Extech Instruments 381676A Bedienungsanleitung

USERGUIDE



PenMultimeterwithVoltageDetector



Model381676A



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

Introduction

ThankyouforselectingtheExtechModel381676A.ThisinstrumentmeasuresAC/DCVoltage

andCurrent,Resistance,Diode,Continuity,Logic,andincludesanon‐contactVoltageDetector

(NCV).FeaturesincludeMAXHold,DataHold,AutomaticPowerOFF(APO),andAuto/Manual

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

ofreliableservice.PleasevisittheExtechInstrumentswebsite(www.extech.com)tocheckfor

thelatestversionofthisUserGuide.



Safety

WARNING:Improperuseofthisdevicecanresultinelectricshockordamagetothe

meter.Followallsafetyguidelinespresentedinthismanualandtheusualsafety

precautionsusedwhenworkingwithelectricalcircuits.



ThisinstrumentconformstoGB/T13978‐92fordigitalMultimetertechnicalstandards,aswell

asGB4793.1‐1995(IEC‐61010‐1:2001)safetystandardsforelectronicmeasuringinstruments

withasafetycategoryofCATIII600Vandpollutiondegree2.



PreliminarySafety

Whenusingthemeter,observeallnormalsafetyrulesconcerning:

Protectionagainstthedangersofelectricalcurrent

Protectionofthemeteragainstmisuse

Whenthemeterisdelivered,checkfortransitdamage.Whencheckingvoltage,alwaystestthe

meteronaknownlivecircuitfirst.Testleadsmustbeingoodcondition.Beforeuse,verifythat

thetestleadinsulationisintactandfreefromleadwireexposureorotherdamage.Useonlythe

suppliedtestleads.

Safetyduringuse

Besuretosettheappropriatefunctionandrangebeforeuse

Neverexceedthelimitsindicatedinthespecificationtableofthismanual.

Nevertouchprobes,testleads,oralligatorclipwhenconnectedtolivecircuit.

Donotmeasurevoltageonterminalsthatexceed600Vaboveearthground.

Alwaysusecautionwhenworkingwithvoltagesabove60VDCor30VACrms.Keepfingersbehindprobe

barrierwhentakingmeasurements.

Neverconnecttestleadsacrossavoltagesourcewhiletherotaryswitchisintheresistance,continuity,or

diodemodeofoperation.

Neverperformresistance,continuity,ordiodetestsonlivecircuits.

Whentakingnon‐contactvoltagemeasurementsensurethatthepositivetestleadisNOTexposedand

thatthenegative(common)testleadisnotconnectedtothebottomofthemeter.

Beforechangingfunctionsusingtherotaryfunctiondial,besuretodisconnectthemeter’stestleads

fromanycircuitundertest.

Neverusethemeterinanexplosiveenvironmentorwheredust,dirt,orsteamexists.

Neverusethemeterifthehousingorbatterycompartmentisopen.

Donotstoremeterindirectsunlight,hightemperature/humidity,orcondensation.

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

equipmentmaybeimpaired.

ALWAYSdischargefiltercapacitorsinpowersuppliesanddisconnectthepowerwhenmakingresistance

ordiodetests.

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

SafetySymbols

Thissymboladjacenttoanothersymbol,terminaloroperatingdeviceindicatesthatthe

operatormustrefertoanexplanationintheOperatingInstructionstoavoidpersonal

injuryordamagetothemeter.

Thissymbolindicatesthatadeviceisprotectedthroughoutbydoubleinsulationor

reinforcedinsulation.

Thissymboladvisestheuserthattheterminal(s)somarkedmustnotbeconnectedtoa

circuitpointatwhichthevoltagewithrespecttoearthgroundexceeds600V.

ControlsandJacks

1. Positivetestprobe(+)

2. Removableprobecover

3. NCValertLEDindicator

4. Logic(High/Low)LEDIndicators

5. Fingerguard

6. Rotaryfunctionswitch

7. Range(R)button

8. DataHold(H)button

9. MaximumHold(MAX)button

10. Mode(M)button

11. NCV(non‐contactvoltdetector)button

12. LCDdisplay

13. JackforCommon(negative)testlead

14. Common(negative)testlead



Note:Thebatterycompartmentislocatedontherearofthe

instrument



DisplaySymbols

•)))AudibleContinuityVVolts

DiodefunctionOhms

LowbatteryD.HDataHold

µmicro(10‐12)AAmperes

mmilli(10‐3)(volts)DCDirectcurrent

kkilo(103)ohmsACAlternatingcurrent

MMeg(106)ohmsM.HMaximumHold

910

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

ButtonDescriptions

ButtonOverview

BUTTONMODEDESCRIPTION

H(DataHold)AnyModePresstoholdareadingonthedisplay.

Pressandholdwhileturningthe

meterontodefeatAPO

R(Range)V,A,PresstoManuallyRange.Pressand

holdtoreturntoAUTORange

MAX(MaximumHold)AnyModePresstoholdtheMaximumreadingon

thedisplay

NCV(Non‐contactVoltageDetectorAnyModePressandholdforNon‐Contact

VoltageDetector(settheFunction

switchtoanypositionotherthanOFF)

M(Mode)V,A,,SwitchbetweenACandDC

Voltage/Current.Holddowntodo

Logicleveltesting.Switchbetween

resistance,diode,andcontinuity

ButtonDetails

DATAHOLD(H)Button

Tofreezeadisplayedreading,presstheDATAHOLD(H)button.Thereadingwillfreezeandthe

D.HdisplayiconwillbevisibleontheLCD.Toreleasethedisplay,presstheDATAHOLD(H)

buttonagain.TheD.Hindicatorwillswitchoffandthedisplaywillagainshowrealtimereadings.

MAXIMUMHOLD(MAX)Button

Todisplayonlythehighestreading,presstheMAXbutton.TheM.Hdisplayiconwillbevisible

onthedisplaywhileintheMaxHoldmode.Now,thedisplaywillonlychangewhenahigher

readingthanthedisplayedreadingisencountered.Toreturntonormaloperation,pressthe

MAXbuttonagain(theM.Hdisplayiconwillswitchoff).

MODE(M)BUTTON

TheMode(M)buttonisusedtoselectACorDCwhileintheVOLTAGE(V)orCURRENT(mA)

modes.TheMode(M)buttonisusedtoselectdiode(),Continuity(),orResistance().

PressandholdtheMode(M)buttontotakeLOGICtestswhileintheLOGICmode.

RANGE(R)Button

Themeterautomaticallyselectstheoptimumrange;however,themeter’srangescanbe

selectedmanually.WhenusingtheRange(R)buttontomanuallyselectarange,startwiththe

highestrangeandthenselectsuccessivelylowerrangesuntilthedesiredrangeisreached.The

decimalplacewillmovewitheachpressoftheRANGEbutton.PressandholdtheRange(R)

buttontoreturntotheAUTORangemode.

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

TestLeadNotes

Thesuppliedblacktestleads(standardtestleadandalligatorclipprobe)haveprotectiveplugs

thatmustberemovedbeforebeinginsertedinthebottomofthemeter.Thisprotective

apparatusmustberemovedfromtheendoftheleadthatplugsintothemeter.

Thepositive(+)redprobecoverisusedwhenmakingCategoryIIIorhighermeasurements.

TwisttoremovethisprobecoverwhenmakingCategoryIIorlowermeasurements.



MaximumInputLimits



MeasurementsInputLimits

VoltageDCorAC200mVrange:250VDCorACrms

2~600Vrange:600VDCorACrms

CurrentDCorACFuseprotection(FF400mA/600V)

Logic,Resistance,Continuity,andDiode250VDCorACrms



AutomaticPowerOFF(APO)

Themeterisequippedwithanautomaticpowerofffeaturetopreservebatteryenergy.After14

minutesofinactivitythemeterwillemit5shortbeeps.Afteranotherminutethemeterwillemit

onelongbeepbeforefinallyturningoff.Toturnthemeteronagain,simplyrotatethefunction

switchtothedesiredfunction.

TodefeattheAPOfeature,pressandholdtheHbuttonwhileturningthemeteron.TheAPO

featurewillre‐enableafterthemeteristurnedoffagain.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

OperatingInstructions

WARNING:Riskofelectrocution.High‐voltagecircuits,bothACandDC,areverydangerousand

shouldbemeasuredwithgreatcare.

NOTE:OnsomelowACandDCvoltageranges,withthetestleadsnotconnectedtoadevice,

thedisplaymayshowarandom,changingreading.Thisisnormalandiscausedbythehigh‐

inputsensitivity.Readingswillstabilizeandgivepropermeasurementwhentestleadsare

connectedtoacircuit.



NON‐CONTACTACVOLTAGEDETECTOR(NCV)

WARNING:TesttheACvoltagedetectoronaknownlivecircuitbeforeeachuse.



WARNING:BeforeusingthemeterintheACVoltageDetectormode,verifythatthebatteries

arefreshbyconfirmingcharactersappearontheLCDwhenthefunctiondialisturnedtothe

voltage(V)position.DonotattempttousethemeterasanACVoltageDetectorifthebatteries

areweakorbad.

Notes:

Voltagemaystillexistevenwithnoindicationgivenbythemeter.DonotsolelyrelyonNCV

detectiontodeterminethepresenceofvoltage.Socketdesign,insulationthicknessandother

factorsmayaffectreadings.

TheNCVindicatorLEDmayflashwhilemeasuringAC/DCvoltageduetothepresenceofinduced

voltage.

ExternalenvironmentalinterferencefromadditionalsourcescanfalselytriggerNCVdetection.



1. Disconnectthecommon(negative)testleadfromthebottomofthemeter.

2. WiththefunctionswitchsettoanypositionexceptOFF,pressandholdtheNCVbutton.

3. Movethetipofthemeternearthevoltagesourceorconductorasshown.

4. Ifthevoltagedetectedis>110VAC,thebeeperwillsoundandtheNCVindicatornearthe

tipofthemeterwillflash.Alwaystestthedetectoronaknownlivecircuitfirstbefore

attemptingothertests.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

ACandDCVOLTAGEMEASUREMENTS

WARNING:RiskofElectrocutionforACMeasurements.Theprobetipsmaynotbelongenough

tocontactthelivepartsinsidesome240Voutletsforappliancesbecausethecontactsare

recesseddeepintheoutlets.Asaresult,thereadingmayshow0voltswhentheoutletactually

hasvoltagepresent.Makesuretheprobetipsaretouchingthemetalcontactsinsidetheoutlet

beforedeterminingthatnovoltageispresent.



CAUTION:DonotmeasureACorDCvoltageifamotoronthecircuitisbeingswitchedONor

OFF.Largesurgesmayoccurthatcandamagethemeter.



WARNING:Topreventelectricshockanddamagetothemeterorpersonalinjury,donot

measurevoltagesthatmayexceed600VDCorACrms.

NOTES:

Beforeconnectingtheprobeandtestleadatlowervoltageranges,thedisplaymayshowerratic

readings.Thisisnormalbecausethemeterishighlysensitive.Onceaconnectionismade,the

truereadingwillbedisplayed.

‘OL’indicatesanover‐rangeconditioninmanualmode.Ahigherrangeshouldthenbeselected.

Inmanualmode,selectthehighestrangefirstifthevaluetobemeasuredisunknownthenlower

therangeasneeded.

TheACmillivoltrangeisonlyavailableinthemanualrangemode.

1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations.

2. SetthefunctiondialtotheVposition.

3. UsetheMode(M)buttontoselectACorDC.

4. Inserttheblacktestleadbananaplugintothenegativejackatthebottomofthemeter.

5. TouchtheblacktestprobetiptotheneutralsideofthecircuitforACmeasurementsorto

thepositivesideofthecircuitforDCmeasurements.

6. Touchthepositivetestprobetiptothe“hot”sideofcircuitforACmeasurementsortothe

negativesideofthecircuitforDCmeasurements.

7. Readthevoltageonthedisplay.Themeterautomaticallyselectsoptimumrangeortheuser

maymanuallyselectarangebypressingtheRange(R)button.PressandholdtheRange(R)

buttontoreturntotheAUTORangemode.







www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

ACandDCCURRENTMEASUREMENTS

WARNING:Riskofelectricshock.Topreventdamagetothemeterorpersonalinjury,never

measurecurrentwhereopencircuitvoltagesexceed250V.

NOTE:‘OL’indicatesanover‐rangeconditioninmanualmode.Ahigherrangeshouldthenbe

selected.

1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. SetthefunctiondialtothemAposition.

3. UsetheMode(M)buttontoselectACor

DC.

4. Inserttheblacktestleadbananapluginto

thenegativejackatthebottomofthe

meter.

5. Connectthetestleadsinserieswiththe

circuitundertest.

6. Touchtheblacktestprobetiptothenegativesideofthecircuit.

7. Touchthepositivetestprobetiptothepositivesideofthecircuit.

8. Readthecurrentreadingonthedisplay.Themeterautomaticallyselectstheoptimum

rangeortheusermaymanuallyselectarangebypressingtheRange(R)button.Press

andholdtheRange(R)buttontoreturntotheAUTORangemode.



DIODETEST

NOTES:Thedisplayshowstheapproximateforwardvoltagedrop.Iftheconnectionsarereversed

ortheleadsarenotconnected,thedisplaywillshow‘OL’.

1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. Setthefunctionswitchtotheposition.

3. UsetheMode(M)buttontoselectthediode

function 

4. Inserttheblacktestleadbananaplugintothenegative

(common)jackatthebottomofthemeter.

5. Touchthetestprobestothediodeundertest.

6. Agooddiodewillindicateapprox.0.3V(germanium

diodes)to0.7V(silicondiodes)fortheforwardtestand

“OL”forthereversetest.

7. Ashorteddiodewillindicatethesamevalueofvoltageinboththereverseandforward

testdirections.Anopendiodewillindicate“OL”inbothtestdirections.



www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

RESISTANCEMEASUREMENTS

WARNING:Toavoidelectricshock,disconnectpowertotheunitundertestanddischargeall

capacitorsbeforetakinganyresistancemeasurements.

NOTES:

‘OL’indicatesanover‐rangeconditioninmanualmode.Ahigherrangeshouldthenbeselected.

Iftheresistancemeasuredisgreaterthan1M



,themetermaytakeafewsecondstoobtaina

stablereading.Thisisnormalforhighresistancemeasurements.

Whentheleadsarenotconnectedorwhenmeasuringanopencircuit,thedisplaywillread‘OL’.



1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. Setthefunctionswitchtotheposition.

3. UsetheMode(M)buttontoselectthe

resistancemode().

4. Inserttheblacktestleadbananaplugintothe

negativejackatthebottomofthemeter.

5. Touchthetestprobetipsacrossthecircuitor

partundertest.Itisbesttodisconnectoneside

ofthepartundertestfromthecircuitsothe

restofthecircuitwillnotinterferewiththe

resistancereading.

6. Readtheresistanceonthedisplay.Themeter

automaticallyselectstheoptimumrangeortheusermaymanuallyselectarangeby

pressingtheRange(R)button.PressandholdtheRange(R)buttontoreturntotheAUTO

Rangemode.

CONTINUITYCHECK

WARNING:Riskofelectricshock.Ensurethatallpowertothecircuitisoffandcapacitorshave

fullydischargedbeforemeasuringcontinuity.

NOTE:Iftheresistancemeasuredisgreaterthan200,thetestleadsarenotconnected,orwhen

measuringanopencircuit,thedisplaywillread‘OL’.



1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. Setthefunctionswitchtotheposition.

3. UsetheMode(M)buttontoselecttheaudiblecontinuitymode.

4. Inserttheblacktestleadbananaplugintothenegativejackatthebottomofthemeter.

5. Touchthetestprobetipstothecircuitorwireundertest.

6. Iftheresistanceislessthanapproximately50,theaudibletonewillsound.

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

381676A-en-GB_V1.1 08/15

LOGICTEST

WARNING:Topreventelectricshockanddamagetothemeterorpersonalinjury,donot

measurevoltagesthatmayexceed100VACrms.

NOTE:Ifthetestleadsaredisconnectedorifthevoltagemeasuredis<1.5VtheLEDwillbegreen.



1. UsetheprobecoverifmakingmeasurementsoncategoryIIIoraboveinstallations

2. SetthefunctionswitchtotheLOGICposition.

3. Inserttheblacktestleadbananaplugintothenegative(common)jackatthebottomof

themeter.

4. Connecttheblacktestleadtothecircuit’sground(‐)terminal.

5. HolddowntheMode(M)buttonandtouchthetestprobetothecircuitfor

measurement.TheLEDsnearthetipofthemeterwillindicatethecurrentlogiclevel.

6. Ifthemeasurementis0~1.5V,theGreenLEDwilllightandthedisplaywillshowadown

arrow,indicatingthatthelogictestresultisaLOW(‘0’)condition.

7. Ifthemeasurementis1.5~3.5V,theGreenandRedLEDswillbeOFF.

8. Ifthemeasurementis3.5~5V,theRedLEDwilllightandthedisplaywillshowanup

arrow,indicatingthatthelogictestresultisaHIGH(‘1’)condition.Seediagram.



0V 1.5V 3.5V 5V

Green LED ON Green & Red LED OFF Red LED ON

LOW ‘0’ HIGH ‘1’



Maintenance

WARNING:Toavoidelectricalshock,disconnectthetestleadsfromanysourceofvoltage

beforeremovingthebackcoverorthebatterycover.



WARNING:Toavoidelectricalshock,donotoperatethemeteruntilthebatterycoverisinplace

andfastenedsecurely.

Thismeterwasdesignedtoprovideyearsofdependableservice.However,ifthefollowing

guidelinesarenotfollowed,thedependabilityofthemetercanbecompromised:

1. KEEPTHEMETERDRY.Ifitgetswet,wipeitoffandallowittodrybeforeuse.

2. USEANDSTORETHEMETERINNORMALTEMPERATURES.Environmentalextremescan

shortenthelifeoftheelectronicpartsanddistortormeltplasticparts.

3. HANDLETHEMETERGENTLYANDCAREFULLY.

4. KEEPTHEMETERCLEAN.Wipethecaseoccasionallywithadampcloth.Donotuse

chemicals,cleaningsolvents,abrasives,ordetergents.

5. USEONLYFRESHBATTERIESOFTHERECOMMENDEDSIZE/TYPE.

6. IFTHEMETERISTOBESTOREDFORALONGPERIODREMOVETHEBATTERIES

7. Repairsshouldonlybeimplementedbytrainedpersonnel.

www.GlobalTestSupply.com

Find Quality Products Online at: sales@GlobalTestSupply.com

Inhaltsverzeichnis

Andere Extech Instruments Multimeter Handbücher

Extech Instruments

Extech Instruments BT100 Bedienungsanleitung

Extech Instruments

Extech Instruments 381676 Bedienungsanleitung

Extech Instruments

Extech Instruments 380224 Bedienungsanleitung

Extech Instruments

Extech Instruments EX310 Bedienungsanleitung

Extech Instruments

Extech Instruments MultiTec MT310 Bedienungsanleitung

Extech Instruments

Extech Instruments EX230 Bedienungsanleitung

Extech Instruments

Extech Instruments EX505 Bedienungsanleitung

Extech Instruments

Extech Instruments EX411A Bedienungsanleitung

Extech Instruments

Extech Instruments Extech 470 Bedienungsanleitung

Extech Instruments

Extech Instruments MN26-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments 38073A Bedienungsanleitung

Extech Instruments

Extech Instruments EX330 Bedienungsanleitung

Extech Instruments

Extech Instruments MN16A Bedienungsanleitung

Extech Instruments

Extech Instruments MN62 Bedienungsanleitung

Extech Instruments

Extech Instruments EX570 Bedienungsanleitung

Extech Instruments

Extech Instruments 407910 Bedienungsanleitung

Extech Instruments

Extech Instruments EX210 Bedienungsanleitung

Extech Instruments

Extech Instruments Extech 470 Bedienungsanleitung

Extech Instruments

Extech Instruments 38073 Bedienungsanleitung

Extech Instruments

Extech Instruments 380926 Bedienungsanleitung

Extech Instruments

Extech Instruments EX540-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments MN62-K Bedienungsanleitung

Extech Instruments

Extech Instruments RHT50 Bedienungsanleitung

Extech Instruments

Extech Instruments RC200 Bedienungsanleitung

Beliebte Multimeter Handbücher anderer Marken

Agilent Technologies

Agilent Technologies 34420A Bedienungsanleitung

Fluke

Fluke 83 Bedienungsanleitung

Hameg

Hameg HM 8012 Bedienungsanleitung

Mastech

Mastech MY70 Bedienungsanleitung

Steren

Steren MUL-300 Bedienungsanleitung

Somogyi Elektronic

Somogyi Elektronic home SMA 92 Bedienungsanleitung

Gossen MetraWatt

Gossen MetraWatt METRAmax 6 Bedienungsanleitung

PeakTech

PeakTech 4000 Gebrauchs- und Pflegehandbuch

YOKOGAWA

YOKOGAWA 90050B Bedienungsanleitung

Gossen MetraWatt

Gossen MetraWatt METRALINE DMM16 Bedienungsanleitung

Fluke

Fluke 8846A Bedienungs- und Wartungshandbuch

Tempo Communications

Tempo Communications MM200 Bedienungsanleitung

Elenco Electronics

Elenco Electronics CM-1555 Bedienungsanleitung

Mastech

Mastech MS8238C Bedienungsanleitung

SDAR

SDAR 830A, 830B, 830D, 830C Bedienungsanleitung

RS PRO

RS PRO RS-9519BT Bedienungsanleitung

BGS technic

BGS technic 8890 Bedienungsanleitung

Amprobe

Amprobe Hexagon 60 Bedienungsanleitung