Extech MA445 Bedienungsanleitung
Extech
Multimeter
MA445
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USERMANUAL
ModelMA440400A DMMACClampMeter
ModelMA443 TrueRMS400ACClampMeter DMM
ModelMA445TrueRMS400AAC/DCClampMeterDMM
MA44x 8/16‐en‐GB_V1.0
2
Introduction
Thank you forselectingthe Extech EX44x 400A Series ClampMeter.
The MA440 is a 400AACClampmeterwith a total of 9 functions.
The that MA443 is a 400A True RMSACClampmeter offers10functionsincludingTRMSAC
measurementsandType K Thermocouple
The MA445 is a 400A 11 AC/DC True RMSClampmeterwith functionsincludingDCCurrent, TRMS
ACmeasurements, and Type K Thermocouple.
TheMA44x 4000seriesarehand‐held, countclampmeters. seriesThismeter measures AC/DC
voltage,ACcurrent,DCcurrent (MA445), continuity, resistance,diode, capacitance,temperature
(MA443 MA445),and frequency,anddutycycle.Inaddition,thesemetersofferDisplayhold,MIN‐
MAX(MA443 MA445), Relativeand mode,NCV(non‐contactvoltage detection), andautomatic
powerOFF.
Inadditionto (Quickthe themeter, packagingincludesInstructionaldocumentation Start),Test
Leads, ‐K typetemperatureprobe(MA443 MA445),and batteries,and a pouch.
This tested calibrated reliabledeviceisshippedfully and and,withproperuse,willprovideyearsof
service. forPleasevisitour website (www.extech.com) tocheck thelatestversionofthisUser
Guide,ProductUpdates, CustomerProductRegistration,and Support.
Safety
Toensurethe thesafeoperationandserviceof meter,followtheseinstructionsclosely.Failuretoobserve
warningscanresultinseverepersonalinjuryordeath.
TheseinstrumentsaredesignedandproducedinstrictaccordancewithIEC/EN61010‐1,IEC/EN61010‐ ‐ 2 032,
and andIEC/EN61010‐ ‐2 033,safetystandards, comply with the safety standard for double insulation,
overvoltageCATIII600Vandpollutionlevel2.Pleaseobserve all operational and safety instructions
otherwisetheprotection provided byinstrumentmaybecompromised.
These standardinstrumentsconformtoUL 61010‐1, 61010 032, 61010 033; ‐ ‐2 ‐ ‐2theseinstrumentsare
certifiedtoCSA no.standardC22.2 61010 033.‐1, 61010 032, 61010IECstandard ‐ ‐2andIECstandard ‐ ‐2
CAT test connected sectionIII:Applicableto andmeasuringcircuits tothedistribution of a building’slow
voltage safetymainsinstallation;beforeuse pleaseoftheseinstruments observeandobeyall instructions.
MA44x 8/16‐en‐GB_V1.0
3
WARNINGS
WARNINGS BODILYidentifyhazardous causeconditionsandactionsthatcould HARMorDEATH.
1. Beforeuse, operation.checktheclampmeterandprobefordamageorabnormal Donotusethemeter
if isprobeinsulationdamage,meter meterdisplayproblems,abnormal functioning,etc. observed.
2. Neverusethe the themeterwith batterycompartmentopen or with meterhousingdisassembledinany
way; otherwise a risk of shock will exist.
3. Whentakingmeasurements,ensurethat and theyourhand fingersarein safeareabehindthefinger
guard.Donottouchbarewireorconnectors, unused inputterminals,orthecircuitundertesttoprevent
electricalshock.
4. Beforetakingmeasurements,the thefunctionswitchmustbesetto correctposition.Toprevent
damagetothemeter, the function switch must not be turned while measurements are taking place.
5. Do DCnotapplyvoltage600VACor orgreater between the clamp meter terminals and ground. Failure
to tofollowtheseinstructionscancauseelectricshockanddamage themeter.
6. 42V Whenmeasuringsignals >DCor > 30VAC pleaserms usecaution electricalastheselevelscancause
shock.
7. Donot measure voltageorcurrenthigherthan the the allowableinput; functionswitchmustbesetto
the the themaximumrangepositionfirstwhen rangeof measuredsignalisunknown.Beforemeasuring
resistance, diode, and andcontinuitypleaseremovepowertothecircuit under test dischargeall
capacitors.
8. Whenthelowbatterysymbolisdisplayed,replaced the batteries promptly to ensure measurement
precision.Removebatteries befromthe themeterif meteristo storedlongerthan60days.
9. Donotservice must serviceor ofmodifytheinternalcircuits themeter.Qualifiedpersonnel themeter
only.
10. Donot notusethemeterinflammableorexplosive environments (gasorvapors).Do usethemeterin
environmentsthat theexceedtheoperationaltemperatureandhumidityspecifications.Donotuse
meterinareas where a strong electromagnetic field is present.
11. Tocleanthemeter,useonly a softdampcloth(neutraldetergentsonly)towipethemeterhousing.Do
notuse underabrasivesor powered on orsolvents.Donotcleanthemeterif it is connectedto a circuit
test;alwayspower OFFthemeter and thedisconnect test leads before cleaning.
12. Useonlythetestprobesprovided.Replacetest testprobeswith better.onesof orthesamerating The
probesaretobeusedformainsmeasurementsCAT CATIIIor IVinaccordancewithIEC61010 031‐ and
shallhave voltage aratingof ofat theleast voltage thecircuittobemeasured.
13. Individualprotectiveequipmentshouldbeusedif inHAZARDOUSLIVEparts theinstallationwhere
measurements accessible.are couldtobecarriedout be
14. Ifthe theequipmentis inused a mannernotspecified by by the themanufacturer, protection provided
equipmentmaybeimpaired.
15. Toreduce of ortherisk fire electric doshock, not expose this product to rain or moisture.
16. Verifythe themeteroperationbymeasuring a knownvoltage. doubt,Ifin have meterserviced.
17. Toavoidfalse that as as thereadings canlead injury, batterytoelectricshockand replace soon low
batteryindicator appears.
18. De‐energizetheinstallationundertestorwear suitable protective clothing when placing or removing
thecurrentclampfrom a testsetup.
19. Donotapply/removethecurrentclamp mayto/fromUNINSULATED HAZARDOUS LIVEconductorswhich
causeelectric electricshock, burn, orarcflash.
Produktspezifikationen
| Marke: | Extech |
| Kategorie: | Multimeter |
| Modell: | MA445 |
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