Extech Instruments MA3010 Manuale utente

USERGUIDE



3000ATRUERMSACFlexibleClampMeters

ModelMA3010andMA3018

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Introduction

ThankyouforchoosingtheExtechACFlexibleClampmeterthatcanmeasuresupto3000AAC

rms.TheMA3018isthe18”(45.7cm)clampversionandtheMA3010isthe10”(25.4cm)clamp

version,otherwisebothmetersarethesame.ThesedevicesareprofessionalCATIV600VCATIII

1000VinstrumentsthatofferAutoPowerOFF,DataHold,andbacklightfeatures.Thismeteris

shippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliableservice.

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Features

3000AACTrueRMSCurrentMeasurements

AutoRange

3000countlargescalebacklitLCDdisplay

ConvenientFlexibleClampwithlockingmechanism

7.5mm(0.3”)coildiameterformeasuringintightspaces

DataHold

AutoPowerOFF

BatterystatusiconandBatterystatuspoweronalert

Longlifebatterypower



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SafetyInformation

Toensurethesafeoperationandserviceofthemeter,followtheseinstructionsclosely.Failureto

observewarningscanresultinsevereinjury.



WARNINGS



WARNINGSidentifyhazardousconditionsandactionsthatcouldcauseBODILYHARMorDEATH.

IndividualprotectiveequipmentshouldbeusedifHAZARDOUSLIVEpartsintheinstallation

wheremeasurementsaretobecarriedoutcouldbeaccessible.

Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,theprotection

providedbytheequipmentmaybeimpaired.

Toreducetheriskoffireorelectricshock,donotexposethisproducttorainormoisture.

Verifythemeteroperationbymeasuringaknowncurrent.Ifindoubt,havethemeter

serviced.

Donotapplymorethantheratedvoltage/currentasmarkedonthemeter.

Toavoidfalsereadingsthatcanleadtoelectricshockandinjury,replacebatteryassoonas

thelowbatteryindicatorappears.

Donotusethemeterinoraroundexplosivegasorvapor.

Donotuseaflexiblecurrentsensoriftheinnercopperwireoftheflexiblecordisvisible.

De‐energizetheinstallationundertestorwearsuitableprotectiveclothingwhenplacingor

removingtheflexiblecurrentprobefromatestsetup.

Donotapply/removetheflexiblecurrentprobeto/fromUNINSULATEDHAZARDOUSLIVE

conductorswhichmaycauseelectricshock,electricburn,orarcflash.

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CAUTIONS



CAUTIONSidentifyconditionsandactionsthatcouldcauseDAMAGEtothemeterorequipment

undertest.Donotexposethemetertoextremesintemperatureorhighhumidity.

SafetySymbolsthataretypicallymarkedonmetersandinstructions

Thissymbol,adjacenttoanothersymbol,indicatestheusermustrefertothe

manualforfurtherinformation.

DonotapplyorremoveclampfromHAZARDOUSLIVEconductors

Equipmentprotectedbydoubleorreinforcedinsulation

Batterysymbol

ConformstoEUdirectives

Donotdiscardthisproductinhouseholdtrash.

ACmeasurement

Earthground



PERIEC1010OVERVOLTAGEINSTALLATIONCATEGORY

OVERVOLTAGECATEGORYI

EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhich

measuresaretakentolimitthetransientover‐voltagestoanappropriatelowlevel.

Note–Examplesincludeprotectedelectroniccircuits.

OVERVOLTAGECATEGORYII

EquipmentofOVERVOLTAGECATEGORYIIisenergy‐consumingequipmenttobesuppliedfrom

thefixedinstallation.

Note–Examplesincludehousehold,office,andlaboratoryappliances.

OVERVOLTAGECATEGORYIII

EquipmentofOVERVOLTAGECATEGORYIIIisequipmentinfixedinstallations.

Note–Examplesincludeswitchesinthefixedinstallationandsomeequipmentforindustrialuse

withpermanentconnectiontothefixedinstallation.

OVERVOLTAGECATEGORYIV

EquipmentofOVERVOLTAGECATEGORYIVisforuseattheoriginoftheinstallation.

Note–Examplesincludeelectricitymetersandprimaryover‐currentprotectionequipment

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Description

MeterDescription

1. FlexibleCurrentClamp

2. Power‐Holdbutton

3. BatteryCompartment

4. Backlightbutton

5. LCDdisplay

6. ClampLockmechanism



DisplayIcons

HOLDDataHold

AAmperes(Current)

‐ Minussymbol(negative)

FULLBatterystatusmessage(onpowerup)

Batterystatusicon

30003000countreadingdisplay



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Operation

NOTES:ReadandunderstandallWarningandCautionstatementsinthisoperationmanual

priortousingthismeter.

MeterPower

Themeterispoweredbytwo(2)AAA1.5Vbatteries(locatedincompartmentonbottomofmeter

handle).PressandholdthePowerbuttonfor>2secondstoswitchthedeviceONorOFF.

WhenthemeterswitchesONthedisplayshowsthebatterystatus(FULL,forexample).Thereis

alsoabatterystatusicondisplayedonthelowerrighthandcorneroftheLCD.

Lowbatteryindication

WhenthedisplayedbatteryiconappearsemptyorifthepowerONbatterystatusmessage

indicatesweakbatterypower,thebatteriesshouldbereplacedimmediately.Refertothe

batteryreplacementprocedureinthemaintenancesection.

AutomaticPowerOFF

ThemeterswitchesOFFautomaticallyaftera20minuteperiodofinactivity(±30seconds).To

disabletheAutoPowerOFFfeature:

WiththemeterpowerOFF,pressandholdthePowerbuttonfor>2seconds

Whenthedisplayshowsthebatterystatus(FULL,forexample),pressthebacklight

buttonuntilthedisplayshows‘AoFF’.

TheAPOfeatureisnowdisabledandthemeterwillnotshutoffautomatically.

Notethatthenexttimethemeterispoweredup,theAutoPowerOFFfunctionwillbe

re‐enabledandtheuserwillhavetorepeattheAutoPowerOFFdisableinstructionsto

disablethisfunctionwhendesired.

BacklitLCD

PressthebacklightbuttontoswitchtheLCDbacklightONorOFF.Notethatexcessiveuseofthe

backlightfeaturewillshortenbatterylife.

DataHold

PresstheHOLDbuttonwiththemeterONtofreezethedisplayedreading.TheHOLDiconwill

appearalongwiththeheldreading.PresstheHOLDbuttonagaintoreleasetheHOLDfeature.

TheHOLDiconwillswitchOFFandthemeterwillshowrealtimereadings.

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ACCurrentMeasurements

WARNING:EnsurethatpowertothedeviceundertestisOFFbeforestartingthisprocedure.

SwitchpowertothedeviceundertestONonlyaftertheclamphasbeensafelyattachedtothe

deviceundertest.

CATUTION:DonotmovefingersabovetheLCDatanytimeduringatest.



1. SwitchthemeterOFFandswitchOFFpowertothedeviceundertest.

2. Turntheknurledclamplockmechanismcounter‐clockwisetoreleasetheflexibleclamp.

3. Fullyencloseonlyoneconductorofthedeviceundertestwiththeflexibleclampprobe(see

accompanyingdiagrams).Donotattempttomeasurecurrenthigherthanthespecified

currentlimit.

4. SwitchthemeterONandthenswitchpowertothedeviceundertestON.Nevermove

fingersabovetheLCDwhenrunningatest.

5. Readthecurrentvalueinthedisplay.Themeterwillautomaticallyselecttheappropriate

range.



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Maintenance

WARNING:Toavoidelectricalshock,disconnectthemeterfromanycircuitandturnOFFthe

meterbeforeopeningthecase.Donotoperatethemeterwithanopencase.

CleaningandStorage

Periodicallywipethecasewithadampclothandmilddetergent;donotuseabrasivesor

solvents.Ifthemeterisnottobeusedfor60daysormore,removethebatteriesandstorethem

separately.

BatteryReplacement

CAUTION:RemovethemeterfromtheconductorundertestandswitchthemeterOFF

beforeopeningthebatterycompartment.



1. Withaflatbladescrewdriverorcoin,rotatethebatterycompartmentcovertotheunlock

position.

2. Removethebatterycompartmentcover.

3. Replacethe2‘AAA’1.5Vbatteriesobservingcorrectpolarity.

4. Re‐attachthebatterycompartmentcover.

5. Rotatethebatterycompartmentcovertothelockposition.



You,astheenduser,arelegallybound(EUBatteryordinance)toreturnallused

batteries,disposalinthehouseholdgarbageisprohibited!Youcanhandoveryour

usedbatteries/accumulatorsatcollectionpointsinyourcommunityorwherever

batteriesaccumulatorsaresold!

Disposal:Followthevalidlegalstipulationsinrespectofthedisposalofthedevice

attheendofitslifecycle

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Specifications

FunctionRangeOverloadReading(OL)ResolutionAccuracy

(45to500Hz)

ACCurrent



30.00AAC33.00AAC0.01A±(3.0%+5digits)

300.0AAC330.0AAC0.1A±(3.0%+5digits)

3000AAC3300AAC1A±(3.0%+5digits)

Notes:

Accuracyisgivenas±(%ofreading+leastsignificantcounts)at23C±5Cwithrelativehumidity

lowerthan80%.Accuracyisspecifiedforaperiodofoneyearaftercalibration.

PositionErrorofClamp:Accuracyandpositionerrorassumescentralizedprimaryconductorat

optimumposition,noexternalelectricalormagneticfield,andwithinoperatingtemperature

range.

MA3010MA3010Error*MA3018MA3018Error*

Distancefrom

optimumposition

15mm(0.6”)+2.0%35mm(1.4”)+1.0%

25mm(1.0”)+2.5%50mm(2.0”)+1.5%

35mm(1.4”)+3.0%60mm(2.4”)+2.0%

*AddthiserrortotheACCurrentaccuracyspecificationlistedearlierinthissection.

LCDdisplays‘0’countswhenthereadingis<10counts.

ACAspecificationsareACCoupled,TrueRMS.

Fornon‐sinusoidalwaveforms,additionalaccuracyCrestFactor(C.F.)considerationsexistas

detailedbelow:

Add3.0%forC.F.1.0~2.0

Add5.0%forC.F.2.0~2.5

Add7.0%forC.F.2.5~3.0



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GENERALSPECIFICATIONS

ClampJawFlexibletypewithlockingmechanismand7.5mm(0.3”)coil

diameter

Display3000countLCDwithbacklightandmulti‐functionindicators

LowBatteryindicationBatterysymbolisdisplayedandtextalertisshownuponpowerup

Over‐rangeindication‘OL’display

Measurementconversionrate4timespersecond

ACbandwidth45to500Hz(sinewave)

ACresponseTrueRMS

OperatingTemperatureandHumidity

0~30C(32~86F);80%RHmaximum

30~40C(86~104F);75%RHmaximum

40~50C(104~122F);45%RHmaximum

StorageTemperatureandHumidity

‐20~60C(‐4~140F);80%RHmaximum

TemperatureCoefficient0.2xspecifiedaccuracy/C,<18C(64.5F),>28C(82.4F)

AltitudeMaximumoperatingaltitude2000m(6562’)

BatteryTwo“AAA”1.5Vbatteries

Batterylife200hourswithalkalinebatteries

AutopowerOFFAfterapprox.20minutesofinactivity

Dimensions(WxHxD)MA3010:120x280x25mm(4.7x11.0x1.0”)

MA3018:130x350x25mm(5.1x13.8x1.0”)

WeightMA3010:170g(6.0oz.)/MA3018:200g(7.1oz.)

SafetyStandardsForindooruseandinaccordancewiththerequirementsfordouble

insulationtoEN61010‐1,EN61010‐2‐032,EN61326‐1;CATIV600V,

CATIII1000V,PollutionDegree2

ShockVibrationSinusoidalvibrationMIL‐PRF‐28800F(5‐55Hz,3gmax.)

DropProtection1.2m(4’)dropontohardwoodorconcreteflooring



Reservadostodoslosderechos,incluyendoelderechodereproduccióntotaloparcialencualquiermedio

www.extech.com

www. .com information@itm.com1.800.561.8187

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