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INSTRUCTIONMANUAL

KEW SNAP

　

2434

KEW SNAPSeries

LEAKAGECURRENTTESTER

KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.,

TOKYO, JAPAN

1. SAFETY WARNINGS

ThisinstrumenthasbeendesignedandtestedaccordingtoIEC

Publication61010:SafetyRequirementsforElectronicMeasuring

Apparatus.Thisinstructionmanualcontainswarningsandsafetyrules

whichmustbeobservedbytheusertoensuresafeoperationofthe

instrumentandtoretainitinsafecondition.Therefore,readthroughthese

operatinginstructionsbeforestartingusingtheinstrument.

#

WARNING

●

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

beforestartingusingtheinstrument.

●

Saveandkeepthemanualathandtoenablequickreferencewhenever

necessary.

●

Besuretousetheinstrumentonlyinitsintendedapplicationsandto

followmeasurementproceduresdescribedinthemanual.

●

Besuretounderstandandfollowallsafetyinstructionscontainedin

themanual.

Notfollowingtheaboveinstructionsmaycauseinjury,instrumentdamage

and/ordamagetoequipmentundertest.

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

Understandandfollowallthesafetyinstructionscontainedinthemanual.

Failuretofollowtheinstructionsmaycauseinjury,instrumentdamageand/

ordamagetoequipmentundertest.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relatedpartsofthemanualforsafeoperationoftheinstrument.Besure

tocarefullyreadtheinstructionsfollowingeach

#

symbolinthis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.

Followingsymbolsareusedontheinstrumentandintheinstruction

manual.Attentionshouldbepaidtoeachsymboltoensureyoursafety.

#

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



Indicatesaninstrumentwithdoubleorreinforcedinsulation.

Indicatesthatthisinstrumentcanclamponbareconductorswhen

measuringavoltagecorrespondingtotheapplicableMeasurement

category,whichismarkednexttothissymbol.



IndicatesAC(AlternatingCurrent).



IndicatesEarth.

#

DANGER

●

Nevermakemeasurementonacircuithavingpotentialof300VACor

greater.

●

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

gasses.Otherwise,theuseoftheinstrumentmaycausesparking,

whichleads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equipmentundertesthasexposedmetalparts.

●

Neverattempttousetheinstrumentifitssurfaceoryourhandiswet.

●



Donotexceedthemaximumallowableinputofanymeasurementrange.

●

Neveropenthebatterycompartmentcoverwhenmakingmeasurement.

●

Nevertrytomakemeasurementifanyabnormalconditions,suchas

brokenTransformerjawsorcaseisnoted.

●



Theinstrumentistobeusedonlyinitsintendedapplicationsorconditions.

Otherwise,safetyfunctionsequippedwiththeinstrumentdoesn'twork,and

instrumentdamageorseriouspersonalinjurymaybecaused.

●

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

#

WARNING

●

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

arenoted,suchasbrokencase,crackedtestleadsandexposedmetal

parts.

●

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

instrument.ReturntheinstrumenttoKyoritsuoryourdistributorfor

repairorre-calibration.

#

CAUTION

●

Makesurethattherangeselectorswitchissettoanappropriate

positionbeforemakingmeasurement.

●

Donotexposetheinstrumenttothedirectsun,extremetemperatures

ordewfall.

●

Besuretosettherangeselectorswitchtothe"OFF"positionafter

use.Whentheinstrumentwillnotbeinuseforalongperiodoftime,

placeitinstorageafterremovingthebatteries.

●

Useadampclothanddetergentforcleaningtheinstrument.Donot

useabrasivesorsolvents.

●

Alwaysswitchofftheinstrumentbeforeopeningthebattery

compartmentcoverforbatteryreplacement.

Measurementcategories(Over-voltagecategories)

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:Primary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overcurrentprotectiondevice(distribution

panel).

2. FEATURES

●

DigitalclamptesterforACleakagecurrentmeasurement.

●

Leastaffectedbyexternalmagneticfield,providingwidemeasuring

rangefromverysmalltolargecurrents.

●

DesignedtosafetystandardIEC61010-2-032:measurementCAT.

Ⅲ

,

300Vandpollutiondegree2.

●

Dataholdfunctiontoallowforeasyreadingsindimlylitorhard-to-

reachlocations.

●

Providesfilteringfunctiontoremovehighfrequencygeneratedbysuch

equipmentasinverters.

●

Sleepfunctionpreventsunnecessarypowerconsumption.

●

Dynamicrangeof4000countsfullscale.

●

Largeeasy-to-readLCDdisplaywithletterheightof13mm.

●

Transformerjawsfittedwithguardtofurtherimprovesafety.

O: Device which is

not directly

connected to the

mains power supply

3. SPECIFICATIONS

Measuringrangesandaccuracy

RangeMeasuringRangeAccuracy(Frequencyrange)

400mA0

〜

399.9mA

 ±

2.0%rdg

±

4dgt

（

50/60Hz

）

 ±

3.0%rdg

±

5dgt

（

40

〜

400Hz

）

4A0

〜

3.999A

100A0

〜

100.0A

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aresomething,whichgeneratinglargemagneticfield,atanearbysite,

currentvaluecanbedisplayed(



0



cannotbedisplayed.)beforeclampingon

theconductor.Forsuchacase,pleaseusetheinstrumentatalocationfarfrom

thething,whichgeneratingmagneticfield.

Followingarethetypicalthingsgeneratingmagneticfield.

Conductorfedlargecurrent,Motor,Equipmentwhichhasmagnet,Integrating

wattmeter

Measuring method:

DualIntegration

Display:

Liquidcrystaldisplaywithmaximumreadingof

3999

Low battery warning:

"BATT"markappearsonthedisplay

Overrange Indication:

"OL"appearsonthedisplaywhenupperlimitof

measuringrangeisexceeded

Response Time:

Approx.2seconds

Sample Rate:

Approx.2.5timespersecond

Location for use

Indooruse,Altitudeupto2000m

Accuracy-insured

23

℃±

5

℃

,relativehumidity85%orless

Temperature and

(withoutcondensation)

Humidity Ranges:



Operating Temperature

0-40

℃

,relativehumidity85%orless

and Humidity Ranges:

(withoutcondensation)

Storage Temperature

-20-60

℃

,relativehumidity85%orless

and Humidity Ranges:

(withoutcondensation)

Power Source:

Two1.5VR03(UM-4)batteries

Current Consumption:

Approx.4mA

Measurement Time:

Approx.150hours

Sleep Function:

Automaticallypowereddowninabout10

minutesafterthelastswitchoperation

Safety Standard:

IEC61010-1,IEC61010-2-032

measurementCAT.

Ⅲ

300V,pollutiondegree2

IEC61326(EMC),EN50581(RoHS)

Overload Protection:

120Armsmax.for10seconds

Withstand Voltage:

3470Vrms(50/60Hz)for5secondsbetween

metalpartoftransformerjawsandhousingcase

(excepttransformerjawcase)

Insulation Resistance:

10M

Ω

orgreaterat1000Vbetweenmetalpart

oftransformerjawsandhousingcase(except

transformerjawcase)

Conductor Size:

Approx.28mmindiametermax.

Dimensions:

169(L)

×

75(W)

×

40(D)mm

Weight:

Approx.220gincludingbatteries

Accessories:

TwoR03(UM-4)batteries

CarryingcaseModel9097

Instructionmanual

Optional Accessories:

Multi-TranModel8008

4. INSTRUMENT LAYOUT

5. PREPARATIONS FOR MEASUREMENT

5-1 Checking Battery Voltage

SettheRangeSelectorSwitchtoanypositionotherthantheOFF

position.Ifthemarksonthedisplayisclearlyvisiblewithout"BATT"

markshowing,batteryvoltageisOK.Ifthedisplayblanksor"BATT"is

indicated,replacethebatteriesaccordingtosection8:Battery

Replacement.

NOTE

Whentheinstrumentisleftpoweredon,theSleepfunction

automaticallyshutthepoweroff;Thedisplayblanksevenifthe

RangeSelectorSwitchissettoapositionotherthantheOFF

positioninthisstate.Topowerontheinstrument,turntheRange

SelectorSwitchorpressanybutton.Ifthedisplaystillblanks,the

batteriesarecompletelyexhausted.Replacethebatteries.

5-2 Checking Switch Setting

MakesurethattheRangeSelectorSwitchissettotheappropriate

range.

Alsomakesurethatdataholdfunctionisnotenabled.Ifinappropriate

rangeisselected,desiredmeasurementcannotbemade.

Transform Jaws

Trigger

Range Selector Switch

Hand Strap

Display

Frequency Selector Button

Data Hold Button

●ＬＣＤ

Low Battery Warning

Frequency Response :

Wide

Frequency Response :

50/60Hz

Data Hold Indication

Unit

Barrier

Barrier is a part providing protection against electrical shock and

ensuring the minimum required air and creepage distances.

Produktspecifikationer