Extech Instruments MA443 User Manual

MA44x‐en‐GB_V1.08/16
3
WARNINGS

WARNINGSidentifyhazardousconditionsandactionsthatcouldcauseBODILYHARMorDEATH.
1. Beforeuse,checktheclampmeterandprobefordamageorabnormaloperation.Donotusethemeter
ifprobeinsulationdamage,meterdisplayproblems,abnormalmeterfunctioning,etc.isobserved.
2. Neverusethemeterwiththebatterycompartmentopenorwiththemeterhousingdisassembledinany
way;
otherwiseariskofshockwillexist.
3. Whentakingmeasurements,ensurethatyourhandandfingersareinthesafeareabehindthefinger
guard.Donottouchbarewireorconnectors,unusedinputterminals,orthecircuitundertesttoprevent
electricalshock.
4. Beforetakingmeasurements,the
functionswitchmustbesettothecorrectposition.Toprevent
damagetothemeter,thefunctionswitchmustnotbeturnedwhilemeasurementsaretakingplace.
5. Donotapplyvoltage600VACorDCorgreaterbetweentheclampmeterterminalsandground.Failure
tofollowtheseinstructionscan
causeelectricshockanddamagetothemeter.
6. Whenmeasuringsignals>42VDCor>30VACrmspleaseusecautionastheselevelscancauseelectrical
shock.
7. Donotmeasurevoltageorcurrenthigherthantheallowableinput;thefunctionswitchmustbesetto
the
maximumrangepositionfirstwhentherangeofthemeasuredsignalisunknown.Beforemeasuring
resistance,diode,andcontinuitypleaseremovepowertothecircuitundertestanddischargeall
capacitors.
8. Whenthelowbatterysymbolisdisplayed,replacedthebatteriespromptlytoensuremeasurement
precision.Removebatteriesfromthe
meterifthemeteristobestoredlongerthan60days.
9. Donotserviceormodifytheinternalcircuitsofthemeter.Qualifiedpersonnelmustservicethemeter
only.
10. Donotusethemeterinflammableorexplosiveenvironments(gasorvapors).Donotusethemeter
in
environmentsthatexceedtheoperationaltemperatureandhumidityspecifications.Donotusethe
meterinareaswhereastrongelectromagneticfieldispresent.
11. Tocleanthemeter,useonlyasoftdampcloth(neutraldetergentsonly)towipethemeterhousing.Do
notuseabrasivesorsolvents.Donot
cleanthemeterifitispoweredonorconnectedtoacircuitunder
test;alwayspowerthemeterOFFanddisconnectthetestleadsbeforecleaning.
12. Useonlythetestprobesprovided.Replacetestprobeswithonesofthesameratingorbetter.Thetest
probesareto
beusedformainsmeasurementsCATIIIorCATIVinaccordancewithIEC61010‐031and
shallhaveavoltageratingofatleastthevoltageofthecircuittobemeasured.
13. IndividualprotectiveequipmentshouldbeusedifHAZARDOUSLIVEpartsintheinstallationwhere
measurementsareto
becarriedoutcouldbeaccessible.
14. Iftheequipmentisusedinamannernotspecifiedbythemanufacturer,theprotectionprovidedbythe
equipmentmaybeimpaired.
15. Toreducetheriskoffireorelectricshock,donotexposethisproducttorainormoisture.
16. Verify
themeteroperationbymeasuringaknownvoltage.Ifindoubt,havethemeterserviced.
17. Toavoidfalsereadingsthatcanleadtoelectricshockandinjury,replacebatteryassoonasthelow
batteryindicatorappears.
18. De‐energizetheinstallationundertestorwearsuitableprotectiveclothingwhen
placingorremoving
thecurrentclampfromatestsetup.
19. Donotapply/removethecurrentclampto/fromUNINSULATEDHAZARDOUSLIVEconductorswhichmay
causeelectricshock,electricburn,orarcflash.
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Extech Instruments MA443 Specifications

General

Brand	Extech Instruments
Model	MA443
Category	Measuring Instruments
Language	English