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1、DIGITALMULTIMETEROPERATIONMANUAL1.SUMMARIZEThemeterisastablemultimeterwith321LCDdisplay9Vdrivenbybattery.ItswidelyusedonmeasuringInductanceresistancecapacitancediodetransistrestcontinuitybuzzer.It’sanidealtoolflabfactyfa

2、mily.2.SAFETYNOTEThemetermeetsthestardsofIEC1010.Readtheoperationmanualcarefullybefeoperation.1DonotinputDCVoltageACVoltage.2Thevoltagebelow36Vissafety.Toavoidelectricshockcheckwhetherthetestleadsareconnectedcrectlywheth

3、ertheinsulationisgoodwhenmeasuringover36DCV25ACV.3Removethetestleadswhenchangingfunctionrange.4Tocrectfunctionrangebewareoferroperation.;5SAFETYSYMBOLS“”THEOPERATMUSTREFERTOTHEMANUAL,“”LOWBATTERY3.Technicaldata4.ACTERIST

4、IC1GENERAL11Displaying:LCDdisplaying.12Max.displaying:1999(312digit)autopolarityindication.13Measuringmethod:dualslopeADconversion.14Samplingrate:approx.3timessecond.15Overrangeindication:theMSDdisplays“1”.16Lowbatteryin

5、dication:“”appears.17Operationenvironment:(0~40)℃,R.H.80%.18Power:9V1(NEDA16046F22equivalentmodel).19Size:1899735mm110Weight:approx.380g(includingbattery).111.Accessy:operationmanualgiftboxtestleadsbattery.2TECHNICALACTE

6、RISTICAccuracy:(a%rdg+d)at(235)℃,R.H.75%,oneyearguaranteedfromtheproductiondate.21.Inductance(L)RANGEACCURACYRESOLUTIONMEASUREFREQUENCY2mH1uH20mH10uH200mH(2.0%5d)100uH2H(5.0%5d)1mH20H(5.0%15d)10mHAbout200Hz1H=10mH=106uH2

7、2.CAPACITANCE(C)RANGEACCURACYRESOLUTIONMEASUREFREQUENCY2nF1pF20nF10pF200nF(1.0%5d)100pF2uF1nFAbout200Hz20uF(2.0%5d)10nF200uF(5.0%5d)100nfAbout16Hz1000uF(5.0%25d)1uFAbout8Hz23.RESISTANCE(Ω)RANGEACCURACYRESOLUTION200Ω(0.8%

8、5d)0.1Ω2kΩ1Ω20kΩ10Ω200kΩ100Ω2MΩ(0.8%3d)1kΩ20MΩ(1.0%15d)10kΩ5.OPERATION5.1Frontpaneldeion1.LCDdisplay2.Transisttestjack.3.Holdswitch:useholdthemeasuringdata.4.Rangeknob5.Inputpt:theinputptofresistancediodetest.6.Inputpt:t

9、heinputptofinductancecapacitancemeasuring..7.Powerswitch.8.Lightdiode:usingintheContinuitybuzzer52CONSIDERATIONOFMEASUREMENT(1)ThisLCMETERisintendedfmeasuringthecapacitancevalueofacapacittheinductancevalueofaninduct.Itis

10、notintendedfdeterminingthe“Q”factfabovereactivecomponents.Misleadingreadingsmaybeobtainedifthemeasurementoftheinductancecapacitanceofaresistisattempted.(2)Whenmeasuringcomponentsincircuitthecircuitmustbeswitchedoffdeener

11、gizedbefeconnectingthetestleads.FunctionModelInductance2mH20HCapacitance2nF1000uFResistance200Ω20MΩDiodetest√TransistTest√Continuitybuzzer√DataHold√Alarm√(3)FallmeasurementsshouldconnectBLACKtestleadto“”terminalREDtestle

12、adto“”terminal.53.INDUCTANCE(L)MEASUREMENTPROCEDURE(1)SetPOWERswitchto“ON”position.(2)therangeswitchfthemaximumexpectedinductance.(3)Connectthealligatclipstotheinductleads.(4)Readthedisplay.Thevalueisdirectreadingintheel

13、ectricalunits(uHH)indicatedattheedswitch.IfDISPLAYshow“1”.ItindicatesonOutofRangemeasurement.Ifthedisplayindicatesoneofmereadingzerosshifttothenextlowerrangescaletoimprovetheresolutionofthemeasurement.NOTE:(a)Iftheinduct

14、ancevalueisunmarkedstartfromthe2mHrangekeepincreasinguntiltheoverrangeindicationgoesoffareadingisobtained.(b)Verylowinductancemeasurementshouldbeperfmedbyusingextremelyshtleadsindertoavoidintroducinganystrayinductance.(c

15、)Thisinstrumentisnotintendedfdeterminingthe“Q”factftheinduct.Misleadingreadingsmaybeobtainedifthemeasurementoftheinductanceofaresistisattempted.54.CAPACITANCE(C)MEASURINGPROCEDURE(1)SetPOWERswitchto“ON”position.(2)theran

16、geswitchfthemaximumexpectedcapacitance.(3)Fullydisgeanycapacits.(4)Connectthealligatclipstothecapacitleads.(5)Readthedisplay.Thevalueisdirectreadingintheelectricalunit(nFuF)indicatedattheedrangeswitch.IfDISPLAYshow“1”Iti

17、ndicateonOutofRangemeasurement.Ifthedisplayindicatesonemeleadingzerosshifttothenextlowerrangescaletoimprovetheresolutionofthemeasurement.NOTE:(a)Ifthecapacitancevalueisunmarkedstartfromthe2nFrangekeepincreasinguntiltheov

18、errangeindicationgoesoffareadingisobtained.(b)Ashtedcapacitwillreadoverrangeonallranges.Acapacitancewithlowvoltageleakagewillreadoverrangeamuchhighervaluethannmal.Anopencapacitwillreadzeroonallranges(possibleafewpFon2nFr

19、angeduetostraycapacitanceoftheinstrument).(c)Verylowcapacitancemeasurementshouldbeperfmedbyusingextremelyshtleadsindertoavoidintroducinganystrayinductance.(d)Whenusingtheoptionedtestleadsrememberthattheleadsintroduceamea

20、surablecapacitancetothemeasurement.Asafirstapproximationthetestcapacitancedidmeasuredbyopeningtheleadsatthetripsrecdingtheopencircuitvaluesubtractingthevalue.(e)Capacitsespeciallyelectrolyticoftenhavenotiouslywidetoleran

21、ces.Donotbesurprisedifthemeasuredvalueisgreaterthanthevaluemarkedonthecapacitunlessitisaclosetolerancetype.Howevervalueisseldomdrasticallybelowtheratedvalue.55.RESISTANCE(Ω)MEASURINGPROCEDURE(1)SetPOWERswitchto“ON”positi

22、on.(2)therangeswitchfthemaximumexpectedresisitance.(3)theblacktestleadsintothe“COM”jacktheredoneintothe“VΩHz”jack(4)Turntherangeswitchtoresistancepositionthenconnectthetestleadsatthetwoendsoftheresist.(5)IfDISPLAYshow“1”

23、ItindicateonOutofRangemeasurement.Ifthedisplayindicatesonemeleadingzerosshifttothenextlowerrangescaletoimprovetheresolutionofthemeasurement.Note:1.Wheninputisopencircuititwilldisplaystatus12.Whenmeasuringresistanceonline

24、ensurethatallpowerofcircuittestedareturndownallcapacitaredisgedcompletely3.Neverinputvoltageifinresistancemeasurementmode!4.Itnmalfresistancehigherthan1MΩthatthereadingdataisnotstablefthefirstseveralseconds56.TransisthFE

25、1.SetPOWERswitchto“ON”position2.Turntherangeswitchto“hFE”position3.Todeterminethetransist’stypeNPNPNPtheemittingbasecollectelectrodeintothecrespondingjacksintestingaccessy.57.DIODECONTINUITYTEST1.SetPOWERswitchto“ON”posi

26、tion.2.theblacktestleadsinto“COM“jacktheredoneintothe“Ω”jack3.connecttestleadsinparalleltothediodetestedwiththeredtestleadstotheanodetheblacktocathodethenthereadingvaluewillbeapproximatefwardvoltageofthediode4.Connectpen

27、cilstotwopointsofthecircuittobetestedifbuzzersoundsthentheresistancebetweenthetwopointsislowerthan(6020)Ω.58DATAHOLDPressHOLDthepeakvalueofcurrentdatawillbekeepdisplayingonLCDpressitagaintocancelthisfunction.6.MAINTENANC

28、EDONOTtrytoverifythecircuitfit’saprecisionmeter.1.Bewareofwaterproofdustproofshockproof.2.Donotoperatestethemeterinthecircumstanceofhightemperaturehighhuityflammabilityexplosivestrongmagicfield.3.Usethedampclothsoftsolve

29、nttocleanthemeterdonotuseabrasivealcohol.4.Ifdonotoperateitfalongtimeshouldtakeoutthebattery.5.WhenLCDdisplays“”symbolshouldreplacethebatteryasbelow:●Thespecificationsaresubjecttochangewithoutnotice.●Thecontentofthismanu

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