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Tabl
e of
Con
tent
s
4 5 6 7 9 10 11 12 13 15 15 18 21 24 26 29 31 33
Title
Page
Ove
rvie
wU
npac
king
Insp
ectio
nS
afet
y In
form
atio
nR
ules
For
Saf
e O
pera
tion
Inte
rnat
iona
l Ele
ctric
al S
ymbo
lsTh
e M
eter
Stru
ctur
eR
otar
y S
witc
hFu
nctio
nal B
utto
nsD
ispl
ay S
ymbo
lsM
easu
rem
ent O
pera
tion
A
.DC
/AC
Vol
tage
Mea
sure
men
t
B
.DC
/AC
Cur
rent
Mea
sure
men
t
C
.Mea
surin
g R
esis
tanc
e
D
.Tes
ting
for C
ontin
uity
E.T
estin
g D
iode
s
F
.Cap
acita
nce
Mea
sure
men
t
G
.Fre
quen
cy M
easu
rem
ent
H.T
empe
ratu
re M
easu
rem
ent
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
1
35 37 38 39 39 39 40 40 41 41 41 42 43 44 46 49 52 55
Title
Page
I.Tra
nsis
tor h
FE M
easu
rem
ent
J
.EF
Func
tion
Ope
ratio
n of
Hol
d M
ode
RA
NG
E B
utto
nM
AX
MIN
But
ton
PEA
K B
utto
nD
ata
Out
putti
ngTh
e U
se o
f Rel
ativ
e Va
lue
Mod
eTh
e B
LUE
But
ton
Turn
ing
on th
e D
ispl
ay B
ackl
ight
Sle
ep M
ode
Gen
eral
Spe
cific
atio
nsA
ccur
acy
Spe
cific
atio
ns
A.D
C V
olta
ge
B.A
C V
olta
ge
C.D
C C
urre
nt
D.A
C C
urre
nt
E.R
esis
tanc
e
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
2
Title
Page 57 59 60 60 61 62 62 62 63 65 67
F
.Cap
acita
nce
G
.Fre
quen
cy
H.D
iode
Tes
t
I.C
ontin
uity
Tes
t
J.T
empe
ratu
re
K.T
rans
isto
r hFE
Mai
nten
ance
A
.Gen
eral
Ser
vice
B
.Rep
laci
ng th
e B
atte
ry
C.R
epla
cing
the
Fuse
sU
SB
and
RS
232C
Ser
ial P
ort
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
3
This
Ope
ratin
g M
anua
l cov
ers
info
rmat
ion
on s
afet
y an
d ca
utio
ns. P
leas
e re
ad th
ere
leva
nt in
form
atio
n ca
refu
lly a
nd o
bser
ve a
ll th
e W
arni
ngs
and
Not
es s
trict
ly.
War
ning
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
4
Exce
pt w
here
not
ed, t
he d
escr
iptio
ns a
nd in
stru
ctio
ns in
this
Ope
ratin
g M
anua
l app
lyto
all
Mod
el U
T61A
/UT6
1B/U
T61C
/UT6
1D/U
T61E
.
Unp
acki
ng In
spec
tion
Ope
n th
e pa
ckag
e ca
se a
nd ta
ke o
ut th
e M
eter
. C
heck
the
follo
win
g ite
ms
care
fully
to s
ee a
ny m
issi
ng o
r dam
aged
par
t:
Des
crip
tion
Ope
ratin
g M
anua
lTe
st L
ead
Poin
t Con
tact
K ty
pe T
empe
ratu
re P
robe
(UT6
1B a
nd U
T61C
onl
y)U
T61
Mul
ti-P
urpo
se S
ocke
t9V
Bat
tery
(NED
A160
4, 6
F22
or 0
006P
) (in
stal
led
insi
de th
e M
eter
)R
S23
2C In
terfa
ce C
able
(exc
ept U
T61A
)U
SB
Inte
rface
Cab
le (O
ptio
nal a
t ext
ra c
ost)
(exc
ept U
T61A
)In
stal
latio
n G
uide
& C
ompu
ter I
nter
face
Sof
twar
e (C
D-R
OM
) (C
ome
alon
g w
ith th
e R
S23
2C o
r US
B In
terfa
ce C
able
) (ex
cept
UT6
1A)
Item 1 2 3 4 5 6 7 8
Qty
1 pi
ece
1 pa
ir1
piec
e1
piec
e1
piec
e1
piec
e1
piec
e
1 pi
ece
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
5
In th
e ev
ent y
ou fi
nd a
ny m
issi
ng o
r dam
age,
ple
ase
cont
act y
our d
eale
r im
med
iate
ly.
Safe
ty In
form
atio
nTh
is M
eter
com
plie
s w
ith th
e st
anda
rds
IEC
6101
0: in
pol
lutio
n de
gree
2, o
verv
olta
geca
tego
ry (C
AT. I
II 10
00V,
CAT
. IV
600
V) a
nd d
oubl
e in
sula
tion.
CAT
III:
Dis
tribu
tion
leve
l, fix
ed in
stal
latio
n, w
ith s
mal
ler t
rans
ient
ove
rvol
tage
s th
anC
AT. I
V.
CAT
IV: P
rimar
y su
pply
leve
l, ov
erhe
ad li
nes,
cab
le s
yste
ms
etc.
Use
the
Met
er o
nly
as s
peci
fied
in th
is o
pera
ting
man
ual,
othe
rwis
e th
e pr
otec
tion
prov
ided
by
the
Met
er m
ay b
e im
paire
d.
In th
is m
anua
l, a
War
ning
iden
tifie
s co
nditi
ons
and
actio
ns th
at p
ose
haza
rds
to th
eus
er, o
r may
dam
age
the
Met
er o
r the
equ
ipm
ent u
nder
test
.
A N
ote
iden
tifie
s th
e in
form
atio
n th
at u
ser s
houl
d pa
y at
tent
ion
on.
Inte
rnat
iona
l ele
ctric
al s
ymbo
ls u
sed
on th
e M
eter
and
in th
is O
pera
ting
Man
ual a
reex
plai
ned
on p
age9
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
6
Rul
es F
or S
afe
Ope
ratio
nW
arni
ngTo
avo
id p
ossi
ble
elec
tric
sho
ck o
r per
sona
l inj
ury,
and
to a
void
pos
sibl
eda
mag
e to
the
Met
er o
r to
the
equi
pmen
t und
er te
st, a
dher
e to
the
follo
win
gru
les:
Bef
ore
usin
g th
e M
eter
insp
ect t
he c
ase.
Do
not u
se th
e M
eter
if it
is
da
mag
ed o
r the
cas
e (o
r par
t of t
he c
ase)
is re
mov
ed.
Look
for c
rack
s or
mis
sing
pla
stic
. Pa
y at
tent
ion
to th
e in
sula
tion
arou
nd th
e co
nnec
tors
.
Insp
ect t
he te
st le
ads
for d
amag
ed in
sula
tion
or e
xpos
ed m
etal
. C
heck
the
test
lead
s fo
r con
tinui
ty.
Rep
lace
dam
aged
test
lead
s w
ith id
entic
al
m
odel
num
ber o
r ele
ctric
al s
peci
ficat
ions
bef
ore
usin
g th
e M
eter
.
Do n
ot a
pply
mor
e th
an th
e ra
ted
volta
ge, a
s m
arke
d on
the
Met
er, b
etw
een
the
term
inal
s or
bet
wee
n an
y te
rmin
al a
nd g
roun
ding
.
The
rota
ry s
witc
h sh
ould
be
plac
ed in
the
right
pos
ition
and
no
any
chan
geov
er o
f ran
ge s
hall
be m
ade
durin
g m
easu
rem
ent i
s co
nduc
ted
to
pr
even
t dam
age
of th
e M
eter
.
Whe
n th
e M
eter
wor
king
at a
n ef
fect
ive
volta
ge o
ver 6
0V in
DC
or 3
0V
rm
s in
AC
, spe
cial
car
e sh
ould
be
take
n fo
r the
re is
dan
ger o
f ele
ctric
shoc
k.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
7
Do
not u
se o
r sto
re th
e M
eter
in a
n en
viro
nmen
t of h
igh
tem
pera
ture
,
hum
idity
, exp
losi
ve, i
nfla
mm
able
and
stro
ng m
agne
tic fi
eld.
The
per
form
ance
of th
e M
eter
may
det
erio
rate
afte
r dam
pene
d.
Whe
n us
ing
the
test
lead
s, k
eep
your
fing
ers
behi
nd th
e fin
ger g
uard
s.
Dis
conn
ect c
ircui
t pow
er a
nd d
isch
arge
all
high
-vol
tage
cap
acito
rs b
efor
e
te
stin
g re
sist
ance
, con
tinui
ty a
nd d
iode
s.
Befo
re m
easu
ring
curr
ent,
chec
k th
e M
eter
ís fu
ses
and
turn
off
the
curr
ent
to b
e te
sted
bef
ore
conn
ectin
g th
e M
eter
to th
e ci
rcui
t. A
fter c
onne
ctin
g
th
e ci
rcui
t rel
iabl
y, tu
rn th
e cu
rren
t to
be te
sted
on.
Rep
lace
the
batte
ry a
s so
on a
s th
e ba
ttery
indi
cato
r a
ppea
rs.
With
a
lo
w b
atte
ry, t
he M
eter
mig
ht p
rodu
ce fa
lse
read
ings
that
can
lead
to e
lect
ric
sh
ock
and
pers
onal
inju
ry.
Whe
n se
rvic
ing
the
Met
er, u
se o
nly
the
sam
e m
odel
num
ber o
r ide
ntic
al
el
ectr
ical
spe
cific
atio
ns re
plac
emen
t par
ts.
The
inte
rnal
circ
uit o
f the
Met
er s
hall
not b
e al
tere
d at
will
to a
void
dam
age
of th
e M
eter
and
any
acc
iden
t.
Soft
clot
h an
d m
ild d
eter
gent
sho
uld
be u
sed
to c
lean
the
surf
ace
of th
e
M
eter
whe
n se
rvic
ing.
No
abra
sive
and
sol
vent
sho
uld
be u
sed
to p
reve
nt
th
e su
rfac
e of
the
Met
er fr
om c
orro
sion
, dam
age
and
acci
dent
.
The
Met
er is
sui
tabl
e fo
r ind
oor u
se.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
8
Turn
the
Met
er o
ff w
hen
it is
not
in u
se a
nd ta
ke o
ut th
e ba
ttery
whe
n no
t
us
ing
for a
long
tim
e.
Con
stan
tly c
heck
the
batte
ry a
s it
may
leak
whe
n it
has
been
usi
ng fo
r
so
me
time,
repl
ace
the
batte
ry a
s so
on a
s le
akin
g ap
pear
s. A
leak
ing
batte
ry w
ill d
amag
e th
e M
eter
.
Inte
rnat
iona
l Ele
ctric
al S
ymbo
ls
AC
or D
CD
oubl
e In
sula
ted
War
ning
. R
efer
to th
e O
pera
ting
Man
ual
Gro
undi
ngD
efic
ienc
y of
Bui
lt-In
Bat
tery
Con
form
s to
Sta
ndar
ds o
fE
urop
ean
Uni
on
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
9
The
Met
er S
truc
ture
(see
figu
re 1
)
LCD
Dis
play
Func
tiona
l But
tons
Blu
e bu
tton
Rot
ary
Sw
itch
Inpu
t Ter
min
al:
figur
e 1
1 2 3 4 5
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
10
Rot
ary
Switc
hB
elow
tabl
e in
dica
ted
for i
nfor
mat
ion
abou
t the
rota
ry s
witc
h po
sitio
ns.
AC
and
DC
Vol
tage
Mea
sure
men
t
AC
Vol
tage
Mea
sure
men
t (U
T61D
onl
y)D
C V
olta
ge M
easu
rem
ent (
UT6
1D o
nly)
Res
ista
nce
Mea
sure
men
tD
iode
Tes
tC
ontin
uity
Tes
tC
apac
itanc
e Te
stFr
eque
ncy
and
Dut
y C
ycle
Tes
tTe
mpe
ratu
re in
Cel
sius
(UT6
1B a
nd U
T61C
onl
y)Te
mpe
ratu
re in
Fah
renh
eit (
UT6
1B a
nd U
T61C
onl
y)Tr
ansi
stor
(UT6
1A o
nly)
DC
A an
d A
CA
Mea
sure
men
tD
Cm
A an
d A
Cm
A M
easu
rem
ent
10A
DC
and
AC
Mea
sure
men
tS
enso
r Tes
t (U
T61A
onl
y)P
ower
off
OFF
mV
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
11
Func
tiona
l But
tons
Bel
ow ta
ble
indi
cate
d fo
r inf
orm
atio
n ab
out t
he fu
nctio
nal b
utto
n op
erat
ions
.
Pre
ss to
sel
ect t
he m
axim
um a
nd m
inim
um v
alue
.
Ope
ratio
n P
erfo
rmed
Pre
ss a
nd h
old
for 2
ser
cond
s to
turn
the
disp
lay
back
light
on
or o
ff.P
ress
to e
nter
or e
xit d
ata
hold
mod
e.P
ress
to s
elec
t the
alte
rnat
e fe
atur
eP
ress
RA
NG
E to
ent
er th
e m
anua
l ran
ging
mod
e;th
e M
eter
bee
ps.
Pre
ss R
AN
GE
to s
tep
thro
ugh
the
rang
es a
vaila
ble
fo
r the
sele
cted
func
tion;
the
Met
er b
eeps
.P
ress
and
hol
d R
AN
GE
for 2
sec
onds
to re
turn
to a
utor
angi
ng;
the
Met
er b
eeps
Pre
ss a
gain
to e
xit R
EL
mod
eFo
r Mod
el U
T61C
, UT6
1C a
ndP
ress
and
hol
d fo
r ove
r 2 s
econ
ds to
ent
er o
r exi
t RS
232C
or
US
B m
ode.
Pre
ss to
ent
er R
EL
mod
e.
Butto
n
Hol
dBL
UE
Butto
nR
ANG
E
REL
PEAK
(UT6
1E o
nly)
"CA
L" m
eans
the
met
er e
nter
sel
f-cal
ibra
tion
mod
e.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
12
Dis
play
Sym
bols
Mea
ning
Dat
a ho
ld is
act
ive.
Sle
ep M
ode
indi
cato
rIn
dica
tes
nega
tive
read
ing.
Indi
cato
r for
AC
mea
sure
men
tIn
dica
tor f
or D
C m
easu
rem
ent
The
Met
er is
in th
e au
to ra
nge
mod
e in
whi
ch th
e M
eter
aut
omat
ical
lyse
lect
s th
e ra
nge
with
the
best
reso
lutio
n.In
dica
tor f
or m
anua
l ran
ging
mod
e.Th
e in
put v
alue
is to
o la
rge
for t
he s
elec
ted
rang
e.Tr
ansi
stor
test
ing
indi
cato
rTe
st o
f dio
deTh
e co
ntin
uity
buz
zer i
s on
.M
axim
um a
nd M
inim
um re
adin
g.D
ata
outp
ut is
in p
rogr
ess
The
batte
ry is
low
.
W
arni
ng: T
o av
oid
fals
e re
adin
gs, w
hich
cou
ld le
ad to
poss
ible
ele
ctric
sho
ck o
r per
sona
l inj
ury,
repl
ace
the
batte
ryas
soo
n as
the
batte
ry in
dica
tor a
ppea
rs.
Sen
sor t
est i
s in
pro
gres
s
No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Sym
bol
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
13
No
The
REL
is o
n to
disp
lay
the
stor
ed v
alue
min
us th
e pr
esen
t val
ue.
: Ohm
. Th
e un
it of
resi
stan
ce.
k: k
ilohm
. 1
x 10
3 or 1
000
ohm
s.M
: Meg
aohm
. 1
x 10
6 or 1
,000
,000
ohm
s.V:
Vol
ts.
The
unit
of v
olta
ge.
mV:
Mill
ivol
t. 1
x 1
0-3 o
r 0.0
01 v
olts
.A
: Am
pere
s (a
mps
). T
he u
nit o
f cur
rent
.m
A: M
illia
mp.
1 x
10-3
or 0
.001
am
pere
sµA
: M
icro
amp.
1x
10-6
or 0
.000
001
ampe
res
F: F
arad
. Th
e un
it of
cap
acita
nce.
µF :
Mic
rofa
rad.
1 x
10-6
or 0
.000
001
fara
ds.
nF :
Nan
ofar
ad. 1
x 1
0-9 o
r 0.0
0000
0001
fara
ds.
: Cen
tigra
de.
The
unit
of te
mpe
ratu
re.
: Fah
renh
eit.
The
uni
t of t
empe
ratu
re.
Hz:
Her
tz.
The
unit
of fr
eque
ncy
in c
ycle
s/se
cond
.kH
z: K
ilohe
rtz.
1 x
103 o
r 1,0
00 h
ertz
.M
Hz:
Meg
aher
tz.
1 x
106 o
r1,0
00,0
00 h
ertz
.Th
e un
it of
tran
sist
or
16 17
Sym
bol
Mea
ning
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
14
Mea
sure
men
t Ope
ratio
nA
. DC
/AC
Vol
tage
Mea
sure
men
t (S
ee fi
gure
2)
figu
re 2
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
15
War
ning
To a
void
har
ms
to y
ou o
r dam
ages
to th
e M
eter
from
ele
ctric
sho
ck, p
leas
e do
not a
ttem
pt to
mea
sure
vol
tage
s hi
gher
than
100
0V a
lthou
gh re
adin
gs m
ay b
eob
tain
ed.
Whe
n m
easu
ring
high
vol
tage
, tak
e ex
tra
care
to a
void
ele
ctric
sho
ck.
1. In
sert
the
red
test
lead
into
the
V te
rmin
al a
nd th
e bl
ack
test
lead
into
the
CO
M
term
inal
.2.
Set
the
rota
ry s
witc
h to
V; D
C m
easu
rem
ent i
s de
faul
t or p
ress
BLU
E bu
tton
to
sw
itch
betw
een
DC
and
AC
mea
sure
men
t mod
e.3.
Con
nect
the
test
lead
s ac
ross
with
the
obje
ct b
eing
mea
sure
d. T
he m
easu
red
v
alue
sho
ws
on th
e di
spla
y.
UT6
1A, U
T61B
and
UT6
1C:
disp
lay
effe
ctiv
e va
lue
of s
ine
wav
e (m
ean
valu
e
resp
onse
).
UT6
1D a
nd U
T61E
: di
spla
y tru
e rm
s va
lue.
4. P
ress
Hz%
to o
btai
n th
e fre
quen
cy a
nd d
uty
cycl
e va
lue.
Inpu
t Am
plitu
de: (
DC
ele
ctric
leve
l is
zero
)
Inpu
t Am
plitu
de:
ran
ge
30%
Freq
uenc
y re
spou
se:U
T61A
and
B
400
Hz
UT6
1C,U
T61D
and
UT6
1E
1K
Hz
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
16
Not
e
In e
ach
rang
e, th
e M
eter
has
an
inpu
t im
peda
nce
of 1
0M e
xcep
t mV
rang
e
w
hich
inpu
t im
peda
nce
is 3
000M
. Th
is lo
adin
g ef
fect
can
cau
se m
easu
rem
ent
erro
rs in
hig
h im
peda
nce
circ
uits
. If
the
circ
uit i
mpe
danc
e is
less
than
or e
qual
to 1
0k, t
he e
rror
is n
eglig
ible
(0.1
% o
r les
s).
For U
T61A
and
UT6
1B:W
hen
mea
surin
g m
V, y
ou m
ust p
ress
RA
NG
E m
anua
lly
to
ent
er m
V ra
nge.
Whe
n vo
ltage
mea
sure
men
t has
bee
n co
mpl
eted
, dis
conn
ect t
he c
onne
ctio
n
be
twee
n th
e te
stin
g le
ads
and
the
circ
uit u
nder
test
, and
rem
ove
the
test
ing
lead
s
aw
ay fr
om th
e in
put t
erm
inal
s of
the
Met
er.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
17
B. D
C/A
C C
urre
nt M
easu
rem
ent (
See
figu
re 3
)
figu
re 3
A
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
18
War
ning
Befo
re c
onne
ctin
g th
e M
eter
to th
e re
turn
circ
uit t
o be
test
ed, c
ut o
ff th
e cu
rren
tof
the
retu
rn c
ircui
t.
If th
e fu
se b
urns
out
dur
ing
mea
sure
men
t, th
e M
eter
may
be
dam
aged
or t
heop
erat
or h
imse
lf m
ay b
e hu
rt.
Use
pro
per t
erm
inal
s, fu
nctio
n, a
nd ra
nge
for t
he m
easu
rem
ent.
Whe
n th
e te
stin
g le
ads
are
conn
ecte
d to
the
curr
ent t
erm
inal
s, d
o no
t par
alle
lth
em a
cros
s an
y ci
rcui
t.
To m
easu
re c
urre
nt, d
o th
e fo
llow
ing:
1. In
sert
the
red
test
lead
into
the
mA
or A
inpu
t ter
min
al a
nd th
e bl
ack
test
lead
in
to th
e C
OM
term
inal
.2.
Set
the
rota
ry s
witc
h to
A
, mA
, or A
.3.
The
Met
er d
efau
lts to
DC
cur
rent
mea
sure
men
t mod
e. T
o to
ggle
bet
wee
n D
C
and
AC
cur
rent
mea
sure
men
t fun
ctio
n, p
ress
BLU
E bu
tton.
4. C
onne
ct th
e te
st le
ad in
ser
ial t
o th
e re
turn
circ
uit t
o be
test
ed.
The
mea
sure
d
val
ue s
how
s on
the
disp
lay.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
19
UT6
1A, U
T61B
and
UT6
1C:
disp
lay
effe
ctiv
e va
lue
of s
ine
wav
e (m
ean
valu
e re
spon
se).
UT6
1D a
nd U
T61E
: di
spla
y tru
e rm
s va
lue.
5. P
ress
Hz%
to o
btai
n th
e fre
quen
cy a
nd d
uty
cycl
e va
lue.
Inpu
t Am
plitu
de: (
DC
ele
ctric
leve
l is
zero
)
Inpu
t Am
plitu
de:
rang
e
30%
Freq
uenc
y re
spon
se:U
T61A
and
B
400
Hz
UT6
1C ,
UT6
1D a
ndU
T61E
1
KH
z
Not
e
If th
e va
lue
of c
urre
nt to
be
mea
sure
d is
unk
now
n, u
se th
e m
axim
um m
easu
rem
ent
pos
ition
, and
redu
ce th
e ra
nge
step
by
step
unt
il a
satis
fact
ory
read
ing
is o
btai
ned.
For s
afet
y sa
ke, e
ach
mea
sure
men
t tim
e fo
r >5A
cur
rent
sho
uld
be le
ss th
an
10
sec
onds
and
the
inte
rval
tim
e be
twee
n 2
mea
sure
men
ts s
houl
d be
gre
ater
than
15
min
utes
.
Whe
n cu
rren
t mea
sure
men
t has
bee
n co
mpl
eted
, dis
conn
ect t
he c
onne
ctio
n
b
etw
een
the
test
ing
lead
s an
d th
e ci
rcui
t und
er te
st, a
nd re
mov
e th
e te
stin
g le
ads
away
from
the
inpu
t ter
min
als
of th
e M
eter
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
20
C. M
easu
ring
Res
ista
nce
(See
figu
re 4
)
figur
e 4
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
21
W
arni
ngTo
avo
id d
amag
es to
the
Met
er o
r to
the
devi
ces
unde
r tes
t, di
scon
nect
circ
uit
pow
er a
nd d
isch
arge
all
the
high
-vol
tage
cap
acito
rs b
efor
e m
easu
ring
resi
stan
ce.
To a
void
har
m to
you
rsel
f, do
not
inpu
t hig
her t
han
DC 6
0V o
r AC
30V
volta
ges.
To m
easu
re re
sist
ance
, con
nect
the
Met
er a
s fo
llow
s:
1. In
sert
the
red
test
lead
into
the
term
inal
and
the
blac
k te
st le
ad in
to th
e C
OM
te
rmin
al.
2. S
et th
e ro
tary
sw
itch
to
resi
stan
ce m
easu
rem
ent (
) is
defa
ult o
r pre
ss B
LUE
b
utto
n to
sel
ect
mea
sure
men
t mod
e.3.
Con
nect
the
test
lead
s ac
ross
with
the
obje
ct b
eing
mea
sure
d. If
ther
e is
lead
on
th
e re
sist
or o
r SM
T re
sist
or, i
t is
mor
e co
nven
ienc
e to
use
the
incl
uded
mul
ti-
pur
pose
soc
ket t
o ca
rry
out t
estin
g.Th
e m
easu
red
valu
e sh
ows
on th
e di
spla
y.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
22
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
23
D. T
estin
g fo
r Con
tinui
ty (S
ee fi
gure
5)
figur
e 5
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
24
W
arni
ngTo
avo
id d
amag
es to
the
Met
er o
r to
the
devi
ces
unde
r tes
t, di
scon
nect
circ
uit
pow
er a
nd d
isch
arge
all
the
high
-vol
tage
cap
acito
rs b
efor
e te
stin
g fo
r con
tinui
ty.
To a
void
har
m to
you
rsel
f, do
not
inpu
t hig
her t
han
DC 6
0V o
r AC
30V
volta
ges.
To te
st fo
r con
tinui
ty, c
onne
ct th
e M
eter
as
belo
w:
1. In
sert
the
red
test
lead
into
the
ter
min
al a
nd th
e bl
ack
test
lead
into
the
CO
M
term
inal
.2.
Set
the
rota
ry s
witc
h to
and
pre
ss B
LUE
butto
n to
sel
ect
mea
sure
men
t mod
e.3.
The
buz
zer s
ound
s co
ntin
uous
ly if
the
resi
stor
to b
e te
sted
is <
10.
T
he b
uzze
r doe
s no
t sou
nd if
the
resi
stor
to b
e te
sted
is >
35
Not
e
UT6
1A, U
T61B
, UT6
1C a
nd U
T61D
: ope
n ci
rcui
t vol
tage
is a
roun
d 0.
45V
UT6
1E: o
pen
circ
uit v
olta
ge is
aro
und
-1.2
V
Whe
n co
ntin
uity
test
ing
has
been
com
plet
ed, d
isco
nnec
t the
con
nect
ion
betw
een
the
test
ing
lead
s an
d th
e ci
rcui
t und
er te
st, a
nd re
mov
e th
e te
stin
g le
ads
away
from
the
inpu
t ter
min
als
of th
e M
eter
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
25
E. T
estin
g D
iode
s (S
ee fi
gure
6)
figur
e 6
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
26
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
27
Con
nect
the
test
lead
s to
the
prop
er te
rmin
als
as s
aid
abov
e to
avo
id e
rror
disp
lay.
The
LC
D w
ill di
spla
y O
L in
dica
ting
diod
e be
ing
test
ed is
ope
n or
pol
arity
is re
vers
ed.
The
unit
of d
iode
is V
olt (
V),
disp
layi
ng th
e fo
rwar
d vo
ltage
dro
p
re
adin
gs.
Whe
n di
ode
test
ing
has
been
com
plet
ed, d
isco
nnec
t the
con
nect
ion
betw
een
the
test
ing
lead
s an
d th
e ci
rcui
t und
er te
st, a
nd re
mov
e th
e te
stin
g le
ads
away
from
the
inpu
t ter
min
als
of th
e M
eter
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
28
F. C
apac
itanc
e M
easu
rem
ent (
See
figu
re 7
)
figur
e 7
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
29
War
ning
To a
void
dam
age
to th
e M
eter
or t
o th
e eq
uipm
ent u
nder
test
, dis
conn
ect c
ircui
tpo
wer
and
dis
char
ge a
ll hi
gh-v
olta
ge c
apac
itors
bef
ore
mea
surin
g ca
paci
tanc
e.U
se th
e D
C V
olta
ge fu
nctio
n to
con
firm
that
the
capa
cito
r is
disc
harg
ed.
To m
easu
re c
apac
itanc
e, c
onne
ct th
e M
eter
as
follo
ws:
1. In
sert
the
red
test
lead
into
the
term
inal
and
the
blac
k te
st le
ad in
to th
e C
OM
te
rmin
al.
2. S
et th
e ro
tary
sw
itch
to a
nd p
ress
BLU
E bu
tton
to s
elec
t nF
mea
sure
men
t mod
e.
At t
hat t
ime,
the
Met
er w
ill d
ispl
ay a
fixe
d va
lue
as b
elow
whi
ch is
the
Met
er
int
erna
l fix
ed d
istri
bute
d ca
paci
tanc
e va
lue.
To
ensu
re a
ccur
acy
whe
n
mea
surin
g a
smal
l val
ue o
f cap
acita
nce,
the
test
ed v
alue
mus
t sub
tract
this
v
alue
, RE
L m
ode
can
help
on
that
.
UT6
1A, U
T61B
, UT6
1C, U
T61D
and
UT6
1E: a
roun
d 10
nF
UT6
1E: a
roun
d 50
PF
For m
ore
conv
enie
nce,
use
the
incl
uded
mul
ti-pu
rpos
e so
cket
for m
easu
ring
ca
paci
tor w
ith le
ads
or S
MT
capa
cito
r. In
sert
the
capa
cito
r to
be te
sted
into
th
e co
rres
pond
ing
"+" a
nd "-
" jac
k of
the
mul
ti-pu
rpos
e so
cket
. Th
is m
etho
d
is m
ore
stab
le a
nd c
orre
ct fo
r sm
all v
alue
of c
apac
itanc
e te
stin
g.3.
Con
nect
the
test
lead
s ac
ross
with
the
obje
ct b
eing
mea
sure
d.
The
mea
sure
d va
lue
show
s on
the
disp
lay.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
30
figur
e 8
n th
e te
sted
cap
acito
r is
mor
e th
an 1
00uF
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
31
300
For
UT6
1E:M
easu
ring
Aud
io fr
eque
ncy,
if th
e in
put v
olta
ge is
mor
e th
an 1
5 vo
lt.
th
e m
eter
will
sim
ulat
e th
e so
und
in s
ame
frequ
ency
.
40M
Hz:
unsp
ecifi
ed44M
odel
UT6
1A/6
1B/6
1C/6
1D/6
1E: O
PERA
TING
MAN
UAL
32
Whe
n fre
quen
cy m
easu
rem
ent h
as b
een
com
plet
ed, d
isco
nnec
t the
con
nect
ion
betw
een
the
test
ing
lead
s an
d th
e ci
rcui
t und
er te
st, a
nd re
mov
e th
e te
stin
g le
ads
away
from
the
inpu
t ter
min
als
of th
e M
eter
.
H. T
empe
ratu
re M
easu
rem
ent (
UT6
1B a
nd U
T61C
onl
y) (S
ee fi
gure
9)
figur
e 9)
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
33
War
ning
To a
void
har
m to
you
rsel
f, do
not
inpu
t hig
her t
han
DC 6
0V o
r AC
30V
volta
ges.
To m
easu
re te
mpe
ratu
re, c
onne
ct th
e M
eter
as
follo
ws:
1. S
et th
e ro
tary
sw
itch
to
.2.
Inse
rt th
e te
mpe
ratu
re p
robe
into
the
inpu
t ter
min
al a
s sh
own
on th
e fig
ure
9.3.
Pla
ce th
e te
mpe
ratu
re p
robe
to th
e ob
ject
bei
ng m
easu
red.
A
fter f
ew s
econ
ds, t
he m
easu
red
valu
e sh
ows
on th
e di
spla
y.4.
Pre
ss B
LUE
butto
n to
togg
le b
etw
een
and
te
mpe
ratu
re.
Not
e
To a
void
mea
sure
men
t err
or e
spec
ially
low
tem
pera
ture
mea
sure
men
t, th
e
op
erat
ing
tem
pera
ture
mus
t not
exc
eed
18 ~
28
.
Whe
n te
mpe
ratu
re m
easu
rem
ent h
as b
een
com
plet
ed, d
isco
nnec
t the
con
nect
ion
betw
een
the
tem
pera
ture
pro
be a
nd th
e ob
ject
bei
ng m
easu
red,
and
rem
ove
the
tem
pera
ture
pro
be a
way
from
the
inpu
t ter
min
als
of th
e M
eter
.
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
34
I. Tr
ansi
stor
hFE
Mea
sure
men
t (U
T61A
onl
y) (S
ee fi
gure
10)
figu
re 1
0
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
35
1. S
et th
e ro
tary
sw
itch
to h
FE.
2. In
sert
the
mul
ti-pu
rpos
e so
cket
into
the
inpu
t ter
min
al a
s sh
own
on fi
gure
10.
3. In
sert
the
trans
isto
r to
be te
sted
into
the
corre
spon
ding
mul
ti-pu
rpos
e so
cket
jack
s.4.
The
LC
D d
ispl
ay h
FE n
eare
st v
alue
Not
e
Whe
n tra
nsis
tor m
easu
rem
ent h
as b
een
com
plet
ed, d
isco
nnec
t all
the
conn
ectio
nbe
twee
n m
ulti-
purp
ose
sock
et, t
rans
isto
r and
the
Met
er.
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
36
J. E
F Fu
nctio
n (U
T61A
onl
y) (S
ee fi
gure
11)
figur
e 11
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
37
To u
se E
F fu
nctio
n, c
onne
ct th
e M
eter
as
follo
ws:
1. S
et th
e ro
tary
sw
itch
to E
F an
d re
mov
e th
e te
st le
ad fr
om th
e in
put t
erm
inal
s.
2. P
lace
the
hous
ing
front
par
t with
mar
king
to
war
ds th
e ob
ject
bei
ng m
easu
red.
3. T
here
will
be
thre
e ty
pes
of d
ispl
ays:
LCD
dis
play
s di
ffere
nt s
ize
of d
igits
to r
epre
sent
the
stre
ngth
of d
etec
ted
s
igna
l.
Whe
n th
e LC
D d
ispl
ays
OL,
the
buz
zer
beep
s an
d th
e re
d LE
D b
links
.
Ope
ratio
n of
Hol
d M
ode
War
ning
To a
void
pos
sibi
lity
of e
lect
ric s
hock
, do
not u
se H
old
mod
e to
det
erm
ine
if ci
rcui
tsar
e w
ithou
t pow
er.
The
Hol
d m
ode
will
not
cap
ture
uns
tabl
e or
noi
sy re
adin
gs.
The
Hol
d m
ode
is a
pplic
able
to a
ll m
easu
rem
ent f
unct
ions
.
Pre
ss H
OLD
to e
nter
Hol
d m
ode;
the
Met
er b
eeps
.
Pre
ss H
OLD
aga
in to
exi
t Hol
d m
ode;
the
Met
er b
eeps
.
In H
old
mod
e,
is d
ispl
ayed
.
Mod
el U
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/61E
: OPE
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ANUA
L
38
RA
NG
E bu
tton
Pre
ss R
AN
GE
to e
nter
the
man
ual r
angi
ng m
ode;
the
Met
er b
eeps
.
Pre
ss R
AN
GE
to s
tep
thro
ugh
the
rang
es a
vaila
ble
for t
he s
elec
ted
func
tion;
the
Met
er b
eeps
.
Pre
ss a
nd h
old
RA
NG
E fo
r ove
r 2 s
econ
ds to
retu
rn to
aut
oran
ging
; the
Met
er
be
eps.
MA
X M
IN b
utto
n (U
T61A
, UT6
1B, U
T61C
and
UT6
1D o
nly)
Pre
ss M
AX
MIN
to s
tart
reco
rdin
g of
max
imum
and
min
imum
val
ues.
Ste
ps
th
e di
spla
y th
roug
h hi
gh (M
AX
) and
low
(MIN
) rea
ding
s. T
he M
eter
ent
ers
man
ual r
angi
ng m
ode
afte
r pre
ssin
g M
AX
MIN
but
ton.
Pre
ss a
nd h
old
MA
X M
IN fo
r ove
r 2 s
econ
ds to
exi
t MA
X M
IN m
ode
and
retu
rn
to
the
pres
ent m
easu
rem
ent r
ange
.
PEA
K H
old
(UT6
1E o
nly)
Und
er v
olta
ge a
nd c
urre
nt m
easu
rem
ent m
ode,
pre
ss P
EAK
but
ton
to e
nter
man
ual r
angi
ng m
ode
and
star
t rec
ordi
ng o
f Pm
ax a
nd P
min
val
ues.
The
LC
D
di
spla
ys M
AN
U/P
max
.
Pre
ss P
EAK
aga
in to
dis
play
MA
NU
/Pm
in.
Pre
ss P
EAK
to s
tep
the
disp
lay
thro
ugh
Pea
k M
ax a
nd P
eak
Min
read
ings
.
Pre
ss a
nd h
old
PEA
K fo
r ove
r 2 s
econ
ds to
exi
t Pea
k m
ode,
the
LCD
dis
play
s
th
e pr
esen
t mea
sure
men
t val
ues.
Don
't pr
ess
the
"PEA
K" K
ey.If
the
met
er h
ave
ente
red
"CA
L" m
ode.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
39
For U
T61E
,Aut
o en
terin
g D
ata
outp
uttin
g m
ode.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
40
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
41
Gen
eral
Spe
cific
atio
ns
Max
imum
Vol
tage
bet
wee
n an
y Te
rmin
als
and
Gro
undi
ng:
Ref
er to
the
diffe
rent
rang
es in
put p
rote
ctio
n vo
ltage
..
Fuse
d P
rote
ctio
n fo
r A
mA
Inpu
t Ter
min
al:1
A H
240
V
6x25
mm
.
Fuse
d P
rote
ctio
n fo
r 10A
Inpu
t Ter
min
al:1
0A H
240
V
6x25
mm
.
Dis
play
UT6
1A a
nd U
T61B
:Max
imum
read
ing
4000
(fre
quen
cy 9
999)
, ana
logu
e
b
ar g
raph
41
segm
ents
UT6
1C a
nd U
T61D
:Max
imum
read
ing
6000
(fre
quen
cy 9
999)
, ana
logu
e
b
ar g
raph
61
segm
ents
.
UT6
1E:M
axim
um re
adin
g 22
000,
ana
logu
e ba
r gra
ph 4
6 se
gmen
ts
Mea
sure
men
t Spe
ed:
Upd
ates
2~3
tim
es/s
econ
d.
Ran
ge:
Aut
o or
Man
ual
Pol
arity
Dis
play
: Aut
o
Ove
rload
indi
catio
n: D
ispl
ay O
L
Bat
tery
Def
icie
ncy:
Dis
play
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
42
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
43
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
44
(0.8
%+3
)
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
45
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
46
3
Mod
el U
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/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
47
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
48
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
49
0
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
50
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
51
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
52
3
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
53
10
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
54
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
55
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
56
444444
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
57
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
58
300
4040
040
M
0.01
Hz
0.00
1Hz
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
59
0.00
1V
0.00
01V
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
RATI
NG M
ANUA
L
60
Vac
Mod
el U
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/61D
/61E
: OPE
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NG M
ANUA
L
61
Mai
nten
ance
This
sec
tion
prov
ides
bas
ic m
aint
enan
ce in
form
atio
n in
clud
ing
batte
ry a
nd fu
sere
plac
emen
t ins
truct
ion.
War
ning
Do
not a
ttem
pt to
repa
ir or
ser
vice
you
r Met
er u
nles
s yo
u ar
e qu
alifi
ed to
do
so a
nd h
ave
the
rele
vant
cal
ibra
tion,
per
form
ance
test
, and
ser
vice
info
rmat
ion.
To a
void
ele
ctric
al s
hock
or d
amag
e to
the
Met
er, d
o no
t get
wat
er in
side
the
case
.A
. Gen
eral
Ser
vice
Per
iodi
cally
wip
e th
e ca
se w
ith a
dam
p cl
oth
and
mild
det
erge
nt.
Do
not u
se
ab
rasi
ves
or s
olve
nts.
To c
lean
the
term
inal
s w
ith c
otto
n ba
r with
det
erge
nt, a
s di
rt or
moi
stur
e in
the
term
inal
s ca
n af
fect
read
ings
.
Turn
off
the
pow
er o
f the
Met
er w
hen
it is
not
in u
se.
Take
out
the
batte
ry w
hen
it is
usi
ng fo
r a lo
ng ti
me.
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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ANUA
L
62
Do
not u
se o
r sto
re th
e M
eter
in a
pla
ce o
f hum
idity
, hig
h te
mpe
ratu
re, e
xplo
sive
,
in
flam
mab
le a
nd s
trong
mag
netic
fiel
d.
B. R
epla
cing
the
Bat
tery
figur
e 12
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
63
War
ning
To a
void
fals
e re
adin
gs, w
hich
cou
ld le
ad to
pos
sibl
e el
ectri
c sh
ock
or p
erso
nal
inju
ry, r
epla
ce th
e ba
ttery
as
soon
as
the
batte
ry in
dica
tor "
c" a
ppea
rs.
Mak
e su
re th
e te
st le
ads
are
disc
onne
cted
from
the
circ
uit b
eing
test
ed b
efor
eop
enin
g th
e ca
se b
otto
m.
To re
plac
e th
e ba
ttery
: (S
ee fi
gure
12)
1. T
urn
the
Met
er p
ower
off
and
rem
ove
all c
onne
ctio
ns fr
om th
e te
rmin
als.
2. R
emov
e th
e sc
rew
from
the
tilt s
tand
and
the
batte
ry c
ompa
rtmen
t and
sep
arat
e
the
batte
ry c
ompa
rtmen
t and
the
tilt s
tand
from
the
case
bot
tom
.3.
Rem
ove
the
batte
ry fr
om th
e ba
ttery
com
partm
ent.
4. R
epla
ce th
e ba
ttery
with
a n
ew 9
V b
atte
ry (N
ED
A16
04, 6
F22
or 0
06P
)5.
Rej
oin
the
tilt s
tand
, bat
tery
com
partm
ent a
nd c
ase
botto
m, a
nd re
inst
all t
he s
crew
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
64
C. R
epla
cing
the
Fuse
s
figur
e 13
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
65
War
ning
To a
void
ele
ctric
al s
hock
or a
rc b
last
, or p
erso
nal i
njur
y or
dam
age
to th
e M
eter
,us
e sp
ecifi
ed fu
ses
ON
LY in
acc
orda
nce
with
the
follo
win
g pr
oced
ure.
To te
st th
e fu
se: (
See
figu
re 1
3)Th
e M
eter
doe
s no
t res
pons
e w
hen
mea
surin
g cu
rren
t and
tran
sist
or h
FE, g
o to
insp
ect t
he M
eter
bui
lt-in
fuse
s if
they
are
bro
ken.
To re
plac
e th
e M
eter
ís fu
se: (
See
figu
re 1
2)1.
Tur
n th
e M
eter
pow
er o
ff an
d re
mov
e al
l the
con
nect
ions
from
the
term
inal
s.2.
Rem
ove
the
scre
w fr
om th
e til
t sta
nd a
nd th
e ba
ttery
com
partm
ent a
nd s
epar
ate
th
e ba
ttery
com
partm
ent a
nd th
e til
t sta
nd fr
om th
e ca
se b
otto
m.
3. R
emov
e th
e tw
o sc
rew
s fro
m th
e ca
se b
otto
m, a
nd s
epar
ate
the
case
top
from
the
c
ase
botto
m.
4. R
emov
e th
e fu
se b
y ge
ntly
pry
ing
one
end
loos
e, th
en ta
ke o
ut th
e fu
se fr
om it
s
bra
cket
.5.
Inst
all O
NLY
repl
acem
ent f
uses
with
the
iden
tical
type
and
spe
cific
atio
n as
follo
ws
a
nd m
ake
sure
the
fuse
is fi
xed
firm
ly in
the
brac
ket.
A
mA
rang
e:
F1, 1
A H
240
V,
6x25
mm
(CE
)
10A
rang
e:F2
, 10A
H 2
40V,
6x
25 m
m. (
CE
)6.
Rej
oin
the
case
bot
tom
and
cas
e to
p, a
nd re
inst
all t
he s
crew
.7.
Rej
oin
the
tilt s
tand
, bat
tery
com
partm
ent a
nd c
ase
botto
m, a
nd re
inst
all t
he s
crew
.
Mod
el U
T61A
/61B
/61C
/61D
/61E
: OPE
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NG M
ANUA
L
66
USB
Ser
ial P
ort (
UT6
1B, U
T61C
, U
T61D
and
UT6
1E o
nly)
It is
opt
iona
l at e
xtra
cos
t.
Plea
se re
fer t
o th
e ìIn
stal
latio
n G
uide
& C
ompu
ter I
nter
face
Sof
twar
eî fo
r ins
tallin
gan
d op
erat
ing
inst
ruct
ions
of t
he U
T61
Inte
rfac
e Pr
ogra
m.
**E
ND
**
Mod
el U
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/61B
/61C
/61D
/61E
: OPE
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NG M
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L
67
This
ope
ratin
g m
anua
l is
subj
ect t
o ch
ange
with
out n
otic
e.
Cop
yrig
ht 2
008
Uni
-Tre
nd G
roup
Lim
ited.
All
right
s re
serv
ed.
Man
ufac
ture
r:U
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ode:
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ung
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oad
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