Kyoritsu KEW 8146 Bedienungsanleitung

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INSTRUCTIONMANUAL

KEW 8146/8147/8148

LEAKAGE CLAMP SENSOR

Series

KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,

TOKYO, JAPAN

KEW

8146

KEW

8147

KEW

8148

LEAKAGECLAMPSENSOR

1. Safety warnings

Thisinstrumenthasbeendesigned,manufacturedand

testedaccordingtoIEC

61010

:Safetyrequirementsfor

ElectronicMeasuringapparatus,anddeliveredinthebest

conditionafterpassingqualitycontroltests.This

instructionmanualcontainswarningsandsafetyrules

whichhavetobeobservedbytheusertoensuresafe

operationoftheinstrumentandtomaintainitinsafe

condition.Therefore,readthroughtheseoperating

instructionsbeforeusingtheinstrument.

# WARNING

●

Readthroughandunderstandinstructionscontainedin

thismanualbeforeusingtheinstrument.

●

Keepthemanualathandtoenablequickreference

whenevernecessary.

●

Theinstrumentistobeusedonlyinitsintended

applications.

Theoperatinginstructionsdescribedinthemanualmust

beobserved.

●

Understandandfollowallthesafetyinstructions

containedinthemanual.

Itisessentialthattheaboveinstructionsareadheredto.

Failuretofollowtheaboveinstructionsmaycauseinjury

andorinstrumentdamage.

Kyoritsuisbynomeansliableforanydamageresulting

fromtheinstrumentincontradictiontothiscautionary

note.

Thesymbol

#

indicatedontheinstrument,meansthat

theusermustrefertotherelatedpartsinthemanualfor

safeoperationoftheinstrument.Itisessentialtoreadthe

instructionswhereverthe

#

symbolappearsinthe

manual.



#



DANGER

isreservedforconditionsandactionsthat

arelikelytocauseseriousorfatalinjury.

#



WARNING

isreservedforconditionsandactions

thatcancauseseriousorfatalInjury.

#



CAUTION

isreservedforconditionsandactionsthat

cancauseminorinjuryorinstrumentdamage.

#

DANGER

●

Nevermakemeasurementonacircuitinwhichthe

electricalpotentialexceedsAC

300

V.

●

Donotmakemeasurementwhenthunderrumbling.Ifthe

instrumentisinuse,stopthemeasurementimmediately

andremovetheinstrumentfromthemeasuredobject.

●

Donotattempttomakemeasurementinthepresenceof

flammablegasses.Otherwise,theuseoftheinstrument

maycausesparking,whichcanleadtoanexplosion.

●

Thetransformerjawsaremadeofmetalandtheirtips

arenotcompletelyinsulated.Beespeciallycareful

aboutthepossibleshortingwherethemeasuredobject

hasexposedmetalparts.

●

Neverattempttousetheinstrumentifit'ssurfaceor

yourhandarewet.

●

Donotexceedthemaximumallowableinputofany

measuringrange.

# WARNING

●

Neverattempttomakeanymeasurement,ifany

abnormalconditionsarenoted,suchasbrokencase,

andexposedmetalparts.

●

Donotinstallsubstitutepartsormakeanymodification

totheinstrument.

Returntheinstrumenttothedistributorfromwhoyou

purchasedthisinstrumentforrepairorre-calibrationin

caseofsuspectedfaultyoperation.

●

Alwayskeepyourfingersandhandsbehindthebarrier

ontheinstrumenttoavoidthepossibleshockhazard.

# CAUTION

●

Donotsteponorpinchthecordtopreventthejacketof

cordfrombeingdamaged.

●



Theoutputconnectorshallberemovedorconnected

withoutclampingaconductor.Otherwise,itmaycause

afailure.

●

Donotexposetheinstrumenttodirectsunlight,high

temperatures,humidityordew.

●

Nevergiveshocks,suchasvibrationordrop,whichmay

damagetheinstrument.

●

Useadampclothanddetergentforcleaningthe

instrument.Donotuseabrasivesorsolvents.

Safetysymbols

Incoming wire

Ｏ:

Device which is

not directly

connected to the

mains power supply

Socket

Interior wiring

○

MeasurementCategory:

 

Toensuresafeoperationofmeasuringinstruments,

IEC

61010

establishessafetystandardsforvarious

electricalenvironments,categorizedasOtoCATIV,

andcalledmeasurementcategories.Higher-numbered

categoriescorrespondtoelectricalenvironmentswith

greatermomentaryenergy,soameasuringinstrument

designedforCATIIIenvironmentscanenduregreater

momentaryenergythanonedesignedforCATII.

O:Circuitswhicharenotdirectlyconnectedtothe

mainspowersupply.

CATII:Electricalcircuitsofequipmentconnectedtoan

ACelectricaloutletbyapowercord.

CATIII:Primaryelectricalcircuitsoftheequipment

connecteddirectlytothedistributionpanel,and

feedersfromthedistributionpaneltooutlets.

CATIV:Thecircuitfromtheservicedroptotheservice

entrance,andtothepowermeterandprimary

over-currentprotectiondevice(distribution

panel).

　2. Features

●

ClampsensorforACleakagecurrentmeasurement.

●

Canmeasureupto:

KEW

8146

：

30

A

KEW

8147

：

70

A

KEW

8148

：

100

A

●



DesignedtointernationalsafetystandardIEC

61010

-

2

-

032

CAT

Ⅲ

PollutionDegree

2

　3. Instrument layout

TransformJaws

Trigger

Cable

Outputconnector

Barrier

Barrier

：

Itisapartprovidingprotectionagainstelectrical

shockandensuringtheminimumrequiredairand

creepagedistances.

　4. DIN Plug pin assignment

3

:GNDpin

5

:Outputsignalpin

6

:SensorSignalpin



（

Resistancebetween

3

Pinand

6

Pin:



8146

:

47

k

Ω 

8147

:

8

.

2

k

Ω 

8148

:

30

k

Ω）

1

,

2

and

4

:Nouse

*LowerfigureshowsthepinassignmentseeingtheClamp

sensorfromoutputconnectorpart.Thefigureofthepin

assignmentofconnectionterminalissymmetricaltolower

figure.

5

3

1

2

4

6

　5. Operating instructions

#

DANGER

●

Nevermakemeasurementonacircuitinwhichthe

electricalpotentialexceedsAC

300

Vinordertoavoid

possibleshockhazard.

●

Thetransformerjawsaremadeofmetalandtheirtips

arenotcompletelyinsulated.Beespeciallycareful

aboutthepossibleshortingwherethemeasuredobject

hasexposedmetalparts.

●

Keepyourfingersandhandsbehindthebarrierduringa

measurement.

#

CAUTION

●



Takesufficientcaretoavoidshock,vibrationor

excessiveforcewhenhandlingtheinstrument.

Otherwise,preciselyadjustedtransformerjawswillbe

damaged.

●

Whentransformerjawsdonotfullyclose,nevertryto

closethembyforce,butmakethemfreetomoveand

tryagain.Ifaforeignsubstanceisstuckinthejaw

tips,removeit.

●

Whenmakingcurrentmeasurements,keepthe

transformerjawsfullyclosed.

Otherwise,accuratemeasurementscannotbetaken.

●

Holdtheinsertingpart(exceptforthecable)and

disconnecttheOutputconnectorfromthemeasuring

instrumentsoasnottocauseabreakinthecord.

●

Whenmeasuringcurrentwhichpulseelementis

superposed,differencesoftheindicatedvaluemaybe

causedbetweenranges,ifthepeakvalueexceedsthe

measurementrangetoalargeextent.Inthis

case,the

readingatthebiggerrangeshouldbetaken

asaright

value.SensitivetransformerjawsareusedforLeakage

clampmeter.Becauseofthecharacteristicsof

transformerjaws,whichcanbeopenedandclosed,it

isimpossibletoeliminatetheinterferenceofexternal

magneticfieldcompletely.Ifthereisapresenceof

strongmagneticfield,usetheinstrumentatadistance

asfaraspossiblefromit.Followingarethetypical

thingsgeneratingmagneticfield.

・

Conductorfedlargecurrent

・

Motor

・

Equipmentwhichhasmagnet

・

Integratingwattmeter

5

-

1

Measuringmethod

(

1

)

ConnecttheOutputconnectortotheInputterminalof

themeasuringinstrument.

(

2

)PresstheTriggertoopenthetransformerjawsand

clampontooneconductor.

Inthiscase,themeasuredconductorshallbeatthe

centerofthejaws.

(

3

)

Ensurethatthetipsoftransformerjawsarefirmlyclosed.

5

-

2

Measuringmethod

(

1

)Measuringoutofbalanceleakagecurrent(See

Fig.

1

):Clampontoallconductorsexceptagrounded

wire.

(

2

)Measuringearthleakagecurrent(SeeFig.

2

):Clamp

ontoagroundedwire.

3

-phase

3

-wiresystem

(In

4

-wiresystemwithneutral,

clampontoall

4

wires)

Fig.

1

Measuringoutofbalanceleakagecurrent

Groundedwire

Load

Load

Load

Single-phase

2

-wiresystem

(In

3

-wiresystemwithneutral,

clampontoall

3

wires)

Fig.

2

Measuringearthleakagecurrent

92

-

1746

E

7

-

22

DISTRIBUTOR

#

Refertotheinstructionsinthemanual.



IndicatesaInstrumentwithdoubleorreinforcedinsulation

Indicatesthatthisinstrumentcanclamponlivebare

conductorswhenthevoltagetobetestedisbelow

Circuit-Ground-to-Earthvoltageagainsttheindicated

MeasurementCategory.

～

IndicatesAC

Model

KEW

8146

KEW

8147

KEW

8148

RatedvoltageAC

30

Arms(

42

.

4

Apeak)AC

70

Arms(

99

.

0

Apeak)AC

100

Arms(

141

.

4

Apeak)

Outputvoltage

AC

0

〜

1500

mV

(

50

mV/A)

AC

0

〜

3500

mV

(

50

mV/A)

AC

0

〜

5000

mV

(

50

mV/A)

MeasuringrangeAC

0

〜

30

AAC

0

〜

70

AAC

0

〜

100

A

Accuracy

(Input:sinewave)

0

A

〜

15

A



±

1

.

0

%rdg

±

0

.

1

mV(

50

/

60

Hz)



±

2

.

0

%rdg

±

0

.

2

mV(

40

〜

1

kHz)

15

A

〜

30

A



±

5

.

0

%rdg(

50

/

60

Hz)



±

10

.

0

%rdg(

45

〜

1

kHz)

0

A

〜

40

A



±

1

.

0

%rdg

±

0

.

1

mV(

50

/

60

Hz)



±

2

.

0

%rdg

±

0

.

2

mV(

40

〜

1

kHz)

40

A

〜

70

A



±

5

.

0

%rdg(

50

/

60

Hz)



±

10

.

0

%rdg(

45

〜

1

kHz)

0

A

〜

80

A



±

1

.

0

%rdg

±

0

.

1

mV(

50

/

60

Hz)



±

2

.

0

%rdg

±

0

.

2

mV(

40

〜

1

kHz)

80

A

〜

100

A



±

5

.

0

%rdg(

50

/

60

Hz)



±

10

.

0

%rdg(

45

〜

1

kHz)

Temperature&humidityrange

(Guaranteedaccuracy)



23

±

5

℃

,relativehumidity:

85

%orless(nocondensation)

Operatingtemperaturerange



0

〜

50

℃

,relativehumidity:

85

%orless(nocondensation)

Storagetemperaturerange

-

20

〜

60

℃

,relativehumidity:

85

%orless(nocondensation)

Maximumpermissibleinput

AC

30

Armscontinuous(

50

/

60

Hz)AC

70

Armscontinuous(

50

/

60

Hz)AC

100

Armscontinuous(

50

/

60

Hz)

Output

impedance

Approx.

90

Ω

Approx.

100

Ω

Approx.

60

Ω

Locationforuse

Altitudeupto

2000

m,Indoors

Applicable

standards

IEC

61010

-

1

,IEC

61010

-

2

-

032

MeasurementCAT

Ⅲ

(

300

Vrms)

Pollutiondegree

2

IEC

61326

-

1

(EMC)

Environmental

standards

EURoHSdirectivecompliant

Withstand

voltage

AC

3470

Vrms(

50

/

60

Hz)for

5

sec.

betweenJawandenclosure

betweenenclosureandoutputterminal

betweenJawandoutputterminal

Insulation

resistance

50

M

Ω

orgreaterat

1000

V

betweenJawandenclosure

betweenenclosureandoutputterminal

betweenJawandoutputterminal

ConductorSize

Approx.

24

mmindiameter(max.)

Approx.

40

mmindiameter(max.)

Approx.

68

mmindiameter(max.)

Dimension

100

(L)

×

60

(W)

×

26

(D)mm

128

(L)

×

81

(W)

×

36

(D)mm

186

(L)

×

129

(W)

×

53

(D)mm

Cablelength

Approx.

2

m

OutputterminalMINIDIN

6

PIN

Weight

Approx.

150

gApprox.

240

gApprox.

510

g

Accessories

Instructionmanual

Cablemarker

Option

MODEL

7146

（

Banana

Φ

4

adjusterplug

）

MODEL

7185

（

Extensioncable

）

　6. Specifications

Produktspezifikationen