin
Α=
(Eb
χIm)/(Es-
Eb)
R
I
E
s
=
Source
voltage
R
I=Loadresistance+Source
resistance
Im=
Measure
dcurrent(dis
p
lay
reading
inamps)
E
b=Burden
voltage
(calculate
d
)
Eb
=meas.c
urren
t
[(200/c
urrentrangeinmA)+
.351
EXAMPLE
:
Es
=
15V
R
I=100kΩ
I
m=
148
.51μΑ(
.14851mA)
Eb=148
.51
χ
10-1χ[(200/
.2)+.351
=
148
.51χ10
- 6χ1000
.35=148
.56
mV
Max.erro
rinο/α=
100χ[148
.56
mV
/(15V-
.14856V)1
=1.0003%
A
ddthistotherangespec.
accuracy
:
Max.erro
rin
%=1.0003%
t(
.2%+2
digits)
Max.erro
rin
Α=
(148
.56
mVχ
148
.51μΑ)/(15000mV-
148
.56
mV)
=
1
.486
μΑ
Add1
.486
μΑtothe
readi
ng
forcorr
ectcurrent
2-58
.
TE
STLE
ADCO
MPEN
SATIO
N
2-59
.
W
hen
m
eas
ur
in
g
low
resistances
(less
than2000)
t
he e
ff
ect
oftest
lead
resistance
m
ay
add
α
s
ignif
icant
error
.
T
hi
s
erro
r
m
ay
be compensatedforbyusing
the
relative
function
of
t
he
8050Α.Use
t
he
f
ollowing
p
roceduretocompen
satefortest
lead
resista
nce
.
2-60.RE
SISTANCECOMPAR
ISONS
2-61
.
When
o
ne
resista
n
ce
va
lu
e
is
n
eeded
f
or
several
m
easu
rements(e
.g
.
sorting
resistors
to
find
α
m
atc
hed
p
air)
t
herelativefunction
of
t
h
e
8050Αcan
beused to
s
implif
y
t
he
p
rocess.T
he
f
ollowingprocedure
is
an
exa
mpl
e
o
f
h
ow
the
relative
functi
o
n
may be
u
sed
to
m
atch
resistors
:
2-14
1
.Setup
t
he
8050
Αasshow
ninFigu
re
2-5,
steps
1
through3
.
2
.S
h
ort
thetest
leads
toget
her(p
ress
t
he
test
leads
together
firmly)and
set
t
he
REL
ATIVEswitc
h
toON.
3
.
D
isengage
thetest
leads
an
dproceed
w
i
t
h
l
ow-
l
evelresistance
m
easu
rements.The
resista
nce
o
fth
e
test
leads
willbesubtractedfrom
the
readings
o
fsubse
qu
en
tmeasu
rements.
1
.Se
l
ect
the
k11
functiononthe
8050A
.
2
.Se
l
ect
an
approp
riate
ra
nge
f
or
theresistance
being
m
atched
.
3
.
Measurethe
resistor
.
Figure
2-11.Calcu
latingBurdenV
oltage
Erro
r
λ
4
.
W
i
t
h
t
he
resistor
va
lu
e
still
displayed,
set
the
RELATIVEswitch
toON.
5
.
M
easure
theother
resistors
.
Choose
t
h
e
resistor
wit
hth
e
least
deviatio
n
fromthe
resistor
first
m
eas
ured
.
2-62.Co
ndu
ctanceMeasurement
2-63
.
Th
efollowingparagraphs
con
tainadditiona
l
information
onand
m
eas
urem
ent
tec
hniqu
es
f
or
con
d
ucta
n
ce
m
easurements.
2-64
.HIGHRE
SISTA
NCEMEAS
UREMEN
TS
2-65
.
T
he co
ndu
ctance
functionof t
he
8050A
can
be
u
sed
tomeasu
rehighresistive
(low
leakage)
compo
ne
n
ts
(diodes
and
cap
acitors)
while
minimizin
g
noisepr
oblems
.
Th
e
two
co
ndu
cta
nce ran
ges,
2mSand
200nS,
can
be
used
f
or
making
resista
nce
m
easuremen
tsfrom500Ωto
10
ΜΩ
and5ΜΩ
to
100,000
ΜΩ
.
2-66
.LEAKAGERESISTANCEMEASUREMEN
TS
2-67
.
U
se
t
he stan
dard
con
d
uctance function
f
or
leakage
testing
onpurelyresistive
components
(e .g
.,
cablesandpcb's)
.Rememberto
zero
thedisplay
reading
wit
hthe
re
lativefunctionbef
ore
taking
con
ductance
m
eas
urem
ents.
ΝΟΤΕ
Under
high
humidi
ty
co
ndition
s,
fingerp
r
in
ts
.
andot
h
e r r
esidua
lsu
rface
conta
minan
ts
can
create
their
ownleak
age
paths.Usecleantest
l
eads to
minimi
ze
theeffect
ofleakage
paths
.
Page 28
2-68
.
DIODELE
A
KAGETE
STS
2-69
.
Diode
leakage(Ικ)tests
re
qui
re
that
thediode
junctio
n b
ereverse
biased
w
hil
e being
m
eas
ured
.
Connect
the a
n
ode
ofthediodetothe
CO
MMON
i
npu
t
conn
ecto
r
to
r
eversebias
α
d
i
ode
junction
.
Α
good
s
ilicon d
i
ode
w
il l
pr
oduceanin-scale
display
reading
on
the200nSrange
when
reverse
b
i
ased
.
2-70
.
TRAN
SISTO
RTESTER
2-71
.
The
t
ran
sistor
testerdescribedint
he
f
ollowing
paragraphs
providesa
pproximate
test
information
.
B
eta
is
testedusingα
VCε o
f
2V
a
n
d
an
Ic ofabout
200μΑ.
Thistran
sisto
r
testerisusefu
l
f
o
rchec
kin
g
theprope
r
ope
r
atio
noft
r
ansistors
and
approx
im
atebeta
valuesfor
comparativemeasurements
.
2-72
.
The
transistor
teste
rfixtu
reisdescribed
i
n
Figu
re
2-12
.
W
hen
assembled
and
connectedtotheV/kΩ/S
and
theCO
MMON
inpu
t
co
nn
ector,
t
h
e
8050Αcanbeused
to
deter
min
e
the
f
ollowing
informati
o
n
about
tra
ns
i
stors
:
ι
T
ra
ns
i
stor
type(
ΝΡΝ
or
ΡΝΡ
)
S1
TOGG
LE S
WITC
H
S P
DT
W
IRETO
BASE
CO
N
TACT
O
F
T
RAN
SISTORSOCKET
ι
D
efective
transistors(s
hor
tedoropen)
ιCollector-to-e
m
itter
lea
kage
(ICES)
ι
B
etafrom10 to
ΙΟΟΟinα
single
ra
nge
.
2-73
.
T
ransistortypeisdeter
min
edbysetting
the
sw
i
tc
h
on
t
h
e
tester
fixt
u
retoBETA,
setting
the
8050
Αtothe
2
m
S
range,and
observing
the
disp
layreading
.Ifα
low
reading(<0
.0100)isdisplayed,
reverse
t
h
e
test
fixture
at
theinput
conn
ectors
.Ifthecol
l
ector
o
fth
e
tra
nsi
stor
is
now
conn
ectedtothe
CO
MM
O
N
inpu
t
conn
ector
t
he
trans
i
storisα
ΡΝΡ
type.
An
ΝΡΝ
ty
pe ωί
11
h
ave
its
collectorconnectedtotheV/kΩ
/Sinput
conn
ector
.
2-74
.Defective
Transisto
r
s
16
2-75
.
Ifthe
transistorisdefective,
thefollowing
indi
cations
wi
llap
pear,
regardless
oftransistor
t
ype
or
testposition:
F
igure
2-12.Tra
n
sistorB
eta
Test F
ixture
1.An
opentransistor
w
ill
p
r
od
u
ce α display
reading
of0
.0005orless
.
O
PER
ATIO
N
CO
NDU
CTANCEMEAS
UREMEN
T
Ρ1BANANA
PLU
G
W
IRETO
CO
NNE
CTOR0
.75"
SPACINGS
W
ITCHARM
G
ENERALRADIO
TYPE
274
MB
2-15
TRANSISTO
R
UNDERTE
ST
TEST
ι
_
F
IXT
URE
C
>
ι
Ι"Ρ
1
BETA
R
1
Ι
~1Μι-
Ι
PLUGINTO
>
Β
>
7501<
Ω
Ι
CO
MMONAN
D
Ι
V
/ΚΩ/nS
I
NPU
T
r
ICES
1
Ι
Ι
T
ERMINAL
S
>
Ε
>
Ι
00
.
Page 29
OPERATION
REL
ATI
VE
MEASUREMEN
T
2
.Α
shorted
tra nsi
storwill
pr
oduceanoverra
n ge
indi
catio n
onth
e
d
isplay
.
2-76
.TransistorLeakage
Test
2-77
.Useth efollowingproce
dureto
test
t ran
sistorsfo
r
leakage
(ICES)
:
2-
1
6
1.In
sta
llthetransistor,
a ndco
nn
ectth e
test
f
ixture
to
the
8050
Α
(see
preced
in g
par
agraphs).
2
.Setth eswi
tchont
h
e
testfixt u re toICES.
3
.Selectth e
co
ndu cta ncefun
ction,2mSra n ge
on
the
8050
Α
.
4
.Α
readingof
m
oret
han0
.0020
(6,4A)
indicates
αfaul
ty
trans i
stor
(silicon)
.
2-78
.Tra n
sistor
B
eta
Test
2-79
.
U
seth
efoll
owingproceduretotestthebetaof
α
trans i
stor
:
1.Installth
e
transistorandconn
ectthetest
fi
xt
u
re tothe8050Α(seeprece
din
g
p
aragraphs)
.
2
.Settheswitchinth
e
test
f
i
xture to
BETA
.
3
.Selectth
econductance
function,2mSrange
on
the
8050
Α
.
4
.
N
otethedis
p
la
y r
eading onthe8050Α,then
shiftthedecimalpointthree pl
acestothe
r ight
.
Thiswill
beth
e
b
etaofthe
transistor.
ΝΟΤΕ
B
eta
isαtemperature-sensitive
m
easurement
.
Allow
sufficient timefo
r
eachteste
dtr
an
sisto
r
to
stabilize.Avoidtouc
h
ing
the
tran
sistorcase
with
yo
urfinger
s
w
hil
ema
kin
g beta
m
easurements
.
2-80
.
R
elat
i
veMeasu
rement
2-81.Th
efollowing p
aragraphs
con
ta in
additional
information
on andmeas
ur
ement
tec
hniquesforrelative
m
easurements
.
2-82
.DECIBE
L
(d
B)CIRC
U
IT
GAI
N
O
R
L
OSS
2-83
.Th
e relative
functi
ono
fthe8050Αmakesit
easy
to
deter
mi
nethega
in
o
r
l
oss (indecibels)of
αci
rc uit.
By
u
sin
g
the relative
function,
a
ny voltage
l
evelcan
beu
sed
asthe0 dBref
ere
ncepointfordBmeasurements.Figure
2-13
describes
h
ow
touseth
erel
ative
fun
ctiontomeasure
circ
ui tgain
orloss
indBs.
2-84
.ACVoltage
an
d
Current
M
easu
r
eme
n
t
2-85.Th
efollo
wingparagraphs
containad
d
itiona
l
information
on andm
eas
urement
techniqu
esfo
r
ac
voltageand
c
u
rrentmeas
u rements
.
2-86
.
T
R
UE-RMSMEAS
UREME
NTS
2-87
.Oneofthem
ostuse
ful
f
eat
u
resofthe8050
Α
i
sth e
d
i
r
ectmeas
u
reme
ntoftrue-rmsac
voltages
a n
d
ac
c
urr ent
.Mathematically,
r
msisdefine d asth
e
s
qu
are
root
o
fth
emea
n o
fthes
quaresof
t
hein
stanta
n
eous
vo
l
tages
.
Inph
ysical
terms, rms
isequival
e
n
t
tothedo va
lu e
t
h at
diss
ip
atesthesameam
oun
tofheat in a
resistorasthe
or
iginal
waveform.
Tru
e-rms
i
s t
h e effectiveval
ue of
any
w
ave
for
mand
r
e p
r
esents the
e n
ergy
levelof t
he signal.It
is
used
directly
inth
erel
ationshipso
f
O
hm'sLawand
p r
ovidesαreliable
basis
f
orcomparisonsofdiss
imil
ar
waveforms .
2-88
.
M
ost
multim
etersinu
se
todayhave a v
erage-
res
ponding ac
converters
ratherthantru
e-r
m
s
co
n
verte
r
s
likethe
8050
Α
.Usually
t
hegainin
average-respo ndin
g
m
eters
is
adju
sted soth atth
e
readinggi
vestherms
value,
p
rovidedthe
inpu
t signal isα
harmonic-f
reesinusoid.
H
owever,
if thesignal
isnotsinusoidal ,theaverage-
respondingm
eter
does
notgiveα
correct rms
reading
.
2-89
.The
8050Αaccon
vertercalcul
atesth
e rmsvalu e
through an alog co
mpu
tation.Thismeansthat8050
Α
readings
are
acc
u ratermsvalu
es
f
or
mixed
frequ
encies,
m
od
ul
atedsi
gnals,square
waves,
sawtooths,
10%
σ-d
u
ty-
cyεlepul
ses,
etc
.
2-90
.
WAVEFORM
CO
MPARISO
N
(RM
S
VS
A
VER
AGING
METER
S)
2-91.Fi
g
ure2-14sh
owsth
e relations
hip
between
co
mmonwaveformsandthed
i spla
y r
eadingsofth
e
8050Αcomparedtoaverage-
respo
ndingm
eters.Figure 2-
14 alsoillustratestherelations
hip
betweenac
and
do
m
eas u reme
n
ts forac-coupledm
eters
.For
exa
mpl
e, the
first
wavefor
m
(inFigure2-14)
i s
αsin e
wave
withαpea
k
vo
l
tage
of1
.414V.Bot
hthe8050
Αandtheaverage
respondingmete rsdi splayt
h e
correctrmsreading
of
1
.000V(t
hedocomponentequals0).However,
the1.414
V
(peak)
rectifiedsquarewaveprod
u ces α
correctdoreading
(0 .707
V
)onbothm
eters
buto nlythe8050Αcorrectly
m
easurestheac co
mponent(0
.707V).Theaverage
res
p
on
d ingm
eter
m
easurestheac componentofth
e
rectifiedsqu
areas0
.785V,
which
i
sanerrorof 5
.6%ο.
2-92.CRESTFACTO
R
2-93
.
Thecrestfacto
r o f αwa veformi sth e
ratio
o fth
e
p
ea
k tormsvoltage.Inwaveformswh
ere
thepositive
and
n
egativehalf-cycl
eshavediff
erentpea
k voltages,th
e
hi ghervol
tageis
usedincompu
ti
ngthecrestfactor.Crest
f
actors
startat1
.0for
αsqu
are
wave(peakvoltageequal s
rms v
oltage)
.
Page 30
2-94
.The8050Αcanmeasure
signals
wit
h α
crestfactor
of3.0orless,
at
full
scale
.Figure
2-15
illu
strates
some
typica
l s
i
gn
alsand
t
he
i
r
crestfactors
.The
waveforms
in
Figu
re
2-15
show
that
α
s i
gnalwithα
crest
f
acto
rof
greater
t
han
3.0i
snot
common.
2-95
.To
ensurethat
α
s
ignal
m
easu
red
wit
hthe 805
-
OA
h
asαcrestfactor below3.0,meas
u
re
t
h
e peak
valuewith
an
ac co
upl
ed osc
ill
oscope
.
Ifthe peak valu
eisnotmore
tha
nth
ree
times
thetrue-
rm
sread
ingofth
e
8050Α,
t
hen
t
h
e
sig
na
l
s
crestfactoris3.0orl
ess.Another
m
ethod
o
f
ver
ifyin
g
the
errorcaused
by
t
he
crestfactor
ofα
s
i
gna
l i
s
to
compare
t
heread
ingofth
e
8050Αwithαreading
on
the
n
exthigher ra
ngeof
t
he
8050Α.The
8050
Α
c
r
estfactor
cap
ab
ilityin
creasesfrom3
.0for readings
l
ess
tha
n
full-
scale.The
crestfactorcapabilt
y
of
t
h
e
8050Αisshow
n
by
t
he
f
ollowing
equ
ation
:
CrestFactor
Capab
ili
ty=3
Ran
ge
Input
Theerrorcausedbyexceeding
t
he
crestfactor
of3.0at
full
sca
l
e,
w
ill
be redu
ced significan
tlyont
he
n
exthigher
F
ig
ur
e 2-13.dBCircuit
Gai
n orL
ossMeasurements
O
PER
ATION
ACVO
L
TAG
E/CU
RREN
T
ME
ASUREMENT
2
.
3
.
U
sing
the dB
f
un
ctionon
the
8050Αmeas
ur
e
t
h
e voltage
atΤΡ1
(or
i
n
te
nde
d
r
eference)
.
Wh
ile
meas
urin
g
thei
n
te
nd
edrefe
ren
ce,
set
the
REL
ATIVEswitchtoON.
In
this
circ
u
it,
1
mV
b
ecomes
the 0
dB
r
eference
.
All
sub
sequent
dB
m
easurements
i
nth
e
circuit
are d
isplayedas
the
loss
orgainof
t
h
e
circuitm
dB
.
ΤΡ
1
O
dB
(ref)
r
--
"
ΤΡ
2
+60
dB
ΤΡ
3
+57
.5
dB
.
.--0
;
ΤΡ
4
+74
d13
ΤΡ
5
+66
dB
ΤΡ
1
m
easu
rementra
ngeof t
he
8050Α.
T
h
e
crestfactor
cap
ab
ili
ty at
1 /10scale approaches10.
2-96.CO
MBINE
D
AC
AND
DC
SIGNA
L
MEASURE-
MEN
TS
2-97
.
I
tis
sometimesnecessarytom
easureanacsig
na
l
r
idin
gonα
dolevel.Anex
a
mpl
e
ofthis
ty
pe o
fsignal
i
s
show
n
in
Figu re
2-16.To
obtainan
accurate
m
easu
remento
fthe
tota
lrm
s
valuefor
these
signa
l
s,
p
erfor
mthe
f
ollow
in
g
steps:
1
.
M
easuretheac
compo
nen
t
o
fthe s
i
gna
lusin
g
theAC
V
function
.
2
.
M
easure
t
he docompon
ento
fthesignal
usin
g
theDC
V
function.
3
.
U
se
thefollowing
formula
wit
hthevalu
es
obtainedinste
p
s 1and2to
determine
thetota
l
r
m
s
value o
fthesi
g
nal
:
Total
RMSValu
e
=
(
αε componentrms)2+
(dc co
mp
o
nen
t)
2
2-17
Page 31
O
PER
ATIO
N
ACVOLTAGE/C
URRENTMEAS
UREMEN
T
2-
1
8
F
igure
2-14.W
aveformComparisons
PEAK
VOLTAGES
DIS
PL
AY
RE
ADI
N
GS
DCAND
AC
AC-CO
UPLE
D
AC
COMPONENTONLY
TOTAL
RM
S
DC
I
NPU
T
W
A
VEFORM
PEAK
to
PEAK
PEAK
RM
SCAL
"
8050
Α
COMPONENT
T
RUE-RM
S=
ONLY
αε
2
+
dε
'
SI
NE
ΡΚ
2
.828
1
.414
1
.000
1
.000
0
.000
1
.000
0
f),,
ΡΚ-ΡΚ
RE
CTI
FIEDSI
NE
(FULLWA
VE)
ΡΚ
+
1
.414
1
.414
0
.421
0
.436
0
.900
1
.000
ΡΚ-ΡΚ
0
RE
CTIFIEDSI
NE
(HALFWA
VE)
ΡΚ
2
.000
2
.000
0
.779
0
.771
0
.636
1
.000
Ν
~ΡΚ-Ρ
Κ
0
SQ
UARE
ΡΚ
--~-
0
ΡΚΡ
Κ
2
.000
1
.000
1
.111
1
.000
0
.000
1
.000
RE
CTIFIED
SQ
U
A
RE
ΡΚ
ΡΚ-ΡΚ
-y
1
.414
1
.414
0
.785
0
.707
0
.707
1
.000
0-
-n
T
RECTANGULAR PULS
E
ΡΚ
Ρ
0
Χ
Τ
2.000 2
.000
4
.442
Κ
Ζ
2
Κ
2D
2
-,/D
Υ
D=Χ/Υ
Κ=
D-D`
TRIANG
LE
SAWTOOT
H
ΡΚ
3
.464
1
.732
0
.962
1
.000
0
.000
1
.000
10
ΡΚ-ΡΚ
"
RMSCALIS
ΤΗΕ
DISPLAYEDVA
LUEFOR
A
VER
AGERESPONDINGMETERS
THATARECALIBRATEDTO
DISPLAY
RM
SFORSINEWAVE
S
Page 32
F
igure
2-15.C
r
est
Facto
r
Figure2-16.TotalRMSValue
2-98
.AffectsofOffsetin
ACMeasurements
2-99
.
Th
e
8050
Αisα
true-rms-responding
multim
eter,
and
thedis
pl
ay
w
ill
indi
cateαreadingoftypica
lly
10to20
digits
(beca
u
se
ofamplifiernoise)
w
henthe
inpu
t
is
s
h
orted
inth
eACVorACmA
function
s
.Theaccuracy
o
f
t
he
8050Αisnot
affectedbythis
in
terna
l
off
set
even
w
hen
m
easured inputsare
at
t
he spec
ifi
ed floor o
fthe
multim
eter
(5%αo
ftheran
ge
selected)
.
W
h
en
t
h
e
r
m
s
valueo
fth
e
two
sig
na
l
s
(interna
loff
set
and
5%οofrange
inpu
t) is
calculated,
as
inthe
f
ollowing
equ
ation,the
insignifican
t
effectoftheoffsetissh
own:
Totalrms
digits
=
202-F10002=
1000
.2
Thedis
pl
a
y
of
t
he
8050Αwillread
1000
digits
.
O
PER
ATIO
N
ACVOLTAGEIC
URRENTMEASUREMEN
T
2-100
.
B
ANDWIDTHLIM
ITATIONS
2-101
.Signals wit
h
r
ectangula
r
wave
f
o
rms
contain
comp
onentfrequencies
thatar
emuchhigher
t
h
an
the
fun
da
m
ental
f
reque
ncyused
todescribe
them.
The
componen
tfrequencies,forrise
times
less
than
1
m
icrosecond,
exceed
the
200
k
H
zban
dwidth o
fth
e
8050
Α
(and
willpr
od
u
ce α
lowreading
display)
.Fo
r
example,α10-kHzsquare
wave
withα
r
i
se
t
ime ofl
ess
t
ha
n1m
icrosecond
w
ill
p
r
oduceαdisplayreading
that
is
approximately
1%αlow
and proportionally
lowerfor
highe
rfrequency
square
waves
.
2-102
.ME
ASURINGA
MPL
IFIERBANDWIDT
H
2-103
.T
he ac
voltage,
dB,and
RELATIV
E
function
s
ca
n be
u
sed
toget
hertom
easure
thefre
quency
res
p
onse
(ban
dwidth)
ο£ anaccircuit .
Use
thefollowing
proced
u
re
tomeasure
t
h
e
ba
ndwi
dt
h o
f
an
amplifier
.
Ι .Co
nn
ect
t
he
amplifier,
signalgenerator,
load,
and
8050Αas
show
n in
Fi
gure2-17
.
2
.On
the
8050Α,
select
theAC
V
functi
o
nan
d
α
ra
ngeappropri
atefor
the ou
tput
o
fthe
a
mpl
er
.
3
.
Adj
u
st
the sig
na
l
gen
eratorfor α
s
ignal
l
eve
l
t
h
atiswit
hinthe
inpu
t
operating
range
o
fthe
amplifier
.
4
.T
urn
on
the
test
e
quipmen
t
.
5
.
B
eg
innin
gatα
lowfre
quency (20Ηz
),
steadly
increase
the
o
utpu
tfrequen
cy
oft
he s
igna
l
gen
erator
w
hil
e
observing
t
he
ac
voltage
readingonthe8050Α.
Typically
t
he ac vol
tage
readings
w
ill
rise
to
αpeak,leve
l
ou
t,
then
begi
n
tofa
ll
.
An
exa
mpleofth
is
respo
n
se
curve
is
sh
ow
n
inFigu
re
2-17
.
6
.Reduce
t
he outpu
tfre
quencyofthesi
g
na
l
generator
to
the pea
k or
start
o
f t
he upp
er
pl
ateau
of
t
h
e ac
voltage
readi
n
gs
.
7
.On
t
he 8050
Α,select
the
d
B
functi
on,t
hen
set
t
he
REL
AT
IVEswitch
toON.
Thi
s
estab
lish
es
the0dBrelative
refere
nce
.
8
.
In
crease
the
outputfrequency
o
fthe s
igna
l
generatorunti
lth
e
d
B
readi
n
g
reaches-3.00
dB.Note
t
he
f
requency
of
t
hes
i
gnalgen
erator
.
T
h
is
w
ill
be
t
he up
perfre
quencylimi
tofthe
bandwidth.
9
.
D
ecrease
the ou
tputfrequency
o
fthe
signa
l
generatorsothe
dBreadingsincreaseto0
d
B
2-19
W
A
VEF
O
RM
C
RESTFACTO
R
SQ
UAREWAVE
1
.0
SINEWAVE
1
.414
TRIANG
LE
SA
W
TOOT
H
AV
1
.732
M
IXED
FRE
Q
UENCIES
1
.414 to
2
.0
SCROU
TPUT
1,414to3
.0
0F100%-10%
WH
ITENOIS
E
IMYMMM
3.0to4.0
AC
CO
UPLE
D
α
PULSE TRAI
N
3.0b/α-1
SPI
KE
-
T
>9
.0
Page 33
2-104
.
Α
s
imil
ar
tec
hni
quecan
beused
todeter
min
e
the
f
r
equency response
ofotherac
c
ircui
ts,
suchashig
h-p
ass
or low-pass
fil
ters,notc
h
fil
ters,
etc
.
SIGNA
L
G
ENER
ATO
R
A
MPLIFIER
d
8
Rel.Ref
.Level
---0
dB
-3
dB
i
00
F
igure
2-
1
7
.
M
eas
uringAmp
lifierBan
dwidt
h
tec
hni
qu
e
f
ormeasuring
the
bandw
idthof
α
circ
ui
t,
to
f
ind
theQofα
s
in
g
l
e
tuned
c
i
rc
ui
t
:
_Resonant
F
requency
Q-2
χBan
dwidth
L
OAD
Ι
ι
Ι
Ι
ι
ι
f,
fc
f
τ
Ba
nd
widt
h
(BW)
8050
Α
O
PER
ATIO
N
ACVOLTAGE/C
URRENTMEASUREMEN
T
an
d
thendropagainto-3.00
dB
.Note
t
he
2-105
.FINDING
ΤΗΕ
QOF
Α
SING
LE
T
UNE
D
f
requency of
t
h
e
signal
ge
n
erator.
This
w
ill
be
CI
RCU
IT
the
lower
f
requency limitof
t
h
e
bandwidth.
2-106.Use
the
f
ollowing
equatio
nandth
e
applicatio
n
Page 34
3-1
.
INTRODUCTIO
N
3-2
.
Thetheory
o f operation ofthe
8050
Αisdiscu
ssed
on twolevels.Fi
rst,th
e
Functiona
l
Descript iondiscu
sses
theoperatio
n
of
the
DMM
in
ter
m
softh e
functiona
l
re
l
ations
hipso fthemaj
or circuits.Second,theCi
rc ui
t
D
escription p
resentsαm
ore
detaileddiscussion o
f the
majorcirc ui
ts
.Bothl
eve
lsare
illu
stratedbybloc
k
d
i
agrams
and
s
implifiedschematics
inthissectio
nandth
e
sc
hem
at
icdiagramsinSection7
.
3-3.FUN
CTIO
NA
LDESCRIP
TIO
N
3-4
.Th
emajorci
rc uitso fth
e
8050Αareshowninthe
fun
ctionalblock
diagraminFigu
re
3-1
.The ra
n
geand
functionswitches ro
u tetheunknown
inpu
t signa
l
thro
ughthesignalcondi
t ion
ers.Th
e signalconditioners
devel
opαdovoltageattheinputtoth
e α/dcon
verterth
at
i
sproportio
naltoth e
unknown
inputsignal.Theα/d
con
verter,
wor
kin
g
inconjunctionwi t
hth
e
mi
croco
mpu
ter,con
vertsthedoanalogue
o fthe
unknown
inpu
t signal
to αdigitalvalue.Themicroco
mpu
ter
p
rocessesthedigitalvaluean
d d
i s
pl aysth
e res ultonth
e
L
CD.
3-5.CIRCUITDESCRIPTION 3-6.The followin
g p
aragraphs
describe
eac
h o
fth
e
majorcirc ui
tsin
detail.
3-7.Α/DCo
n
verte
r
3-8
.
Theα/d converterinthe8050
Αusesthedual
s
lope
m
et
hod
of
con
version.Inthismethod,thevoltage
analogu
e o ftheinputsignal(propor
t i
onaltoth
e
unknown
inputsignal
)isall
owed
to chargeαcapacitor
(integrate) foran
exactlengt
h o
ftime.Thecapacitoris
the
ndisc
h
arged
byαrefere
ncevoltage.Th
elengthoftim
e
re
qui
redforth
e capacitor to disc
h
argeis
pr
op
ort
i
onalto
the
unknown
inpu
tsigna
l .Themi
croco
mpu
termeasures
t
h
e disc h
argetimeand d
i splaystheresult
.
Th
e
f
ollowing
Sectio
n
3
T
h
eory
of
Operation
p
aragraphsdi
scussth e
actual
α/dco
n versionin
m
ore
deta
il
.
3-9
.Themi
croco
mpu
tercon
trols
t
heα
/d converter via
CMOSswitches.
Fi g ure3-2showsthes
impl
ified
circ
ui
ts
formeddurin
g
t
hemajorperi
ods
o f α
/d conversion
cycles.Figure
3-3isαtimin
g diagra
m
t
hatshowsth
e α/d
convertercycle res ultingfromth
reediff
erent
inpu
t
signals.Assumeinreadingth
e f
ollowingp
aragraphsth
at
t
h
eDCVfuncti
onandth
e2Vrangeare
selected,andth
e
DMMisneari ngthe endoftheAuto z
ero
p er
i
odini
ts
conversion
cycle
.
3-10.As
Part
Α
i
n
Fi
gure
3-2
s
h
ows,th
e
CMOS
switchesU18
BandU
19A
arecl
osed,providing voltage
l
e v els
that
allowC8and
C33
to
storeth
eoff
set
voltagesof
t
hebuffer,
in
tegrator, andcomparator.CMOSswi
tches
U
18D
a
nd
U
19B
conn
ectthe
flyingcapaci
tor,
C7,toα
re ferencevol
tage.S
in cetheVfunctionissel
ected,
C7is
chargedbythe α/dconv
erter re ferencevol
tagesou
rce.At
the
e n
d o
ftheAutozero
p eriod,
C7is
fullycharged,
C8
and
C33
arech
argedupto
t
heo
ff
setvol
tages,
andth e
comparatorout
put(C
M
) isn
ear
αth
reshol
dlevel.
3-11
.Ass
um
e
thataninputo f -1
.0000Vdois
p resent
at
t
h e
DMMinpu
t (first
setof
waveforms
in
Figure 3-3).Th
e
mi
croco
mpu
ter
startsth eIntegrate
command(ΙΝΤ)at
thesame
t
imethat
i t
endsth
e
AZcommand.T
he α/d
converter
circ ui
tisswitchedtotheconfigu
rat
ionsh
ownin
Figure
3-2,PartΒ.CM
OSswitchU18Aconn
ectsth
e
outputofthe
signalco
nd
i t
i
on
ers tothe
inputtermi
nal
o
f
t
heb
uff
er
.Forth
e 2Vrange,themi
croco
mpu
tersel
ects
t
heΧ1gai
ninthebuffer,andthei
nputf
ro
mthesignal
condi
t ioneris
app
liedtothebuffer andin
tegrator
in
series
.
Th
e in
tegrator
beg
in
s
to chargeC9.The in
stant
that
the chargeonC9shif
ts
f
ro
mits
ini
t ial l
evel,th
e
comparator
toggles,anditsComp
areoutput
(CM)
goes
toαstead
ylevel.
Since
t
heunknown
i
nputtotheDMMis
Page 35
T
HEORYO
FOPER
ATION
CI
RCU
ITDE
SCRIP
TIO
N
n
egative,
the
b
uff
ergoes
negative.the integratorgoes
pos
i t i
ve,andCMwillgonegative.C9
w
illcon
t
inu
e
to
c h
argeunt
ilth e e ndo
fth
e
100mi
lli
second
In tegrate
period.Themicroco
mputer-co n
trolled
In
teg
r
ateperiod
is
exactlyth
esamelen
gt hforevery
m
easure
m
ent
cycle,
regardlessof therangeand
fun
ctionselected
.
3-12.A
f
terthemi
croco
m
p
u
ter e ndst
h e In
tegrate
p eriod,it
prevents t
h e
in
tegratecapaci
tor,
C9,fro
m
c
h
arging
ordisch
arging
duringαbri
e fHold
period.
Durin
g
t
h eHoldp
eriodthemi
croco
mputerexa
minesthe
polarityofCMtodeter
min
e
thepolari
ty
of
the
unknown
inputtotheD
MM
.
3-13
.S
in ceCMisnegat
i
ve,themi
croco
mpu
ter
ini
tiates
theReadperiodwi
t
h
t
h
e
DE
(-1-R)
(de-i
n tegrate
plu
s
reference)command
(
P
artCo fFigure
3-2),CM
OS
switchU
18
Bconn
ectsth
e b
uff er
inpu
t
toCOMMON
,
a
ndCM
OSswitchesU20A
a
nd
U20BconnectC7inth
e
bu
ff erfeedbackloop
sothatthein
tegrator
inputisα
knownleve
l (1
V
)oftheoppositep
olar
i
ty
f
ro
mthei
npu
t
signa
l.The in teg rate
capacitor,
C9,
beg
insto
d
i
scharge,
andthemi
croco
mpu
ter
starts
to
countfrom00000
.Th
e
count
acc
umul
ates
un
t
ilC9disc h
argestoitsinitial l
evel.
Th
e insta ntC9
reac
h
esits
initialleve
l , thecomp
arator
togglesCM
p
ositive,
stop
pingthecountinth
e
mi
croco
mpu
ter.Thecoun
t i
nthiscase
w
ill
be
10,000
.
Thi
s
count(wi t
htheap
propriate
decimalpoint)is
num
erically
the same asth
e-1.0000Vdo
inputtotheDMM
.
3-14
.Th
e third
set o f
wave
formsshowsthet
imingthat
would
res
ul
tfromα positivefull
-scale
input(inour
exa
mple,+1
.9999Vdc).N
oteth
atforpositive
inpu
ts,
CMi
spositivesothe
microcomputer
u
sestheDE
(-R)
(de- in
tegrate
minusre f
erence)
command du
r ingthe
R
EADperiod.Thisconn
ectsC7so
that
itsp
olar
i tyi
s
reversed
(asitmustbeto
d
isch
arge
C9)
.
3-15
.Thebottomsetofwavefor
msinFigu
re
3-3
s
hows
thetimingthat res ultsf
ro
mαpositiveoverra
ngein
put
to
the
DMM
.
Ifthecount
in
t
h
e
microcomputer
reaches
20,000 be
foreCM
toggles,themi
croco
mpu
ter detectsthi
s
asanoverrange co
nd
i t
i
onandiss
uesthe
overload (OL)
command for5milli
seco
n
d.TheULsigna
lsh
orts
C9,
du
mpingtheremainin
gch
arge.Th
efollowingAu
to z
ero
peri
odis
doubledto200
milli
second.Th
e polarityo
fth
e
overrange inpu
t s i
gna
lis
reta inedand displ
ayed
.
3- 2
ΝΟΤΕ
T
h
edisplay
i
ndi
cates
an
overload,
betwee
n
20,000
and20,055
counts,
but
theα/
d
convertercont
inu
es
tointegrate
n
or
mall
y,
andOT
indicator
d
oesnot
appear
.
3-16
.Th
e
α/dreference schemeisdiff
erent ifeitherthe
kΩor
S
functions
aresel
ected
.Wh
e
nth
e 2
mS,
200Ω,or2
kΩrange
is
selected,flyingcapacitorC7ischarged
during
t
h
e
Autozero per
i
od bythe
voltage
dro
p across
the
ref
e
r ence r
esistor
instead
o
f t
h
e
a/
d
converter r
e
fe
r
ence
voltagesource
.
InkΩ,duringthe In teg rate
peri
od,th e
voltage
drop
acrossth
e
unknown
resista
n ce
isin
teg r
ated
.
D
uringtheRead period,
t
h ebuff erinput
iscon
n
ected
to
CO
MM
O
N,and
C7isconn
ectedint
h efeedbackloop
o
f
t
hebuffer.Therefore,th
e
count
acc
umul
atedinthe
micr
oco
mpu
terd
uringtheR
ead
p eriod
i
spr
oportio n
a
l
to
therat
i
o
:
V
Rx_ UNKNOWN
V
VnR
ε F
_
R
EFEREN
C
E
V
or
the ratioofvol
tage
dro
p
s
acrosstheunknown
an d
referen
ce
r
esistors.If
anyof the
other rangesissel
ected,
flying
capacitorC7isch
arged
fromthehigh
s i
de
(
V
H)of
the
re fere n ce
resistor.Durin
g
t
h eIntegrate
p eriod,th e
voltage
drop
acrossth
e
unknown
res
i
stance
i s
in
tegrated
.
Durin
g
theReadperiod,
t
h elow
e n
d o
f thereference
resistor
(VL)isconnected
to
thebuff er
inputa n
d C7is
co
nn
ectedint
h e b uff erfeedbackloop
.
Thecoun
t is
aga
in
p
roportio
n altoth e
ratio
:
V
Rx
_UNKN
OWN
V
V
κ
-
V
ι
-REFEREN
CE
V
orth
e
ratioofvol
tage
drops
acrosstheunknown
a
n
d
re
f
erence
resistors
.
3-17
.
For
condu
cta
ncemeasureme
n
ts,
the
mi
croco
mpu
ter
se ndsthe
DE
(-R) comma nd'afterth
e
A
u
tozeroperiod,
andth
e ntheΙΝΤcomm
and.T
hi s
inver ts themeasurements
(S=1/fl)
.
3-18.Microcomputer 3-19.Themi
croco
mpu
ter(Figure
3-4)
p er f
ormsfour
fun
ctions:con
trol,measurement,cal
c ulation,anddisplay
d
rive.The posi t ionso
fth
efrontpanelswitches
deter
min
e
h
owthemicrocomputerperforms
eachofth
ese
functions
.
Themi
croco
mpu
tercon
trolsthega
inandtimingo
fth
e
α/dcon
verter andthega
in
of
t
heacbuff
ersinaccordance
wit
hthem
easurement
functi
on andrangeselected.Th
e
mi
croco
mpu
termeasures theoutputof theα/dconverter
by
acc
umul
at ingcounts.In
anymeasureme ntfuncti
on
t
hecount
acc
umul
ates
lin
early
(count
pul
ses
e v enl
y
spaced).Thetotalcountis
numericallyth
e same asthe
unkn
own
inputtotheDMM(α1.5001Vinpu
t resultsin
an
accu
mul
atedcountof15001).Ifth
e dBfunctionis
se
l
ected,themicrocomputercal
c
ul atesthedB
readi
ng
f
ro
mthelin
ear
readingbasedonthereferenceimp
edance
(REFΖ)selected.Whe
ntheRELATIVE switchisset to
theONp
osition,themi
croco
mpu
terdri
vesthedis
playso
that
the
REL
a
nnunci
atorapp
ears,
andthe
mi
crocomputer
storesth
e
first
m
easurementvalu
e asth
e
relative
re ference.Thisrelative
re f
erenceisal
gebraically
s
u
btracted
f
ro
msu
bsequentmeas
urementsm
adeinthat
m
easurement
fun
ctio
n until the
REL
AT
IVE
switchisset
to
theOFF
p
os
i t ion.
Page 36
T
HEORYOFOPER
ATIO
N
CI
RCUITDESCRI
P
TIO
N
Figure
3-1.8050ΑFu
nctio
nalBlock
Diagra
m
3-3
λ
J
>
Ν ά
¢CLα
--1
2
Ln
CIO
-j
LLJ
ή
>
0
Δ Δ
'
ΔΟ
Ε-
z
ο
α
ι¢υ
α
z
ά~
Ζ
Ι
z
ο
Σ
Ι
υ
Ι
α
Ι
Υ
>
Ν¢
Ψ
¢
¢
Ψ
Ψ
¢
Ηυ
ι
J
Ν
Ο
ιιι
α
(
_Ό
Ζ
F-
Ν
Η
Ι
Δ
ιιί
α
ά
z
ρ
Ε
¢
=
Ι
υ
ι
ι
υ
Ν
α
Ζ ν
ω
Ψ
_Δ
υ ΖΝ
Ο
μ
Ζ
Ζ
F--ΎLL
¢
αα
3
ω
α
υ
.
Ν
Ζ
¢
D
Ζ Ζ
αυ
υ
Όά
w
CCύάF..
α
α
Ν
ΥΙΟ
ι
Ο
1-06
Ι
Page 37
T
HEORYOFOPER
ATION
CIRC
UITD
ESCRIP
TIO
N
U
188
k
Ω
/
k
Ω
,S
REFEREN
C
E
V
OLTAG
E
(INPUT
DIVIDER)
V
,mA
REFEREN
C
E
VOL
TAG
E
(1V,
VR
1)
ι
0198
kΩ/S
AZ
U
18D
AZ
A.AU
TOZ
ER
O
C9
OFFSETVO
L
TAG
ES
A
NDBIAS
F
O
R
BUFFER
A
NDINTEG
R
ATO
R
I
N
TEGRATE
I
NPU
T
FR
OM
SIGNA
L
CONDITIO
NER
S
RANG
EAND
C.R
EAD(DE(-R)]
F
O
RPOSITI
VE
UNKN
OWNINPU
TS
3-4
Fig
ure3-2.Α/DConverte
r
Page 38
M
ICROCO
MPUTER
ACC
UMU
LATED
COUNT
1
RE
AD
(D
E(-R)J
Ι
1
OL(O
VERRANGE)
R
E
AD/O
VERRANGE/AU
TOZERO
F
igure
3-3.Α/DConverte
r
W
avetorms
T
HEOR
YO
FOPER
ATIO
N
CI
R
CUIT
DESCRIPTIO
N
3-
5
Page 39
T
HE
ORY
O
FOPER
ATIO
N
SIGNA
L
CONDITIONING
STROBES,
DECIMAL
POINT,
ANNUNCIAT
ORS
,
B
CD
DATA
3-20
.Signal
Conditio
nin
g
3-21.So
m
e
8050
Α
inputsmu
stbescaled an
d/or
cond
i
t
ion
ed
be
f
orebeingprese
nted
to
t
he α/d con
verter
.
F
or
exa
mple,high vo
l
tageleve
lsmu
stbeattenuated,
and
ac
inputsmu
stbeatte
n
uated
and
con
verted
in
to
t
he
e
quival
entdo
vo
l
tagelevels
.The α/dcon
verterhas
two
ranges:±200
m
V
full
-scale
and
t2
V
full
-scale.T
he
followin
gp
aragraphs
describe
thesign
alcon
d
itionin
g
circuits
.
3-22
.VOLTAGESIGNALCONDITIONING
3-23
.AsPart
Α
of
Figu
re
3-5
s
hows,thevol
tage
sign
a
l
con
dit
i
o
n
ingi
s
acco
mp
lished
wit
h
an
inpu
t
vo
l
tage
dividernetwork.T
he d
i
visio
n
f
actor o
fth
enetworkis
deter
min
ed by
thera
ngesel
ected
: 1/100for
the20
and
200
V
ranges,1/
1000for
t
he 1000
V
do
(750Vac)
ra
nge.If
t
h
e
AC/
D
C
switc
h
i
s
inthe
ACpos
i
t
i
on,
the ou
t
putofthe
d
ivi
dernetworkw
ill
be
ro
utedthrou
g
h
t
h
e
true-rms
con
verter
to
t
he α
/dconverter
.
Ifthe
AC/DC
switchis
in
theD
Cposition,
theout
pu
t
o
f
t
he
dividernetwor
k
i
s
routed
directly
to
theα/dcon
verter.If
thekΩswitchis
3-
6
Figure
3-4
.Microcompute
rSimp
lifiedBlock
Diagra
m
se
l
ected
(ohms
or
con
ductance),
the
inpu
t
divider
resistors
areusedastherefere
nce
resistors
.
3-24
.
C
URREN
T
SIGNALCONDITIONI
N
G
3-25
.
AsPart
Β
of
Fi
gure
3-5
s
h
ows,
current
m
easu
rementsaremadeusingαselected
value current
s
hun
ttop
erfor
mthe c
u
rrent-to-voltage
conversio
n
re
qui
red
by
t
he α
/d
converter
.The range
switches
deter
min
e the
value
o
fthe cu
rrent s
hun
t,
thus
determi
nin
g
t
hesca
l
e
o
fth
e
vo
l
tage
l
eveldevelo
ped
across
t
hes
hun
t
.
Ifthe
AC/DC
switc
h
i
s
i
nth
eDCpositio
n
,
the
o
u
tput
o
fthe c
u
rrent
s
hunti
s
applied
to
the input of the
α
/
d
converter
.
Ifth
e
AC/DC
switc
h
isinthe
ACposition,
the
voltageleveldeveloped
across
t
he s
hunti
s
applied
to
t
he
inpu
t
o
f
t
he
r
m
s
co
n
verter
.
3-26
.RESI
STANCE/
CONDUCTANCE
SIG
NAL
CONDITIONING
3-27
.
Resi
stance
and
con
ductancemeas
urem
entsmade
on
t
he 2
mS,
2000,
a
n
d2kΠra
nges
useαdirectratio
tech
niqu
e.Ot
herranges
useα
s
u
btractio
nan
d
rat
i
o
tech
niqu
etoindirectly
deriveαratio
.
Page 40
T
HE
O
R
Y
O
FOPER
ATIO
N
SIGNALCONDITIONING
F
ig
ure
3-5.SignalCond
itioni
ng
3-7
U
-1
I
NPU
T
DI
VID
ER
FUN
CTIO
NAN
D
RANG
E S
W
ITCHES
200
mV,2V
DC
R8
V/
k
Ω
/S
ί Α
/D
.
=
AC
ίι
20
V,200
V
1000
ν
T
RUE
RM
S
C6
ι
CONVERTER
CO
M
Α
.VOLTAGEMEASUREMEN
TS
TOTOU
C
HAN
DHO
LDCIRCUIT
DC
R8
Α
/D
F
1
F2
R16
_
-~
AC
S'
m
A
mΑ
~
ίίι
R
17
T
RUE
RM
S
R18
CO
NVERT
ER
C6
R
ANG
E
S
W
ITCHES
U
6
U
6
CO
M
Β
.
C
URRENTMEASUREMEN
TS
;,0
.2D
OHMS
V
OLTAG
E
VΩt
REF
V
H
R
REF
~!
ί
2F
U
18C
J
--
mh
SOURCE
V
L
0.2Β
U
88
f
-
ίιί
C
7
ιίι
2
Α
_
V
R
T1,
R2
R
z
1
'
Α/DBUFFER
C7
(U7A+Q19)
Α
/D
BUFFER
(I
NTCONFIG
UR
ATION)
(DE-INT
EGRATE
CONFIGURATION)
~
U18
Α
ι
VRX
V
R
X
R
Χ
C.RE
SISTANCEMEAS
UREMEN
TS
BUFFER
OUTPUT
RE
ADI
NG
I
NT
DE-1
ΝΤ
20012,
2 k
Ω
VRX
_
V
92
REF
VRX
FIX
_V92REF
R
REF
A
LLOTHER
V
Rχ
V
R
χ
+V
RT1,R2-V
C7
V
R
X
FIX
RANGES
=
γ
R
X
+
V
R
T1,R2-(VRX
+
V
R
T1,R2
+
V
R
REF)
-VΩ
REF
R
REF
-VΩREF
Page 41
T
HEOR
Y
O
FOPER
ATIO
N
TR
UE-RM
SCONVERTER
3-28
.AsPartCo
f
Fi
gure3-5
s
hows,whenthe 2
m
S,
200Ω,
or2 kΩrangeisse
l
ected,
thevoltage
drop
across
the
unknown
resistance
ismeasured
in
r
elationtot
he
voltagedro
p ac
r
oss
the kn
ow
n
r
e
f
erenceres
i
sto
r,a
n
d
si
ncethesam
e currentisflowing
t
hr
ou
g
h both
resistors,
t
he va
lu
e oftheunknown
r
esistance
canbecomputed
u
singt
he
f
o
r
mul
a
:
V
Rx
__
R
x
-V
ΠRΣF
RREF
(Minu
s
V
RRE
F
isnecessaryforde-integratio
n d
urin
g
the
R
eadperiod
.)
3-29
.
AsPartCo
f
Figu
re
3-5
s
hows,when
any
ra
n
gebut
2mS,
200Ω,or
2
k
Ωisselected,
the
voltage
dropacross
t
he
unknown
resistance
ismeasured,andC7chargesupto
the
ohms
voltage source,
V
H.Durin
g
the
R
ead
period,
t
h
eα/d b
uff
er
s
u
btracts
thevoltageonC7
f
ro
m
V
L,
thereby
obta
inin
g-VηRεF
.
3-30
.For
co
nd
u
cta
nce
m
eas
ure
m
en
ts,
t
he
mi
croco
mpu
terinverts
thek
Ω
m
easureme
n
ts
(S=1/Π)by
reversing
t
he order oftheIntegrateand
R
ead
periods
o
f
t
he α /d conv
erter.
3-31
.Tr
ue-RMSCon
verte
r
3-32.Thetrue-rms
con
verter
ismade
up
oftwo
ac
b
uff
ersand
αhybrid
true-rms
con
verter
.
3-33
.AC
BUFFER
S
3-34
.T
he acbuffer
s
consist
o
f o
p
erat
i
onalamplifiers
U
23,
U
21,and
t
he
i
rassociated compo
nen
ts
.Throug
hth
e
b
uff
ers,
theinput
signa
l i
s
scaledtoα
levelwit
hinth
e
ra
ngeofth
ehybrid
true-rms
co
n
verter
.
E
ach
b
uff
erhas
α
ga
inof
1
or 10
w
hi
chis
co
n
trolledbyt
hemi
croco
mpu
ter
.
R
e
f
er to
Tab
l
e
3-1
f
or
theb
uff
er
gains
selectedfor each
range.Int
he dBfunctionwiththe
200
m
V
rangeselected,
theb
uff
ersauto-range
throughΧ
1,Χ10,
andΧ100
gains
dependingont
he
inpu
t sign
a
l
l
evel.Thus
inthi
s
m
ode,
the
8050
Α
a
pp
ears
tohave
α
s
in
gleran
gefrom-60
dBmto-F
8
dBm(600
ΩReference
imp
edance)
.Upra
ng
in
g
occurs
at
t
he
lin
ear
ac range equiv
alentof20,000
counts
;
downranging
occursat
the
e
quival
ent
of1,800
counts.
3-35
.
Th
e
output
o
f t
h
e
first
bufferisdivided
inhalf
an
d
t
henamplifi
edby
αfactor
oftwo
inth
e hy
brid
true-rms
con
verter
.
T
h
is
reduces
the
re
qui
red
dy
nami
c
ra
n
ge
o
fthe
true-rms
conv
erter
amplifierbyαfactor
oftwo,
thereby
accommodating
waveforms
withcrestfactorsupto3at
full
scale
.
`~-
3-36
.HYBRID
T
RUE-RM
S
CO
NVERTER
3-37.An
rms
amplitudeisthevalue
ofalternating
voltage
that
results
inthe sa
m
e
power
dissipationina
given
resistance asαdo voltage
o
f t
h
e
same
num
er
ical
3-
8
value.Themathematica
l
f
or
mul
afor
co
mputin
g
the
r
m
s
value
ofα do
vo
l
tageis:
Vrms
=V=V
=
whereViisthe
instanta
n
eous
voltageatany
give
n
point i
n
time
and
V
i
eist
h
e average ofViz.T
herm
s
con
verter
i
n
yo
ur
8050
Αmo
ni
tors theinstanta
neo
u
s
voltageand
computes
t
he r
msv
alue
o
fth
e
input
s
igna
l.Fi
g
u
re
3-6
shows
the
mathematical
derivat
i
on
o
fthe imp
lici
t
r
m
s
convers
ion c
ircuitin
your
8050
Αand
α bloc
kdi
agra
m
of
t
h
at
circ
ui
t
.
3-38
.To
uch-Hold
Circ
u
it
3-39
.
Theto
uc
h-hol
d
circuit
operatesincon
junctio
n
wit
hthe
80T-Η
To
uch-Hol
d Probe.Thetouch
-
hol
d
circuitworksinallmeasurement
functi
onsexceptmA
an
ddB.
If
a
nyvali
d
function
i
s
selected,and
t
he control
switchon
the
80T
-
Η
P
robeispressed,
t
h
e
to
u
ch-hold
c
ircuitpl
aces
α logic z
ero
(-5V)ont
h
eΤ&
Η
in
put
(pin
16)
o
fthe mi
croco
mputer
.
At
t
hi
s sig
nal
,
the
microcomputerfreezes
thedisplay
wit
hthe data presen
t
w
hentheco
n
trolswitchwaspressed.To
uch-Hol
d
w
ill
n
ot
operate
if
Fu
seF1
and/orF2isblown.
3-40
.
V
oltage
Pr
otectio
n
3-41
.In
the
volts
m
ode
ofoperation
,protect
i
onagainst
inpu
ts
and
transientsabove
the
inpu
t
ratings
o
f t
he
8050
Α
isprovided
bymetaloxide
varistorsRV
1,RV2,an
dRV
3,
andbyR1,
R
2,andQ1.
RV
I,
R
V2,an
dRV
3
cla
mpthe
vo
l
tage
across
t
he
m
eas
ure
m
entcircuitr
y at
approximatelyt1200
V
w
hil
e
R
1
andR2
limi
t t
he
inpu
t
curre
n
t
.
3-42.In
t
he k
Πmode
o
fop
eration,protectio
n
i
s
prov
i
ded
by
thermistor
RT
1
and
theclamp/
aener
actio
n
o
f
Q2
.
As
RT
1heats
up,
its
resistanceincreases
shar
pl
y
.
3-43
.
CurrentProtectio
n
3-44
.In
t
h
ecurre
n
t
m
ode
o
f
op
eration,
d
i
ode
bridge
U28
andd
i
ode
CR1
cla
mpthevol
tage
across
t
he cu
rrent
s
hun
tsunt
ilthe
fu
sesF1
andF2blow
.
Backup
fu
seF2is
u
sed
to
clear
open
voltages
between250
Vand
600V.
Table
3-1.AC
Bu
fferGai
ns
RANGE
FI
R
ST
BUFFER
S
ECON
D
BUFFER
O
VERALL
GAI
N
200
m
V
,
Auto-rangeonly
X1,
X10,
X100
dB
only
200mV,
Χ
1
Χ
10
Χ
10
L
inea
r
2V
Χ
1
Χ
1
Χ
1
20
V
Χ
1
Χ
10
Χ
10
200
V
Χ
1
Χ
1
Χ
1
750
V
Χ
1
Χ
1
Χ
1
Page 42
AC
SIGNA
L
(±Vi )
GI
VEN
:Vrm
s=
-,/7\/-2
Wher
e
V
iistheinstanta
neousac
voltage
.
THEN
:
V
rms 2
=
V
i2
Ί
ACBUFFER
AMPS
Ι
Ι
ι
L
Vrms=V= antilog (log71
2)
=
antilog(2log
V
i
-
log
V
rms)
Vr
ms
V
ι
ms
FR
OMMICR
OCOMPUTER
GAI
N
Ι
CONTRO
L
(
Ι
Χ1,Χ
10,Χ100
Ι
A
BSOLUTE
VALUE
CIRCU
IT
F
igure 3-β.RMSConverter
TOΑ/D
CONVERTER
Vrm
s
ΑΝΤΙ
L
OG
CO
NVERTER
t2
logVi-log
Vrm
s
2
ΧLOG
12
logVi_&
λ
-_
logVrms
CO
NVERTER
T
HEOR
YOFOPER
ATIO
N
T
RUE-RMSCO
NVER
T
ER
L
OG
CO
NVERTER
ACX1 ACX100
_
3-9/3-10
Page 43
static
awarEnEss
ΑMessage
From
J
ohnFluke
M
fg
.
Co
.,
Inc
.
Φ
D
Φ
TheStaticSen
sitive(S.S
.)devices
areiden
tifie
dinthe Fluke
technicalmanualparts
list
wit
hthe symbol
1
.MINIMIZEHAN
DLI
N
G
2.KEEP
P
A
R
TS
INOR
IGINALCONTAI
NER
S
UNTILREADY
F
ORUSE
.
Some
semico
ndu
ctors
andcu
stomIC's
canbe
d
amage
d
by
elect
r
ostatic
discharge
during
h
a
ndling
.
Thisnotice
ex
p
lainshow
you
ca
n
minim
izeth
e chan
ces
of
d
estroying suchdevices
b
y
:
1
.Kn
owing
thatthereisα
pr
oblem
.
2
.
L
earningthe
guideli
nes
fo r handlingthem
.
3
.Usingthepr
oce
dur
es,and
pack
agi
ng a
nd
bench
techniquesthatare
recommended
.
The
followingpracticesshouldbefollowe
d
to
min
imizedamage
toS.S
.devices
.
3.DISCHARGE
PER
SO
NAL
STATIC
BEFOREHAND
L
I
N
G
DEVICES
4
.
H
ANDLES.S.DEV
ICES
BY
ΤΗΕBODY
P
age1of
2
Page 44
5
.USE
ANTI-STATIC
CO
N
TAI
NE
R
S
F
O
R
H
ANDLINGAND
TRANSPORT
6
.DO
NOT
S
LIDE
S.S.
DEVICES
O
VER
ANY
S
URFAC
E
7.A
V
OIDP
LASTIC,VINYLAND
STYROFOAMO
INWO
RK
AREA
"Dow
ch
ι
miμ
l
Page2of
2
453548 454025
POR
TIONS
REPRINTE
D
W
IT
H
PERM
ISSIONFRO
MTEK
T
R
ONIX,
INC
.
AND
G
ENER
AL DY
NAM
ICS,
ΡΟΜΟΝΑ
DIV.
8
.
HA
N
DLES.S.
DEVICES
ONLY
AT
A
STATIC-
FREE
W
ORKSTATIO
N
9.O
NL
Y
ANTI-STATIC
TYPE
SOLDER-
SUC
KER
S S
H
OULDBEUSED
.
10.O
NL
Y
GROUNDED
TIP
SOLDERI
N
G
I
RON
S
SHOULD BE
U
S
E
D
.
A
n
ti-staticbags,
for
storing
S.S.
d
evices
or
p
cbs
wit
hth
esedevicesonthem,
canbe
ordered
f
ro
mth
e
J
ohn
Fl
u
ke
M
fg.Co.,Inc..
See
section5
inanyFluke
technicalmanual
forordering
instructions
.Use
the
followingpart
numbers
wh
en ordering
these
special
b
ags
.
J
ohnFluke
P
artΝο.
Bag
Size
453522
6"
χ 8"
453530
8"χ12"
16"
χ
24"
12"
χ 15"
J
0089A-
07U7906L
it
ho
in
U
.S
.A
.
Page 45
4-1
. I
N
T
RODU
CTIO
N
T
HE
S
ESERV
ICINGINSTRUCTIO
NSAREF
ORU
S
E
BY
Q
U
ALIFI
EDPER
SONNELONLY.TO
AVOIDELECTR
ICA
L SHOCK,
DO
NOT
PERFORM
ANY
S
ERV
ICI
NG
OT
HER
THANTHAT
CONTAINEDINΤΗΕOPER
ATINGINSTRUCTIONS
UNLE
SS
YO
UAREQUALIFIE
DTODOSO
.
4-2
.
Thi
s
sectio
nof
t
h
e
m
anua
lcon
tainsmaintenance
information
f
or
the
8050
Α
.
Thisin
cludes
access
p
rocedures,
disassemblyand
replacementproced
u
res,
p
erfor
m
ance
tests,
calibrationadjustments,and
troubleshootingp
rocedures.Thep
erformance
tests
are
recommendedasan
accep
tance
test
when
t
he
in
strument
isfi
rst
rece
i
ved
.Thep
erformancetests
can
also be
u
sed
as
p
art
ofα
rou
tinep
re
venti
vemainte
nan
ce
sc
hed
ul
e
.
4-3.Α
on
e-year
calibratio
ncycl
eis recommended
to
m
ainta
in
s
pecifi
catio
n
s
give
n
in
Section1
o
fthi
smanua
l
.
Th
e
test
e
quipm
ent
re
qui
redfo
rthe
p
erforma
nce
tests
or
calibratio
n
ad
justmen
ts
isli
sted
in
Tabl
e
4-1
.Test
e
quipmen
t
wit
hequival
en
tspec
ifi
cationsmaybe
substit
uted
f
or
t
h
e
recom
m
ended
m
odel.
4-4
.SERVICEINFORM
ATIO
N
4-5
.The
8050Αi
s
warrantedforαper
i
od
ofoneyear
upon
s
hipmen
ttot
heori
gina
l
pu
rc
h
aser.Conditions
o
f
t
h
e
warra
nty aregiven
at
t
h
e
f
ront
o
fthi
smanua
l .
M
a
lfunction
s
that
occurwit
hinthe
limi
tatio
n o
f
t
he
warranty
willbecorrectedatno
cost to
t
hepurch
aser
.For
in-warranty
repair,
call (toll-free)
800-426-0361for
t
he
address
o
fthe
n
earest
FlukeT
ec
hnical
Serv
i
ce
Center.In
Alas
ka,H
awaii,Was
hin
gton,orCanada
ca
ll
206-356-
5400
(toll-call).S
hipthe
in
strumentp
ost
pa
idinthe
origina
l
container
.
If
t
h
e originalcontainerisnot
W
ARNING
Section
4
M
aintenance
available,pack
t
hein
strumen
tinα
sturdy
cartonwithat
l
east
threeinchesofnon-settlingpaddingonall
sides
.
D
ated p
roof-of-purc
hase
m
ay
be
re
qui
redfor
i
n-
warranty repairs
.
4-6
.
Fluke
Technica
l
Service
Centers
are
a
l
so
ava
i
lable
f
or ca
li
bratio
nan
d/or
re
pa
i
r
o
f in
struments
that
are
beyo
n
d
t
he
warranty
p
eriod.Call
t
he
num
berlisted
above
f
or s
hippingin
struction
s
.
S
hipthe
in
strumentand
remitta
nce
in
accorda
n
ce
wit
hthe
in
struct
ions
received
.
4-7.G
ENERALINFORM
ATIO
N
4-9
.I
n
terior
Access
4-10
.
Thein
strumenthas
two
pcbassemblies
: t
he
M
a
in
PCB
Assemblyand
t
he Disp
layPCBassembly.To
ga
in
access
to
the
calibrationad
justments,
thebac
kup
fu
se,
or
t
heaclin
e
tra
ns
form
er,
only
t
h
e
caseneedstobe
removed
.
Some trou
bles
h
ooting
can
also
be
acco
mpli
shedwit
h
o
nly
t
hecaserem
oved.Other
tro
ub
leshoot
in
gp
roced
u
res
m
ay
re
qui
re
theremova
lof t
heDisplayPCB
assembly
.
CAUTIO
N
To
avoidcontamin
atingthe pcbassemblies
withoilfromthefin
gers,handlet
he
assembliesbytheed
ges
orweargloves.If
an
assem
blyd
oes
becomecon
tami
nated,
referto
theinformationon
cleani
ngpcb'sgive
n
later
Inthissection.
Page 46
4-11
.CALIBRATIONACCESS
4-12
.
U
seth
efollowing p
roceduretogainaccess
toth
e
calibrationadjustmentsorthebac
kup
fuse
(F2)
:
42
M
AINT
ENAN
C
E
ACCESSPROCED
URES
1
.Setth
e
P
OWER
switchto
O
FF
.
2
.
R
emoveth
e p
owercor
dfromthe
rearofth
e
i
n
strument
.
3
.
R
emovethescrew
locateddi
rectlybelowthe
p
ower
receptacle
.
4
.Graspthefrontpa
n
e
landsli
de
theinstrument
o
utofthecase
.
5
.Th
e
bac
kup
fuse
and
calibrationadjustments
are
now
accessible
ontheun
dersideofth
e
instrument
(asvi
ewedfromth
efrontpanel)
.
ΝΟΤΕ
With the
power
cordreplace
d
thein
str
umen
t
is
operat
i
o
n
alfor
troubleshooting
.
W
ARNI
NG
DANGER
OUSVOL
TAG
ESEXIST
ON
ΤΗΕ
P
CB
ASS
EMBLIES
WHEN
ENER
GIZED.
E
XERCISEEXTREME
CA
RE
WHEN
WORK
ING
ON
ANENER
GIZ
E
DCIRCUIT
.
Table
4-1
.RequiredTest
Equipment
6
.To
reassemb
l
e,
reversethe previou
spr
ocedures
i
nα
logicalorder
.
4-13
.DISPLAYPCBACCESS
414
.
U
seth
e
f
ollowing p
rocedure to
accesstheDisplay
P
CBfor
t rou
bleshooting
:
1
.Co
mpl
etetheCalibrationAccessprocedure
.
2
.
R
efertoFigure41.Tur
nthein
strument
over
andrem
ovetheindicated screws
.
3
.
Th
eLCD,POWER
switch,
and
RELATIVE
switcharemoun
ted
ontheDispl
ayPC
B
Assembly.Ge
ntlypushonth
eLCDan
d
P
OWERswi
tch,slidingtheasse
m
bly
towards
the
rearof th
e
in
strument
untilth
eLC
D
and
theswitchesclearth
efrontpane
l
and
theright-
h
andsi
de
pcb
edgeslot.
4
.Flip
t
h
eDis
p
lay
P
C
B
overont
herigh
t sideo
f
thein
strument
.
The
DisplayPCBis
conn
ectedtothe
mai
npcb byαflexibleribboncable(Interconnect).This cableremains
attac
hedfor
service
operation.
AvoidstrainingtheInter
conn
ectcablewhile
workingonthe
Instrument
.
CAUTIO
N
I
N
ST
RUMEN
T
TYPE
RE
QUIREDCHARACT
ER
ISTICS
RECOMMENDE
DMOD
EL
D
MM
Calibrator
DCVoltage0to
1000V±
.006%
J
o
hn
Fluk
e M
o
del
51008
AC
V
oltage
100Hz0to750V±.06% 200
Hz
0
to
2V±
.06%
1kHz
0
to
750V±
.06%
ο
10kHz
0
to
100V±
.06%
20kHz0to100V±
.1%
50kHz
0to20V±5%
DCCurrent0to2000mA±.035% ACCu
rrent19mA,100Ητ±
.1%
R
esistance
100Ω,1kΩ+.011%
10kΩ,100kΩ±.005% 1ΜΩ,
10
ΜΩ±.05%
DigitalMulti-Meter(DMM
)
.1mVr
esol
u
tio
n John Fluke
M
odel8020
Β
CalibrationLeads
24"Sh
ieldedcablewithαdouble
P
omona2B
C-24
banana plug
atbot
h end
s
Page 47
5.To
r
eassemble,
reverse
thep
r
eceding
proceduresinlogicalorder
.
4-15
.DIS
PL
AY
P
C
B
REM
OVA
L
4-16.Use
thefollowingprocedure to remove
t
he
DisplayPC
B
from
t
he
in
strument
:
LCDREMOVA
L
F
igure41.
DisplayPCBAccess
I
nterco
nn
ect
cable.
M
AINTEN
A
NCE
ACCESSPROCED
URE
S
contact
strips
on
the underside
o
f
t
he
4.To
reassemb
l
e,
reverse
thep
recedi
ng
procedures
in
l
og
ical
o
r
der
.
U
se
t
he
f
o
llowin
g
p rocedu
re to
re
m
ove
t
he L
C
D
d
Crysta
l
Di
splay)fro
mtheDisplay
PCB
b
l
y
.
Complete
the DisplayPCBAccess p
rocedure
.
Rem
ove
thetwo
screwslocated
on
t
he
f
o
il
s
i
de
o
ftheDis
playPCB
Assemb
ly
.
F" 11
ι
0
rilraTilinji
Ι
0
0000
000
00
0
e)
oj'~3-00.9
-
Ilion
41
α
~
Ό6
ω
ο
0000
Toc
C2 C1
R
9
R
5 190VAC
19VAC
1000
V
DC
190
V
OC10KHZ10KHZ
DIS
PLAYP
.C.B.
RE
V
R
12 R
11
190
ΜVDC1.9VDC
0
0
σ
0
0
0 0
0
~cη9
ρ
Ο
ρ
ο ο ο
οο
ο
°
ο
F
2
4-
3
4-17
.
1.Co
mpl
ete
theDisplayPCBAccessprocedure
.
4-18
.
2
.Remove
the
screws
(two)
fromthe
pl
astic
bar
that
cla
mp
s
theInterco
nn
ect
cable
to
t
h
e
(
Liqui
Asse
m
1
.
Di
s
pl
ayPCB.
3
.
Rem
ove
t
he
pl
astic bar andgently
lif
t
t
he
In
terconnect
cablefro
mthe s
i
des.To
avoid
2
.
conta
mination
,
donot
to
to
uchth
emeta
l
οΟ
Ο
C
RR
00
0Ο
0
0
Ο
00 0
0
0
Ο
CR11
0
00
00 00
0
0
0
C
R
7
0
0
Ο
ρ
0
ρ ρ ρ
0
6
Ο
0
00
Page 48
M
AINTENA
NCE
ACC
ESSPROCE
D
URE
S
3
.
U
sing
yourfi
nge
r
nail,
pry
t
he grey
tabsont
he
L
CD
bezelfree
f
ro
mth
e
screwposts
and
remove
.
4
.Toreassemb
le,reverse
the
above
procedu
res
in
α
logica
l
order
.
4-19
.
B
AC
KUP
FUSEREPL
ACEMEN
T
4-20
.
U
se
t
he
followin
g
pr
oceduretoreplace
t
he
backup
fu
se
(F2)
:
1
.Co
mpl
ete
theCalibrationAccessprocedure
.
2
.
U
singαwide
flat-b
l
ade
screwdr
i
ver,
pry
t
he
fu
se
outfro
m
t
h
efuseholder.(Refer
to
Fi
g
u
re
4-1for
t
h
e
location
o
fF2.)
3
.
R
eplace
thedefectivefuseα3Α,
600
V
fu
se
(mfg
.
p
artno.
BBS-3)
.
4-21
.ACLINEVOL
TAG
ES
ELE
CTIO
N
4-22
.The 8050Αis
configured
at
t
he
f
actory
f
or
α
s
pecif
icacline vo
l
tage.The
configured
ac
lin
e
voltage
is
listedonα
deca
l
l
ocatedont
he botto
mofthe
uni
t
.
Lin
e
v
oltage ch
anges
require
theorderi
n
g
ofαnew
tra
ns
form
er
f
or
t
he instrument
.Refer
to
t
he
M
a
in
PCB
Asse
mbl
y
p
arts
list
in
Sectio
n5
f
or
t
hep
art
num
ber o
fth
e
re
qui
red
transformer.
ΝΟΤΕ
In
struments
withOption805ΟΑ-01
R
echargea
b
leBatteryuse
σdiffe
r ent
proce
durefor
c h
angingtheac
lin
evol
tage
.
R
efe r to
Sectio
n 6
forthisproce
dure.
Table
4-2.dBImped
a
nceSelectio
n
DiodeTyp
e
:UseFluke
P/N
203323
O
N4448,
1N914or
equ
ivalent)
4-4
4-23
.Use
t
he
foll
ow
ingp
rocedure to
change
t
h
e
ac
line
voltage
configuratio
n
on
t
h
e
8050Α:
1
.
Co
mpl
ete
t
h
e
Calibratio
n Access p
r
ocedure
.
2
.
R
emove
the
trans
form
er
andreplaceitonefor
t
he intended
line
voltage
.
3
.
Re
l
ocate
the
w
hi
te
wire
(fro
mth
e p
ower
receptacle) to
t
he
p
cbhole
labeled
wit
hth
e
correct
voltage
.
4
.
R
emove
thecase
and
relabe
l t
he ac
lin
e
voltage
designationont
he
decalat
the botto
mofthe
in
strument
.
4-24
.dB
R
eference
ImpedancePower-Up
Setti
ng
4-25
.
Thefollowingprocedu
re
sets
thedefa
ul
t
(atpower
up)
dBreference
impedancetoan
yoneo
fth
e16availab
l
e
imp
edances.In
thestandardconfiguratio
n (nodi
odes
in
stalled),
t
he de
f
ault
refere
n
ce
impedanceis600fl
.
1
.
Co
mpl
ete
theDisplayPCBAccess
p
rocedure.
2
.
L
ocate
t
he d
i
odemounting
pos
itions
on
t
he
D
is
pl
ay P
CBAssembly (
justtotheright
o
fth
e
calibration
accessholes,
viewedfro
mthe
f
ron
t
o
f
t
he
instrument)
.
3
.
R
efer to
Table 4-2
andinsta
lldi
odesassh
ow
n
f
or
thedesired
reference
imp
eda
nce
.
4
.
R
eassemble
theinstrument
.
REFERENCEIMPEDANCE CR8
CR9
CR10
CR
11
50
-
R
-
-
75
-
-44-
.
44-
_
.
44-
93
-Ν
-
-
-
-
110
-.Ν
-
-
-
125
--14-
-
_Ι.
.
-
135
-4+-
-
-4*-
_14-
150
-14-
-Ν--
- -
250
-.Ν
.-
- -
-{
f-
300
--Ν-
-
-Ν--
-
500
_}{-
--μ--
_
44-
--
Ν
--
600
-
-
- -
800
-
-
-
--
Ν-
900
- -
--~--
-
1000
-
-
-
.-
--4--
1200
-
_
+-
-
-
8000
-
.-4_
-
Page 49
4-26
.
Cleaning
4-32
.Display
Test
CAUTIO
N
Do
not
u
se
aromatichyd
rocarbo
n
s
o
r
c
hlorin
atedsolvents
for
cleaning.These
solutionswillreact
wit
hthe
p
lasticmaterials
usedInthe
Instrument
.
CA
U
TIO
N
Donot
allow
theLCDtocome
In
con
tact
wit
h
moist
ure.Removeth
eLCDfromtheDisplay
P
CBAssembly
befo
recleaning
the
pcb,
and
don
ot
Install
t
h
eLCD
un
tilth
e pcbis
co
mp
letely
dry
.
4-27
.Clean
t
he
f
ront
p
an
e
l
an
d
case
wit
h α
mil
d
solutio
n
o f
detergen
tand
water.Apply
the so
lutionwi
t
h
α
so
f
t
cloth.
D
o
not
apply
the
solutio
n d
i
rectlytothefront
pa
ne
l
.
C
lean du
st
and
deb
risfro
mth
e
p
cb's
wit
h
low-
pressure
(20 psi)
dry
air.Clean
contaminatesfro
mthe
pcb's
wit
h
i
soprop
ylalcohol
an
dαsoftbrush.
Rin
se
wit
h
de
min
eralized
water
w
hil
e
scrub
bing
withα
soft
brush.To
dry
t
he
pcb's, re
m
ove
anyICsinsoc
k
ets
and
u
se
low-
pressure
dry air,
t
he
nbak
eat50to60°C
(124to140°F)
f
or
24hours.
Rep
l
ace
any componen
ts removedfor
clea
nin
g
and
reassemb
l
e
t
he
in
strume
n
t
.
4-28
.
PERFORM
ANC
ETE
STS
4-29
.Theperformancetests
areusedtocompare
t
he
8050
Αperforma
ncewiththe
li
st
o
f
specifications
g
iven
in
Sect
ion
1
.We
recommen
ded
that
yo
urunthe
p
erformance
testsfor
incominginspectio
n an
d
per
iodi
c
calibration
.
Ifthein
strumen
t
f
a
il
s
a
nyo
f
t
h
ep
erformance
tests,
then calibrationad
justmentand/or
repair
is
n
eeded
.
4-30
.InitialProce
dur
es
4-31
.
B
efore
beg
ini
ng
eac
h ofthe
tests,perfor
mthe
f
ollowing
:
1 .
R
emove
all
test
leads
.
2
.C
heckth
efusesand,
ifnecessary,
replace
.
3
.Set
t
he
P
O
W
ERswitch
to
ON,
and
allow
the
8050Αto
stab
ili
zefor
approx
imate
l
y
5
minu
tes
.
Conduct
thetestsinan
e
nvironm
entwithan
ambienttemperat
ureof
23t50C
(73t90F)
an
dα
relative
humidi
ty
o
f
l
ess
t
han
80%ο.
4-33
.
U
se
t
he
f
ollowing
procedure to verify
theproper
op
erat
ion
of
t
he
L
CD:
1 .
Select
t
he kΩfun
ctio
n,
200Ωra
nge
.
3
.
4
.
'Dueto
test
lea
dresistance,the
least
significant
d
igit(s)
mayfluctu
ateby
severalcounts.
5
.
6
.Select
the200
V
do
range
.
7
.
8
.
9
.
M
AINTEN
A
NCE
PERFORMANC
E T
E
STS
2
.Verify
that
the
overrange
indicator
(1)
is
displayed
.
Connect
the red
test
lead
to
t
heV/k
Ω
/S
inpu
t
co
nnector
and
the
b
l
acktest
lead to
the
CO
MMON
in
put
conn
ector.
R
efertoTa
ble4-3.Short
the
test
leads
toget
h
er
a
nd
verify
that
the
disp
l
ay reads
as
show
n
f
or
eac
hofth
e
resista
nce
ra
n
ges
.
Table
4-3
.
Dis
p
lay
Test
Select
t
he
D
CV
function,
press
t
he
REF
Ζ
switchto
t
heinpos
iti
on
(on)
and
ver
ifyth
at
f
o
ur decim
a
l
poin
ts
app
ear
on
thedisplay
.
Connect
the
DMM
Calibratortothe8050
Α
as
f
ollows:ΗΙ
to
t
he
V
/kΩ
/S
inpu
t
conn
ectorand
L
Otothe
CO
MMON
inpu
t
conn
ector.
Adjust
t
h
e
DMM
Calibratorunt
ilth
e
8050
Α
displays
-f-
188
.88Vdo
exactly.
V
erify
that
all
seg
m
entso
f
t
he
8050
ΑLCDare
illumin
ated
and
theHV
a
nnunci
ator
app
ears
in
t
h
e
display
.
Set
t
h
e
DMM
Calibratorfor
α
-39Vdo
output
.
V
eri
fyth
at
t
he
H
V
an
nunci
ator
disappears
an
d
t
he
p
olarity
indicator ch
angesto-
(negative)
.
Se
l
ect
t
he dBfuncti
ononthe
8050Α,
t
h
e
n
set
t
he
REL
ATIVEswitchto
ON
(in)
.
V
erify
that
t
he d
BandREL
a
nnunci
ators
are
illuminated
.
14.This
co
nc
lu
des
the Display
Test
.Remove
p
owerfro
mthe
DMM
Calibrator
before
dismantling
thetest
setup.
4-5
S
ELE
CTRANG
E DISPLAY
2002
00
.00'
2 k
Ω
.0000"
20kΩ
0
.000
200kΩ
00
.00
2000kΩ
000
.0
20
ΜΩ
0
.000
Page 50
M
AI
NTENANCE
LINE
ARVO
L
TAG
E T
E
ST
4-
6
4-34
.
L
inearV
oltage
Test
4-35
.
U
se
thefollowing
procedure
to ve
rif
y
theproper
operatio
n
of
t
he
ac
a
n
d
do
voltagemeasurement
fun
ctions
:
1
.Co
nn
ect
the
DMM
Calibratorto
the
8050A
as
f
ollows
:ΗΙto
theV
/kΩ/Sinput
conn
ector
a
nd
L
O
to
the
CO
MMON
inpu
t
connector.
2
.
For each
ste
pin
Table
4-4,
select
thesw
i
tc
h
positionsshow
n
and
ad
just
the
DMM
Calibrato
rtothere
qui
red
8050Αvoltage
inpu
t
leve
lan
dfrequen
cy,
then
verifythat
t
he
8050
Α
d
i
s
pla
y rea
din
g
is
wit
hin
limi
ts
.
3
.
Thi
s
co
nc
lu
des
t
he
Lin
earVoltage
Test
.
If
desired
proceed
d
i
rectlytot
he dBVol
tage
Test
.
Table
4-4
.Li
nearV
oltage
Test
α
-36
.
dB Voltage
Test
4-37
.
U
se
t
he
f
ollow
in
gprocedu
re to
verify
the
pro
per
o
p
eratio
n o
f t
hedB
voltagemeasu
remen
t
fun
ction:
1 .Complete
t
he
L
inearVoltageTest
.
2
.Select
theAC
d
B
functi
on,
200mV
range
.
3
.Co
n
nect
t
he
DM
M
Calibratortothe
8050Αas
f
ollows:ΗΙtotheV
/
k
Ω/S
inp
ut
connectorand
L
Otothe
CO
MMON
inpu
t
conn
ector
.
4
.
For
eachste
p
in
Table
4-5,adjust
t
he
DMM
Calibratortothe
re
qui
red
8050Αvoltage
inpu
t
leve
l
an
d
frequen
cy,
t
h
enverify
that
the
8050
Α
d
ispl
ay reading
is
wit
hinlim
its
.
UUTSW
ITC
H
UUTINP
UT
DISPLAY
STEP
P
OSITIONS
RE
ADI
NG
AC/DC
R
ANG
E
LEVEL
FREQUEN
CY
1
200mV
+190mVdc
+189
.92to+190
.08
2
-190mVdc
-189
.92το-190
.08
3 2
V
+1.9V
dc
+
1
.8992το+1.9008
DC
4
-1.9Vd
c
-1
.8992to-1
.9008
5 20
V
+19Vdc
+18
.992to+19
.008
6
200
V
+190Vd
c
+189
.92to+190
.08
7
1000
V
+1000Vdc
+999.5το
+1000
.5
8 2
V
S
hor
t
<0040
9
100
Hz
188
.95
το191
.05
1
0
200
m
V
190mV
ac
r
ms
10
kH
z
188
.95το191 .05
11
50kH
z
180
.20
το
199
.80
12
100mV
acrms
100
Hz
985το1015
13
100
H
z
1
.8895το1
.9105
2
V
1.9Vacrms
14 10
kH
z 1
.8895το1
.9105
15
Ας
50kHz
1
.8020to1
.9980
16
100
Hz 18
.895το19
.105
17
20
V
19Vac
rms
10kHz 18
.895
το 19
.105
18
50kHz
18.020
to 19
.980
19
190V
acrms
100
Hz
188
.95το191 .05
200V
20
100Vacrms
10kHz
99
.40το100
.60
21
100
Hz
745.2το
754
.8
750
V
750Vac
rm
s
22
1
kHz
745
.2το754
.8
Page 51
5.Disco
nn
ectth e
DMM
Calibratorfromthe
8050
Α
.
6
.Onth e
8050
Α,setth
ePO
W
ER
sw
itchtoOFF.
7
.
SettheREFΖswitchto
ON
(in)
.
8
.
Onthe8050Α,
setth
ePO
W
ER
sw
itch to
ON
an
d
verify
thatthedisplay
reads
600(th
e
defa
ultre ference
imp
edance)for3seconds,
t
h enseque n cesthrough
all
stored
re f
erence
values atα1-seco
nd
rate
.
Stored
ref
erence
imp
eda
n
ces are:50,
75,
93, 110,
125,
135,
150,
250,
300,
500,
600,
800, 900,
1000, 1200,and
8(000)
.
ΝΟΤΕ
I
f
thedefault
reference
impedanceof
Step
8is
n
ot
600, referto the
dB
R
efe rence
Impedan
ce
P
owerUp
Setting
procedure
andcheckif
the
d
efa
ul
t
refere
nce im
ped
ancehas
bee
n
ch
ange
d
.
9
.
Th
is
co
nclu
desthe
d
B
V
oltageTest,
remove
p
owerfro
m
th
e
DMM
Calibrator
before
dismantlingthe
test
set
up
.
4-38
.Curre
n
t
Test
4-39
.
Usethe f
ollowing p
rocedure to veri fythe prop er
operat
ion
of
t
heacanddocu
rrentmeas
u
rement
funct
ions:
1 .Select
the
DCm
A
function
.
2
.Co
nn
ecttheDMM
Calibrator tothe8050Αas
f
ollows:ΗΙtothe
mA
inputconnectorandLO
totheCO
MM
ON
inputconnector
.
3
.
Fo
r
eachstepin
Tabl
e
4-6,
selectth
e range
s
hownand
adju
st the
DMM
Calibratortothe
re
qui
red
8050
Αcu
rrent
inpu
t, thenveri fythat
t
h e
8050Αdisplay
readi
ngis
withi
nth
elimits
.
4
.Selectth e
ACVfunction,
20mA
range
.
Table
4-5
.
d
8
V
oltage
Test
5
.
Adjustthe
DMM
Ca
li
bratorforan outpu
t
19
.000mA,at
αfrequency
o fIOOHz.
6
.
V
erifyth at
t
h edisplayreads
between18
.800
a
n d19.200
.
7
.
This
con
c lu
des
theCu
rre n
tTest
.Remove
p
ower
from
the
DMM
Calibratorbef
ore
dis
m
an
t lingthe
test
setup.
Table
4-
β.Current
Test
M
AI
NTENANCE
LINEAR
V
O
L
TAG
ETE
ST
4-40
.
R
esistance
andCo
ndu
cta
n
ce
Tests
4-41
.
U
sethefollow
ingp
roceduretoverifytheproper
operatio
n
o f
t
h
e
resistance
and
conductance
m
easure
ment
functions
:
1
.Se
l
ectthekΩfun
ction,2000
.
2
.
ConnecttheDMM
Calibrator tothe8050Αas
f
ollows:ΗΙtothe
V/kΩ/Sinputconnector
and
L
Otothe
CO
MMON
inputconnector
.
3
.
F
or
eac
h
stepinTable 4-7,sel
ecttherange
show
nand
adjusttheDMM
Calibratortothe
re
qui red
8050Αresista
n
ce
inpu
t, thenveri fy
t
hatthe
8050
Α
dis playreadingiswithi
nth
e
limits
.
4
.
Thisconc lu
destheRes
i
stanceand
Co
ndu
ctanceTests.R
emove
power
f
ro
m
t
h
e
DMM
Ca
li
bratorbef
oredism
an
t
lingthe
test
setup.
4-
7
I
NPU
T
DISPLAY
RE
ADING
ST
EP
S
ELE
CT
R
ANG
E
LEVEL
FREQUEN
CY
1
Short
Circ
u
it
B
elow
-75
dB
2
10
.00
mVac
r
ms
100
H
z
-37
.28 to
-38
.28
200
mV
dB
3
10
.00mVac
r
ms
10
kH
z
-37
.28 to
-38
.28
4
1
.000OVac
rm
s
100
Hz
+02
.07to+02
.37
ST
EP
S
ELE
CT
R
ANG
E
I
NPU
T
DISPLAY
RE
ADING
1
200
μΑ
190
μΑ
189
.41to190
.59
2
2mA
1.9mA
1
.8941to1
.9059
3 20mA
19
mA
18
.941to19.059
4
200
m
A
190mA
189
.41to190
.59
5
2000
mA
1900mA
1894.1to
1905
.9
Page 52
M
AINTEN
ANC
E
LINEARVOLTAG
ETE
ST
Table
4-7
.Resista
nce and
Conducta
nce Tests
4-42.CALIBRATIO
N
AD
JUST
MEN
TS
4-43
.
Un
der
normal
operating con
d
i
t
i
ons the8050
Α
requires
calibration
once
every
year.Calibratio
n
ad
justmentsare
also
re
qui
red
after
t
he
in
strumenthas
been
repaired o
r
if
i
tfails
a
ny o
f t
he Performan
ce
Tests
.
T
est
eq
uipmen
t
re
qui
redfor
the adjustmen
ts islisted
in
Tabl
e 4-1
.Figure 4-2
s
h
ows
t
he locat
ion
o
f
all
ad
justmen
ts
f
or
thefollowing p
roced
ures
.
For
v
erification,dot
he
P
erformance
Tests
after
co
mpletin
g
the
CalibrationAd
just
m
ents.
If
port
ion
s
o
f
t
h
e
CalibrationAdj
ustments
cannotbecompl
eted,
refer to
t
he
Jump
er
Se
l
ection procedures
give
n
l
ater in
this
sectio
n
.
4-
8
ΝΟΤΕ
On
the
8050Α,
set
theP
O
W
ERswitch
1οON
a
nd
allow
theinstrument 1οstabilize
for
approximately 5
minu
tes.P
e
rfor
mth e
calibratio
n a
d
j
ustmen
tsatan
ambient
temperat
ur
e
of23f.5°C(79
t9°F).
W
A
RN
I
N
G
CALI
BRATIO
N
AD
JUST
MEN
TSARE
PERFORMEDON
E
NERGIZED
CI
RCU
ITS
.
E
XERCISECA
U
TIONATALLTIMES,A
ND
U
SEΑ
NON-CONDUCTIVE
TOO
LFORALL
AD
JU
ST
MENTS.
4-44
.DC
Calibratio
n
4-45
.Use
t
he
f
ollowing
p
rocedure
to
performαDC
Calibratio
n
:
1
.Connect
t
he
DMM
Calibratorto
the8050Αas
f
ollows:ΗΙtothe
V
/
k
Ω/S
inpu
t
connector
and
L
O
to
t
heCOMM
O
N
in
p
u
t
connector
.
2
.
Select
t
he
D
C
V
functi
ononthe
8050A
.
3
.Turnont
he
DMM
Calibrator
.
4
.
For
eachste
p
inTable
4-8,
select
t
he
r
ange
shown,
andadjust
t
h
e
DMM
Calibrato
rforthe
re
quired
8050Αvoltage
inp
ut
leve
l
,
then
ad
just
the
ind
icated
comp
onentto
t
h
e
display
li
mi
ts
.
5
.
This
concludes
the
DC
Calibr
atio
n
Ad
justment
.
Rem
ove
power
fr
o
mthe
D
MM
Calibrator
be
f
ore
dismant
lin
g
the
test
setup.
4-46
.
AC
Calibratio
n
4-47
.Use
t
he
f
ollow
in
g
procedure toperfo
rman
AC
Calibration:
1
.
Connect
the
DMM
Ca
l
ibratortothe
8050A
as
f
o
ll
ows
:
ΗΙtotheV
/
kfl
/
S
inpu
t
connector
and
L
Otot
he
CO
MMON
inpu
t
connector
.
2
.Se
l
ect
t
h
e
AC
V
function
.
3
.
F
or each
ste
p in
Tab
l
e
4-9,
select
thera
nge
shown,
andadjust
t
he
DMM
Calibratortot
he
required
8050Αvoltage inputle
ve
l
and
f
re
qu
ency,
thenad
just
t
he
indi
cated
componentto
the
displa
y
limi
ts
.
4
.T
hi
s
co
mpl
etes
t
he
AC
Calibratio
n procedu
re
.
Rem
ove p
owerfro
mthe
DMM
Calibrator
before
dismant
lin
g
thetest
setup.
4-48
.
J
u
mp
erSelectio
n
4-49
.
If
t
he ca
li
brationad
justmentsdonot bring
t
he
in
strumentwit
hin
specificationsorif
certain
critica
l
compon
ents
(VR1
orU32)
h
ave
beenre
pl
aced,
co
mpl
ete
one o
fthe
f
ollowing
j
ump
er selectio
nprocedu
res
.
Jump
er
locationsare
show
ninFigu
re
4-2
.
4-50
.
U
5
JUMPER
S
ELE
CTIO
N
4-51
.TheU5
j
ump
er selection procedures
ho
ul
d
be
per
formedifVR
1has
beenreplaced
o
r if
R
11
doesnot
h
aveαsufficientadjustmentra
nge
.Use
t
he
f
ollowing
p
roceduretoselect
t
he pro
p
er
resistance
forU5
:
1
.
U
s
in
g
t
h
e
5-pinco nn
ector(ρ/η
537514)
prov
i
ded
wit
htherepl
acemen
tpartskit,short
ΜΡ
20
j
ump
erpositionsΑ-Β-C-D.
2
.
On
t
he
8050Α,
set
t
he
P
O
W
ERswitch
toON.
3
.Ad
justR11
full
y
coun
terclockwise
.
4
.
SelectDC
V
fun
ction,2Vra
nge
.
5
.Connect
t
h
e
DMM
Ca
li
brator to
the8050Αas
f
ollows:ΗΙ
to
theV
/kΩ/S
inpu
t
connector
and
L
O
to
the
CO
MMON
input connector.
6
.Ad
just
t
he
DMM
Calibrator to+1.8888Vdc
.
.
ST
EP
S
ELE
CT
RANGE
INP
UT
DISPLAY
RE
ADI
N
G
1
200
Ω
Short
00
.00το00
.04
2
200
2
100
Ω
99
.88το100
.14
3
2kΩ
1
k
Ω
.9988το1
.0012
4
20k2
10kΩ
9
.993το10
.007
5
200kΩ
100kΩ
99
.93το100
.07
6
2000
k
2
1
Μ2
997
.2
το
1002
.8
7
20
ΜΩ
10
ΜΩ
9
.972to10
.028
8
2
mS
1k2
.9985το1
.0015
9
200nS 10Μ2
99
.30το100
.70
Page 53
MAINTENANCE
CALIBRATION
ADJUSTMENTS
Figure42.
Calibration
Adjustment
Locations
49
Page 54
M
AINTENANCE
CALIBRATIONADJUST
MEN
TS
IfR11
can not
be
a
dju
stedto
the
DIS
PL
AYLIMIT,refer
to
theU5ju
mper
selectio
n
pr
ocedures
inSectio
n 4
of
thismanual
.
7
.TurnontheDMM
Calibrator
.
8
.Compare
the
8050
Αdi
s
playtothe
LO
W
a
nd
HI
GHdi splay readingsinTable4-10
a
ndfind
theDISPLAY
READINGthatthe
8050
Α
d
i splayis
between.Cutou
t theportion o
fth
e
j
ump
er
asshownundertheJUMPER
CO
NFI
GURATIONheadi
n
gthatcorres
pon
ds
to
theDISPLAYREADING.
9
.
P
er formth
e
Calibratio
n
Adjustments
.
4-52
.
U
33
JUMPER
S
ELE
CTIO
N
4-53
.TheU33jump
er selection p
rocedureshould
be
performediftheRMSConverter
(U32)
has beenreplaced
orifR7
does
nothave
αsufficientadjust
m
ent
range.Use
the
following
procedure
to selecttheproper
resistance
for
U33
:
4-
1
0
1.Us
in gthe4-
pinconn
ecter(ρ/η
537522)
provi
dedwithth
e
replacementpartskit,short
ΜΡ
21jumper
p
ositionsΕ-F-G.
Table48.DCCali
br
ation
Table
4-9.AC
Calibratio
n
2
.
Onthe
8050Α,
setth
ePOWERswitchtoON
.
3
.AdjustR7
fullycl
ockwiseandad
j
u
stR29
the
centerof i tsrange.
4
.Selectthe
ACVfunction,
2Vrange
.
5
.
ConnecttheDMM
Calibratortothe
8050
Α
as
follows:ΗΙ
to
t
heV/kΩ
/Sinputconnectorand
L
OtotheCOMM
ONinputconnector
.
6
.Ad
j
ust
the
DMM
Calibrator
forI.0000Vac
rms,at200Ητ.
7
.Turn ontheDMM
Calibrator
.
8
.Comparethe8050
Αdisplay
toth
eDISPLAY
READINGco
lum
ns
inTable
4-11
and
fin
d
whic
h
L
O
W
a
ndHIGHvaluesth
at t
he8050
Α
display
readingis
between.Cutou
t the
portion
o f
t
h
ejump
er
as shownun
dertheJUMPER
CO
NFI
GURATIONh
eadingthat
corres
pon
ds
totheDISPL
AY
RE
A
DIN
G
.
8050
ΑVOLTAG
EINPU
T
ST
EP
RAN
GE
LEVEL
FRE
Q
ADJUST
DIS
PLAYLIM
ITS
1
2
V
1
.9000
V
200
Hz
R
7
1
.8995to1
.9005
2
2
V
100
.0
mV
200
Hz
R
29
.0999to.1001
R
7
a
nd
R
29
a
r
e
interacting a
dju
stments
.
R
epeatuntil
bot
h a
r
e withi
ntheirlim
its
.
3
2
V
S
hor
t ci
rcu
it
L
ess
than40
digits
4
20
V
19
.000
V
10
kH
z
C1
;
18
.990to19
.010
5
200
V
100
.00
V
10
kH
z
C2
*
99
.95 to
100
.05
C1
andC2
are
interacting a
djustmen
ts
.Repeatuntil
bot
h
are
withi
nth
eir
limits
.
"Use an
insulatedscrewd
riverfo
rth
ese
a
dju
stments
.
IfR7
cannotbea
dju
stedto
t
h
e
DISPLAYLIMITS,
referto
the
U
33jumper
selecte
r
pr
ocedure
inSectio
n 4
of this
ma
nu
al
.
If the
displayisnot
wit
hin
limits
i
n
step3 o
r
R
29
is
outside
a
dju
stment
rangeproce
dur
e
ran
ge,referto theRMS Con
verter
Offset
Adjustment
procedure
inSection
4 of
this
manual
.
ST
EP
RANGE
V
OLTAG
E
I
NPU
T
ADJUST
DISPLAYLIMITS
1
2
V
+1
.9000
V
R
11
+1,9000
exactly
2
200
mV
+190
.00
mV
R
12
+190
.00 exactly
3
200
V
+190
.OO
V
R
5
+190
.00 exactly
4
1000
V
d
c
+1000
.O
V
R
6
+1000.0exactly
Page 55
9
.
P
er formtheCali
bration
Adjustments
.
4-54
.
RM
S
CO
NVER
T
EROFFSE
T
ADJUST
MEN
T
PROCEDURE
4-55
.Th
e rmsconv
erteroff
set
adjustment s
ho
ul
d be
p
er formedifR29does
nothav
e αsufficient
adjustmen
t
ra
ngeori
fthe
8050
Αdi s
pl ayreadingisgreater
than.0040
in
step3 o f
Table 4-9
.Useth
efollowi
ngprocedure to set
t
h
eini
tia
loff
setoftheRMSConverter
:
1
.Onthe8050Α,
setth
ePOWERswitchtoON
.
2
.SelecttheACVfunction,
2Vrange
.
Table
4-10
.US
Jumper
P
ositions
MAINTENANCE
CALIBRATIO
NADJUSTMEN
TS
DISPLAY
(A
LL
JUMPER
PIN
S
INSTA
LLE
D)
JUMPER
CONFIGURATIO
N
ASVI
EWEDFROM
REAR
OF
8050
Α
Ι
ΙΙΙ
1
Ι
Ι
ΙΙΙ
Ι
Ι
ΙΙΙ
ι
Ι
Ι
Ι
Ι1Ι
Ι
Ι
ΙΙ
~
Ι
ι
Ι
ΙΙΙ
Ι
Ι
1
ΙΙΙ
Ι
ΙΙΙ
Ι
ΙΙΙ
Ι
Ι
1
Ι1Ι
Ι
Ι Ι Ι
Ι
Ι
Ι Ι Ι
Ι Ι
Ι
ΝΟ
JUMPER
I
N
STA
LLE
D
SELE
CTA
BLE
JUMPER
CONFIGURATIONFORDCCALIBRATION(VOLTAG
E
REFERENCE
VR
1
CALIBRATIO
N
NETWORK,
U5)
.
3
.ConnecttheDMM
Calibrator tothe8050Αas
f
ollows:ΗΙtot
h e
V
/
k
Ω/S
inputconnector
and
L
O
toth
eCOMM
ON
inputconnector
.
4
.AdjusttheDMM
Calibratorfor1.000OVac
r
m
s,
at
400Ητ.
5
.Turn ontheDMM
Calibrator
.
6
.W
i t
htheDMM,
m
eas
u
re
thevol
tageatpin
7 o f
t
heRMSCo
n
verterwi thre f
erence to
ground
(ΤΡ1).Thisvoltage
mu
st
be
O
.OVt
20
m
V
.
R
ecord
t
hisvoltagetothenearest0.1
m
V
.
Ifth
e
4-
1 1
L
O
W
HIGH
1
.8773
1
.8879
1
.8667
1
.8772
1
.8562
1
.8666
1
.8459
1
.8561
1
.8356
1
.8458
1
.8255
1
.8355
1
.8155
1
.8254
1
.8056
1
.8154
1
.7958
1
.8055
1
.7861
1
.7957
1
.7765
1
.7860
1
.7670
1
.7764
1
.7576
1
.7669
1
.7483
1
.7575
1
.7391
1
.7482
1
.7300
1
.7390
Page 56
M
AINTENANC
E
TROUBLESHOOTING
4-
1
2
m
easured
voltage
isbeyond
the
limi
t,
then
replacement
o
ftheR
M
S
Conve
r
ter
is
indi
cated
.
7
.Measure
t
he
voltage
atpi
n 6ofth
e
RM
S
Converter
.
If
this
voltageisgreater
tha
n
t0.5
mVo
f t
h
e
recorded
value
instep5,ad
just
t
h
e
p
oten
tiometer
on
t
heR
M
S
Co
n
verter
so
that
pin
6ist0
.2
m
V
of
pi
n
7
.
7
.
Perf
o
r
mthe
Calibration
Ad
j
u
stments
.
4-57.TRO
UBLE
SHOOTI
N
G
CAUTIO
N
T
hepcb
assemblies
use
d
Inthe8050Αcontai
n
C
MOScomponents
whic
hare
staticsen
sitive
.
P
leaserea
dandcomply
wit
htheInform
atio
n
on
t
hestatic
awarenesssh
eet
givenIn
t
he
b
eginning
ofthissection.
Table
4-11
.U33Jump
erP
ositio
ns
W
ARNING
DA
NGEROU
SVOLTAG
ESE
XIST
ONPC
B
ASS
EMBLIESEXPOSE
DFO
RTRO
UBLE-
SHOOTI
NG.EX
ERCISECAUTIONWHEN
MAK
I
NG
ME
AS
UREMEN
TS
ONLI
VE
CI
RC
U
ITS,
AND
U
SEANINSULATEDTOO
L
F
O
RALLAD
JUST
MEN
TS
.
SE
TPO
WER
TO
O
FF
BEFORE
REPL
ACING
ANY
COM-
PONENT
O
RDEV
ICE.
4-58
.
T
he
f
ollowing
informat
ioni
s
provided
tohe
lp
isolate
f
aults
anddir
ect
the
tec
hni
cia
ntoposs
ibl
ecau
ses
.
Sig
na
l l
eve
l
ornode
descr
ip
tio
n by
testpointisgive
n
in
Table 4-12
.
Α
tro
ub
lesh
ooting g
ui
de
ispresentedinTable
4-13.T
hi
s
guide
isintendedtobeused
in
co
n
j
unctionwith
t
he
P
er
form
anceTests.After
compl
eting
thetests,
n
ote
any
discre
pan
cies
that
h
ave
occu
rred,
find
the
test
h
eadingi
n
Table
4-13
and
theap
p
arents
ymptom, an
duse
t
he poss
ibl
e causeasαstarting point
introublesh
ooting
t
h
eproblem.
DISPLAY
RE
ADING
JUMPERCONFIGURATION,ΜΡ20
(AllJumperPinsIn
stalled)
AS
V
I
EWEDFR
OM
LEFTSIDEO
F
8050
Α
L
O
W
HIGH G
F Ε
ι ι
ι ι
1
.0100
1
.0497
Ι Ι
Ι
Ι
Ι Ι
Ι
Ι
1
.0498
1
.0932
Ι
Ι Ι Ι Ι
1
.0933
1
.1366
1
.1367
1
.1801
Ι
Ι
Ι Ι
τ
Ι Ι
1
.1802
1
.2236
Ι
Ι
Ι ι
Ι
τ
τ
τ
1
.2237
1
.2671
Ι Ι
Ι
Ι
Ι
τ
τ
Ι
Ι Ι
Ι
1
1
.2672
1
.3106
Ι
Ι
1
.3107
1
.3540
ΝΟ
JUMPERSI
N
STA
LLE
D
JUMPER
CO
NFIGUR
ATIONFOR
ACCALI
BRATION(RMSCO
NVERTERU32,CALIBR
ATIO
N
NETWORK,U33)
.
Page 57
Table4-12.TestPoi
n
ts
M
AI
NT
EN
AN
C
E
T
RO
UBLE
SHOOTIN
G
T
E
ST
POINT
FUN
CTIO
N
ι
T
E
ST
POINT
FUN
CTIO
N
1
CO
MMON 8
Α
/D Co
n
verte
rIn
tegratorOutput
2
+13
V
9
F
irst
AC
B
uffe
rOutpu
t
3
o
rCR
12
Cathod
e
+6
V
10
Secon
d
ACBuffe
rOutpu
t
4
-5
V
11
RM
SConve
r
ter
Output
5
-10
V
12
Display
B
ack Plane
D
r
ive
(50
Hz
S
qu
a
r
eWave)
6
Α/DConverterInput
7
Α/DConverterBuffe
rOutpu
t
13
Integrate
Control
L
ine
Page 58
M
AINTENANCE
TROUBLESHOOTING
Table
4-13.Troubleshooting
Guide
T
EST
AND
SYMPTOM
POSSIBLE
CAUSE
I
NITIAL
T
URN
ON
Display
Blank
Power
supply
(Q6),
power
switch,
interconnect,
microcomputer
U17
Display
"stuck"
withαconstant
reading
Touch
and Hold
on,
Q11,
Q12
R
eads
overloadfor
several
minutes
after
turn
on
Q17,
PowerOnR
eset
(U17pin
8)
DISPLAY
TEST
All
segments
on
Νο
drive
(50
Hz
squarewave,
ΤΡ
12)U10,
interconnect,
U
17
Allorno
decimal
points
U
16,
U
17,
interconnect
Decimal
pointinwrong
location
U
16,
range
switch
i
nput
to
U17
1ormoredigits
missing
1ormore
annunciator
missing
U
10-16,
interconnect,U17
L
INEAR
VOLTAGE
T
EST
Display readingisoutoftolerance
Outofcalibration
Constant
overrangeinDC
V
Α
/D,
Check
ΤΡ6,7,
and8for
proper
waveforms,U18,U19,
U20
Does not
respondtoinput
voltages
R
2
open,Α/D
input
Does
not
range
properlyinAC
V
U17,
U
31,U22,
07,
Q8
dB
VOLTAGE
T
EST
Does not go
into
dB
Function
switch
input
to
U
17
Does
not
autorange
U
17,U31,U22,
Q7,
08
Display reading
is
outof
tolerance
ACVis
out of
calibration
CURRENT
T
EST
Does
notrespondtoinput
currents
F2
Display
reading
is
out
of
tolerance
on1or
more
ranges
R16,
R17, R18, U6,U28,CR1
RESISTANCE/CONDUCTA
N
CETEST
R
eading
is
outoftoleranceon200n
and2k92
r
ange
R
3
R
eading
is
out
of
tolerance
on
other
ranges
U
1,
check
190Vdocalibration
Readings
are
out
of
toleranceonhigh
ohms
RV1,RV2,
RV3
overheated
from
severe
overload
Readings
are
noisyonall
ranges
R
T1,
C39
R
esidual
reading
with
test
leads
open
P
CB
is
contaminated
see
cleaning
procedureinSection
4
Page 59
TA
BLEOF
CO
NTENTS
Sectio
n
5
L
ist
of
R
ep
laceableParts
ASS
EMBLYNAME
DRAWING
ΝΟ
.
ΝΟ
.
TA
BLE
PAGE
ΝΟ
.
F
IG
URE
PAGE
F
inal
Assembly
8050
Α
-0&3
5-1
5-3
5-1
5-4
Al
MainPCBAssembly 5-2
5-5 5-2 5-9
F
ederal
SupplyCodesforM
a nufactur
ers 5-3
5-12
- -
Fluke
Technical
Service
Center s
5-13
- -
Page 60
L
IST
O
F
REPL
AC
E
A
BLE
PAR
TS
5-1
. I
N
T
RODU
CTIO
N
5-5.To
ensure p
rompt
delivery
of
t
he
co
r
rectpart,
5-2
.This
section
containsani
llustrated
l
isting
of
i
nclude
thefollowing
information
.
replaceablepartsfort
he 8050
Α D
igital
Multimeter
.
Orderingproceduresforpa
r
ts
and
α c
ross-reference
to
ί
.
F
luke
Stock
Number
.
f
ederal
s
upply codes
are
also
p
r
ovided
in
t
his
section
.
B
oth
mechanical
and
electrical
components
are
listed
by
2
.Description
(as
given
under
the
DESC
R
IP
reference
designators
.
E
ach
assemblyis
accompanied by
ΤΙΟΝheading)
.
an
illustration
s
howing
thepart
location
and
i ts
reference
designator.
3
.
R
eferenceDesignator
.
5-3
.
P
ARTS
O
RDERIN
G
INFORMATIO
N
4
.
Quantity
.
5-4
.
Electrical
components
maybe
ordered
directly
f
romthemanufacturer
by u
sing
the
m
anufacturer's
p art
5
.
Pa
r
t
Number
and
R
evision
Level
o f
number,
orfrom
t
heJohn
Fluke
Mfg.Co.,Inc.and
i
ts
component's
p
cb
.
authorized
representatives
by
u
sing
the
p
art
number
under
theheading
FLUKE
STOCK
ΝΟ.Final
assemblies
5-6
.
P
arts
p
r
ice
info
rmation
is
availablefromtheJohn
arenormallynot
available
as αwhole
assembly
.
Fluke
Mfg.Co.,Inc.orits
representatives
.
Page 61
Table5-1
.
8050
ΑFinal
Assembly
L
IST
O
F
REPLACEA
BLE
PARTS
Ν
0
Τ
5-
3
REF D E
S
D
ESCRIPTIO
N
F
I NAL
ASS
EMBL
Y
F
IGURE S-1
(8030Α)
FLUKE
STOCK
I
8030
Α
MFG
3
PLY
MF
GPARTΝΟ
.
CODE
I
LINE MOD
EL
TOT 0ΤΥ
R
E
C
0ΤΥ
ΑΙ
MAIN
PCB
ASSEM
BLY
(LINE)
1
F
1
FUSE.
FAST-ACT,
2Α
376582 71400
AGX-2
1
3
F
2
FUSE
.FI
BRE.3Α.
600
V
4
75
004
71400
BB
S-3
1
5
Η1
SC
REW.ΡΗΡ.6-32
Χ
1/4
385401
73734
19042
7
Η2
SCREW
.
ΡΗΡ.6-32
Χ1/2
320051
89536
320051
2
Η
3
SC
REW.RH
P.4-40
Χ
114
256156 89536
256136
3
Η4
SCREW.THD-FORMING,
3/20Χ5/16
494641
89536
494641
4
Η5
SC
REW.SEMS.6-32
Χ
1/4
178533
89536
178533
3
Η6
SCREW.ΡΗΡ.6/32Χ
3/8
288266 89536
288266
2
Ν7
WASHER,Ν6
FLAT
340503 89536
340505
2
J
1
CABLE.DISP
LAY
INTERCONNECT
507723 89536
507723
1
L
CD1
DIS
PLAY
.LI(KJID CRYSTA
L
507673
89536
307673
1 1
ΜΡ
1
B
EZE
L
.LC
D
47
9642
89536
47
9642
1
ΜΡ
2
BR
AC
KET
.LC
D
471730
89536
47
1730
1
ΜΡ
3
BUTTON.SWITCH
(FUNCTION)
423900 89536 425900
4
ΜΡ
4
BU
TTON.
SWITCH
(GRE
EN)
310271
89336
310271
1
ΜΡ
5
B
UTTON.GRAY
(OFFSET)
310164 89336
310164
1
ΜΡ6
B
UTTON.
SWITCH(R
ANG
E
)
4126759
Β
9536
426759
6
ΜΡ
7
D
ECAL.
CSA
325527
89536
325327
1
ΜΡ
8
CONNECTOR.
ELASTO
ERI
C
453092 89536
453092
1
ΜΡ
9
FUSE
HUM
ASS
EMBL
Y
316039 89536
316039
1
7
ΟORDER
FUSECAPONLYs
SEE
1`11012
.
ΜΡ
10 I
N
SERT.SI
L
I
CON
E
323139 89536
325139
2
tI
P11
INSULATOR
493044
8933
ό
495044
1
ΜΡ12
CA
P.FUSE
(F
OR
SEPARATE
ORDE
R
)
307699Β"36
507699
1
MP13
DE
CAL.DI
SC
(ONHANDLE)
478248 89536 478248
2
ΓΦ14
PANEL,FR
ONT
310136 89336 310136
1
ΓΡ
15
RECEPTACLE,
AC
47
1029
89536
471029
1
4ΙΡ16
RETAINER,FL
EX
510198 89536
510198
2
ΜΡ
17
SHΙELD#INSULATOR
516021
89336
516021
1
ΜΡ18
SHIELD,
MAIN
510172 89536
510172
1
ΓΦ19
SHIELD,
TOP
310180
89536
510180
1
ΜΡ20
INSULATOR,PC8
525196 89536
325196
1
ΜΡ
21
DECAL.FR
ONT
PANEL 507637 89536 307657
1
ΜΡ22
CASE.
EXTERIORPLASTIC
478008 89536
Φ
8008
1
ΜΡ
23
HA
NDLE.
MOLDEDPLASTIC
330092
89336
330092
1
ΜΡ
24
DECAL.SPECIFICATION
507665 89536 507665
1
ΜΡ
25
T
ESTLEAD
W/PROBE(Υ8132)
316666 89536
516666
1
ΜΡ30
D
ECAL
.FACTORYMUTUAL
524611 89536
524611
1
ΜΡ31
J"E
R
ASSY.(FOR
U5)
537514
69536
53
75
14
1 1
1113
32
JUMPERASSΥ.
(FOR
U33)
537322
89536
337322
1 1
ΙΡ33
BOX,
UNIT
SHIPMENT
697821
89536
697821
1
ΓΡ34
BOX
L
I
NE
R
723153
89536
723133
1
W1
LIN
ECORD
343723 89536
343723
1
ΤΜ
1
I
NSTRUCTION
MANUAL
(
Β
030Α)
530907
89536
530907
1
RECOMMENDED
SPARE
PARTS
KIT
(8050Α)
333919 89536
333919
A
R
Page 62
L
ISTOF
REP
LACEA
BLE
PARTS
5-
4
Figure
5-1
.
8050
ΑFinal
Assembly
Page 63
CAUTION
®
ΙουεCττοσΑΙRΑΙε
ΙΥ
ITATIC
E
LECTR
ICITY
ο
BEZ
ELSE
CTIO
N
E-
000000000
ι
=
ι
ΟΟ
Q0
σ
tj
ΜΡ
5
Η
4(2)
ΜΡ
3
ΜΡ
6
ΜΡ
14
ΜΡ
21
ΜΡ
4
FR
O
NT
V
I
EW
ΜΡ
11
ΜΡ
19
SID
E
VIEW
8050Α-4001
F
igure5"
1.8050ΑFinal
Assembly
(cont)
L
IST
O
F
REPL
ACEA
BLE
PAR
TS
5-5
Page 64
L
IST
OFREP
LACEA
BLEPAR
TS
F
igure
5-1.8050
ΑFinal
Assembly
(co
n
t)
. .
ιS^
~1~~
τJS7 ;i
ι
Page 65
Table5-2
.Α1
MainPCBAssembly
L
IST
OFREPL
ACEAB
LEPARTS
.
...
WRAP
. .
..ι .°~
.'
5-7
REF
DES
ι
DESCRIPTIO
N
Ι
S
FLTIJK
ΝΟ
~
Κ
(
COD
E
Ι
MF
G P
A RTΝΟ
.
TOT
0
ΤΥ
RE
C
QTY
Ν
0
Ε
Α
1
MAIN
PCB
ASSEMBLY
LI
NE
MODEL
1
F
I
GURE5-2
(8050A
-4ω1ΑΑ1)
2
C1
CA
P,VAR,
1-5-0
.25
PF.2000
V
218206
72982
530-000
2
C2
CAP
.
VAR,
1-5-0
.25PF.2000
V
218206
72982
530-000
R
E
F
C3 CAP,
M
I
CA,
120
PF
+/-5Χ,
500
V
148466
7213
6D1117
121
J
2
C4 CAP,
MICA,
120
PF +/-5Χ.
500
V
148486
72136
D
M
15FI21
J
R
EF
CS
CAP,
MICA,
1800
PF
+/-5
χ
,
500
V
148353
89536
14~i53
1
C6
CAP,POLYPROP.10
I
F
+/-10Χ.
100
V
446781
89536
446781
1
C7
CAP,ΡOL
YEST.1.0IF
+/-10Χ.
100
V
44Τ847
37445
C280MAF1/
ΑΙΜ
Ι
C8 CAP.
TA,
10OF
+/-20Χ,
15V
193623
56289
196D106X0015A1
4
C9 CAP.POLYPR
O
P
.
.22
LF
+1-10
Χ.100
V
446799
89536
446799
1
010
CAP.POLYESTER,.022OF
+/-10χ,
1000
V
448183
52763
ΓΧΤ.1822
322/10
1
C11
CA
P.MYLAR
.
.047
IF+/-10Χ,
250
V
162008
73445
C280MAE/447
Κ 2
C12
CA
P
.
ELECT.470
I
F
-10/+75Χ.
16V
501510
89536
501510
2
C13
CAP.
ELECT
.
470
LF
-10/+75χ,16Υ
501510
89536
501510
R
E
F
C14
CA
P
,
TA,
10
IF
+/-20Χ,
15V
193623
56289
196ΟW00015
Α
1 R
E
F
C15
CAP,
TA,
22
tF
+/-20
Χ,15
V
423012
56289
1960226ΧΟ013
ΑΙ
1
C16
CAP.
ELECT,
220
IF-10/+75Χ.
25
V
484071
89536
484071
2
C17
CAP,
ELECT,
220
IF-10/+75Χ,25V
484071
89536
484071
R
EF
CIS
CA
P,ELECT
.22t
F
-10/+75Χ.16V
436840
89536
436840
2
C19
CA
P,ELECT,
22
I
F
-10/+75Χ,
16V
436840
89536
436840
REF
C25
CAP.CER,
1000
PF
+/-20χ,
100
V
149153
56289
C023810IF
103
M
3
C26
CA
P,CER.
1000
PF
+/-20χ,
100
V
149153
56289
C0238101F103
M
RE
F
C27
CAP,
TA,2.2Ι1
+/-20Χ,20V
161927
56289
196D226X0020HA1
1
C28
CAP,POLYPROP,.047
OF
+/-10Χ.
100
V
446773
89536
446773 1
C29
CAP,
MICA,
180
PF
+/-SX,
500
V 148460
72136
DMlSF181
J
1
C30
CAP,
MICA,
68 PF
+/-5χ,
500
V
148510
72236
DMlSF
680
J
1
ρ
1
CAP,
MYLAR,
.
ΟΦ
L
F
+/-10Χ,
250
V
162008
73445
C280
ΜΑΕ/Α47Κ
REF
C32
CAP,CERAMIC.1000
PF
+/-10
Χ
.
500
V
357806
56289
C016
13
102G-102
1(
3
C3ης
3
CAP.
TA,
10
tF+/-20Χ,15Υ
193623
56289
196D106
Χ
0015Α1
R
EF
ι
C3,5
CAP,CER
AMIC.1000PF
+/-10Χ,
500
V
357806
56289
C0168102G-102
Κ
REF
C36
CAP.
CERAM
IC,
1000
PF
+/-10%,
500
V
357806
56289
C0168102G-102
Κ
R
EF
C37
CAP,
CER,.025
LF
+/-20Χ,
100
V
168435
56289
C023
ΒΙΟΙΗ
233
Μ i
C38
CAP.ELECT,
47
LIF+/-20Χ,10V
613984
89536
623984
2
039
CAP,
ELECT.
47
L
F
+/-20Χ,
10
V
61
3984
89536
613984
REF
C40 CAP.MICA,
330
PF
+/-SX,
500
V
148445
72136
DM15F331
J
1
C41
CAP.
ELECT,10LF
+/-20Χ.16Υ
614859
89536
614859
2
C42
CAP,
TA,
10
IF+/-20Χ.
15V
193623
56289
196D106XOOISA1
REF
C43
CAP,CΣR.
1000
PF
+/-20Χ.
100V
149153
56289
C023
BI01
FI03H
R
EF
C44
CAP,ELE
CT,
10
LF
+/-20Χ.16V
614859
89536
614859
RE
F
C
L
1
DIODE.FED,
CLIRRENTREGULATO
R
393454
07910
7CR5290
1 1
C
R1
DIODE,
SI,RECTIFIER.
2
AMP,
50VO
LE
3φ559
14099
1115400
1 1
CR2
DIODE,
SI. L
.D-CAP/L
0-LEA
K
348177
07263
FD7223
3
1
CR3 DIODE.
SI,
LO-CAP/LO-
LEAK
348177
07263
FD7223
R
EF
CR
12
DIODE.
SI,LO-CAP/LO-(
ΕΑΚ
348177
07263
FD7223
R
EF
ΓΡΙ
SP
RING.
COMPRESSION
COIL
422824
83553
00240-026-0500-5
1
ΜΡ
2
SUPPORT,HYB
RID(Τ0U32)
515635
89536
515635 2
ΜΡ
6
SLPPORT.RESISTO
R
545079
89536
545079 1
Μρ
7
CLIP,
COMP
ONENT
516880 89536
516880
2
We
S
P
ACER,
SWAG
E
D
525
154
89536
50154
4
Ι1Ρ9
SPACER.
STANDOFF
295089 89536 295089
2
Q1
XSTR,
SI,ΝΡΗ
218396
89536
218396 3 1
2
2
XSTR,
SI,ΝΡΝ
218396
89536
218396
RE
F
03
XSTR.
SI,ΝΡΝ(METAL
)
329698
89536
329698 1
1
9
4
XSTR.
SI,
ΡΝΡ
225
599
072632Ν
4250 2
1
Q7
XSTR.FIELDEFFECT(FΕΤ
)
370072
89536
370072
2
1
98
XSTR,FIELDEFFECT(FET)
370072
89536
370072
RE
F
all
XSTR
,
SI,
ΡΝΡ
195974
047
132Ν
3906
1 1
2
12
XSTR,3Ι.ΝΡΗ
168716
07263
S19254
1 1
014
XSTR,
S
I.
ΡΝΡ
(SELECTED)
380394
89536
3®0394
3
1
Q15
XSTR.
S
I
,
ΡΝΡ
(SELECTED)
380394
89536
380394
REF
016
XSTR,
S1,
ΡΝΡ
225399
07263
2Η4250
R
E
F
017 XSTR,
SI,
ΡΝΡ
(SELECTED)
3®0394
89536
390394
RE
F
ΘΙ
8
XSTR.
SI.
ΝΡΝ
218396
89536
218396
RE
F
Page 66
L
IST
O
F
REP
LACEA
BLE
P
ARTS
5-
8
Table
5-2
.
Α1MainPC8
Assembly
(co
n
t)
R
EF
DES
DESCRIPTIO
N
FLUKE
STOCK
ΝΟ
.
MFG
S
PL
Y
COD
E
MFGPARTNO.
TOT QTY
RE
C
QTY
Ν
0
τ
Ε
019
XSTR,
FET,
DUA
L M
-CH
A
HNE
L
419283
89536
419283
1 1
R 1
R
ES,
CCIP,
100
Κ
+/-10
Χ,1
γ
109397
01121
G81041
Ι
R
2
RE
S,
γγ,1000
+/-10Χ,
2γ
47
40Ε10
89536 474080
1
R
3
RE
S,
ΜΤ1.-
F
I
LM,
1000
+/-5Χ,
1/10
W
514265
89536
514265
1
R
5
RE
S,
CΣR,
100Κ+/-10Χ,
1/2
γ
527099
89536
52W99
Ι
R
6
R
ES,
VAR,100
+/-10Χ,
1/2
γ
529115
89536
529115 1
R
7
R
ES.VAR,CER,
1
14+/-
10%
,
1/2
γ
313259
89536
513239 1
R
8
R
ES,
COMP,
220Κ+/-10
Χ,2
γ
110197
01121
Η
131011
1
R11
.
R
ES,
V
A
R
,
CER,
500
+/-10
Χ,1/2
W
447730
89536
447730 Ι
R1
2
R
ES,
CERMEτ,
200
+/-10Χ,
1/2
γ
47
4973
89536
47
4973
Ι
R
14
RE
S,
D
EP
.
CAR,
IM
+
/-SΧ,
Ι/4γ
348987
80031
C
R
251-4-5Ρ1
λ 4
R
13
RES,
DEP.
CAR,
20 +/-3Χ,
1/411
4422
ο2
80031
C
R
251-45
ΑΖΟΕ
1
R
16
R
ES.ΜΤL.
FI
LM,900+/-Ο.
ΙΧ,Ι
/8
W
46
Ι
988
93637
CMF55901
Ι
R
17
R
ES,
ΜΤL.FILM
90
+/
-0.1Χ.1/8
γ
461770
91637
C
f
F3
5902
1
R
18
ΑΕS,WW,
9
+/-.15Χ.
Ιγ
461962
89536
461962
1
R
19
RE
S,CΟΜΡ,1005
+/-3
Χ
,
2γ
285056
89536
285
Μ
Ι
R
20
R
ES.COMP,2.2Μ+/-10Χ,
1/2
W
1082
δ
89536
265056
Ι
R
21
R
ES,
C0PP,22Μ
+/-5Χ,
1/4
Ν
221986
01121
C82265
1
R
22
R
ES.DEP.
CAR,100
1/4U
348771
80031
CR
251-4-513100
Ε
3
R
23
R
ES,
DEP.
CAR,
100 1/4
γ
349771
80031
CR231-4-
P
100
Ε
R
EF
R
24
R
ES,
COMP,4.7Μ+/-SΧ,
1/4
γ
220046
01121
CB
4753
4
R
29
R
ES.VA
R, 1
Λ
+/-10Χ,
1/2
γ
485052
89536
485052
1
R
30
R
ES,
DEP.CAR.
470Κ+/-=,
1/4
W
342634
8003
Ι
C
R
δ
1-4-5
ΡΦΟΚ
1
R
32
RE
S,
DEP.CAR,1Λ
+/--5L114
γ
348987
80031
C
R
251-4-
W
l
M
R
E
F
R
33
R
ES,
00
.CAR,
1Μ+/-5Χ,
1/4
γ
34898
Τ
80031
C
R
δ
1-4-S
ΡΙΜ
REF
R
36
RES,
DEP.
CAR,ISK+/-Χ,
1/4U
348854
80031
CR251-4-5Ρ15
Κ
1
R
37
RES.
COP,4.711
+/-5Χ,
114
γ
220046 01121
084755
REF
R
38
RE
S.DEP.CAR,
1315
+/-5Χ,
1/4
W
348854
80031
CR251-4-5
Ρ
15
Κ
R
E
F
R
39
R
ES,
ΜΛL.FILA,
232Κ+/-1Χ,
1/8
γ
276618
91637
Q1F552323
1
R
40
R
ES,
DEP.
CAR,
680
+/-SX,
1/4
W
368779
80031
CRδ
10405P680
E
1
R
42
R
ES,
DEP.
CAR,27Κ
+/-3Χ.
1/4
γ
441501
80031
CΑδ1-4-5
Ρ27Κ
1
R
43
R
ES,
DEP.
CAR,
750Κ+/-SΧ,
1/8
γ
442525
80031
CR251-4-SΡ750
Κ
1
R
44
R
ES,
DEP.
CAR,
100
+/-SΧ.
1/4γ.
348771
80032
CR251-4-3
Ρ
100E
R
E
F
R
45
RE
S.C
ΟMΡ,4
.711
+/-5Χ.
1/4U
220046
01121
C84755
R
E
F
R
46
R
ES.FXD
.
24(
+/-5Χ,
1/4U
442384
80031
C
R
251-4-SP24
K 1
R
48
R
ES,
DEP.CAR,
155
+/-5Χ,
114
γ
348854
80031
CR251-4-5Ρ15
Κ
R
EF
R
49
R
ES,
DEP.CAR,27Κ
+/-5Χ.
1/41
441501
80031
ΕR251-4SΡ27
Κ
1
R
52
R
ES,
COMP,
47Μ+/-10Χ,
1/2
γ
246423
89536
146415
1
R
53
RE
S,
COMP.4.711
+/-5Χ,
1/4
γ
220046
01121
C84755
REF
R
54
R
ES.DEP.CAR.1Λ
+/-ν5Χ.114U
348987
80031
C
R
251-4-ΡΙΜ
REF
R
55
RES.OP.CAR,
470
Κ
+/-5Χ,
114
γ 342634
80031
εR25
1-4-Ρ470
Κ
1
R
56
R
ES,
CAR.DEP,
1
+/-5
Χ.1/4
J
357665
80031
CR251-4-5
PI
Ε
1
R
T1
ΤΗΕRΜΙSΤΟΑ
446649
50157
180810200
1
1
RV
1
VARISTO
R
447672
09214
V4301
W
3 3
R
V2 VARΙ
STO
R
447672
09214
V
430
ΛΑ
7
R
E
F
R
V3
VA
R
Ι
STO
R
447672
09214
V
430MA7
RE
F
S
I
-S10
S
W
ITCHASSE
MBL
Y
507707
89536
507707
1
S11
α
U
ΙΤο
1
473736
89536
47
3736
2
S12
SWITCH
473736
89536
47
3736
R
Ε
F
Τ
1
TRANSFORMER,
ΡΟWΕΑ
O
RD
E
R
FO
R
APPROPRIATE
VOLTAGE
1
120
V
512939
89536
522939
100
ν
513283
89536
313283
240
V
513291
89536
31329
1
115V,60ϋτ
512939
89536
512939
ΤΡΙ
--5
TERMINAL
PINS
379438
89536
379438
12
ΤΡ
7-13
Ul
R
ESISTOR
NETWORK
501080
89536
501080
1
1
3
L12
R
ESISTOR
NETWORK
512905
89536
512905
1 1
U3
RESISTO
R N
E
TWOR
K
513336
89536
513556 1
1
U4
R
ESISTO
R
NETWORK
-
513580
69536
513580
1
1
us
R
ESISTO
R
λβΤγΟΑΚ
519736
89536
519736 1 1
U6
IC,R
ES.2-RESISTOR
SHUNT
461491
89536
461491
1 1
L17
I
C
.OP-
ΑΓΡ.DLIA
L,COMPENSATED,8-
PINDIP
418566 18324
LM
359M/CR3999
2
1
Li
I
C.OP-VP.OLAAL.
C
ΟΛΡΕNS
ΑΤΦ."IN
DIP
418566
18324Ltg59H/CR3999
RE
F
Page 67
Ta
b
le
5-2
.Α1
Main
P
CBAssembly
(cont)
L
IST
O
F
REPL
AC
EABLE
PAR
TS
1
Pl
easebe
aware
of voltage
changes
.
ΖCertain
components
say
notbe
u
se
dth
erefore
maynotbeinstalled.
3
Ul
P/N
510941
maybe
use
d
i
nplace
of
P/N
501080
4U2
P/N
510834
maybe
use
d
i
n
place
of
P/N
512905
.
5-
9
REF
DES
DESCRI
P
TIO
N
FLUKE
STOC
K
ΝΟ
.
MF
G
3Ρ
COOS
MF
G
PARTNO.
TOT
QTY
0
Ν
QTY
IRECI
Τ
U9
I
C
.LOW
POUR,
DUA
L
VOLTAGE
CO
ΓPA
R
Α
TO
R
478354
01295
LM"
2
1
U
10®
I
C.C-IOS.LIQUID-CRYSTAL
4-SEG
MEN
T
453225 02733
Φ
40"
Ε 3
1
U
lI
®
I
C.C-f10S
.LIQ
U
I
D-CRYSTAL4-SEG
ME
N
T
4532
ό
02735
C
D
4054B
E
RE
F
U120
I
C
.
C-flOS
.
LIQUID-CRYSTAL
OSPLY
DRIV
ERS
307376
02735
CΩ4056ΗΕ
4
1
U
13
®
I
C.C-MOS.L
I
Q
U
I
D-CRYSTALDSPLY
D
RI
V
E
R
S
507376
02735
CD40568Ε
REF
U140
I
C.C-flOS
.
L
I
Q
U
I
D-CRYSTALDSPLY D
RI
VE
R
S
507376
02133
ΓD4056
ΒΕ
R
E
F
U150
I
C.C-MOS
.
L
I
Q
U
I
D-CRYSTALDSPLY
D
RI
VERS
507376
ΟΤ
1135
CD4056SE
RE
F
U160
I
C.C-MOS
.
L
I
Q
U
I
D-CRYSTA
L
4--SEGMENT
453225
02735
CD4054BΕ
RE
F
U
17
®
I
C.C-fm.
SI.Η-C
ΗΑΝ
ΕΙ.40
PINDI
P
524900
89536
524900
1 1
U
18
I
C.S
ELE
CTED(8050Α-4506)
515999
89536
515999
1
1
U
19
I
C.SELECTED(8050
Α
-4506-01)
5
1
6005
895
Ζ6
516005
2
1
U
20
I
C.SELECTED
(8050
Α
-4506-01)
516005
89536
516005
R
E
F
U21
I
C.OPERATIONAL
AMP
.
(8050Α-4504)
609883
89536
609883
Ζ
1
U22®
I
C.C-f10S.QUAD
BILATERAL
SU
Ι
TCll
.
14-PIN
363838
1204ΟΜΜ
616
ΑΝ
1
1
U23
I
C
.
ΟΡΕRΑΤΙ
6
k
ΙΑ
1
AMP
.
(8050Α-4504)
609883
89536
609883
R
E
F
U24
VOLTAGE
REGUL
ATO
R
507434
89536
507434
1
1
U
25
VOLTAGE
REGUL
ATO
R
507442
89536
507442 1 1
U
27
RE
SISTORΗΕΤΗΟ
R
Κ
513598
89536
513598 1
1
U28
RE
CT
IFIER BRI
DGE
418582
83003
V
M08
2 1
U29
R
ECT
IFI
E
R
BRIDGE
41858?
83003
V
M08
REF
U31
I
C
.LO
W
POWER,
DUA
L
VOLTAGECΟΓΡΑΑΑΤΟ
R
478354
01295
LM"
R
E
F
U32
HY
BR
IDR
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Page 70
8050
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Ta
b
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5-3
.Fed
e
r
al
SupplyCodes
fo
r
Manufacturers
01121
Allen-BradleyCo.
12040
N
ational
Semiconductor
Corp
.
72982
Erie
Tech.Products.Inc
.
M
ilwaukee,Wisoncs
ί
n
Οαπbυrη,
Connecticut
Erie.Pennsylvania
01295
Texas
Instruments,
Inc
.
14099
Semtech
Corp
.
73445
AmperexElectronic
Corp
.
Semiconductor
Components
Div
.
N
ewbuηPerk,
California
H
icksville
.New
York
Dallas,
Texas
18324
SigneticsCorp
.
73734FederalScrewProdu
cts,Inc
.
02735
RCA
Corp
.
Sunnyvale.California
Chicago.Illinois
Solid State
Div
.
Somerville
.
New
J
ersey
30035Jolo
Industries,
Inc
.
78189 Shakeproof
GardenGrove,
California
Div.of
Illinois
ToolWorks
04713
Motorola
Semiconductor
Products,
Inc
.
E
lgin,
Illinois
Phoenix,
Arizona
50157
Midwest
Components,
Inc
.
Muskegon,
Michigan
80031Mapco
07263
F
airchild
Semiconductor
Div
.
of
Sessions
ClockCo.
Div,ο1
Fairchild
Camera
52072
Circuit
Assembly
Corp
.
M
orristown
.NewJersey
ά Instrument
Corp
.
CostaMesa,
California
Mountain
V
iew,
California
83003Veto,
Inc
.
52763
Stett
ner-Tr
υ
s
h,In
c
.
Garland.Texas
07910
TeledyneCorp
.
Cazenovia,
New
York
(Continental
Device)
83553
Associated
SpringBarnes
Group,
Inc
.
H
awthorne.California
53217 TechnicalWire
Products,
Inc
.
Gardens,
California
Santa B
arbara,
California
09214G.E
.
Semi-Conductor
Products
Dept
.
89538Fluke,John Mfg.Co.,Inc
.
Auburn,New
York
56289
SpragueElectric
Co
.
Seattle,Washington
North
Adams,Massachusetts
09922
Θυrηdγ
Corp.
91502
AssociatedMachin
e
N
orwalk,
Connecticut
71400
Bussmann
Mfg
.
Santa
Clare,
California
Div.of
McGray-Edison
Co
.
11503
Keystone
Mfg
.
SaintLouis,Missouri
91837
Date E
lectronics,
Inc
.
Div.of
Avis
Industrial
Corp
.
Columbus,Nebraska
W
arren
.Michigan
72136Electro
MotiveMfg.Co
.
W
illismantic,
Connecticut
Page 71
T
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C
HN
ICALS
ERV
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C
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S
FLUKE
0
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in
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J
ohn
FlukeMfg.Co.,Inc
.,
Ρ
.
Ο.Box
C9090,Everett,WA
98206.Phone
(206)
342-6300
F
luke(Holland)B
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5053,
5004
ΕΒ,Tilburg,
TheNetherlands.Phone
(013)
673973
5-13/5-14
U
.S
.
dιCanad
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Australia
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ΜιτΙεο
Elmeasco
Instruments
Pty Ltd
.
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$.Α
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Chrιstensen S.A.
CA
.
Burbank
P.OBox
30
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Guιllermo
Prιeto
76-304
Fluke Technical Center
Concord
.N.S.W.
ZACdeBUC
Col
San
Ratael
2020 Ν.Lincoln
Street
Australia
2137
Β.Ρ
Νο.31
ΟeΙeg
αειοη
Cuahutemoc
Burbank,CA91504
Tel:(02)
738-2888
78530
BUC,
France
06470-Μαχιcο.
Ο.F.
(213)
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Australia
Tel:09-33-1-9568131
Tel:546-25-95
CA.Santa
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Netherlands
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luke Technical
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Ρ.Ο.Box
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Scientific
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2300Walsh
Ave.,Bldg
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Κ
Mr
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averly
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V
IC 3149
Representations
L
td
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Zonnebaan
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ustralia
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CH
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luke
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Pty
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Hong
Kong
Tel
:
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1980
S.QuebecSt. .
Unit
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GPO
Box
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SchmidtδCo
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Ltd
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Zealand
Denver.CO
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Brisbane,
Queensland
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ingOnCentre
McLean
information
TechnologyLtd
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(303)
750-1228
Australia
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reek
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lektronische
Gerate
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inditron
Services
Pvt
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Ltd
.
Norway
(305)
896-2298
V
ertriebs-KG.,Obachgasse
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Field
Service
Centre
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orgenstierneδCo.Α
/S
IL,
Rolling
Meadows
Α-1220Vienna,
Austria
8th
Main
Road
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Technical
Center
Tel:(0222)
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Extn
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Ρ.Ο.Box
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icks
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angalore 560
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eadows,ΙLIΟΟΟΘ
Fluke (Belgium)
S
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Tel:33139
Tel:09-47-2-356110
(312)
398-5800
8.RuedeGeneve
India
Pakistan
MA,
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Hindition
Services Pvt
.Ltd
.
Pak
International
Operations
F
luke
Technical
Center
Tel:09-32-2-2164090
69/A
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.
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agmohandas
Μαι
g 505
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25
"Β"
Street
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ombay
400 ΟΟβ.India
ι.1.
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.
Tel:811316
Ρ.Ο.Box
$323
(817)
273-4878
ΑΙ.Αmατοπαα
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vills.Barueri
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arac
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i-2Pakista
n
MD,
Rockville
CEP
06400
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Paulo,
Brazil
H
indίtron
Services Pvt
.Ltd
.
Tel
:
221127/239052
Fluke
Technical
Center
Tel:(011)
421-3603
15.Community
Centre
Peru
5840
F
ishers
Lane
Chile
P
e n
chs
h
ilaPa
rk
I
mp
ortaciones
ΥReprese
n
taciones
Rockville,MO20852
Introniea
ChileLtd&
.
N
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Delhi,
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110-017 E
tronicasS.A
.
(301)
770-1578
Casilla
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Tel:819118
Avda
.
FranklinD.
Roosevelt 105
NJ, Ρ
aramus
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ima1,Peru
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Tel:44940
R.D.T.Electronics
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.
Tel
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W
est
75th
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China,
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Ο.Box
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ei
jingR
a
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esearc
h I
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stitute
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et
SparkRadio
and
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hills
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etro
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luke
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nter
Tel:445812
Tel:09-972-3-463211
Tel
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idway
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Sistrelθ.ρ.Α.
Equipamentos
de L
aboratorio,
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tda
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lvd
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Tel:232-45-32
Tel:(2)
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verett
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ASSOC
.,
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td
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αρα
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ohn
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Mfg.Co.,Inc
.
Fluke S.A.
(Pty)Ltd
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Protκo
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ississauga
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rawford
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td
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iaison
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ldg
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td
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ayα.Selango
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estMalaysia
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enatsc
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Page 72
TA
BLE
OF
CO
NT
ENTS
Sectio
n 6
O
p
tions
and
Accessories
OPTION/
DESC
R
I
P
TIO
N
PAGE
M
OD
EL
NUMBER
ACC
E
SSORIES
Υ
8205
Soft
Carrying
Case
. . .
. . . .....
. . . . . . . . . . . . .
. . . .
. . . . ...
. .
. . . .
600-1
C-86
Ru
ggedized
Car
r
yingCase
. . . . . . . . . ... . . . ...
. ...
. .
. . .
. . .
. . . . .
600-1
MOO-200-611
O
ffset
Mounting
Kit
. . . .
.
. . . . . . . . . ... . . . ..... . . . . . .
. .
. .
. . . . .
600-2
MOO-200-612
Ce
n
terMountingKit
. . . . .
. . . . . . . . . ... . .
. . . . .
. . .
. . . . .
.
600-2
MOO-200-613
Dual
Mounting
Kit
. .
. ... . . . . . . .
. . .
. . . .
. . . . .
. . . . . .
. . . .
. . ...
.
600-3
80T-
Η
T
ouch-HoldProbe.. .
. .
. .
. . . . . . . ..... . . .
. . . .
. . . . . . .
. .
. . . ...
.
ό
00-4
80T-150C
Temperat
u
re P
robe
°C
.
.
.
. . . . . . . ... . . . . .
. . . .
. . . . . .
. . . .
. . .
. . .
600-5
80T
-150
F Temp
erat
urePr
obe
°F. . . . . . . . . . .
. . .
. . .
. . . .
. . . . . .
. . . .
. . . . . .
.
600-5
80i-600
Curre
n
tTransf
ormer
. . . . . . . . . . . .
. . . . ... . . .
. . . . . .
. . . .
. . . . .
. . .
600-5
80
J
-10
Current
Shunt
. . .
. . .
. . . . . . . . . . .
. . . . .
. . .
. . . .
. . . . . ...
. .
. . . ...
.
600-5
80Κ-6
High
V
oltageProbe
. . . . . . . . . ... .
. . . .
. .
. . . . .
. . . . .
. ...
. . . . .
. . .
600-5
80
Κ
-40
High
V
oltageProbe.. . . . . . . . ...
. . . . . ... . . .
.
. . .
... ...
. . . .
. . . .
600-5
83
RF RF
P
robe
...
. . .
. . .
. . . . . . . . . . . .
. . . .
. .
. . . . .
. . . . .
. . . .
. . . . .
. . .
600-5
85
R
F
RF
P
robe
. . . . . .
. . .
. . . . . . . . ...
. . . . .
. .
. . . .
. . .
...
. ...
. . . .
. . . .
600-5
Υ
8100
D
C/AC
CurrentProbe
. . . . . .
. . . .
. .
. . . . ...
. . . . .
. . .
. ... . . .
. . .
.
600-5
Υ
8101
ACCurrent
Transformer
. . . . .
. . . ... . . . ...
. . . . .
. . .
. . . . . .
. . . .
.
600-5
Υ8Ι
34
D
eluxeTextLeadKit
(safety
designed)..
. . . . . . .
. . .
. . ... . .
. . .
. .
600-5
Υ
8140
Slim,-Flex
TestLeads
. . . . . . .
. . . . . ... . .....
. . . .
. . . .
. ... . .
. . . .
.
600-5
OP
TIO
NS
-01
Rechargeable
(Ni-Cad)
Battery
Option
. . . . . . . . .
. . .
. . . . . . .
. . .
. .
601-1
Page 73
600-1
. INT
RODU
CTIO
N
600-2
.
Thi
s sub
sectiondescribes
thebasicuse
o
fthe
accessor
i
es
availablefo
r
yo
u
r
8050Α.Formore detailed
inf
ormation,refer to
theinstruct
i
on
sheetincluded
wit
h
eachaccessory
.
W
he
n
orderinganaccessory,inc
lu
de
i
ts
m
ode
l
n
a
m
e
and
num
ber
.
600-3.SO
F
T
CA
RRYINGCASEΥ
8205
6004
.
TheModelΥ
8205
Soft
Carrying
Case
(show
n
in
Fi
gure
600-1)is
designedfo
r
t
he
storage
and
transport
o
f
t
he
8050Α.
T
h
e
caseprovides
adequateprotection again
st
normal
h
an
d
lin
gand
storage con
ditions
.Inaddition to α
s
ho
ul
der
strap, theΥ
8205
inclu
des
α
storage
co
mp
artmen
tfortestleads,power
cord,and
other
compact
accessories
.
F
igure
600-1
.
M
odelΥ
8205
Carrying
Case
Accessories
600-5.RU
GG
E
DIZ
EDCA
RRYINGCASEC86
600-6
.
TheM
ode
l
C86
R
u
ggedized
Carrying
Case
(show
n
in
Figur
e
600-2)is
αmo
l
ded,
polyethylene
carryingcase
desig
ned
toprovidemax
imum
protect
ion
against
rough h
and
lin
g andadverse
e
nv
ironm
en
ta
l
conditions.The
C86
containsαse
p
arate
storage
compartmen
tfor
testleads,powercord,and
.
other
compact
accessories
.
F
igure
600-2
.ModelC86
Carrying
Case
600-7.RACKMOUNTI
NGK
ITS
600-8.Three
rackmountingkits
are
availablefor
m
ounting
yo
u
rinstr
um
ent
in
α
standard
19-inch
e
quipmen
t
rack.
T
he
ki
ts
allow
the8050Αto
bemounted
inthe cen
ter,
offset,orside-by-side
(Dual)inα
standard
19-
in
ch
e
quipm
e
n
t
rack
.
600-9
. Installatio
n
600-10
.
In
stallation
in
structionsfor
t
he rackmountin
g
ki
ts
are
give
n
inth
efollowing
paragraphs
.
600-1
Page 74
ACCESSO
RIE
S
600-11.OFFSET
ANDC
EN
T
ER
MOUNTINGKITS
MOO-200-611
AN
D
MOO-200-612
600-12
.
U
se
thefollowingpr
oced
u
reto
instal
l
an
8050
Α
u
sing α
cente
rmountingor
an
offsetmoun
ting
ki
t
:
600-2
1
.
R
e
m
ove
t
he car
ry
i
nghan
dlebyre
m
oving
the
h
a
ndl
e disc
decals
andtheha
nd
l
emo
untin
g
screws
.
2
.
R
emove
thescrew
fr
o
m
th
erear ο
£the
case
and
r
e
m
ove
thecase
.
3
.
In
sta
ll
thesid
e
m
oun
tingbrackets
as
show
n
in
F
igure
600-3,
and
secure
themto
themounting
pa
nel
usingthe
nu
ts
prov
i
ded
.
4
.
I
n
sert
t
he
f
ro
n
t
o
fth
e
case
thr
o
ughthe
o
penin
g
on
the
backside
o
f the
m
oun
ting
panel
.
5
.
Install
thehan
dlemoun
ting
screws
throug
h th
e
side brack
ets
i
n
to
themoun
ting
bosses.Don't
overtigh
te
n th
ese
screws
.
6.Slide
t
h
einstrument
thro
ug
h the
m
o
untin
g
p
an
e
l
andin
to
the
case
.Insta
ll
andti
gh
te
n
th
e
r
etaining
screwatthe
r
ear
o
f
the
case
.
600-13
.
DUAL
MOUNTING
KIT
MOO-200-613
600-14
.
Use
t
he
f
ollowingprocedure
to
installan8050A
using
αdua
l
mounti
ng
ki
t :
F
igure
600-3.RackMounti
ngKits,
OffsetandCen
terMounti
ng
Page 75
1
.
Re
m
ovethecar
ryinghan
dles
fro
m
bot
h
instrum
ents
by
r emov
ingtheha
n dle
disc
deca
l
s
and
thehan
dlemounting
sc
r
ews
.
2
.
R
e
m
oveth eretai
ningscrew
f
ro
mth
erea
r
o
fth e
casesandseparatethein
st
rumen
tsfro
mth
eir
cases
.
3
.In
stallthe ce n
termountin
gbrac
k
et assh
ow
n
i
n
Figure600-4
a ndsec
u
re
i ttot
h emountin
g
pan
elusingthenuts
prov
i
ded
.
4
.In
sta
ll
t
h
e clamp
screwinth
e centermounting
brac
ketusingthe
nu
ts
and wash
ers
provided
.
5
.In
sertth
efro
n
t
ofthein
strument
casesth roug
h
theope n
ingsont
h e backsideofthemountin
g
panel
.Makesurethe
cases'
h andlem
ountin
g
bosses
areinserted in toth e c
l
amp hole o
fth
e
centermountin
g bracket
.
6
.Tightentheclampscrews
.
7
.
In
stallthesidem
oun
t
ingbracketsand
secure
t
h emtoth
efront
panelus
ingt
h enutsprovided
.
8
.Insta
l ltheh
andlemountingscrewsthroug
hth
e
sidebracketsintothehandlemounting b
osses
.
Don't
ove
r
tighte
nthese
screws
.
9.Slidethein
strumentsthroug
hth
emount
in
g
panela
n din
totheircases.Installa n
d
t ighten
the retainingscrewatth
e rea
r o
f
bot
h
cases
.
600-15
.
PROBE
ACC
E
SSORIES
600-16
.The
probe
accessories
areshowninFigu
re
600-
5 a n d are
described
inthefo
ll
owi
ngparagraphs.Tab
l
e
600-1
contains
all
applicable
specifications for the
probes
.
600-17
.Touch-
H
ol
d
P
robe80T-
Η
ACCESSORIES
PROBE
ACC
E
SSORIES
600-18
.The
80T-Ηis
α direct
sig
nal-th
ro
u ghtestprobe
w
i
thα to u c h a
nd hold f
eature.To
u c
handHo
l
dall
ows
voltage,
resistance,
a n
d
co
ndu
cta n ceread
in gs tobehel
d
ontheDMM
dis p
layfollowingth
emeasureme nt.Thi
s
conveniencealsoallows
greatersa
fety
becauseth e
op
erator
canconcen
trateont
hepl
acementof t
h e
p
r
obe
andreadthedisplayl
ater.T
h e
To
u c
hand
Holdfeature
i
s
activatedbyαpus
h buttonl
ocatedont
h
e p
robe
.Pressing
t
hi
spushbutto nholdst
h epresent
readingont
h
e
DMM
d
i
splayuntilth
e
pushbu
ttonisreleased
.
F
igureβ00-4
.RackMountingKit,
Side-by-SideMounti
ng
600-
3
Page 76
ACCESSO
RIE
S
PROBE
ACCESSORI
ES
600-19
.Temperature
Pro
b
e,
Celsius80T-150C
600-20
.
Th
e
80T-150C
Tempe r
atureProbe converts
yourinst
rumen
t into
α
d
i
rect-
r
eading(1m
V
dc;degree)
Celsius
thermometer.itis
suited
for
s
urf
ace,
ambient,
and
some
liq
ui
d
m
easu
r ements
.
Α
r
u
gged,fast-
r
espo
nd
in
g
probeti
350Vdo
standoffcapa
b
ilitym
ak
es
the
80T-150Cαversatile
andeasy-to-use temperaturepr
obe
.
600-21
.Temperature
Prob
e,Fahrenh
eit
80T-1
50F
600-22
.
The8OT-15OFis
theasthe
8OT-150C
except t
he
8ΟΤ-15OFis
settoread
in
degrees F
ahre
nhei
t
.
600-23
.Cu
rrentTransformer80Ι
-600
600-24.TheModel80
Ι
-600
C
urren
tTra
nsform
er
exte
ndsthe
m
axi
mum
2
Α
ac cu
rrentmeasur
inglimi
t
o
f
t
he
8050
Α
to
αmax
imumof
600A.The
clamp-on
tra
ns
former
desig
nall
ows
m
easuremen
tstobemade
withoutbrea
kin
g
t
h
ec
ircuitun
der
test
.
Beca
u
se
ofα
high-
efficiency,
quadratu
r
e-type
ofwinding,
wire size
and
locatio
n o
f t
he co
ndu
ctor
w
ith
i
n
t
he
transformerjaws
do
not
affect
t
he accuracy
o
fthe cu
rrent
m
easurement.
600-25
.CurrentS
hunt80J-10
600-26
.T
he
M
odel80J-10
Curre
n
t
S
hun
t
exte
ndsthe
current
m
eas
ur
in
g
capability
ofyo
ur
m
eter
to
10
Α
cont
inu
ous (20
Αfor periodsnot
exceedingIminute) dc
to
10
kHz
at
an
accuracy oft
0.25%ο
.
600-27
.
H
ighVoltageProbe80Κ-6
600-28
.
Th
e
M
ode
l
8ΟΚ-6
High
Vol
tage
Pr
obe
exte
nds
t
h
e
vo
l
tagemeas
ur
in
g
cap
ab
ili
ty
ofyourmeter
upto6kV
.
In
ternally,
thepr
obe
con
tainsα1000:1divider.The
divider
ismade
wit
h
s
p
ecia
l
m
etalfilm
resistors
wit
h
m
atc
hedtemp
erature
coefficien
ts,providing
t
he probe
withexcellent
accuracy andstabilit
y c
h
aracteristics.Also,
thevery
high
inputimp
edance
(75ΜΩ)
minimiz
es
circuit
l
oading,thuscontribu
tingtomeasurement
accuracy.Th
e
pl
astichou
sing providesfor
operator safety
w
hil
e
m
easuring potent
i
ally
da
nger
ous
voltages
.
600-29
.
H
ighV
oltageProbeSOK-40
600-30
.
Th
eModel80
Κ
-40High
V
oltage
Probe
extends
the
voltage
m
eas
ur
in
g
capability
ofyo
ur
meter
upto40
k
V
.Internally,
theprobe
con
ta
in
sα1000:1d
ivi
der.T
he
d
i
v
i
der
is
m
ade
wit
hsp
ecia
l
m
eta
l
film
res
i
stors
wit
h
m
atchedtemperature
coe
ffi
c
i
e
n
ts,
prov
idin
g
theprobe
withexcellentacc
u
racy
andstab
ili
ty
c
h
aracteristics.Also,
the
veryhig
h
inputim
pedance
(1000
ΜΩ
)
minimiz
es
circuit
loading,
thus
con
tributing
tomeasu
remen
t
accu
racy.
T
he
pl
astichousing
prov
i
desfor
operator
safety
w
hil
emeasu
ringpotentially
da
ngerou
s
voltages
.
600-31
.RFProbe83RF
600-32
.
The 83
RF
con
verts
t
he 8050
Α
into
αhigh
frequen
cy,
100
kH
zto100
MHz,
ac
voltmeter
over
α
600-
4
voltage
r
ange
of0
.25
V
to
30Vrms.TheDC
output
oft
h
e
p
ro
b
eiscalibr
ated
tobe
eq
ui
valent
to
the
rms
value ofα
si
n
e
wave.T
he pr
obe
is
used
withtheDCVfunctio
n
a
n
d
r
anges of
the
8050Α.
600-33
.
RFPro
be
85
RF
600-34
.
T
he 85RF con
verts
t
h
e
8050
Α
in
to
αhigh
f
requency,
ΙΟΟ
kHz
to
500
MHz,
ac
voltmeter
over
α
voltagera
ngeof
0
.25
V
to
30
V
r
m
s.T
he do
output
o
fthe
p
robe
is
calibratedtobe equ
ivalen
t
to
the
rms
value
ofα
sin
e
wave
.
The probe
isused
wit
hthe
D
C
V
function
a
n
d
r
anges
o
f
t
he
8050Α.
600-35
.
DC/AC
C
urr
e
ntPr
obeΥ8100
600-36
.
TheModelΥ
8100DC/
AC
Cur
rent
P
robeisa
battery-
p
owered(fourAA
cells)
Hall-Effect
pr
obefor
u
se
w
iththe
8050
Α
to ta
ke
dc,
ac,
or composite
(ac
or dc)
cu
rrent
m
easurements.The
clamp-onjawsontheY8100
allow
ittoclamparound
conducto
rsupto3/4-inc
h
in
diameter.T
h
episto
lshap
e
allows
safe,
easy,one-
han
d
operatio
n
w
hen
makin
g cu
rre
n
tmeasure
m
en
ts.T
he
Υ
8100
h
as
detach
able
leads
andisusedincon
junct
ion
w
iththevol
tage
inpu
ts
o
f
t
h
e
8050Α.
600-37
.
ACCurrentTransformer
Υ
8101
600-38
.
The
ModelΥ8101
C
u
rrent
Transformer
(Figure
1)isα
s
mall
clamp-on
cu
rrent
tra
ns
form
er
designed
to
extend
t
he cu
rrent
measuring
capability
o
f
an
ac:cu
rrent
m
eterupto
150Α.Αclamp-on
coildesig
ned
in
to
t
he
p
robe
allows
m
easu
rementsto
bemade
without
breaki
ng
t
h
e
circuit
under
test.This
coil
servesast
hesecon
dary
ofα
1
:1000
tran
sformer.T
he cu
rrent-carrying
con
ductor
beingmeasured
serves
as
thepr
im
ary
.
600-39.Deluxe
TestLeadSet
(safety
desig
ned
)
Υ
8134
600-40
.
Th
eModelΥ
8134Deluxe
TestLead
Set
inclu
des
twoprobeswithshar
p
t
ip
s,
two
a
lli
gator
c
lip s,
two
s
p
adelugs,
andα
s
pring-l
oadedhoo
ktip
.
Banana
plu
gs
are
recessedinaninsulating
shield
.Probes
conta
in
finger
guardsfor
addition
a
l
p
rotection.
600-41
.Slim-Flex
TestLeadsΥ8140
600-42
.
Th
eModelΥ
8140
TestLead Set
(Figure 1)
con
sists
o
f
one
red
andoneblack
60-inch(1.52meter)
test
lead,
eachwithα
standard
banana
plu
gononeendan
d
an
exte
ndibl
e
t
ip
probe
on
the
other
end.This
flexible
m
eta
lli
c
tipcond
uctor
m
ay
be
extended
up
to
2-1
./2
inch
es,and
isinsulatedtowit
hin
1
/
10
o
faninchofi
ts
t
ip
.
T
hisinsulati
o
n reducesthe chanceof
creating
an
in
adverten
t s
hort c
ircui
t
w
hil
e
u
s
in
g
t
he probes
inthe
i
r
exte
n
ded
configuration.Alth
oug
hthe
Υ
8140
test
leads
areintendedformeasu
ring
vo
l
tages,
t
hey
m
ay
also
be
u
sedfor
m
easuring
lowcurrents
.
Page 77
ACCESSORI
ES
PROBE
ACCESSORIES
TO
UCH
H
OLDPRO
BE
Υ
8133
TE
STLEAD
SETS
T
EMPERATURE
PROBE
S
H
IG
H
FREQUEN
CY
PROBE
S
80
Κ
-40
C
URRENTMEASUREMEN
TDEVIC
ES
H
IG
H
V
O
L
TAG
E
PROBE
S
Figu
re
600-5
.ProbeAccessories
600-5
Page 78
ACCESSORIES PROBE
ACCESSORIES
600-
6
Table
600-1
.
Probe
Accessories
Specifications
80Τ-ΗTOUCH-HOLD
PROBE
VoltageRatings
TIP
TO
COMMON
.
. .
. . . ...
. ... .
. ... .
1000V
do
or
peakacm
aximum
COMMON
TO
GROUND
. . . ... ... ... .
60Vdoor
42V
peak
ac
maximum
Input
Capacitance..
. . . ... ... .
.
.
. .
. ... .
150
pF
maximum
L
ead
Resistance
. . ...
. .
. . . ...
. ... . ...
. .0.50
maximum
80T-150C
AND
SOT-150FTEMPERATURE
PROBES
R
ange
(°C/°F)
. . . .
. . . . . . .
. .
. . . . . .
. .
. . . . . .
.
50°Cto+150°C/-58
°
Fto302°F
Accuracy....
. ..... . . .
. ...
. ... ... ... ...
f1°C
(1
.8°F)
from
0°C
to
100°C,decreasing
linearly
to
t3°C(5
.4°F)
at
-50°Cand
+150°
C
Sensitivity...... ...
. ... .....
. .
. .
. .....
1
mV
dc/°Cor °
F
Resolution....
. . . ... . . . . . ... ... ... ... . .0.1°C
or 0.1°F
recommended
maximum
V
oltage
Standoff
. ... . . . . . ...
. .
. ... ... . .
350Vdo
or p
eak
ac
Power...... . . ..... ... ... ...
. .
. . . . . . ...Internal
d
isposable
b
attery;1
.000
hours
of
continuoususe
80Ι-600CURRENT
TRANSFORMER
R
ange
. ...
. ...
. . . ... ... . . ... ... ... ... ..1 to
600
Α
ac
Accuracy
. ..... . . ... ..... .....
. ... ... ..t3%
F
requency
R
esponse
.
. ...
. . . ... .
. ...
. ..30Hzto1kHz,10kHz
typical
Division
Ratio.... ... ..... ... . . . ... ...
.
1000
:1
WorkingVoltage
. .
. . . ..... ... . . . ...
. ...
750Vιmsmaximum
Insulation
DielectricWithstand
Voltage.5kV
M
axImum
Conductor
Size..
. ...
. ... ...
.
2-inch
diameter
80J-10
CURRENT
SHUNT
Shunt.... ...
. .....
. ...
. ...
. ...
. ... .
. . .10ampsat100
mV
Accuracy
(18°C
to
28°C)
DC
TO
10
KHZ.. . . . . .
. ...
. ...
. ...
. ..±0
.25%
10
KHZ-100
KHZ...
. ... . . .
.
. ... ... .
.Risingto1dBat
100
kHz
typical
Temperature
Coefficient. ...
. . . .
. ...
. ..0
.005%/°C
Inductance...... ...
. . . .
. ...
. ... ...
. ...8.3ηΗin
seriesω/0
.01Ωshunt
Overload.... .
. . ..... ...
. ... ... .
. ..... .Upto
one
minuteat20
Α
withα1/4 duty
cycle
forrecovery
aftercurrentsbetween10Αand20Α
Connects
to...... ...
. ...
. ...
. .
. ... ... .
3/4
inch
center
bananajacks
Connectors...... ... ...
. ...
. ... ...
. ... .
5-way
b
inding
p
osts
(red
and
black)
80Κ-6HIGH
VOLTAGE
PROBE
VoltageRange..
. ...
. . . ...
. .
. ...
. ...
. ..0to6
kV,doorpeak
ac
Input
Impedance
. ...
. ..... .
. ... .
... . . ..75
ΜΠ
(nominal)
Division
Ratio...... ...
. . . .
. ... ...
. ....1000
:1
Accuracy
DCTO
500
HZ.
.
. . . .
. ...
. . . ... ... ...
±1%
500HZTO1KHZ..... ...
. .
. . . .
. ....f2%
ABOVE
1
KHZ
... ..... ...
. ... ...
. ... .
Outputreading
falls.Typically,
30ο/οat10kHz
.
80Κ-40HIGH
VOLTAGE
PROBE
VoltageRange
...
. ... . . ... ...
. .
. ..... ..1kVto40kVdoorpeak
ac,28kV
rms
ac
InputResistance....
. ..... ...
.
.
. ...
. ...
1000
MO
Division
Ratio
. ..... ...
. ..... .
. ... ...,
.
1000
:1
Accuracy
Dc
(overall)
.
. ...
. ... ...
. ...
. .
20kVto30kVt2%
(calibratedat25 kV)
UPPER
LIMIT
...
. .....
. ...
. ... ...
. .
.Changes
linearly
from
2%at30kVto4%at40kV
L
OWER
LIMIT..
. .
.
.
.
...
.
. ...
.
...
. .
. .
Changes
linearly
from
2%at20kVto
4%
at1kV
Accuracy
Ac
(Overall)..
... .
. . . ... ...
. ..t5%at60
Hz
Page 79
Table
600-1
.
Probe
AccessoriesSpecifications
(cont)
ACCESSORIES
PROBE
ACCESSORIES
83RF
HIGH
FREQUENCY
PROBE
AC-to-DC
R
atio
. . . . . . . . . ... . . . . . ... ... .1:1
R
atio
Accuracy
(at1MHz
and
loaded
with10ΜΩ
)
A
BOVE
1
V..
. . . ..... . . ... . . ... ... ...t1dB
BELOW1V
... . . ... . . ...
. .
... . . . . . ...±1
.5
dB
FrequencyResponse
(Relativeto1
MHz)100
kHzto100
MHzt1
dB
E
xtended
Frequency
Response
. . . . . . ...Useful
for
relativereadings
from20kHzto250
MHz
R
esponse. ...
. ...
. . . .
. . . . ..... . . ... ...Respondstothe p
eak
valueofan
input
and
is
calibratedtoreadrms
valueofα
sine
wave
V
oltageRange..
. ... . ... ..... ..... . . . ..0
.25to30V
rms
M
aximum
Input
V
oltage.... . . ..... ... .
.
30V
rms,
200V
do
Input
Capacitance.. . . ...
.
. . . ...
. ...
. .
.Approximately3pF
Temperature
R
ange
O
PERATING
. . ... . . ..... . . ...
. .
. . . . .
+10°Cto+35°C
STORAGE
... . . ... . . ..... . . . . .
. .
. . . . ...
40°Cto+75°C
Humidity
. ..... . . ... ..... ..... . . ... ... .
<90
ο/οR.H
.
O
utput
Connector
..... . . .....
. . ... ... .Fits
standard 0
.75-inch
dualbanana
connectors
Accessory
..... . . .
. ...
. . . ..... . . ... ... .BNCtoP
robe
Adapter,
P/N
574756
85RF
HIGH
FREQUENCYPROBE
AC-to-DC
R
atio..
. ..... ..... ... . . ... ...1:1
R
atio
Accuracy
(At1MHz
andloaded
with10ΜΩ
)
ABOVE
0
.SV.. ..... ..... . . .
. ...
. . . . . .±0.5
dB
BELOW0.5V.
. . . . . ..... . . .
. ...
. ... ..±1
.0
dB
Frequency
R
esponse
(Relativeto1
MHz)100
kHzto100
MHz±.5
dB
'100
MHz
to200MHz±1
.0dB
'200
MHz
to
500
MHz
±3.0dB
'Referred
tohighand
low
inputsatprobe
tip
.
E
xtended
FrequencyResponse..
. ... ...Useful
forrelativereadings
from 20
kHz
to
700
MHz
R
esponse..... ...
. ..... ... . . ...
. ... ...Respondstothe
peak
valueofan
input
andiscalibrated
toread
rms
valueofα
sine
wave
V
oltageRange.. ... . . ...
. .
. . . ...
. ...
. ..0
.25to30V
rms
M
aximum
InputVoltage.. ..... .....
. . ..30V
rms,
200Vdo
Input
Capacitance..
. ...
. ...
. .....
. .
. .
.
Approximately3pF
Temperature
R
ange
O
PERATING... . . ... . . ...
. ...
. . . .
. ..+10°Cto+35°C
STORAGE
.
. ... .....
. ... . .
. ...
. ... ...
-40°Cto+75°C
Humidity....
. ... ...
. ..... . . ..... ... ...
<90%R.H
.
O
utput
Connector... ..... . . ..... ... ...Fits
standard0.75-inch
dual b
anana
connectors
Accessory
...
. .
... ...
. ...
. .....
. ...
. ...
BNC
to
Probe
Adaoter,
P/N
574756
Υ
8100
DC/AC
CURRENT
PROBE
R
anges
....... ...
. ...
. ..... .....
. ... ...20Α
ac
o
r
d
o
200A
ac or
dc
R
atedOutput..
. ... . . ..... ..... ... .....2Vat
fullrange
Accuracy
DCTO
200
HZ
....... ...
. ..... ... ...
t2°/οof
range
200
HZTO1KHZ. .
. . ..... ...
. ...
. ..<100Αaddt3°/οreading
>100Αaddt6°/
οreading
Calibration
Cycle.... .....
. .....
. ... ...1year
FrequencyResponse
. .....
. ... . . ...
. ...doto1.0kHz
R
ecommended
Load
...
. ..... .....
. ....;?G
.0
k
Ω
TemperatureRange....
. ...
. ..... . . ....+15°Cto+35°C;forspecified
accuracy
-10°Cto+50°C
;
storage
andoperationatreduced
accuracy
.
6οο-7
Page 80
ACC
E
SSORIES
PR
OBEACCESSORIES
Table
600-1.Probe
Accessories
Sp
ecifications
(con
t)
H
eating
L
i
m
itation....
. . . ..... ... . ... . . .Prolonge
d
o
p
eratio
n ab
ove200Αac or1kHz
can
cau
se
d
amage
to
t
h
e Y81 00
.
W
o
rkingVoltage
R
ating..
. . . . . . . .
...
. .
.
Core
tooutput;
600
V
do o
r
480Vac maximum
outputtoground
;
42Vdoor30V
ac
Aperture
Size
. .
. . . ...
. ...
. . . .
.
. ... . . ...
3/4-inch
(19
mm)
dia
m
eter
Size-Overall..
. ... ..... ..... .
... . ... ...
9"
χ
4-1/2"χ1-7/16"
(230
mm
χ 115 χ37mm)
W
eig
ht.
.
. ..... . . . ..... . . ... ... . . ... ...
14 o
un
ces
(0 .4 kg),
wit
h
b
atteries
Power
. ... ... ... . . . . . ..... . . . .
...
. . . . . .
FourAAcells
BatteryLife
...
. . . . . . . ..... . . .
. ...
. .....Alk
ali
ne 20hours
co
ntinuous
Υ
8101
ACCURRENTTRANS
FORMER
C
urrentRa
n
ge
.
. ... ... . . .
.
. . . ...
...
. .
. .2Ato
150A
ACC
UR
ACY,
(48Hzto10kHz). . ... ... .
±2%,
10Ato150A
±8%,2Ato1
OA
Division
Ratio
. . . ... . . . .
. . . ... ... . . ... .
1000
:1
W
o
rkingVoltage
. ... ... . . ...
. ...
. . . . ...
300
Vacr
m
smaxim
um
Insu
lation
Dielectric
W
ithstandV
oltage.
3 kVrms
M
aximumcon
du
ctorSize... ..... ... ...
7/16-inch(1.11
cm)
Page 81
601-1
.
INTRODU
CTIO
N
60Ι-2
.
T
h
e
Option8050Α-01
re
pl
aces
the
standard
8050
Α
power
supply
withαp
ower
supp
lyth
at
w
ill
operate
from
eitherrech
argeable
batteriesorlinepower
.Ifthe
b
atteries
are
full
y
c
h
arged,
your
8050Αwi
ll
op
eratefor10
h
ours
(typical)
before
the
batteries
mu
stberecharged
.
601-3.S
PECIF
ICATIONS
601-4
.T
he spec
ifi
catio
ns
f
or
the8050Α-01
are
give
n
in
Table
601-1.All
other
s
pec
ifi
cations
are
e
quival
entto
t
hosegi
venfor
t
he
8050
Α
in
Section1of
thismanua
l .
601-5.O
PER
ATIO
N
WARNING
DO
NOTOPERATEYOUR
8050Α-01WIT
H
ΤΗΕ
B
ATTERI
ES
REMOVED.
601-6
.Operatio
no
f
an
8050Α-01
differsintwo
respects
f
ro
m
ope
rati
on
of
α
standard 8050Α-
batterycharging
and
t
he
BT
a
nnunc
i
atoronthedispla
y.W
henthe
BT
-01
Optio
n
R
ec
h
argeable
B
attery
O
p
tion
Table
601-1
.
BOSOA-01
Specifications
a
nnunci
ator
appears,onthe display
during operation,
m
easurementaccuracymay
deteriorate
beyond
thelimits
s
pec
kedin
Section1
.
Ifthe
BT
a
nnunci
ator
appears
a
nd
youst
ill
n
eed
tomake
add
iti
on
a
l
m
easu
rements
before
rec
harg
in
g,
set
t
he P
O
WER
switchto
the
O
FF
position
f
or α co
upl
e
o
f
minu
tes,
t
hen
set
t
he
P
O
W
ER
switchbac
k
to
theON
p
osition.
Ifthe
BT
a
nnunci
ator
doesnot
appear
immedi
ately,yo
u have
at
least
two
minu
tes
o
f
in-
specificatio
n o
p
eration.
Ifth
e
BT
a
nnunci
ato
r a
pp
ears
imm
ed
i
ately
after
t
he P
O
W
ERswitch
i
s
set
backto
t
he
ON
p
osition
,none
o
fthe
m
easurementsshould
be
accepted
as being
wit
hinthespec
kedlimi
ts..Normally,
w
henthe
BT
a
nnunci
ator
appears,
recharge
thebatteries
as
soonas
poss
ibl
e
.
601-7
.To
rec
hargethe
batteries,
connect
the8050Α-01
to
lin
e p
ower
and
set
t
he P
O
W
ERswitch
to
theO
FF
position.
Ifthe
P
O
WER
switc
h
i
s
settothe
ON
p
osit
ion
,
t
he b
atteries
receiveαredu
cedcharge
thatissu
fficient
to
m
ainta
inthe
i
r
c
harge
l
eve
l
bu
tinsuffi
cientto
charge
t
he
batteries to
αhig
h
er
level.
8050Α-01BATTERY
OPTION
:
B
ATTERIES:
TYPE
:NiCAD
OPERATING
TIME:10hou
rs,typ
ical
RECHARGE
TIME:(withPOWER
switchinOFF
p
ositio
n
) :
14hoursfor
full
cha
r
ge
P
O
WER
CONS
UMP
TION:6W
max
.
L
INEVOL
TAGE:90-264
V,47-440
Hz,
fiel
dchan
geable
STANDARDS
:IEC
348:Pr
otection
Class1w
hen operatedfrom
su
pplymains
Pr
otectionClass2w
hen operatedfrominternal
b
atteries
601-1
Page 82
O
P
TIO
NS
RECH
ARGEABLEBATT
ERY
(-01
OPTION)
601-8.THEO
RYOFOPER
ATIO
N
60ί-9
.The
t
h
eory
o
f
o p
eratio
n
o
f t
h
e
8050Α-0ίis
i
llu
strated by
t
he
main
p
cb
sc
h
ematicinSectio
n 7
.
T
h
e
battery
powe
r s
uppl
y(ss
hown
below
thestandardpowe
r
s
uppl
yonSheet1o
f t
h
e
sc
he
m
at
i
c.The8050A-0I
can
be
u
sed
wit
h
lin
e
voltagefrom90
Vto264V,47to
440
Hz
.
(To
select
theproper
line
voltage
co
nfiguration,ref
er to
the
8050Α-01
AC
LineVol
tageprocedure,
give
n
l
ater
in
t
hi
s s
u
bsection.)Fuse
F3 p
r
ovidesprotectio
n
f
or
the
p
owe
r suppl
y
.
Lin
e p
ower
i
npu
t
is r
ectified,
fil
tered,
and
regulated.The
output
o
fth
e
p
ower
sup
ply
actsasa
current
sourcefor
t
he
battery.Theb
attery
deter
min
es
t
h
e
voltage
level
into
t
he
p
owerconverter.Do
not
operate
t
he
8050Α-01
wit
hth
e
battery
removed
.
T
hep
ower
converte
r
u
ses
theflybacktrans
form
e r
techniquetodevelop
severa
l
o
utpu
t
voltagessothat
+13V,
-10V,
+6
V
,
and-5V
(wit
h
respect
topower
s
upp
l
y commo
n)
are
ava
ilabl
e
.
609-10
.
W
hen
t
he
b
attery
voltage
drops
below
app
roximately4V,
theBT
a
nnun
ciator
a
pp
ears
inth
e
displa
y
.
601-11
.MAINTEN
ANC
E
6
.
R
eplace
thebatter
i
es (and
blotting
papers)
wit
h
new
Flu
ke
battery
asse
m
b
lies
.
7
.
R
econnect
t
he
battery
casestotheMain P
C
B
Asse
m
bly.
8
.
Con
n
ect
t
he b
attery
wirestotheir
appropriate
pin
s
on
t
he
main
p
cb,
w
ith
r
edto+
andblackto
9
.
R
ei
n
sta
ll t
he
instrumen
tinits
case
.
601-14
.Fu
seRep
lacement
601-15
.
U
se
t
he
f
ollowing
pr
ocedure to
replace
thema
in
powe
r
fu
se,
F
3
:
1
.
Complete
t
h
e
Calibratio
n Access
p
r
oced
u
re
give
n in
Section4 o
fthi
sma
nua
l .
2
.
F
3islocated
immediately
in
f
ront
o
f t
h
e
power
receptacle
.
α
.
F
or
100
V
a
n
d
120
V
in
strumen
ts,
replace
F3
withα
1 /16Α,250V,
ty
pe
MDL
fu
se
.
b
.
F
or
240
V
in
strumen
ts,
re
pl
ace F3
withα
1/32A,
250V,
ty
pe
MDL
fu
se
.
8050
Α
-01 L
i
neVoltage
Selectio
n
U
se
t
he
f
ollowingproceduretocha
ngethe
g
ac
lin
e
voltageonthe8050Α-01
:
Complete
theCalibration
Accessproced
u
re
give
n
in
Section4o
fthi
sman
ual.
L
ocate
t
he aclinesel
ection holesont
he
M
a
in
PCB
Assembly.(Thewhite
wirefro
mth
e
p
ower
receptacle
wi
ll
be
soldered
inone o
f t
he
h
oles
.)
Re
l
ocate
thewhite
wire(fro
mthe p
owe
r
receptacle)tothe
pcbhole
labeled
wit
hthe
inten
ded
voltage
.
R
einsta
ll
t
he
case
and
relabe
l
t
h
eac
line
voltage
designationon
thedeca
l
at
t
h
e
botto
mof
t
he
in
strument.
L
ISTOF
REP
LAC
EABLE
PAR
TS
Tables
601-2
a
nd 601-3li
st
replaceable
parts
for
Α
-01
.
Figu
r
es
601-1
a
nd 601-2 areth
e
co
mpon
ent
d
i
agramsfor
t
he
8050Α-01
.
WARNIN
G
THESESERV
ICINGINSTRUCTIONS
A
RE
FOR
USE
BYQUALIFIED
PER
SONNEL
O
NLY.TOAV
OIDELECTR
ICA
LSHOCK,
DO
601-16
.
NOT
PERFORM
ANY
S
ERV
ICINGOT
HER
THAN
THAT
CO
N
TAI
NE
D
IN
ΤΗΕ
601-17
.
O
PER
ATINGINSTRUCTIONS
UNLE
SS
YO
U
AREQ
UALIFIED
TO00
SO
.
o
peratin
1
.
601-12.BatteryRep
lacement
601-13
.Use
t
he
f
ollow
in
g p
rocedurefor
re
movin
gand 2
.
re
placin
g
batteries
:
1.Co
mpl
ete
the
Calibratio
n Access
pr
ocedure
give
n
in
Section4
o
f t
hi
sma
nua
l
.
3
.
2.Turn
theinstrumentupside
down.
3
.
Unplu
g
t
he redan
d
b
l
ack
battery
wires,for
4
.
bot
h
battery
packs,f
ro
mthe p
cb
pin
s
.
4.A
ppl
y p
ressure
to
t
he
fron
tandrear
sides
o
f t
he
battery
casestodisconn
ect
the
cases
f
ro
mthe
601-18
.
M
a
in
PCB
Assembly
.
601-19
.
the805
5
.
Re
m
ove
theblotting papers
.
locatio
n
Page 83
Table
601-2
.
80SOA-01Final
Assembly
Ν
0
Τ
O
P
TIONS
RECHARGEABLE
B
ATTERY
(-01
OPTION)
601-
3
REF
D
E
S
DE
SCRIPTIO
N
9050ΑFINAL
ASSE
MBLY
WITH
BATTERY
OPTION
I
FLUKE
SΝΟΚ
8050
Α
Ι
MFG
I
SPLY CODE
WITH
BATTERY
OPTION-01
TOT
QTY
R
E
C
QTY
FIGURE
601-1
(805ΟΑ-01)
Α
1
MAINPCB
ASSE
MBL
Y
1
871,872
BATTERY,
WIRED
SET
487975 89536 487975
2
F
1
FUSE,
F
AST-ACT,2Α
376582
71400 AGX-2
1
S
FO
R
EUROPEAN
USAGE
US
E
ΡΜ
460972
89536 460972
F2
FUSE,
FIB
RE
,3Α,600
V
475004 71400
BB
S-3
1
S
F3
FUSE.SI.D-
BLO
,
1/16
Α
163030
71400
MDL1-16
1
5
FOREU
ROP
EAN
USAG
Σ USE
1/32A,
3X20M
240V.
REPLACE
F
USECLIP
S
WITHRISE
.
RELOCATEWHITE
WIR
E
IN
240VHOLE
.
Ν
1
SCREW,
ΡΜ
,
6-32
Χ
1/4
385401
73734
19042
5
Η
2
SCREW,
ΡΙΡ
,
6-32Χ1/2
320051
89536
320051
2
Η
3
SCREW,
RHP,
4-40Χ114
256156
89536 256156
5
Η
4
SCREW,
TFD-
FORMING, 5/
20Χ
5/16
494641
89536
494641
4
Η
5
SCREW,SΕMS,
6-32Χ1/4
178533
89536
178533
3
Ν
6
SCREW.ΡΗΡ,6/32Χ3/8
288266
89536
288266
2
Η
7
WASHER,
ϋ6
FLAT
34050589536
340505
2
J
1
CABLE,
DISPLAY
INTERCOrNECT
507723 89336
307723
1
L
CD1
DISPLAY,LIQUID
CRYSTAL
307673
89536
507673
1 1
ΜΡ
1
BEZEL,
LC
D
479642
89536
47
9642
1
ΜΡ
2
BR
ACΚET,
LCD
471730
89536
471730
1
ΜΡ
3
BUTTON.SWITCH
(FUNCTION)
425900
89336
425900
4
ΜΡ
4 B
UTTON,
SWITCH
(GREEN)
510271
89536
510271
1
ΜΡ
5 B
UTTO
N
,
GRAY
(OFFSET)
510164
89536
510164
1
ΜΡ
6 B
UTTON,
SWITCH
(
RΑΝ
GΕ)
426759
89536
426759
6
ΜΡ
7
DECAL,
CSA
525527
89536
525327
1
ΜΡΒ CDH
hE
CTOR,ELASTOMERIC
453092
89536
453092
1
ΜΡ
9
FU
SE HOLDERASSEMB
LY
316039 89536 516039
1
TO
ORDER
FUSE
HOLDER
CAPONLY,
SEE
ΜΡ12
FOREUROPEANUSAGE
USEΡΜ
537076 89536 537076
ΜΡ10
ΙΝSΕ.SI
LICON
Ε
525139
89536
525139
2
ΜΡ
11
INSULATION
495044
89536 495044
1
Ι
1
Ρ
12
CAP,FUSEHOLDE
R
1
(FORSEPARATE
ORDER)
TOORDER
COMPLETE
ASSIEMBLY,
SEE
11P9
P/N
.
ΜΡ13
DECAL,
DISC
(ON
HANDLE)
478248
89536
478248
2
ΜΡ14
PANEL,
FRONT
.
510156
89536
510156
1
MP
IS
RECEPTACLΣ#
AC 47
1029
89536
471029
1
ΜΡ
16
RETAINER#
FLEX
510198
89536
510198
2
ΓΡ17
SH
IELD,
INSULATOR 516021
89536
516021
1
ΜΡ
18
SHIELD,
MAIN
510172
89536
510172
1
MP
19
SHIELD,
TOP
310100
89536
510190
1
ΜΡ
20
INSULATOR
50196
89536
523196
1
ΜΡ
21
DECAL,
FRONT
PANEL 508465
89536
508465
1
ΜΡ
22
CASE,
EXTERIORPLASTIC
47W08
89536
478008
1
ΜΡ
23
ΗΑΝρΙ.Σ
,
MO
L
DED
330092 89536 330092
1
ΜΡ
24
DECAL
.
SPECIFICATION
507665
89536
507"5
1
ΜΡ
25
TESTLEAD
W/
PRO
BE
(Υ
8132)
516666
89536 316666
1
ΜΡ26 LA
B
EL,
"Ca
u
tion"
534487
Μ
36
534487
1
ΜΡ
27
PAD,
BATTERY
ΑΘ
S
ΟRΒΑΝΤ
483610
89536 483610
2
2
Μ
13
28
RETAINER,
BATTERY
471052
89536
471032
2
rΙΡ29
GRO
TET
(U
S
E
D
IN
SHIPMENT)
501593
89536
501593
1
ΜΡ
30
DECAL,
F
ACTORYMUTUAL
524611
89536
524611
1
1113
31
JUMPER
ASSY
.
(FO
R
U5)
537514
89536
557314
1 1
ΜΡ
32
JUMPER
ASSY
.
(FORU33)
337=
89536
337=
1
1
ΜΡ
33
80Χ.UNIT
SHIPMENT
697821
89536
697821
1
ΜΡ
34 BOX
LINER
72310
89536
7231=
1
μ
l
L
ΙλΕ
CO
RD
343773 89536
343723
1
Till
INSTRUCTION
MANUAL
(8050Α)
330907
89536
530907
ι
RECOMIM
EDΦ
SPAREPARTS
KIT
(8050Α)
533919 89536
333919
AR
Page 84
O
P
TIONS
RECHARGEABLE
B
ATTERY
(-01
OPTION)
601-
4
F
ig
ur
e
601-1.80
ΒΟΑ
-01
F
inal
Assem
b
ly
Page 85
ο
ι
B
ezel
Sectio
n
ΜΡ
3
ΜΡ
6
SIDEVIEW
ι
ο
Η
4
οσ
M
P4
M
P8
M
P5
FRON
TVI
EW
Figureβ01-1
.
805ΟΑ-01Final
Assembly
(cont)
O
P
TIO
NS
RE
C
HARGEA
BLEBATT
ERY
(-01
OPTION)
ΒΤ
1
ΒΤ
2
80SOA
4011
601-
5
Page 86
O
P
TIONS
RECH
ARG
EABLEB
ATTERY
(-01
OPTION)
CAUTIO
N
®
SUBJECTTODAMAGE
BY
STATIC
ELECTRICITY
601-
6
Fig
ur
e
601-1.8050Α-01
F
inal
Assembly
(cont)
Page 87
Table
601-3
.
Α
1
M
ainPCB Assembly
O
P
TIO
N
S
RECHARGE
A
BLEBATTERY(-01
OPTION)
601-
7
R
EF
DES
Α
1
D
ESCRIPTIO
N
MAIN
PCB
ASSEMBLY
F
I
GURE601-2(8050Α-4011
ΑΑΙ
)
I
FLUKE S
Κ
NO
.
Ι
MFG
I
SPLY
COOS
W
M
BATTERYOPTION
-01
TOT
QTY
Ό
QTY
IRECI
Τ
1
2
C1
CAP,
VAR,1-"
.23
PF
.
2000
V
218206
72
Μ
530-000
2
C2
CAP,
VAR,
1-5-0
.25
PF,
2000
V
218206
7Ζ982
530-000
REF
ρ
CA
P
,
MICA,
120
PF
+/-5Χ.
500
V
148486
72136
OM15F121
J
2
C4
CAP,MICA,
120
PF
+/-5Χ,
500
V
1418486
72136
DM15F121
J
REF
C5
CA
P
,
MICA,
1800
PF
+/-5Χ.
500
V
148353
89536
148353
1
C6 CA
P
,
ΡΟLΥΡRΟΡ,10
OF+/-10Χ,
100
V
446781
89536
446781
1
C7
CAP,
Ρ
OLYEST.1.0OF+/-10Χ.
100
V
4478
Φ
37445
C29
W
W
ΑΙΜ
1
C8
CAP,
TA,
10
OF+/-20Χ,
15
V
193623
56289
1960106Χ
0015
Α
1
4
C9
CAP,POLYPROP,.22
LF
+/-10Χ.
100
V
446799
89536
446799 1
C10
CAP,
POLYESTER,.022
LF+/-10
Χ
,
1000
V
448183
52763
MKT.1822
322/10 1
C11
CAP,
MYLAR,
.047
IF
+/-10Χ.
250
V
162008
73443
C280
ΓΙΑΕ
/Α
47
Κ
2
C12
CAP,
ELE
CT,
470
O
F
-10/+75Χ,
16
V
501510
89536
501510
2
C13
C
AP, E
L
ECT,
470
I
F
-10/+752,
16
V
501510
89536
501510
REF
C14
CAP,
TA,
10
lF+/-20Χ.15
V
193623
56289
-196D106Χ0015Α1
R
E
F
C15
CAP,7Α,22
LIF+/-20Χ.
15V
423012
56289
196
ΟΖΖ6ΧΟ
013ΚΑ1 1
C20
CAP,
ELECT,2.2LF
+/-20Χ,
50
V
6148
β
89536
614875
1
C21
CAP,
ELECT,
220
LF-10/+75
Χ
,
1
6V
435990
89536
433990
2
C22
CAP,
ELECT,
470
IF
-10/751.16
V
501510
89536
501510
1
C23
CAP,
ELECT.2200
IF-10/+75Χ,
16
V
474981
89536
474981
1
C25
CAP,CΣR,1000
PF
+/-20Χ.
100
V
149153
56289
C0238101FI03
M
3
C26
CAP,
C
ER,
1000
P
F
+/-20Χ.
100
Υ
149153
5δ289
C0238101F103
M
REF
C27
CAP,ΤΑ.2.2
LF
+/-20Χ,
20
V
161927
56789
1960226ΧΟ020ΗΑ1
1
C28
CAP,POLYPRO
P,
.047
1F
+/-10Χ.
100
V
4467
73
89336
446773 1
C29
CA
P
,
MICA*
180
PF
+/-5Χ.
500
V
148460
72136
DM15FIS
IJ
1
C30
CAP,
MICA,
68
P
F
+
Ν5Χ,50
W
148510
72136
DM15F680
J
1
ρ
1
CAP,MYLAR,.0
Φ
IF
+/-102
250
V
162008
73445
C280rΑΕ
/
ΑΦΚ
R
E
F
C32
CAP,
CERAMIC,1000
PF+/-10Χ,
500
V
357806
56289
C0168102G-102
Κ 3
ρ
3
CAP,
TA,
10
LF
+/-
20Χ,
13
V
193623
56289
196D106Χ0015Α1
R
E
F
ρ
4
CAP,EL.ECT,
47
I
F
-10/+75
Χ
,
16
V
436006
89536
436006 1
C35
CA
P
,
CE
RAMI
C.1000
PF
+/-10
Χ.500
V
357806
56289
C0168102G-10
ΖΚ
R
E
F
C36
CAP,
CERAMIC,
1000
PF
+/-10Χ,
500
V
357806
56289
C0168102G-10
ΖΚ
REF
C37
CAP, CER,
.025
IF
+i-
2οΧ.
100
V
168433
56299
C0238101Η
2s3
Μ
1
C38
CAP,
ELECT,
47
O
F
+/-20
Χ,10
V
613984
8953
6
613984
2
C39
CA
P
.
ELECT,
47IF
+/-20Χ.
10V
613984
69536613984
R
E
F
C40
CAP,
MICA,
330
PF
+/-3Χ.
ROW
148445
72136
DMISF331
J
1
C41
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10
L
F
+/-20
Χ
,
16
V
614859
89536
614939
2
C42
CA
P
,
TAP
10
IF
+/-
ΖΟΧ,15V
193623
56289
196DI06X0015A1
R
EF
C43
CAP.
CER,
1000
PF
+/-20Χ.
100
V
149153
56299
C0236101F103M
RE
F
C44
CAP.ΕLECTo
10
L
F
+/-20Χ.
16
V
614859
89536
614M
REF
C
L
1
DIODE.
FED.CURRENTR
EGΙATO
R
39'
.1454
07910
TC
R
5
Ζ
90
1
1
C
R
1
DIODE.
SI,RECT
IFIER
,ΖAMP,
50
VOLT
347539
140991Ν
5400
1 1
C
R
2
DIODE,
51,
LO-CΑΡ/LO-LEAs(
349177
07263
FD7223
3
1
CR3 DIODE,
SI,LO-CAP/LO-LEA
K
348177
07263
FD7223
REF
C
R
4 DIODE,RECT
IFIER
343491
01295
1Ν4002
1
1
CR5
.CR6 DIODE.
SI,HI-SPEEDSWITCHING
203323
07910
1Ν4449
2
1
CR12
DIODE,
SI,L
.0-CAP/LΟ
-LE
ΑΚ
349177
07263
FD
7223
R
E
F
DS1
DIODE.
LIGHT-EMITTING
(LED)
RED
4Ζ9
Μ
12040
NL55053
1
1
ΜΡ
1
SPRΣ
NG#
CO
MPR
ESS
I
O
NCOIL
422824
83353
C0240-026-0500-5 1
11Ρ2
SUPPORT,HY
BRI
D(Τ0
U32)
515635
89536
515635
2
Μ133
CLIP,
F
USE
485219
91833
3529
2
ΓΡ
4
HOUSING,
LED(Η
/DSI)
3=43
89536
5=43
1
ΓΡ
5
ΗΕΑΤSΙΝΚ
, (
W/U
26)
473785
89536
473785 1
ΜΡ
6
SUPPORT,RES
I
STO
R
345079
89536
345079 1
t
13
7
CLIP,
COMPONENT
316890 89536
516890
2
ΓΡ
8
SP
ACER,
SWAGED
30154
8953650
154
4
ΜΡ
9
SP
ACER,
STANDO
FF
295
Μ
89536
283
Μ
2
ΜΡ31
JUMPER
Α55Υ(FO
R
U
5)
4178"
Μ
07ΖCA-055
TSD
1
ΜΡ32
JUMPER
ASSY
(FORU33)
417311
30035
SS-109-1-04
1
81
XSTR.SI.
MPH
218396
89536
218396
3 1
82
XSTR.SI.
MPH
218396
89536
218396
RE
F
83
XSTR.SI.
ΝΡΝ
(
ΜΕΤΑΙ
3Ζ9698
89536
329698 1
1
84
XSTR.SIP
ΡΝΡ
225597
072632N425
0
2
1
Page 88
O
P
TIONS
RECHARGEABLE
BATTER
Y
(-01
OPTION)
601-
8
Table
601-3
.
Α1MainPC
B
Assembly
(cont)
REF
D
ES
D
E
SCRIPTIO
N
FLUKE
STOCK
ΝΟ
.
MF
G
S
PL
Y
MF
G PART ΝΟ
.
COD
E
TOT
QTY
RE
C
0
QTY
Τ
85
XSTR,SI.
ΡΝΡ
340026
047
131`Ρ
S6563
1 1
86
Χ5ΤΚ.S1.
MPH,
ΡΟΝΕ
R
477331
04713
MDS01
Α
1
1
87
XSTR.F
ΕΤ
370072
895α6
3700
72
2
1
88
XST
R
,
FET
370072
8953
6 370072
REF
010
XSTR.
SI.
ΡΙ
Ρ
195974
047
13
2Η
3906
2
1
811
XST
R.
SI.
ΡΝΡ
195974
047
13
2Ν
3906
REF
812
XST
R
.
SI,
ΝΡΝ
16872
6
0895367263
S19254
1
1
814 XSTR.SI.
ΡΝΡ
380394
380374
3
1
815
XSTR.SI.
ΡΝΡ
380394
89536
380394
R
E
F
016
XS7R.SI.
ΡΝΡ
215599
072632Η
4250
RE
F
817
XSTR.5Ι.
ΡΝΡ
380394
89536
380394
R
EF
818
XSTR.
SI.
MPH
218396
89536218396
REF
819
XSTR.
FET.DUALH-CHANNEL
419283
89536
419283
1
1
RI
RE
S,
COP,
100
Κ +I-10X4
109397
01121
681041
1
R
2
R
ES.ΝΝ.1000
+/-10Χ.2Ν
474080
89536
47
4080
1
R
3
R
ES,
MT
L
. FI
LM,
1000
+/-η,
1/10
Ν
514265
89536
314265
1
R
S
RES
.
CER,
100Κ+/-10Χ.
1/2
Ν
529099
895
U
529099
1
R
6
R
ES,VAR,100
+/-10Χ.
1/2
W
529115
89536
529115
1
1
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7
R
ES
.
VAR,
CE
R.
1
Κ
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Χ.1/2
Ν 513259
89536
313259
1
1
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8
RES.
CO
rIP
,
220Κ
+/-10Χ.2Ν
110197
01121
ΗΒ1011
1
R
11
R
ES,
VA
R
,
CΣΑ,
500
+/-10
Χ.1/2
Ν
447730
89536
447730
1
1
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12
R
ES,
CERMET.200
+/-102.1/2
Ν
47
497389536
47
4773
1
R
13 RES,RTL. FIL M,80.6
Κ
+/-1
Χ.1/8
Ν
281121
91637
CtF358062
F
1
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14 RES,DE
P
.
CAR,1Μ
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Χ.1/4
Ν 348987
80031
C11251-4-5131
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4
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15
R
ES.DEP.CAR,20+/-5Χ.
1/4
Ν
442202
80031
C
R
251-4-'9
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55901
1
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17
R
ES,MTL.FILM
90 +/
-0.1Χ.1/8
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91637
CT
F
35902
1
R
18 RES.
WW,9+/-
.15Χ.1Ν
461962
895U
461962
1
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19
R
Σ5,COW,
100Κ+/-5Χ.2Ν
28505
Β
89536
285
Μ
1
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20 RES,COW,Ζ.2
Μ
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.
1/2
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108225
895
U
285056
1
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21
R
ES.COMP,22Μ
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Ν
221986
01121
C82265
1
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23
R
ES,
00
.
CA
R
,
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W
348771
80031
C
R
251-4-W100
Ε 2
R
24
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0
rF,
4.7Μ
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114
Ν
220046
01121ε84755
4
R
25
RE
S,
DEP.CAR,12 +/-5
Χ.1/4
Ν 442178
80031
C
R
251-4-5ΡΙ2Σ
1
R
26
R
ES,
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Χ,1/4
Ν
441303
80031CΑ25Ι
-4-5Ρ9ΕΙ
1
R
27
R
ES.COMP,
10
+/-10Χ,
1/2
Ν
108092
01121
ΕΒ1001
1
R
28
R
β,DEP.
CA
R
.
1
Κ
+/-5Χ,
1/4
Ν
343426
80031
C
R
251-4-5ΑiΚ
1
R
29
R
ES.VAR, 1Μ+/-10
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.
1/2
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485052
89536485052 1 1
R
30
R
ES.DEP.CA
R.ΦΟΚ
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1/4
Ν
342ό34
80031
ε
R
251-4-5
ΡΦΟΚ
1
R
31
R
ES.COM
P
,
470
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E94711
1
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32
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S,
D
Φ
.CA
R
,
111
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Χ.114
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348
W
80031CΑ
251-4-5
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R
EF
R
33 RES,DEP.CA
R,1Μ+/-5Χ.
114
Ν
348
Μ
80031
C
R
251-4-5Α11
REF
R
35
R
β
,
HT
L
. FI
LM,59Κ
+/-1
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.
1/8
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261677
91637C1F555902
F
1
R
36
R
ES.DEP.CAR,15Κ+/-5Χ.
1/4
Ν 3
Α804
90031
C
R
251-4-51315
1(
2
R
37
RES,COMP,4.7
Μ
+/-5Χ,
1/4
W
220046
01121
C84M
R
E
F
R
38
R
ES,
DEP.CAR.15Κ
+/-=,
1/4
Ν
348854
80031
CR251-4-5Ρ15
Κ
R
E
F
Α
39 RES,1`Π'L.
F
I
LM.232
F ί
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Χ.1/8
Ν
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91637
C1F552323
1
R
40
R
ES
.
DEP
.
CAR,
680
+/-5Χ.
1/4
Ν
368779
80031
CR251-4-5Ρ680
Ε 1
R
42
R
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.
CAR
.27Κ
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114W
441501
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1
R
43
R
ES.DEP.
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+/-5Χ,
1/8
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80
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31
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R
251-4-5
ρ
750
Κ
1
R
44
R
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Page 89
Table
601-3
.
Α
1MainPCB Assembly
(cont)
OPTIO
N
S
R E
C
HA
RGEABLE
B
ATTERY
(-01
OPTION)
1
P
l
easebeaιwre of
voltage
changes
.
2Certain
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sag
notbe
u
se
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r
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U1
.ΡΜ510941
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501020
.
4U2Ρ/Ν510834
say
be
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inplace
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512905
.
601-
9
REF
O
E
S
DESCRIP
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N
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FLUKE S
NOOCK
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S
PLY
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447672
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V
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A7
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507707
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473736
2
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89536
47
3736
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ODEL)
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U21
I
C.OPERATIONAL
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609883
69536
609883
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83003
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ECT
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407289536
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Page 90
OP
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N
S
RE
CHA
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601-10
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ig
ure
601-2.Α1M
ainPCB
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8050Α-01
Page 91
O
P
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N
S
RECHARGE
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Figure β01-2.Α
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n PCB
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601-
1
1/601-12
Page 92
TA
BLEOFCONTEN
TS
Section
7
Sc
h
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Diagrams
FIGURE
7-1
.
TIT
LE
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. . . ...
. . . . ... . .
.
. ... . . . .
. . . . .
. . . . . .
. . . . .
. ...
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. . . .
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.
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. . . .
. .
. . .
. . . . .
. . . .
. . . . .
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7-3
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. . . ...
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. . . . .
. . . .
. . . . . .
7-6
Page 93
SC
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