Extech Instruments MA440

MA44x‐en‐GB_V1.08/16
2
Introduction
ThankyouforselectingtheExtechEX44xSeries400AClampMeter.
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TheMA440isa400AACClampmeterwithatotalof9functions.
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TheMA443isa400ATrueRMSACClampmeterthatoffers10functionsincludingTRMSAC
measurementsandTypeKThermocouple
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TheMA445is
a400AAC/DCTrueRMSClampmeterwith11functionsincludingDCCurrent,TRMS
ACmeasurements,andTypeKThermocouple.
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TheMA44xseriesarehand‐held,4000countclampmeters.ThismeterseriesmeasuresAC/DC
voltage,ACcurrent,DCcurrent(MA445),resistance,diode,continuity,capacitance,temperature
(MA443andMA445),frequency,
anddutycycle.Inaddition,thesemetersofferDisplayhold,MIN‐
MAX(MA443andMA445),Relativemode,NCV(non‐contactvoltagedetection),andautomatic
powerOFF.
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Inadditiontothemeter,thepackagingincludesInstructionaldocumentation(QuickStart),Test
Leads,K‐typetemperatureprobe(MA443andMA445),batteries,andapouch.
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Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyearsofreliable
service.Pleasevisitourwebsite(www.extech.com)tocheckforthelatestversionofthisUser
Guide,ProductUpdates,ProductRegistration,andCustomerSupport.
Safety
Toensurethesafeoperationandserviceofthemeter,followtheseinstructionsclosely.Failuretoobserve
warningscanresultinseverepersonalinjuryordeath.
TheseinstrumentsaredesignedandproducedinstrictaccordancewithIEC/EN61010‐1,IEC/EN61010‐2‐032,
andIEC/EN61010‐2‐033,safetystandards,andcomply
withthesafetystandardfordoubleinsulation,
overvoltageCATIII600Vandpollutionlevel2.Pleaseobservealloperationalandsafetyinstructions
otherwisetheprotectionprovidedbyinstrumentmaybecompromised.
TheseinstrumentsconformtoULstandard61010‐1,61010‐2‐032,61010‐2‐033;theseinstrumentsare
certifiedto
CSAstandardC22.2no.61010‐1,IECstandard61010‐2‐032,andIECstandard61010‐2‐033.
CATIII:Applicabletotestandmeasuringcircuitsconnectedtothedistributionsectionofabuilding’slow
voltagemainsinstallation;beforeuseoftheseinstrumentspleaseobserveandobeyallsafetyinstructions.
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