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Otheradvantagesincludehigherinputimpedances,whichwillnotloaddownsensitivecircuits,andinputprotectionFigDigitalMultimeterAnanalogmultimeteris ameterthatcanmeasuretwoormoreelectricalpropertiesanddisplaythemeasuredpropertiesalongcalibratedscalesusingapointer.AnalogMultimeterAbasic multimetercanmeasurethethreebasicelectricvalues(ie,voltage,current,andresistance),butmorefunctionscanalsobeincludedinamultimeterAnalog multimeterusesanelectromechanicalcomponentcalledaD’ArsonvalmovementtomovethepointeralongthescalestodisplaymeasuredvaluesAnanalog multimeterisapermanentmagnetmovingcoil(PMMC)metertypemeasuringinstrumentHencethe'multi'-'meter'(multiplemeasurement)nameAmultimeterisa must-havetoolforsomeoneworkingwithelectricityandelectronicsThistutorialwillshowyouhowtouseadigitalmultimeter(DMM),anindispensabletoolthat youcanusetodiagnosecircuits,learnaboutotherpeople'selectronicdesigns,andeventestabatteryInitially,therearetwotypesofmultimeters,analogand digital.Oneofthefirstandoldestmultimetersistheanalogmeter,(Figure2)andtheother,nowmorewidelyusedmeteristhedigitalmultimeter(Figure1).All WorkingPrincipleofDigitalMultimeterAWorkingPrincipleofMultimeterconsistsofanammeter,voltmeterandohmmetercombined,withafunctionswitchto connecttheappropriatecircuittotheD’ArsonvalAnanalogmultimeterSohowdoIuseamultimeter?Thistutorialwillshowyouhowtouseadigitalmultimeter (DMM),anindispensabletoolthatyoucanusetodiagnosecircuits,ThethreemajorclassesofWorkingPrincipleofDigitalMultimeterarepanelmeters,bench typemetersandsystemmetersDigitalMultimeters(DMMs)arethemostcommonFigAnalogMultimeterWhenmeasuringresistance,asmallknowncurrent, usuallyinthemicroampere(µA)range,passesthroughthecomponentundertestAmultimeterorVolt-Ohmmeter,isadeviceusedtomeasurevoltage,current andresistanceWhatisDigitalMultimeter(DMM)andItsFigAnalogMultimeterItworksontheprincipleofd’ArsonvalgalvanometerDigitalMultimeter Multimetermightbeanalogtypemultimetersordigitalmultimeters,dependingonthetypeofcircuitbeingused.AnalogmetersuseaDependingontheirtype (analogordigital)andtheresistancerange,multimetersusevarioustechniquestomeasureresistanceTheyusealiquidcrystaldisplay(LCD)technologytogive moreaccuratereadingsTheanalogmultimeterhasananalogdisplaythatusesthedeflectionofapointeronthescaletoindicatethelevelofmeasurementbeing madeTherearetwomaintypesofmultimetersHowever,thebasicprincipleremainsthesameacrossmostmultimetersAnalogcountersareamultifunctional digitalthatoperatesbasedonelectricalmechanicalmovementIntroductionAmultimeter(alsoknownasavolt-ohm-milliammeter,volt-ohmmeterorVOM)[1]is ameasuringinstrumentthatcanmeasuremultipleelectricalWhatIsDigitalMultimeter(DMM)andItsWorkingPrincipleDetailsPDFAnalogToDigitalConverter ElectricalEngineeringThemostbasicthingswemeasurearevoltageandcurrentAnalogMultimeterWorkingPrincipleNormally,thesehand-helddevicesare veryusefultodetectfaultsorprovidefieldmeasurementsatahighdegreeofaccuracyTypesofMultimetersTherearetwocommontypesofMultimeters,Analog andDigital