Extech Instruments MA260 Manuel utilisateur

USERGUIDE

200ATrueRMSOpenJawClampMeterwith

AutoSensingTechnology

ModelMA260

www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

Introduction

ThankyouforselectingtheExtechMA260200ATrueRMSOpenJawClampMeter.TheMA260

incorporatesAutoSensingwherethemeasurementtypeisautomaticallysensedandconfigured,

noneedtoturnadialtoselectthemeasurementtypeorrange.ForACVoltage,theAuto‐sense

featurealsoevaluatesinputsignalsandadjuststheInputImpedancetoeliminateeffectsofghost

voltages.

TheMA260measuresACcurrent,AC/DCVoltage,Resistance,Continuity,andDiodeandoffers

extra‐largedisplaydigits,datahold,andadisplaybacklightfunction.Thenon‐contactVolt‐

Detectionfeature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

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.

Thetimedelaythatresultsfromthemeter’sautomaticsensingcircuit(1to2seconds)maycauseGFCI

circuitstoresetandbreakerstotrip.

ItisnotrecommendedtousecalibrationequipmenttotesttheMA260.Calibratorscanbedamagedif

usedtotesttheMA260.

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.

Alwaysuseproperterminals.

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current.Ifindoubt,havethemeterserviced.

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

Whenusingtestleadsorprobes,pleasekeepfingersbehindthefingerguards.

Removetestleadsfromthemeterbeforeopeningthebatterycompartmentorthemetercase.

Usecautionwithvoltagesabove30VACrms,42VACpeak,or60VDC.Thesevoltagesposeashockhazard.

ProbeassembliestobeusedforMAINSmeasurementsmustberatedasappropriateformeasurement

CategoryIIIorIVaccordingtoIEC61010‐031andmusthaveavoltageratingofatleastthevoltageof

thecircuittobemeasured.

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flexiblecurrentprobefromatestsetup.

Donotapply/removetheflexiblecurrentprobeto/fromUNINSULATEDHAZARDOUSLIVEconductors

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

www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

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.

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

MA260‐en‐GB_V1.15/15

123456

121314

Description



MeterDescription

1. Transformercurrentmeasurementjaw

2. Non‐contactVolt‐DetectionandAC/DCcontactvoltageindicator

3. BacklitMulti‐functionDisplay

4. Power/Holdbutton

5. COM(‐)Terminal

6. Voltage,Resistance(+)InputTerminal

7. Backlightbutton

8. Finger‐HandGuard

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



DisplayDescription

1. Automaticmeasurementdetect

2. Lowimpedancemodeisalwaysactive

3. DataHold

4. Diodetest

5. Continuityalert

6. DCmeasurement

7. ACmeasurement

8. Voltage

9. Amperes

10. BatteryStatusinPercent

11. Resistance/Continuityohms

12. Kiloprefix

13. Maindisplaydigits

14. Batterystatus

15. Minussign

16. DANGER.Livevoltagedetected

17. AutoPowerOFF

www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

Operation

CAUTIONS



ReadandunderstandallWARNINGandCAUTIONstatementslistedinthesafetysectionofthis

manualpriortouse.NotethatthemeterPowersupintheResistance/Continuitymode.

PoweringtheMeter

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

2. PressandholdthePower‐HoldbuttonuntilOFFappearsonthedisplay,releasethepower

buttontopoweroffthemeter.

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

minutesofinactivity.Todisablethisfeatureseethefollowingsection.

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

thedisplayshows<10%batterypower.

DisableAutoPowerOFF

Note: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powerbuttonuntilAPOflashesthree(3)times.

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

APOdisplayiconisalwaysshowingwhentheAPOfeatureisactive.

Self‐TestandRelatedCautions

ThemeterperformsaSelf‐Testroutinewhileitispoweringup.Abatterystatuspercentagevalue

appearsonthescreen,ifitreads10%orlower,replacethebatteries.

CAUTION:Donottakeameasurementwhilepoweringupthemeter.Doingsowillcausea

Self‐TestfailureandFAILwilldisplay.

CAUTION:DonotusethemeterifFAILisdisplayedontheLCD.Powerdownthemeter

andstartagain.Donotattemptmeasurementsuntilthemeterisfullypoweredup.

CAUTION:Ifthemeterisusedinthevicinityofequipmentthatisgenerating

electromagneticinterference,thedisplaymaybecomeunstableorthemeasurementdisplayed

maybewidelyinaccurate.

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

MA260‐en‐GB_V1.15/15

VoltageMeasurements

WARNING:Donotapply>1000VAC/DCbetweenthemeter’sterminalsandearthground

CAUTION:Whenconnectingthetestleadstothecircuitordeviceundertest,connectthe

blackleadbeforethered;whenremovingthetestleads,removetheredbeforetheblacklead.



ACVoltageMeasurements

WARNINGS:

Thetimedelaythatresultsfromthemeter’sautomaticsensingcircuit(1to2seconds)maycauseGFCI

circuitstoresetandbreakerstotrip.

ItisnotrecommendedtousecalibrationequipmenttotesttheMA260.Calibratorscanbedamagedif

usedtotesttheMA260.

1. Inserttheblacktestleadbananaplugintothenegative(COM)

jackandtheredtestleadbananaplugintothepositive(V/Ω)

jack.

2. Touchthetestprobetipstothecircuitundertest.

3. NotethatbecauseoftheAuto‐Sensefunctionthemeterstarts

inthecontinuity(resistance)modeand,afterseveralseconds,

enterstheVoltagemode.Thistimedelaymayprecludethe

meter’suseonsomeapplications,pleaseusecaution.

4. Readthevoltageinthedisplay.Thedisplaywillindicatethe

properdecimalpointandvalue.

5. NotethatthevoltagedetectLEDmaylightwhenACVvoltageis

measured.Themeteriscapableofmeasuringvoltagefrom

1.3VACto1000VAC.Signalsbelow1VACwilltriggerthemeter’s

alertbeeper.



InputImpedance

Theinputimpedanceisgreaterthanorequalto6Kohmsforinputvoltagesupto30V.

Theinputimpedanceincreaseswithinputvoltagetoapproximately420Kohmsat1000VAC.

ForACVoltage,theAuto‐sensefeatureevaluatesinputsignalsandadjuststheInput

Impedancetoeliminateeffectsofghostvoltages.

www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

DCVoltageMeasurements

1. Inserttheblacktestleadbananaplugintothenegative(COM)jack

andtheredtestleadbananaplugintothepositive(V/Ω)jack.

2. Touchthetestprobetipstothecircuitundertest.Besureto

observethecorrectpolarity(redleadtopositive,blackleadto

negative).

3. Readthevoltageinthedisplay.Thedisplaywillindicatetheproper

decimalpointandvalue.Ifthepolarityisreversed,thedisplaywill

show(‐)minusbeforethevalue.

4. ThemeteriscapableofdetectingDCvoltagesfrom+2.1Vto

+1000Vandfrom‐0.7Vto‐1000V.

5. Themeter’salertbeeperwillsoundashorttoneforpositiveDC

voltagemeasurementsandalongtonefornegative

measurements.

ACCurrentMeasurements

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

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

1. Positiontheclamparoundoneconductorwiththeconductorpositionedasfarintotheclamp

jawaspossible.Seeaccompanyingdiagramsforcorrectandincorrectuse.

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



www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

ResistanceMeasurements

1. Inserttheblacktestleadbananaplugintothenegative(COM)jack.

Inserttheredtestleadbananaplugintothepositive(V/Ω)jack.

2. Touchthetestprobetipsacrossthecircuitorpartundertest.Itis

besttodisconnectonesideofthepartundertestsotherestofthe

circuitwillnotinterferewiththeresistancereading.

3. Readtheresistanceinthedisplay.Thedisplaywillindicatethe

properdecimalpointandvalue.

ContinuityCheck

1. Inserttheblackleadbananaplugintothenegative(COM)jack.

Inserttheredtestleadbananaplugintothepositive(V/Ω)jack.

2. Touchthetestprobetipstothecircuitorwireyouwishto

check.

3. Iftheresistanceislessthanapproximately25Ω,theaudible

signalwillsound.Ifthecircuitisopen,thedisplaywillindicate

“OL.”.

4. Notethatthebeeperisoffwhentheresistanceis>400Ω.

Howeverthebeepermaysoundwhentheresistanceis

between25Ωand400Ω.

DiodeTest

1. Inserttheblacktestleadbananaplugintothenegative(COM)jack

andtheredtestleadbananaplugintothepositive(V/Ω)jack.

2. Touchthetestprobestothediodeundertest.Forwardvoltagewill

indicate0.4to0.8VReversevoltagewillindicate“OL”.Shorted

deviceswillindicatenear0ohmsandbeep;anopendevicewill

indicate“OL”inbothpolarities.



www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

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.Ifnosignalissensed,themeterwillflashtheHOLDiconseveral

timesandautomaticallyexittheDataHoldMode.

FromtheDataHoldmode,pressthedataholdbuttontoreturntonormaloperation.TheHOLD

iconwillswitchOFF.



Note:Dataholdisnotavailablewhennoinputisdetected.



Themeter’sbeeperwillsoundcontinuouslyandtheLCDwillflashinthefollowingtwoDataHold

instances:

1. Themeterdetectsasignaldifferentthantheheldreading.

2. Thedetectedsignalisthesameunitofmeasureastheheldreadingbutis50countsgreater

thanorlessthantheheldreading.



Non‐contactVolt‐DetectionFeature

TheNon‐contactVolt‐DetectionLEDilluminateswhenthe

meterisplacedclosetoanelectricfield.IftheLEDisnotlit,

thereisstillapossibilitythatvoltageispresenthowever.

Pleaseusecaution.



www. .com information@itm.com1.800.561.8187

MA260‐en‐GB_V1.15/15

Maintenance

WARNING:Toavoidelectricalshock,disconnectthemeterfromanycircuit,removethe

testleadsfromtheinputterminals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small(middle)Phillipsheadscrewatthebackofthemeter.

2. Openthebatterycompartment

3. Replacethetwo1.5VAAA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

Table des matières

Autres manuels Extech Instruments Instrument de mesure

Extech Instruments

Extech Instruments DT40M Manuel utilisateur

Extech Instruments

Extech Instruments HDV7C-A4-60-1 Manuel utilisateur

Extech Instruments

Extech Instruments MA3110 Manuel utilisateur

Extech Instruments

Extech Instruments MO290 Manuel utilisateur

Extech Instruments

Extech Instruments 380363 Manuel utilisateur

Extech Instruments

Extech Instruments MO220 Manuel utilisateur

Extech Instruments

Extech Instruments 407445 Manuel utilisateur

Extech Instruments

Extech Instruments CO260 Manuel utilisateur

Extech Instruments

Extech Instruments EA30 Manuel utilisateur

Extech Instruments

Extech Instruments UV505 Manuel utilisateur

Extech Instruments

Extech Instruments ExStik RE300 Manuel utilisateur

Extech Instruments

Extech Instruments EX845 Manuel utilisateur

Extech Instruments

Extech Instruments 407119 Manuel utilisateur

Extech Instruments

Extech Instruments EMF510 Manuel utilisateur

Extech Instruments

Extech Instruments EasyView EA33 Manuel utilisateur

Extech Instruments

Extech Instruments 445580 Manuel utilisateur

Extech Instruments

Extech Instruments 45168CP Manuel utilisateur

Extech Instruments

Extech Instruments MO297 Manuel utilisateur

Extech Instruments

Extech Instruments MA410T Manuel utilisateur

Extech Instruments

Extech Instruments 461920 Manuel utilisateur

Extech Instruments

Extech Instruments 475040 Manuel utilisateur

Extech Instruments

Extech Instruments EA30 Manuel utilisateur

Extech Instruments

Extech Instruments RPM40 Manuel utilisateur

Extech Instruments

Extech Instruments 407820 Manuel utilisateur

Manuels Instrument de mesure populaires d'autres marques

Suaoki

Suaoki D40 Manuel utilisateur

Elster

Elster BK-G1.6 Manuel utilisateur

Endress+Hauser

Endress+Hauser Deltabar FMD71 Manuel

Duratool

Duratool D03128 Manuel utilisateur

Vega

Vega VEGAPULS 65 Manuel utilisateur

Tonghui

Tonghui TH2618B Manuel utilisateur

Tenmars

Tenmars TM-801 Manuel utilisateur

MSR

MSR 145 Manuel utilisateur

TPS

TPS WP-82 Manuel utilisateur

ELMETRON

ELMETRON CP-511 Manuel utilisateur

PCB Piezotronics

PCB Piezotronics 003C30 Manuel utilisateur

Tenma

Tenma 72-10465 Manuel utilisateur

Endress+Hauser

Endress+Hauser Proline Promag 50 Caractéristiques techniques

Siemens

Siemens SITRANS F Coriolis FCT030 Manuel de la liste des pièces

KLINGER

KLINGER CMF V Series Manuel utilisateur

EXFO

EXFO FTB-2 Manuel d'exploitation et d'entretien

Keysight

Keysight M8290A Manuel utilisateur

ADTEK

ADTEK MW-5 Manuel utilisateur