Extech Instruments MA140 Bedienungsanleitung

USERGUIDE

TrueRMS300AACMiniClampMeterwithNon‐

ContactVoltageDetector

ModelMA140

www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

Introduction

ThankyouforselectingtheExtechMA140300AACTrueRMSMiniClampMeterwithNon‐Contact

VoltageDetector.TheMA140issmallinsizebutruggedinperformance.



TheMA140measuresACcurrentto300AandoffersaSmartDataHoldfeature,displayBacklight,

In‐rushCurrentmode,LowPassFiltering(LPF),andanon‐contactVolt‐Detectionfeaturethat

senseselectricalsourcessafely.



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Information–PleaseReadFirst

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voltage.Ifindoubt,havethemeterserviced.

Donotapplymorethantheratedvoltage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.

Pleasekeepfingersandhandsbehindthefingerguards.

Donotexposemetertoextremesintemperatureorhighhumidity.

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

thecurrentclampfromatestsetup.

Donotapply/removethecurrentclampto/fromUNINSULATEDHAZARDOUSLIVEconductorswhichmay

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



www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

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.

Riskofelectricalshock

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

DC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

www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

123 45

Description



MeterDescription

1. Transformercurrentjaw

2. Finger‐HandGuard

3. Jawopeningtrigger

4. LCDMulti‐functiondisplay

5. Push‐buttoncontrols



Notethatthebatterycompartmentislocatedonbackofmeter



DisplayDescription

1. Non‐ContactVoltDetecticon

2. MainDisplaydigits

3. In‐RushCurrentmode

4. LowPassFilter

5. DataHold

6. ACMeasurement

7. Amperes(current)

8. Batterystatusicon

9. Minus(negative)sign



ControlButtonDescription

Pressfor>2secondstoaccessIn‐rushCurrentmode

PresstoaccessLowPassFiltermode

Presstoaccesscurrentmeasurementmode

PresstoaccessVoltagedetectmode

PresstoswitchDataHoldonoroff

PresstopowerONthemeter.Pressandhold>2secondstoswitchOFF

Presstotoggledisplaybacklightonandoff

www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

Operation

CAUTIONS



ReadandunderstandalloftheSafetystatementslistedinthesafetysectionofthismanual

priortouse.

PoweringtheMeter

1. PressthePower‐Backlightbuttontopowerthemeter.Checkthebatteriesiftheunitfailsto

powerON.

2. PressandholdthePowerbuttonformorethan2secondstopowerOFFthemeter.

3. ThemeterhasanAutoPowerOFFfeature(APO)wherethemeterswitchesOFFafter20

minutesofinactivity.TodisableAPO,refertothenextsection.

Note:Themeterdisplaysthebatterycapacitywhenpoweringup.

DisableAutoPowerOFF

ThemeterwillautopowerOFFafter20minutesofinactivity.Todefeatthisfeature,followthe

stepsbelow.

1. WiththemeterOFF,pressandholdthe‘V’buttonand,whilecontinuingtoholdthe‘V’

button,pressthepowerbutton.

2. ThedisplaywillshowAOFF.

3. Releaseallofthebuttons.

4. TheAutoPowerOFFfunctionwillnowbedisableduntilthenextcycleofpower.

DisplayBacklight

WiththemeterpoweredON,pressthebacklightbuttontoswitchthebacklightONorOFF.Note

thatexcessiveuseofthebacklightwillshortenthebatterylife.

www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

ACCurrentMeasurements

WARNING:Donothandlethemeterabovethefinger/handguardbarrier.

CAUTION:ObserveCATIII600VwithrespecttoEarthGroundfortheJaw.

1. Pressthe‘A’buttontoaccesstheACCurrentmeasurementmode.TheAsymbolwillappear

onthedisplayinthelowerrighthandsideindicatingAmperes(Amps).

2. Pressthejawtriggertoopentheclampjaw.

3. Positiontheclamparoundonlyoneconductor.Seeaccompanyingdiagramsforcorrectand

incorrectuse.

4. Readthecurrentinthedisplay.Thedisplaywillindicatetheproperdecimalpointandvalue.



www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

InrushCurrentMode

IntheInrushmodethemeterwaitsuntilatleast5Aisdetectedandthenstartsa100mssample

windowinwhichtocaptureaninrushcurrentRMSvalue.Refertoillustrationbelow.

1. PressandholdtheINRUSHbuttonfor>2secondstoaccesstheInrushCurrentmode.

2. ThedisplaywillshowtheINRUSHicon.

3. Whenready,takeacurrentmeasurement.Themeterwillcapturethehighestreading

detectedduringa100mswindow.Notethatthe100mswindowdoesnotopenuntilatleast

5Aisdetected.

4. ToexittheInrushCurrentmodepresstheINRUSHbuttonagainmomentarily.TheINRUSH

iconwillswitchOFF.



100ms Sample Window

Measured Inrush

Sample time

trigger

Inrush

Button

Press

Current

Start Stop

hreshold



LowPassFilter

TheLowPassFiltermodeoffershighfrequencyrejectionwhenmeasuringVariableSpeedDrives.

TheLowPassFiltermodeoffersacut‐offfrequencyof160Hz(approx.)withanattenuation

characteristicof‐24dbperoctave(approx.).

1. MomentarilypresstheLPFbuttontoaccesstheLPFmode

2. TheLPFdisplayiconisshownonthedisplayintheLPFmode

3. PresstheLPFbuttonagaintoexittheLPFmode,theLPFiconwillswitchOFF



www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

Volt‐DetectionFeature

Themeter’saudiblebeepertriggersandthedisplayshows

dasheswhenthemetersensesanelectricalvoltagefield.The

highertheelectricalfieldstrengththegreaterthenumberof

dashesdisplayedandthefastertherateoftheaudiblebeeps.

Ifthemeterdoesnotemitatoneordisplaydashesinthis

mode,thereisstillthepossibilitythatvoltageispresent.Please

usecaution.

1. Pressthe‘V’buttontoaccesstheNon‐ContactVoltage

Detectmode.

2. Notethevoltagedetectiondisplayiconsasshowninthe

Descriptionsectionofthisguide.

3. Placethemeternearasourceofelectricalenergy.Thetip

oftheclampoffersthehighestsensitivity.

4. Notetheaudiblebeepingandthedashdisplays.

SmartDataHold

TofreezetheLCDmeterreading,presstheHOLDbutton.Whiledataholdisactive,theHOLD

displayiconappearsontheLCD.PresstheHOLDbuttontoreturntonormaloperation.The

HOLDiconwillswitchOFF.

Themeter’sbeeperwillsoundandthedisplaywillflashcontinuouslyifthedetectedsignalis50

countsgreaterthantheheldreading.



www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

Maintenance

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

themeterbeforeopeningthecase.Donotoperate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

1. RemovethePhillipsheadscrewatthelowerbackofthemeter.

2. Openthebatterycompartment.

3. ReplacethetwoLR44batteriesobservingcorrectpolarity.

4. Re‐assemblethemeterbeforeuse.

5. Safety:Pleasedisposeofbatteriesresponsibly;neverdisposeofbatteriesinafire,batteries

mayexplodeorleak;nevermixbatterytypes,installnewbatteriesofthesametype.



Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.

Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriate

collectionsites,theretailstorewherethebatterieswerepurchased,or

whereverbatteriesaresold.

Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris

obligatedtotakeend‐of‐lifedevicestoadesignatedcollectionpointforthe

disposalofelectricalandelectronicequipment.



www. .com information@itm.com1.800.561.8187

MA140‐en‐GB_V1.01/15

Specifications

ELECTRICALSPECIFICATIONS

FunctionRangeResolutionAccuracy(ofreading)50/60Hz

ACCurrent

60.00A0.01

±(2.0%+5digits)

300.0A0.1

Allspecificationsarevalidfrom10%to100%ofeachrange

TheLCDdisplays0countswhenthereading<10counts

LowPassFilter

(LPF)

60.00A0.01

±(3.5%+5digits)

300.0A0.1

Allspecificationsarevalidfrom10%to100%ofeachrange

TheLCDdisplays0countswhenthereading<10counts

Cut‐offfrequency(‐3dB):160Hz

Attenuationcharacteristic:‐24dbperoctave(approximately)

FunctionRangeResolutionAccuracy(ofreading)

InrushCurrent

300.0A0.1 ±(3.5%+5digits)

Integrationtime:100ms

Triggercurrent(threshold):5A

Volt‐Detection80V~600VACn/an/a

Thetipoftheclampofferstheoptimumsensitivity

Notes:

Clamppositionerror:±2%ofreading.Maximum±4%nearclampjawopening.

AdjacentConductionInfluenceofJaw:<0.08A/A

Accuracyisgivenas±(%ofreading+leastsignificantdigit)at23C±3Cwithrelative

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

ACAspecificationsarefor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

www. .com information@itm.com1.800.561.8187

Inhaltsverzeichnis

Andere Extech Instruments Messgerät Handbücher

Extech Instruments

Extech Instruments ExStik PH100 Bedienungsanleitung

Extech Instruments

Extech Instruments 380950 Bedienungsanleitung

Extech Instruments

Extech Instruments 461920 Bedienungsanleitung

Extech Instruments

Extech Instruments SDL800-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments SP505 Bedienungsanleitung

Extech Instruments

Extech Instruments 42265 Bedienungsanleitung

Extech Instruments

Extech Instruments PQ3350 Bedienungsanleitung

Extech Instruments

Extech Instruments PH100 Bedienungsanleitung

Extech Instruments

Extech Instruments EA80 Bedienungsanleitung

Extech Instruments

Extech Instruments MA3110 Bedienungsanleitung

Extech Instruments

Extech Instruments CG304 Bedienungsanleitung

Extech Instruments

Extech Instruments UM200 Bedienungsanleitung

Extech Instruments

Extech Instruments MO220 Bedienungsanleitung

Extech Instruments

Extech Instruments MO290 Bedienungsanleitung

Extech Instruments

Extech Instruments SL250W Bedienungsanleitung

Extech Instruments

Extech Instruments VFM200 Bedienungsanleitung

Extech Instruments

Extech Instruments EX830 Bedienungsanleitung

Extech Instruments

Extech Instruments EC100 Bedienungsanleitung

Extech Instruments

Extech Instruments 407510 Bedienungsanleitung

Extech Instruments

Extech Instruments ExStik EC500 Bedienungsanleitung

Extech Instruments

Extech Instruments EasyView EA30 Bedienungsanleitung

Extech Instruments

Extech Instruments 407123 Bedienungsanleitung

Extech Instruments

Extech Instruments AN300 Bedienungsanleitung

Extech Instruments

Extech Instruments PH220-C Bedienungsanleitung

Beliebte Messgerät Handbücher anderer Marken

Suaoki

Suaoki D40 Bedienungsanleitung

Elster

Elster BK-G1.6 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Deltabar FMD71 Handbuch

Duratool

Duratool D03128 Bedienungsanleitung

Vega

Vega VEGAPULS 65 Bedienungsanleitung

Tonghui

Tonghui TH2618B Bedienungsanleitung

Tenmars

Tenmars TM-801 Bedienungsanleitung

MSR

MSR 145 Bedienungsanleitung

TPS

TPS WP-82 Bedienungsanleitung

ELMETRON

ELMETRON CP-511 Bedienungsanleitung

PCB Piezotronics

PCB Piezotronics 003C30 Bedienungsanleitung

Tenma

Tenma 72-10465 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Proline Promag 50 Technische Daten

Siemens

Siemens SITRANS F Coriolis FCT030 Stücklistenhandbuch

KLINGER

KLINGER CMF V Series Bedienungsanleitung

EXFO

EXFO FTB-2 Bedienungs- und Wartungshandbuch

Keysight

Keysight M8290A Bedienungsanleitung

ADTEK

ADTEK MW-5 Bedienungsanleitung