Uni-T UT208A Bruksanvisning

Uni-T Multimeter UT208A

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T t ov f t fe t d his Opera ing Manual c er ins orma ion on sa ty and cau ions. Please rea

t f t f s ve W t st tly.he relevan int orma ion care ull andy ob er all the arning ands No es ric

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To oid ho onav el ic sectr ck ers o pr a ryl inju , d ionrea the fo “S Inafety rmat ”

caref ef re Meteully b o us the ing r.

T t AC/ V t , AC/ cyhe Me er can measure DC ol age DC Current, Frequen , ty Du Cycle,

Re is an Diodes Con inui ands t ce, , t ty etc.

UT A e t cit ce t .208 has xtra tempera ure and Capa an fea ures

U sp nnpacking In ectio

O ase ake ter it s pen the package c and t out the Me . Check the following em

care ully an mi ing or damaged parf for y ss t:

It Qtem Descript n io y

O 1 English perat l ing Manua 1 pc

2 Tes Lea pait d 1 r

3 P t t t Toin Con ac empera ure robe nl 208 hit P (O y UT A) (T s

cinc ta t luded point con ct tempera ure probe an used onl bey

t t tup o 0 s i23 ℃. For an meay urement s higher han hat, the

t trod ype emperat us ) ure probe mu best ed

4 Tool bo x

1 pc

9 a EDA A F ) 1 V B ttery (N 1604 or 6L 22 pc

In the even you any missing ort ﬁnd damaged part, please contac yourt dealer

immedia elt y.

1 rpai

S fo nafety In rmatio

T this Me er complie wis th IEC61010, Pollution Degree 2, Overvoltage Category

(CAT.Ⅱ600V, CAT 300V) and Double Insulation standards.Ⅲ

CAT v ce RT II: Local le el applian, , PO AB IP tc., L UE EQ MENT e wi malleth s r

transient ov v t CAT .er ol ages than III

CAT III: Dist tribu ion level , ﬁxed installa iont , with smaller transien overvolt tages than CAT IV.

Use he Me er only as in his opera ing manual herwise he pro ec io t t speciﬁed t t , ot t t t n

provided by he Me er ma be impaired t t y .

In a W t t t o this manual, arning iden iﬁes condi ions and ac ions tha poset hazards t

t user t e .he , or ma damagey the Me er or the equipmen undert t st

A te t f t a t o.No iden iﬁes the in orma ion tha usert should pay tten ion t

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To iblavoid poss e el ic sectr hock or p al ryerson inju , a tnd o oid av po iblss e d ge ama

t the r t the e nt a t the o Meter o o quipme under test, dhere o following rules:

B t t●ef ore using he t Me er inspect the case. Do no uset he t i i is Me er f t

tdamaged or he

c case o s i v(or part f the ca e) s remo ed. k fLoo or racks or

t t t cmissing a a tpla icst . P y tten ion o he s t in ula ion around he onnect s.or

I t f●nspec het t es leadst or t t k damaged insula ion or exposed me al. Chec

t t che es lead ort s f ont tyinui . Replace edamaged t st leads th t l wi iden ica

tmodel t t f number or elec rical speciﬁca ions be ore using he ter. Me

t t●Do no applyt more ha hen t t t ra ed vol age as, marked on he ter t n Me , be wee

t t v the erminal ors t be ween any terminal and grounding. If the alue o be

tmeasured useis unknown, he x s t e ma imum mea uremen posit ion and reduc

the st t a ti a i t .range ep by step un il sa sf ct y or reading s ob ained

W●hen t ect n measuremen hast been comple ed disconnec, t the conn io

t t t c t t tbetween he es lead andt s he ircui undert e vest, remo he e s sting lead

f t t taway rom he o t input terminals f the Me er and urn he t off.Me er power

t● T t t he ro ary swi ch should be placed in he t y righ posit ion and no an

schangeov oer f range hall o be made during measurement t preven damaget

o ter.f the Me

t●Do no carryt out the measuremen whent he ter’s y Me back case and ba ertt

tcompart men aret not closed o av .oid ele rict c shock

t t t●Do no inpu highert t han AC t1000 inV DC or 750 V in be ween he wo

t t tMeter’s input terminal o t avoid elec ric shock and damages o he ter.Me

W t●hen he t a eff t t s Me er is working t an ec ive vol age over 70 inV DC or 33 rmV

in AC i o ck., special care should be t f taken or here s danger f ctele ric sho

t t f●Use he proper erminals unc, f t ion and, range or me tyour asuremen

t t●Do stno uset or ore he t oMe er in an environment f high emperat , ure

humidity, , . explosive inﬂammable st t and rong magne ic ﬁeld The f ce per orman

o t t te a .f the Me er ma dey eriora fter dampened

W t t t●hen using he es leads keept , your ﬁngers behind he n .ﬁger guards

● To t t d avoid elec ric shock do, not touch the bare wires connec, ors unuse,

t c tinpu erminalst t or he ircui undert e s t.sting during mea uremen

●Disconnec circui powert t t t f e and discharge all high-vol age capaci ors be or

test t t .ing resis ance, con inui andty diode

t t ●Replace he ba erytt as soon as he tba erytt indica or appears lo. With a w

ba ertt y, t s t t che t Me er might produce se fal reading ha an o lead t electric

shock s y.and per onal injur

W t●hen servicing he ter Me , use only the replacement parts with the same

model or identical electrical specifications.

t● T t o t t ahe in ernal circuit f the Me er shall no bet al ered t will o e avoid damag

o t c t.f the Me er and an acy iden

S t t●o th t ft clo and mild de ergen shouldt be used o clean he f o he sur ace f t

s s tMet er when ervic ve ing No. abrasi and olven houldt s usbe ed o t preven

t s f che urface o tf the Me er rom orros a t.ion damage, and cciden

f● T t the Me er is sui able or .indoor use

t t● Turn he t of i Me er f when t is no int use and ake t out the ba erytt when no

f tusing or a long ime.

t f●Const t an ly check he i i ba erytt as t may leak when t has been using or e som

t t sime repla, ce he ba er astt y oon a k k l s lea ing appears. A lea ing ba er wiltt y

tdamage he ter.Me

In ion bolter atn a il Electr cal Sym s

ns ted IDouble ula

g Groundin

t t O W farning Re. er o he perat l ing Manua

AC (Alt t t)erna ing Curren

DC t)(Direc Current

Cont Testinuity

Diode

Low Battery Indication

AC DCor

Danger o V t ef High ol ag

Conf o o norms t Standards f European Unio

The u ureMeter Str ct

(See Figure 1)

① G fHand uards pro: to t r’s ec uset hand rom

t touching he .dangerou areas

② v o he Lever: press the le er t open t

tran ormersf t v ijaws. When he le er s

creleas ed, the jaws will lose.

③ F Bunctional u stton

④ Input Terminals

⑤ LCD yDispla

⑥ SRotary witch

⑦ J t Tran ormersf aw de: signed o up t AC pick he

tand DC current ﬂowing hrough t or he conduct .

It could rans t f t to ter curren vol age. T ehe t sted

F 1igure

Dis splay Symbol

2)(See Figure

F 2igure

1 T. es diodt f o e

2 T t ty on. he con inui buzzer is

3 t g. Indica or for zeroin

4 ta tive. Da hold is ac

5 T t i to . he Me er s in the au range mode in

ch t t tic swhi the Me er au oma ally select

t the thrange wi he s t .be rest olu ion

6 T tor. rue RM indicaS

7 t AC t t. Indica or for vol age or curren

8 te tive g. Indica s nega readin

9 t t e . Indica or for DC vol ag

10 he ba ery lo. T tt is w.

W : To o ck arning avoid false readings which, could lead t po ibless ele ricct sho

t sor s yper onal injur , replace he ba er astt y oon a cator s.s the ba er inditt y appear

11. T o si hEFhe unit f tran stor

12 he uni empera ure Cen igrade empera ur. T t of t t , ℃: t t t e

13 he uni empera ure ahrenhei empera ur. T t of t t , ℉: F t t t e

14 he uni apa an (U 208 onl. T t of c cit ce T A y)

15 ol. V ts. T o t mV vhe unit f vol age. : Milli ol

16 mperes (amp he uni urren. A s). T t of c t.

17 he uni resi an hm ilohm Megohm. T t f o st ce. (Ω: O , :KkΩ, M :Ω )

c v t t J condu orct st mu erticall goy hrough he aw enter.

18 he uni requenc. T t of f y. : , : (Hz Her Hztz, K : Kilohertz MHz Meghertz)

19 Du cy le mea uremen. ty c s t

Fun ion l onct a Butt s

B t f t t s.elow table indica ed for in orma ion about the fun ionalct bu ontt opera ion

SELECT

RANGE

H DOL

Bu on tt

Op ionerat P o derf rme

P LECT o t te t g ress SE bu ontt t select the al erna func ion includins

V , A and . ( UT A )208 only

Range ea ure and en er NU ranging NU f t : it AUTEx O t MA AL . In MA AL ,

s T o t o AUTO. AUT f t. ele ne inpu rangect xt t . EXI t re urn t O is de aul

P ss ce o o n t re on t t turn he displa ba ligh ony ck t . Press again t tur he

di pla ba kligh herwise will au oma all 15 onds y c t f, of ot it t tic y f ftof a er sec s.

P t t●ress HOLD o ten er he t Hold mode in any mode (excep

%Hz) he, t t . Me er beeps

P t t t●ress HO LD again o exit the Hold mode o tre urn o

meas t s. uremen modet , the Me er beep

● Turn he ro ary swi ch t t t or press any bu on can also tt exi hol modet d .

ZERO

W t a o hen the Me er is t , V %Hz and A , press t%Hz

measure requen and du cle f cy ty cy .

P R o f AC/DC ress ZE O t zeroing the display be ore measuring

v t , AC/ s t ce cit ce.ol age DC curren ret, is an and capa an

Hz%

Automatic Power Off

T s t to a “s i ve t he di pla blank andy s the Me er goe ins leep”mode f you ha no

changed he ro ar wi po ion or pre ed bu on or 15 minu hil t t y s tch sit ss a tt f tes. W e

in leep mode pre ing he any ive un ional bu on or urning S , ss t effect F ct tt t the

ro ary swi ch ould urn he Me er ont t c t t t . To s s di able t she leep mode fun ion presct ,

SE ttLECT bu on while urning on he me t t ter.

Th ion l one i n f Effect ve ess o Funct a Butt s

No every un ional bu on can be used on ever ro ar wi po ions elot f ct tt s y t y s tch sit . B w

t c ch t us ch t tch t . able des ribe whi func ional bu on cantt s be ed on whi ro ary swi posi ions

%Hz

40A

400A

1000A

℃

t h u sRo ary Switc F Bun ionalct tton

P osit s LECTion SE RANGE HO ROLD ZE

%Hz

●

N/A

●

N/A

●

N/A

●

N/A

●

N/A

●

N/A

●

N/A

●

N/A

●

N/A

Meas reme eratu nt Op ion

A . Measuring DC/AC Voltage (See Figure 3)

F 3igure

To o o avoid harm t y r ge tou o dama the

Meter fr etr ck attem om el ic sho , do not pt

t u v g thao meas re olta es higher n V 750 AC

or alt h s e 1000 DCV , houg reading may b

ob inta ed.

To s C t mea ure DC/A vol ages, c ct tonne he

Me er ollowt as f s:

1 I . nsert the red test lead into the

and black test lead in to the COM terminal.

V Hz t erminal

2 e t h o. S t the ro ary switc t V . DC mesaurement

mode h to i a s default. Press to SELECT switc

AC s to t mea uremen modet . Press RANGE en er

manual ranging.

3 o ty or . Press Hz% bu ontt t measure frequency or du cycle bu, t the frequency

c f tduty yc tle reading obs ained rom hi ranges i f ce.s only for re eren

4 e ac th s . T d . Connect the t st leads ro wiss the objec beingt mea ured he measure

v talue show ons he y.displa

Note:

● AC a .Millivol ist manual ranging measuremen modet

I●n t oeach range, the Me er has an inpu impedancet f 10MΩ.

T g his loadin

c ceffect can ause s cemea uremen error int s high impedan ircuits. If the

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circuit impedance is less than or equal to 10kΩ, t (0.1% )he error is negligible or less .

W●hen C t t he DC/A vol age measuremen hast been comple ed disconnec, t t

t t t c tconne ionct tbe ween he e sting lead ands he ircui undert e e st and remov

t f test ing leads rom he s.input terminal

B ur i nce. Meas ing Res sta 4)(See Figure

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To o o onn uiavoid damage t the r tMeter o the i dev ces under test, disc ec rct ci t

power sc ar and di h ge a the ge p itoll high-volta ca ac rs res sta ce before measuring i n .

To ce t a s:measure resi anst , c t tonnec he Me er s follow

1 ns e to e to he . I ert the red t st lead in the V HzΩ terminal and black t st lead in t

t COM erminal.

2 e t h o . S t the ro ar swiy tc t Ω

3 ac th . Connect the tes leadt s ro wiss the object

being measured. The measured value shows

ton he y. displa

F 4igure

Note:

● To t a ob ain more precise reading you, could

remove the objects being es t ted from he t

circuit during measurement.

t● The es leadst 0.1 o 0.3 o can add Ω t Ω f error

to t To t resis ance measurement. ob ain

precision readings in low-resistance

measurement, short-circuit the input terminals

f ss to be orehand pre, ZERO reset to "0" and this

shorted value will be automatically subtracted

from subsequent readings each time you perform

a resistance measurement.

F●or t (> ) ihigh-resis ance measurement 1MΩ, t

is normal ake t to several second ob to tain a stable reading.

● To o o t t t avoid harm t you or damages t the Me er from ele ric shock do, no

ta o t ttempt t input vol ages higher han V AC .33 or 70 DCV

W●hen t t cresis ance measuremen hast been comple ed disconne,

t the

t t t c tconne ionct tbe ween he e sting lead ands he ircui undert e e st and remov

t f test ing leads rom he s.input terminal

C. Testing for C t tyon inui 5)(See Figure

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To o o avoid damage t the r tMeter o the

d i t ci tev ces under test, disconnec rcui power

and di

sc ar -v ta ca ac rsh ge a thell high ol ge p ito

b ore ur c t ty. ef meas ing on inui

To e t ty t st for con inui , c ct tonne he t :Me er as follows

1 ns e to. I ert the red t st lead in the

e to he t . and the black t st lead in t COM erminal

V HzΩ terminal

2 e t t o . S t the ro ary swi ch t and press

SELECT button ele t so ct

measuremen modet

3. T i t o a he buzzer sounds f the resis ance f circuit

under tes ist less han t 10Ω.

4. T i the buzzer may or may no soundt f the resis ance

to a f circui undert es 10t is between 1 to 0Ω 0Ω.

5. T i t o a r he buzzer does no soundt f the resis ance f circui undert tes ist highe

than 010 Ω.

F 5igure

Note

● To o o t t t avoid harm t you or damage t the Me er from ele ric shock do, no

ta o tttempt t input vol age highers han V AC .33 or 70 DCV

W t●hen t tycon inui est t t n ing has been comple ed disconnec, t the connec io

t t t c t tbetween he est ing lead ands he ircui undert e vest and remo e s sting lead

f trom he s.input terminal

D T. esting iodD es (See Figure 6)

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To o o onn uiavoid damage t the r tMeter o the i dev ces under test, disc ec rct ci t

pow ll ol in dioder sc ar and di h ge a the high-v ta ca ac rs ef re testge p ito b o g es.

Use o ot c . the diode test t che diodeck s, transist s, or and her semi ondu orct devices

T s ahe diode test send current through the jun ion hen measures s c t emi ondu or ct , t t he

vol age dropt ac .ross the jun ionct A t tgood silicon junc ion drops be ween 0.5V and 0.8V.

To o a t a s: test the diode out f circuit, c ct tonne he Me er s follow

1 e to e to he . I t tnser he red t st lead in the V HzΩ terminal and black t st lead in t

t COM erminal.

2 e t h o s . S t the ro ar swiy tc t . Pres SELECT

t t o tswi ch o measurement mode.

Note

● To t a ob ain more precise reading you, could

remove the objects being es t ted from he t

circui whent s . mea uring

● To o o avoid harm t you or damage t the

Meter rom f eletric shock do, not attempt to

t V AC . input vol ages higher than 33 or 70 DCV

W t●hen diode est ting has been comple ed,

disconnect the connection between the testing

t c tleads and he ircui undert e v t t hst and remo e es ing leads f trom e inpu erminalt t s.

F 6igure

E. Measuring Frequency and Duty Cycle )(See Figure 7

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To o o hoavoid harm t y r ge tou o dama the om el ic sMeter fr etr ck, do not

attem meas re ta es er 750 AC 1000 DCpt to u vol g high than V or V , hougalt h

rea may tadings be ob ined.

To s t a s:mea ure frequency/duty cycle, c ct tonne he Me er s follow

1 e to e to he . I t tnser he red t st lead in the V HzΩ terminal and the black t st lead in t

t COM erminal.

2 e t t o a f or . S t the ro ary swi ch t %Hz. Frequency measuremen modet is de ault

t tpress %Hz bu ontt o tswi ch o ty e.du cycle measurement mod

3 ac th s . T d . Connect the tes leadt s ro wiss the obje beingct mea ured he measure

tvalue show ons he y.displa

Model UT207A/UT208A/UT209A are 3 3/4 digit AC&DC digital clamp multimeters

(hereinafter referred to as "the Meter") featuring stable performance, high reliability

and unique structure. They are designed with large-scale integrated circuits and

dual integral A/D converter as its core and offer full-range overload protection.

3. For f t orward vol age drop readings on any

semiconductor component, place he t red es t t

t tlead on he t’s componen anode and place he

t tblack est lead on he t’s t . componen ca hode

T cat e he LCD will display OL indi ing diod

being ed open or polari error di pla test is ty s y.

●

Note:

W s t c hen frequency/duty cycle mea uremen hast been comple ed dis, onnect the

connec io be ween he ing lead and he ircui under es and remove het n t t test s t c t t t, t

t t s o ter.es ing lead away f trom he input terminals f the Me

F 7igure

F. Measuring DC/AC Current 8)(See Figure

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Th ing n ing e operat tem erat re stp u mu b ~e 0℃40 e℃ wh measur cu nt.rre

To :measure c t furren dot, he ollowing

1 e t h o A. S t the ro ar swiy tc t 40 ,400A A , or 1000 . DC is measurement mode

t s ta f s de ault. Pres SELECT o witch o AC s . mea uremen modet

2. Press the lever to open the transformer jaw. Hold it tight and don't release.

3 t t w se y . Cen er t che ondu orct wi hin t the ran ormersf ja , then relea the lever slowl

t c s t c tuntil he jaw transformer is omplet sely clo ed, Make ure he onductor o

t c tbe e c asted is pla ed t the ent oer f the ran ormersf wja , t ot iherwise will casse

c c±1.0 % additional reading error. The Meter an s onl meay ure one ondu orct at

t t c t ca ime measur, to e more han one ondut a aor t ime will ause v t .de ia ion

Note ( DC Measurement ) :

t t● T ts he built-in Hall componen are very sensitive no onlyt o he magne bu alsot t

t f s co hea andt machines rea ionct orce A. ny hoc willk ause change to the

t sreading in he hor imet t .

●W t hen the Me er does no display t 0

f be ore measurement, pre ss ZERO to zeroing.

F 8igure

W●hen i measuring DC current, f the reading is

positive, then he t current direction is rom f up to

down (see Figure 8: the ron case ace f t f up while the

ase ace . bo omtt c f down)

To obtain a more accurate DC current reading, follow the

procedure as below:

● Turn off the current to the tested conductor.

P t t t t●ress he lever o open he ransf w.ormer ja

W t●hen he st a reading is abled t the minimal,

press ZE O tR o display zero

● Turn on the current to the tested conductor. read

tou het t areading fter he ter i st . Me s able

Note(AC Measurement):

● T t t t y.he me er will zero au oma icall

W t ●hen he 1measuring current > A, Pressing Hz bu ontt can

measure frequency/duty cycle(the reading for reference only)

●AC Conversion:

UT207A/UT208A: AC-coupled and RMS responded.

UT209A:AC-coupled and True RMS responded.

Input the sinewave.

ta o :● Non-sine wave st fmu ollow the below da t adjust

P f teak a 1.4~2.0 1. ct : or , add 0% on he ed stat a cy.ccura

P f teak a 2.0~2.5 2. ct : or , add 5% on he ed stat a cyccura

P f teak a 2.5~3.0 4. ct : or , add 0% on he ed stat a cy.ccura

G. Measuring Temperature T A y(U 208 Onl , See Figure 9)

To s t s t a s:mea ure tempera ure mea uremen connet, ct the Me er s follow

1 t to k . I t tnser he red tempera ure probe in the V HzΩ terminal and the blac

t temperat toure probe in he t .COM erminal

2 e t h o s .. S t the ro ary switc t ℃mea uremen modet

3 t o s . T d . Place t the empera ure probe t the obje beingct mea ured he measure

tvalue show ons he s y.di pla

Note

●When the Me ert is at ℃ range, di plas y “OL” to usremind er to sin ert t t empera ure probe.

t t t● T t t t he Me er au oma ically displays he room emperat ure when he t t empera ure

probe is inserted bu wit thou an input y t.

t● T t t he included poin cont act tempera ure probe can only be used up o 0 . 23 ℃

F t t tor s iany mea urement s higher han ha het, t rod type emperat e ure prob

mu best us .ed

W t t●hen he emperat t t t ure measuremen hast been comple ed disconnec, he

t t tconne ionct tbe ween he emperat ure probe and he

e , obje underct t st and

t f tremove the emperat ure probe away rom he o he ter. input terminals f t Me

F 9igure

H. Measuring Capacitance (UT208A Only, See Figure 10)

To o o hoavoid harm t y r ge tou o dama the om el ic sMeter fr etr ck, do

no ol n V t pt t t vattem o inpu ta esg higher tha 33 AC 70V or DC.

To cit ce :measure capa an , do t fhe ollowing

1 ns e to e o he . I ert the red t st lead in the V HzΩinput terminal and black t st lead t t

.COM input terminal

2 e t h o s on . S t the ro ar swiy tc t Ωmea uremen modet . P ss tre he sele buct tt

to switch to meas .uremen modet

3. To improve the accuracy when measuring small capacitance, press ZERO with

test leads open in order to subtract the residual capacitance of the meter before

making connections to the test leads.

Note:

●Disconnec circui powert t and discharge

all high-voltage capacitors before testing

Capacitors.

W●hen t capaci ance measuremen hast been

complet he ced disconnec, t t onne ionct

between he ing t test lead and he ircuis t c t

t tunder e e tst and remov he es lead awayt s

f o ter.rom the input terminals f the Me

F 10igure

Technical Specifications

A en s:.G eral Speciﬁcation

●Display: 3 3/4 ts y .digi LCD displa , Maximum display 3999

P●olarity: Auto

O●verloading Display: .OL or –OL

● Low Battery Indication: Display .

S t●ampling: 3 imes .per second

t●Measuremen Deviat t : T t ion he conduc or being meaured is no placedt in he

c c ±cent o AC/er f the jaw during DC urren meat s iurement, t will ause tex ra 1%

tdev t s ia ion ba ed on he ed stat a y.ccurac

●Drop Tes me er drop es passedt: 1 t t t .

●Max Jaw 55mm. Opening: ter.diame

●Max Curren conduc. t t ter.or size 45mm: diame

E t●lect t ro-Magne ic: When carrying ou measuremen neart t he t -elec ro

magneti i se .c, t may cau un ablest or wrong reading

P●ower: 1 x 9 F A)V ttba ery (6L 22 1604

●Dimensions 285: . x x . m3mm 105mm 44 5m

●W A te )eight: pproxima 533g (ba erytt included

B vir n nts. En onme ta Re remel qui

f● T t the Me er is sui able or .indoor use

● Altit t mude: Opera ing 2000:

; Storage: 10000m

S●afety C CA V/ Compliances: IE 61010 TII 600 , CATIII 300V, Double

Insulation and Pollution Degree 2.

● Tempera ure and humidit ty:

Operat :ing

0 ~30 ( .H)℃ ℃ ≤85%R

30 ~40 ( .H)℃ ℃ ≤75%R

40 ~50 ( .H)℃ ℃ ≤45%R

Storage:

-20 60 ( .H)℃~+ ℃≤85%R

Accuracy ec cat Sp iﬁ ions

Acc , uracy: ± + (a% reading b tdigi s) guaran ee or yeat f 1 r.

A V t e. DC ol ag

Range Resolut n io Acc ctura erload procy Ov te ion

± 400m 1mV 0. V (0. +3) 8%

4V 0. V 001m

± 40V 0. V 01 (0. +8% 1) DC1000 C750V/A V

400V 0.1V

1000V ±1V (1. +3) 0%

Remark npu mpedan 10: I t I ce: MΩ.

B. AC V t eol ag

Range Res t n Acc y t t nolu io urac Overload pro ec io

400mV 0. V 1m ±(1. + ) 2% 20

4V 0. V 001

± 40V 0. V 01 (1. +2% 3) DC1000 C750V/A V

400V 0.1V

±750V 1V (1. +5) 2%

Remarks:

I●npu mpedance 10t I : MΩ

F●requency ~ zResponse 40Hz: 400H

●AC Conversion:

UT207A/UT208A: AC-coupled and average-responded.

UT209A:AC-coupled and True RMS-responded.

Input the sinewave.

t t● Non-sine wave t fmus ollow he tabelow da o :adjust

P f teak a 1.4~2.0 1. ct : or , add 0% on he ed stat a cyccura

P f teak a 2.0~2.5 2. ct : or , add 5% on he ed stat a cyccura

P f teak a 2.5~3.0 4. ct : or , add 0% on he ed stat a cy.ccura

C ce. stResi an

Range Resolut n io Acc y te nurac Overload pro ctio

±400Ω0.1 Ω(1. +2) 2%

4k Ω0. K 001 Ω

± 40k Ω0. K 01 Ω(1. +0% 2) DC1000 C750V/A V

400kΩ 0.1K Ω

4M Ω0. M ± . +2) 001 Ω (1 2%

40M Ω ±0. M 01 Ω(1. +2) 5%

D t T. Con inuity est

e s t n Rang Re olu io Ac ctcura erload rocy Ov P te ion

0.1 Ω A 10 be 1 V round ≤ Ω,the buzzer eps. DC 000

c(Open irc t 0.4V) Vuit vol age approx /AC750

Remarks:

t t <● T he buzzer beep when he t o a resis ance f circui undert es ist 10

t● T he buzzer may or may no beepst when he t o a 10resis ance f circuit >

E. Diode Test

Range Res t n olu io Accura erload ro ec iocy Ov P t t n

0.5 0.8 VV~ V DC1000

c(Open ircui olt v t 1.5V) Vage approx. /AC750

F. Frequency

Range Resolut n io Acc ctura erload rocy Ov P te ion

400Hz 0. z 1H

4kHz 0. z 001kH

40kHz 0. z 01kH

± 400kHz 0. z 1kH (0. +3) 1% DC1000 C750V/A V

4MHz 0. z 001MH

40MHz 0. z 01MH

Remarks:

I sitivity a s:nput Sen s follow

W shen 100kHz 300m rm ≤ : ≥ V

W shen > 100kHz: ≥ 600mV rm

I t a a snpu amplit ude : 300mV ≤ ≤ 10 rmV

1mV

G. Du Cyty cle

e s t n Acc y te n Rang Re olu io urac O Pverload ro ctio

0. ~ .9% 0.1% f ce y V1% 99 For re eren onl DC1000 C750V/A

H t. DC Curren

Range Resolution cy t t nAccura Overload pro ec io

40A 0. A . +5) 01 ±(2 0%

400A 0.1A . +3) A C ±(2 0% 1000 DC/A

1000A 1A . +5) ±(1 5%

I. AC tCurren

Range Res tolu ion Acc t t nuracy F Ovrequency Response erload pro ec io

40A 0. A ± . +8) 01 (2 5%

400A 0.1A ± . + A C (2 5% 5) 50Hz ~ 60Hz 1000 DC/A

1000A 1A ± . +2) (2 0%

J. Tempera ure (U 208t T A y)onl

O PRange Res t n olu io cy Accura verload rote nctio

0 ~0 +5) -4 ℃ ℃: -(8%

0 ~ 0 1 0 ~ 0 . +3) 1K-4 ℃100 ℃ ℃ ℃40 ℃: ±(2 5% Ω

0 ~ 0 +3) 40 ℃100 ℃: ±(3%

K. Capa ance(U 208 onlcit T A y)

PRange s t n Re olu io y Accurac Overload rote nctio

F4nF 0. F 001n or f y re erence onl

40nF 0. F 01n

± 400nF 0. F 1n (4. + 0% 3) DC1000 C750V/A V

4μF 0. F 001μ

40μF 0. F 01μ

±100mF 0. F 1μ (5. + ) 0% 10

Ma tein nance

T t t f t c y his sec ion provides basi mainc enance in orma ion in luding ba ertt

replacemen in ru iont st ct .

W garnin

D t pt t pair r i y r y a ed o no attem o re o serv ce ou Meter unless ou are qu liﬁ

t s a the l nt o n a ice o do o nd have re eva ca ratlib ion, perf rma ce test, nd serv

in ionformat .

To o ter t s he . avoid ele ricalct sho orck damage t the Me , do no ge wat t er in ide t case

A en ice. G eral Serv

P t●eriodically wipe he th a th t e case wi damp clo and mild de ergen Dot. no ust

sabrasives or olvents.

● To th th t t in clean t the erminals wi co ontt bar wi de ergen ast, dir ort mois ure

t the erminal cans affe s.ct reading

t● Turn he t of i .Me er power f when t is no int use

● Take ou he ba ery when is no using or long ime t t tt it t f a t .

t●Do stno uset or ore he t a o tyMe er in place f humidi , high empera ure t t ,

explosive, inﬂammable st and rong magne

t .ic ﬁeld

B the y. Repl ing ac Batter 11) (See Figure

W garnin

To oid ding h d ibl hoav fa se real s c, whi could lea to poss e el ic sectr ck or

p a ry the s the or “ ” erson l inju , plre ace battery as oon as battery indicat

a .ppears

Figure 11

Ma sure he ran ormer jaw and he leads are di cone ed rom he circuike t t sf t tets s ct f t t

being es ed be ore opening he ca bo om t t f t se tt .

To y:replace the ba ertt

1. T t of ve surn the Me er f and remo all t che onne ionct s from the input terminal

2. T ter’s .urn the Me fron caset down

3 ve t te y . Remo the screw f trom he ba er compartt y men andt, separa the ba ertt

t ccompartment from he ase .bo omtt

4. Take ou he old ba er and repla wi new ba ery (6L 22 1604 t t tt y ce th a 9V tt F , A).

5 t w.. Rejoin t che ase bo omtt and the ba erytt compar men andt, rein allst the scre

O t t 23 ±5pera ing tempera ure: ℃ ℃

Rela ive humidi 80%Rt ty: ≤ .H

Tempera ure coe accuracy)t fﬁcient: 0.1×(speciﬁed /1 ℃

P/N: 110401106347X

MAY.2018 REV. 2

Produktspecifikationer

Varumärke:	Uni-T
Kategori:	Multimeter
Modell:	UT208A
Vikt:	533 g
Bakgrundsbelysning:	Ja
Grundläggande noggrannhet (växelström):	±(2%+2)
Grundläggande noggrannhet (växelspänning):	±(1.2%+3)
Grundläggande noggrannhet (kapacitans):	±(4%+3)
Grundläggande noggrannhet (frekvens):	±(0.1%+3)
Grundläggande noggrannhet (motstånd):	±(1%+2)
Diodtest:	Ja
Grundläggande noggrannhet (likström):	±(1.5%+5)
Produktstorlek (BxDxH):	105 x 45 x 286 mm
DC-spänningsområde:	0.4 - 1000 V
AC-spänningsområde:	0.4 - 750 V
Kontinuitet kontroll:	Ja
Batterispänning:	9 V
Indikator för låg batterinivå:	Ja
DC strömområde:	40 - 1000 A
AC-strömområde:	40 - 1000 A
Grundläggande noggrannhet (likspänning):	±(0.8%+1)
Intervall för temperaturmätning:	-40 - 1000 ° C
Data håller:	Ja