Extech MA445 Bruksanvisning

Extech Multimeter MA445

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USERMANUAL



ModelMA440400A DMMACClampMeter

ModelMA443 TrueRMS400ACClampMeter DMM

ModelMA445TrueRMS400AAC/DCClampMeterDMM

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  

MA44x 8/16‐en‐GB_V1.0 

Introduction

Thank you forselectingthe Extech EX44x 400A  Series ClampMeter.



The MA440 is a 400AACClampmeterwith a total of  9 functions.



The that MA443 is a 400A True RMSACClampmeter offers10functionsincludingTRMSAC

measurementsandType K Thermocouple



The MA445 is a 400A 11  AC/DC True RMSClampmeterwith functionsincludingDCCurrent, TRMS

ACmeasurements, and Type K Thermocouple.



TheMA44x 4000seriesarehand‐held, countclampmeters. seriesThismeter measures AC/DC

voltage,ACcurrent,DCcurrent (MA445), continuity, resistance,diode, capacitance,temperature

(MA443 MA445),and frequency,anddutycycle.Inaddition,thesemetersofferDisplayhold,MIN‐

MAX(MA443 MA445), Relativeand  mode,NCV(non‐contactvoltage detection), andautomatic

powerOFF.



Inadditionto (Quickthe themeter, packagingincludesInstructionaldocumentation Start),Test

Leads, ‐K typetemperatureprobe(MA443 MA445),and batteries,and a pouch.



This tested calibrated reliabledeviceisshippedfully and and,withproperuse,willprovideyearsof 

service. forPleasevisitour  website (www.extech.com) tocheck thelatestversionofthisUser

Guide,ProductUpdates, CustomerProductRegistration,and Support.

Safety

Toensurethe thesafeoperationandserviceof 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 andIEC/EN61010‐ ‐2 033,safetystandards, 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 standardinstrumentsconformtoUL 61010‐1, 61010 032, 61010 033; ‐ ‐2 ‐ ‐2theseinstrumentsare

certifiedtoCSA no.standardC22.2 61010 033.‐1, 61010 032, 61010IECstandard ‐ ‐2andIECstandard ‐ ‐2

CAT test connected sectionIII:Applicableto andmeasuringcircuits tothedistribution of a building’slow

voltage safetymainsinstallation;beforeuse pleaseoftheseinstruments observeandobeyall instructions.

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MA44x 8/16‐en‐GB_V1.0 

WARNINGS



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

1. Beforeuse, operation.checktheclampmeterandprobefordamageorabnormal Donotusethemeter

if isprobeinsulationdamage,meter meterdisplayproblems,abnormal functioning,etc. observed.

2. Neverusethe the themeterwith batterycompartmentopen or with meterhousingdisassembledinany

way;       otherwise a risk of shock will exist.

3. Whentakingmeasurements,ensurethat and theyourhand fingersarein 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 thefunctionswitchmustbesetto correctposition.Toprevent

damagetothemeter,            the function switch must not be turned while measurements are taking place.

5. Do DCnotapplyvoltage600VACor orgreater        between the clamp meter terminals and ground. Failure

to tofollowtheseinstructionscancauseelectricshockanddamage themeter.

6. 42V Whenmeasuringsignals >DCor > 30VAC pleaserms usecaution electricalastheselevelscancause 

shock.

7. Donot measure voltageorcurrenthigherthan the the allowableinput; functionswitchmustbesetto

the the themaximumrangepositionfirstwhen rangeof measuredsignalisunknown.Beforemeasuring

resistance, diode, and andcontinuitypleaseremovepowertothecircuit under test dischargeall

capacitors.

8. Whenthelowbatterysymbolisdisplayed,replaced      the batteries promptly to ensure measurement

precision.Removebatteries befromthe themeterif meteristo storedlongerthan60days.

9. Donotservice must serviceor ofmodifytheinternalcircuits themeter.Qualifiedpersonnel  themeter

only.

10. Donot notusethemeterinflammableorexplosive environments (gasorvapors).Do usethemeterin

environmentsthat theexceedtheoperationaltemperatureandhumidityspecifications.Donotuse 

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 underabrasivesor powered on orsolvents.Donotcleanthemeterif it is     connectedto a circuit 

test;alwayspower OFFthemeter and thedisconnect test   leads before cleaning.

12. Useonlythetestprobesprovided.Replacetest testprobeswith better.onesof orthesamerating  The 

probesaretobeusedformainsmeasurementsCAT CATIIIor IVinaccordancewithIEC61010 031‐ and

shallhave voltage aratingof ofat theleast voltage thecircuittobemeasured.

13. Individualprotectiveequipmentshouldbeusedif inHAZARDOUSLIVEparts theinstallationwhere

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

14. Ifthe theequipmentis inused  a mannernotspecified by by the themanufacturer, protection provided  

equipmentmaybeimpaired.

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

16. Verifythe themeteroperationbymeasuring a knownvoltage. doubt,Ifin have meterserviced.

17. Toavoidfalse that as as thereadings canlead injury, batterytoelectricshockand replace  soon  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 mayto/fromUNINSULATED HAZARDOUS LIVEconductorswhich 

causeelectric electricshock,  burn, orarcflash.



Produktspecifikationer

Varumärke:	Extech
Kategori:	Multimeter
Modell:	MA445
Färg på produkten:	Grijs
Vikt:	1260 g
Beeldscherm:	LCD
Upplösning:	320 x 160 Pixels
Stemcodecs:	G.711, G.722, G.729
Mikrofon avstängd:	Ja
står fast vid:	Ja
Snabbval:	Ja
Antal Ethernet LAN (RJ-45)-portar:	2
Certifiering:	FCC, RoHS, CE
Anslutning för nätadapter:	Ja
Brusreducering:	Ja
Säkerhetsalgoritmer som stöds:	HTTPS
Förvaringstemperatur:	-40 - 70 °C
Nätverksprotokoll som stöds:	SNTP/FTP/TFTP/HTTP
Power over Ethernet (PoE):	Ja
Telefonbokskapacitet:	- entries
Ringa igen:	Ja
Mått (B x D x H):	265 x 190 x 150 mm
Full duplex:	Ja
Mikrofonfrekvens:	150 - 7000 Hz
Drifttemperatur (TT):	10 - 40 °C
Relativ luftfuktighet i drift (VV):	20 - 85 procent
Typ produkt:	IP Phone
Harmoniserad systemkod (HS):	85171800
Uppringning med lur på:	Ja