漢泰Hantek DSO7004B系列光學顯微鏡手冊 英文

DSO7004BSeriesDigitalStorageOscilloscopeUserManual（Version1.1）ContentsDSO7004BSeriesDigitalStorageOscilloscopeUserManualPAGEii目錄ContentsContents iCopyrightDeclaration iiiChapter1 SafetyTips 11.1 GeneralSafetySummary 11.2 SafetyTermsandSymbols 21.3 TermsonProduct 21.4 SymbolsonProduct 21.5 ProductScrapping 2Chapter2 Overview 32.1 BriefIntroductiontoDSO7004BSeries 3Chapter3 GettingStartedGuide 43.1 Installation 43.1.1 PowerSupply 43.1.2 PowerCord 43.2 FunctionalCheck 43.2.1 Powerontheoscilloscope 43.2.2 Connecttheoscilloscope 43.2.3 Observethewaveform 53.3 ProbeExamination 53.3.1 Safety 53.3.2 UseofProbeCheckWizard 63.4 ManualProbeCompensation 63.5 ProbeAttenuationSetting 73.6 SelfCalibration 7Chapter4 MainFeatureDescription 84.1 OscilloscopeSetup 84.2 Trigger 84.3 DataAcquisition 104.4 WaveformScalingandPositioning 104.5 WaveformMeasurement 11Chapter5 BasicOperation 135.1 DisplayArea 135.1.1 XYFormat 155.2 HorizontalControls 155.2.1 ScanModeDisplay(RollMode) 175.3 VerticalControls 175.3.1 MathFFT 195.4 TriggerControls 255.5 MenuandOptionButtons 315.5.1 MEASURE 315.5.2 ACQUIRE 335.5.3 UTILITY 355.5.4 CURSOR 365.5.5 HELP 365.5.6 SAVE/RECALL 375.5.7 DISPLAY 395.6 FastActionButtons 395.6.1 AUTOSET 405.6.2 Help 415.6.3 DefaultSetup 415.7 Multi-functionalKnobsandButtons 435.8 SignalConnectors 43Chapter6 ApplicationExamples 456.1 Example1:TakingSimpleMeasurements 456.2 Example2:TakingCursorMeasurements 476.3 Example3:AnalyzingInputSignalstoEliminateRandomNoise 506.4 Example4:CapturingSingle-shotSignal 516.5 Example5:UsingX-YMode 526.6 Example6:TriggeringonPulseWidth 536.7 Example7:TriggeringonVideoSignal 546.8 Example8:UsingSlopeTriggertoCaptureParticularSlopeSignal 566.9 Example9:UsingOvertimeTriggertoMeasureLongPulseSignal 576.10 Example10:UsingMathFunctionstoAnalyzeWaveforms 586.11 Example11:MeasuringDataPropagationDelay 59Chapter7 Troubleshooting 617.1 ProblemSettlement 61Chapter8 Specifications 628.1 TechnicalSpecifications 628.2 Accessories 68Chapter9 ServicesandSupport 69Chapter10 GeneralCareandCleaning 7010.1 GeneralCare 7010.2 Cleaning 70AppendixAHarmfulandPoisonousSubstancesorElements 71CopyrightDeclarationCopyrightDeclarationAllrightsreserved;nopartofthisdocumentmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,withoutpriorwrittenpermissionfromHantekTechnologiesCo.,Ltd(hereinafterreferredtoas‘Hantek’).Hantekreservesallrightstomodifythisdocumentwithoutpriornotice.PleasecontactHantekforthelatestversionofthisdocumentbeforeplacinganorder.Hantekhasmadeeveryefforttoensuretheaccuracyofthisdocumentbutdoesnotguaranteetheabsenceoferrors.Moreover,Hantekassumesnoresponsibilityinobtainingpermissionandauthorizationofanythirdpartypatent,copyrightorproductinvolvedinrelationtotheuseofthisdocument.SafetyTipsSafetyTipsGeneralSafetySummaryReadthefollowingsafetyprecautionstoavoidinjuryandpreventdamagetothisproductoranyproductsconnectedtoit.Toevadepotentialhazards,usethisproductonlyasspecified.Onlyqualifiedpersonnelshouldperformmaintenance.Avoidfireorpersonalinjury.Usesuitablepowercord.Useonlythepowercordspecifiedforthisproductandcertifiedforthecountryofuse.Connectanddisconnectproperly.Connectaprobewiththeoscilloscopebeforeitisconnectedtomeasuredcircuits;disconnecttheprobefromtheoscilloscopeafteritisdisconnectedfrommeasuredcircuits.Groundtheproduct.Thisproductisgroundedthroughthegroundingconductorofthepowercord.Toavoidelectricshock,thegroundingconductormustbeconnectedtoearthground.Beforemakingconnectionstotheinputoroutputterminalsoftheproduct,ensurethattheproductisproperlygrounded.Connecttheprobeinarightway.Theprobegroundleadisatgroundpotential.Donotconnectthegroundleadtoanelevatedvoltage.Checkallterminalratings.Toavoidfireorshockhazard,checkallratingsandmarkingsontheproduct.Refertotheproductmanualfordetailedinformationaboutratingsbeforemakingconnectionstotheproduct.Donotoperatewithoutcovers.Donotoperatethisproductwithcoversorpanelsremoved.Avoidexposedcircuitry.Donottouchexposedconnectionsandcomponentswhenpowerispresent.Donotoperatewithsuspectedfailures.Ifyoususpectthereisdamagetothisproduct,haveitinspectedbyqualifiedservicepersonnel.Assuregoodventilation.Donotoperateinwet/dampenvironments.Donotoperateinanexplosiveatmosphere.Keepproductsurfacescleananddry.SafetyTermsandSymbolsThefollowingtermsmayappearinthismanual:WARNING.Warningstatementspointoutconditionsorpracticesthatcouldresultininjuryorlossoflife.CAUTION.Cautionstatementsidentifyconditionsorpracticesthatcouldresultindamagetothisproductorotherproperty.TermsonProductThefollowingtermsmayappearontheproduct:DANGERindicatesaninjuryhazardimmediatelyaccessibleasyoureadthemarking.WARNINGindicatesaninjuryhazardnotimmediatelyaccessibleasyoureadthemarking.CAUTIONindicatesapossiblehazardtothisproductorotherproperty.SymbolsonProductThefollowingsymbolsmayappearontheproduct:ProtecProtectiveGround(Earth)TerminalMeasurementGroundTerminalCAUTIONRefertoManualMeasurementInputTerminalMainsDisconnectedMainsDisconnectedOFF(Power)MainsConnectedON(Power)HighVoltageProductScrappingDeviceRecyclingWeneedextractandutilizenaturalresourcestoproducethisdevice.Ifyoudonotreclaimthedeviceinaproperway,somesubstancesitcontainsmaybecomeharmfulorpoisonoustoenvironmentsorhumanbodies.Toavoidthembeingreleasedoutsideandtominimizethewasteofnaturalresources,wesuggestyoureasonablycallbackthisdevicetoensureproperrecoveryandrecyclingofmostmaterialswithinit.OverviewOverviewBriefIntroductiontoDSO7004BSeriesModelChannelsBandwidthSampleRateLCDDSO7084B480MHz2GS/s7inchcolorDSO7104B4100MHz2GS/s7inchcolorDSO7204B4200MHz2GS/s7inchcolorDSO7304B4300MHz2GS/s7inchcolorTableSTYLEREF1\s2SEQTable\*ARABIC\s11ModelListofDSO7004BSeriesDSO7004BSeriesoscilloscopescoverthebandwidthsfrom80MHzto300MHz,andprovidethereal-timeandequivalentsampleratesrespectivelyupto2GSa/sand25GSa/s.Inaddition,theyhave7inchcolorTFTLCDaswellasWINDOWS-styleinterfacesandmenusforeasyoperation.What’smore,theplentymenuinformationandtheeasy-to-operatebuttonsallowyoutogaininformationasmuchaspossibleinmeasurement;themultifunctionalknobsandthepowerfulshortcutkeyshelpyousavealotoftimeinoperation;theAutosetfunctionletsyoudetectsineandsquarewavesautomatically;theProbeCheckWizardguidesyoutoadjusttheprobecompensationandsettheProbeoptionattenuationfactor.Byusingthethreemethodstheoscilloscopeprovides(context-sensitive,hyperlinks,andanindex),youmaymasteralloperationsonthedeviceinquiteashorttimesoastogreatlyimproveyourefficiencyinproductionanddevelopment.GettingStartedGuideGettingStartedGuideInstallationTokeepproperventilationoftheoscilloscopeinoperation,leaveaspaceofmorethan5cmawayfromthetopandthetwosidesoftheproduct.PowerSupplyUseapowersupplythatdelivers90to240VRMS,45to440Hz.PowerCordUseonlypowercordsdesignedforthisproduct.Referto8.2Accessoriesforspecificstandards.FunctionalCheckFollowthestepsbelowtoperformaquickfunctionalchecktoyouroscilloscope.PowerontheoscilloscopePlugintheoscilloscopeandpresstheON/OFFbutton.Thenpushthe“UTILITY->F6->F6->F6->DEFAULT”button.ThedefaultProbeoptionattenuationsettingis10X.ConnecttheoscilloscopeSettheswitchontheprobeto10XandconnecttheprobetoChannel1ontheoscilloscope.First,aligntheslotintheprobeconnectorwiththeprotuberanceontheCH1BNCandpushtoconnect;then,turntorighttolocktheprobeinplace;afterthat,connecttheprobetipandreferenceleadtothePROBECOMPconnectors.Thereisamarkonthepanel:ProbeCOMP~2V@1KHz.CH1:CH1:toconnectwiththeprobePROBECOMPObservethewaveformPresstheAUTOSETbuttonandyoushouldseewithinafewsecondsasquarewaveofabout2Vpeak-to-peakat1kHzinthedisplay.PresstheCH1MENUbuttontwicetoremoveChannel1.PushtheCH2MENUbuttonandrepeatStep2andStep3toobserveChannel2.ProbeExaminationSafetyWhenusingtheprobe,keepyourfingersbehindtheguardontheprobebodytoavoidelectricshock.Donottouchmetallicportionsoftheprobeheadwhileitisconnectedtoavoltagesource.Connecttheprobetotheoscilloscopeandconnectthegroundterminaltogroundbeforeyoustartanymeasurements.UseofProbeCheckWizardEverytimeyouconnectaprobetoaninputchannel,youshouldusetheprobecheckwizardtoverifythatthisprobeisoperatingcorrectly.Therearetwowaystodothis:Usetheverticalmenu(forexample,pushtheCH1MENUbutton)tosettheProbeoptionattenuationfactor.PresstheUTILITY->F6->F6->F6->PROBECHECKbuttontousetheProbeCheckWizardandconfiguretheprobeoptionattenuationfactorproperlyfollowingmenuprompts.ManualProbeCompensationUponthefirstconnectionofaprobeandaninputchannel,youshouldmanuallyperformthisadjustmenttomatchtheprobetotheinputchannel.Uncompensatedormiscompensatedprobesmayleadtoerrorsorfaultsinmeasurement.Toadjusttheprobecompensation,followthestepsbelow.SettheProbeoptionattenuationinthechannelmenuto10X.Settheswitchontheprobeto10XandconnecttheprobetoChannel1ontheoscilloscope.Ifyouusetheprobehook-tip,ensureitisfirmlyinsertedontotheprobe.AttachtheprobetiptothePROBECOMP~2V@1KHzconnectorandthereferenceleadtothePROBECOMPGroundconnector.DisplaythechannelandthenpresstheAUTOSETbutton.Checktheshapeofthedisplayedwaveform.CompensatedCompensatedcorrectlyOvercompensatedUndercompensatedIfnecessary,useanonmetallicscrewdrivertoadjustthevariablecapacityofyourprobeuntiltheshapeofthewaveformturnstobethesameastheabovefigure.Repeatthisstepasnecessary.Seethefigurebelowforthewayofadjustment.ProbeAttenuationSettingProbesareofvariousattenuationfactorswhichaffecttheverticalscaleofthesignal.TheProbeCheckfunctionisusedtoverifyiftheProbeattenuationoptionmatchestheattenuationoftheprobe.AsanalternativemethodtoProbeCheck,youcanpushaverticalmenubutton(suchastheCH1MENUbutton)andselecttheProbeoptionthatmatchestheattenuationfactorofyourprobe.MakesurethattheAttenuationswitchontheprobematchestheProbeoptionintheoscilloscope.Switchsettingsare1Xand10X.WhentheAttenuationswitchissetto1X,theprobelimitsthebandwidthoftheoscilloscopeto6MHz.Tousethefullbandwidthoftheoscilloscope,besuretosettheswitchto10X.SelfCalibrationTheselfcalibrationroutinehelpsoptimizetheoscilloscopesignalpathformaximummeasurementaccuracy.Youcanruntheroutineatanytimebutshouldalwaysrunitiftheambienttemperaturechangesby5℃ormore.Foramoreaccuratecalibration,pleasepowerontheoscilloscopeandwaitfor20minutesTocompensatethesignalpath,disconnectanyprobesorcablesfromthefront-panelinputconnectors.Then,pushtheUTILITYbutton,selecttheSelfCalibrationoptionandfollowthedirectionsonthescreen..MainFeatureDescriptionMainFeatureDescriptionThischapterprovidessomegeneralinformationthatyouneedtolearnbeforeusinganoscilloscope.Itcontains:1.Oscilloscopesetup2.Trigger3.Dataacquisition4.Waveformscalingandpositioning5.WaveformmeasurementOscilloscopeSetupWhileoperatingtheoscilloscope,youmayoftenusethreefeatures:Autoset,savingasetupandrecallingasetup.Hereinaftertheyareintroducedonebyone.Autoset:Thisfunctioncanbeusedtoadjustthehorizontalandverticalscalesoftheoscilloscopeautomaticallyandsetthetriggercoupling,type,position,slope,levelandmode,etc.,toacquireastablewaveformdisplay.SavingaSetup:Bydefault,theoscilloscopewillsavethesetupeachtimebeforebeingclosed,andautomaticallyrecallthesetuponcebeingturnedon.(Note:Ifyoumodifythesetup,pleasewaitformorethan5secondsbeforeturningofftheoscilloscopetoensuretheproperstorageofnewsettings.)Youcansave10settingspermanentlyintheoscilloscopeandresetthemasnecessary.RecallingaSetup:Theoscilloscopecanrecallanyofyoursavedsetupsorthedefaultfactorysetup.DefaultSetup:Theoscilloscopeispresetfornormaloperationswhenitisshippedfromthefactory.Thisisthedefaultsetup.Youmayrecallthissetupatanytimeforyourrequirements.Toviewthedefaultsettings,refertoSection5.6.3.TriggerThetriggerdetermineswhentheoscilloscopebeginstoacquiredataanddisplayawaveform.Onceatriggerisproperlysetup,theoscilloscopecanconvertunstabledisplaysorblankscreenstomeaningfulwaveforms.Hereintroducesomebasicconceptsabouttrigger.TriggerSource:Thetriggercanbegeneratedwithmultiplesources.Themostcommononeistheinputchannel(alternativebetweenCH1,CH2,CH3andCH2).Whethertheinputsignalisdisplayedornot,itcantriggernormaloperations.AlsothetriggersourcecanbeanysignalconnectedtoanexternaltriggerchannelortheACpowerline(onlyforEdgetriggers).ThesourcewiththeACpowerlineshowsthefrequencyrelationshipbetweenthesignalandtheACcommercialpower.TriggerType:Theoscilloscopehassixtypesoftriggers:Edge,Video,PulseWidth,Slope,OvertimeandAlter.EdgeTriggerusestheanalogordigitaltestcircuitsfortriggering.Ithappenswhentheinputtriggersourcecrossesaspecifiedlevelinaspecifieddirection.VideoTriggerperformsafieldorlinetriggerthroughstandardvideosignals.PulseWidthTriggercantriggernormalorabnormalpulsesthatmeettriggerconditions.SlopeTriggerusestheriseandfalltimesontheedgeofsignalfortriggering.OvertimeTriggerhappensaftertheedgeofsignalreachesthesettime.AlterTrigger,asafeatureofanalogoscilloscopes,givesstabledisplaysofsignalsattwodifferentfrequencies.MainlyitusesaspecificfrequencytoswitchbetweentwoanalogchannelsCH1andCH2sothatthechannelswillgenerateAltertriggersignalsthroughthetriggercircuitry.TriggerMode:YoucanselecttheAutoorNormalmodetodefinehowtheoscilloscopeacquiresdatawhenitdoesnotdetectatriggercondition.AutoModeperformstheacquisitionfreelyinabsenceofvalidtrigger.Itallowsthegenerationofuntriggeredwaveformswiththetimebasesetto80ms/divorslower.NormalModeupdatesthedisplayedwaveformsonlywhentheoscilloscopedetectsavalidtriggercondition.Beforethisupdate,theoscilloscopestilldisplaystheoldwaveforms.Thismodeshallbeusedwhenyouwanttoonlyviewtheeffectivelytriggeredwaveforms.Inthismode,theoscilloscopedisplayswaveformsonlyafterthefirsttrigger.Toperformasinglesequenceacquisition,pushtheSINGLESEQbutton.TriggerCoupling:TriggerCouplingdetermineswhichpartofthesignalwillbedeliveredtothetriggercircuit.Thiscanhelptoobtainastabledisplayofthewaveform.Tousetriggercoupling,pushtheTRIGMENUbutton,selectanEdgeorPulsetrigger,andthenselectaCouplingoption.TriggerPosition:Thehorizontalpositioncontrolestablishesthetimebetweenthetriggerpositionandthescreencenter.SlopeandLevel:TheSlopeandLevelcontrolshelptodefinethetrigger.TheSlopeoptiondetermineswhetherthetriggerpointisontherisingorfallingedgeofasignal.Toperformthetriggerslopecontrol,presstheTRIGMENUbutton,selectanEdgetrigger,andusetheSlopebuttontoselectrisingorfalling.TheTRIGGERLEVELknobcontrolsthetriggerpointisonwhichpositionoftheedge.TriggerslopecanberisingorfallingTriggerslopecanberisingorfallingRisingEdgeFallingEdgeTriggerlevelcanbeadjustedverticallyDataAcquisitionWhenyouacquireananalogsignal,theoscilloscopewillconvertitintoadigitalone.Therearetwokindsofacquisition:Real-timeacquisitionandEquivalentacquisition.Thereal-timeacquisitionhasthreemodes:Normal,PeakDetect,andAverage.Theacquisitionrateisaffectedbythesettingoftimebase.Normal:Inthisacquisitionmode,theoscilloscopesamplesthesignalinevenlyspacedintervalstoestablishthewaveform.Thismodeaccuratelyrepresentssignalsinmosttime.However,itdoesnotacquirerapidvariationsintheanalogsignalthatmayoccurbetweentwosamples,whichcanresultinaliasingandmaycausenarrowpulsestobemissed.Insuchcases,youshouldusethePeakDetectmodetoacquiredata.PeakDetect:Inthisacquisitionmode,theoscilloscopegetsthemaximumandminimumvaluesoftheinputsignalovereachsampleintervalandusesthesevaluestodisplaythewaveform.Inthisway,theoscilloscopecanacquireanddisplaythosenarrowpulsesthatmayhaveotherwisebeenmissedinNormalmode.However,noisewillappeartobehigherinthismode.Average:Inthisacquisitionmode,theoscilloscopeacquiresseveralwaveforms,averagesthem,anddisplaystheresultingwaveform.Youcanusethismodetoreducerandomnoise.EquivalentAcquisition:Thiskindofacquisitioncanbeutilizedforperiodicsignals.Incasetheacquisitionrateistoolowwhenusingthereal-timeacquisition,theoscilloscopewilluseafixedratetoacquiredatawithastationarytinydelayaftereachacquisitionofaframeofdata.AfterrepeatingthisacquisitionforNtimes,theoscilloscopewillarrangetheacquiredNframesofdatabytimetomakeupanewframeofdata.Thenthewaveformcanberecovered.ThenumberoftimesNisrelatedtotheequivalentacquisitionrate.TimeBase:Theoscilloscopedigitizeswaveformsbyacquiringthevalueofaninputsignalatdiscretepoints.Thetimebasehelpstocontrolhowoftenthevaluesaredigitized.UsetheSEC/DIVknobtoadjustthetimebasetoahorizontalscalethatsuitsyourpurpose.WaveformScalingandPositioningThedisplayofwaveformsonthescreencanbechangedbyadjustingtheirscaleandposition.Oncethescalechanges,thewaveformdisplaywillincreaseordecreaseinsize.Oncethepositionchanges,thewaveformwillmoveup,down,right,orleft.Thechannelreferenceindicator(locatedontheleftofthegraticule)identifieseachwaveformonthescreen.Itpointstothegroundlevelofthewaveformrecord.VerticalScaleandPosition:Theverticalpositionofawaveformcanbechangedbymovingitupanddownonthescreen.Tocomparedata,youmayalignawaveformoveranother.WhenyoupushtheVOLTS/DIVbuttontochangetheverticalscaleofawaveform,thewaveformdisplaywillcontractorexpandverticallytothegroundlevel.HorizontalScaleandPosition:PretriggerInformationYoucanadjusttheHORIZONTALPOSITIONcontroltoviewwaveformdatabeforethetrigger,afterthetrigger,orsomeofeach.Whenyouchangethehorizontalpositionofawaveform,youareactuallychangingthetimebetweenthetriggerpositionandthescreencenter.Forexample,ifyouwanttofindoutthecauseofaglitchinyourtestcircuit,youshouldtriggerontheglitchandmakethepretriggerperiodlongenoughtocapturedatabeforetheglitch.Thenyoucananalyzethepretriggerdataandperhapsfindthecause.YouareallowedtochangethehorizontalscaleofallthewaveformsbyturningtheSEC/DIVknob.Forexample,youmaywanttoseejustonecycleofawaveformtomeasuretheovershootonitsrisingedge.Theoscilloscopeshowsthehorizontalscaleastimeperdivisioninthescalereadout.Sinceallactivewaveformsusethesametimebase,theoscilloscopeonlydisplaysonevalueforalltheactivechannels.WaveformMeasurementTheoscilloscopedisplaysgraphsofvoltageversustimeandcanhelptomeasurethedisplayedwaveform.Thereareseveralwaystotakemeasurements,usingthegraticule,thecursorsorperforminganautomaticmeasurement.Graticule:Thismethodallowsyoutomakeaquick,visualestimateandtakeasimplemeasurementthroughthegraticuledivisionsandthescalefactor.Forexample,youcantakesimplemeasurementsbycountingthemajorandminorgraticuledivisionsinvolvedandmultiplyingbythescalefactor.Ifyoucounted6majorverticalgraticuledivisionsbetweentheminimumandmaximumvaluesofawaveformandknewyouhadascalefactorof50mV/division,youcouldeasilycalculateyourpeak-to-peakvoltageasfollows:6divisionsx50mV/division=300mV.Cursor:Thismethodallowsyoutotakemeasurementsbymovingthecursors.Cursorsalwaysappearinpairsandthedisplayedreadoutsarejusttheirmeasuredvalues.Therearetwokindsofcursors:AmplitudeCursorandTimeCursor.Theamplitudecursorappearasahorizontalbrokenline,measuringtheverticalparameters.Thetimecursorappearasaverticalbrokenline,measuringthehorizontalparameters.Whenusingcursors,pleasemakesuretosettheSourcetothewaveformthatyouwanttomeasureonthescreen.Tousecursors,pushtheCURSORbutton.CursorCursorCursorAutomaticMeasurement:Theoscilloscopeperformsallthecalculationsautomaticallyinthismode.Asthismeasurementusesthewaveformrecordpoints,itismoreprecisethanthegraticuleandcursormeasurements.AutomaticmeasurementsshowthemeasurementresultsbyreadoutswhichareperiodicallyupdatedwiththenewdataacquiredbytheoscilloscopeBasicOperationBasicOperationThefrontpaneloftheoscilloscopeisdividedintoseveralfunctionalareas.Inthischapterwewillgiveaquickoverviewofallcontrolbuttonsandknobsonthefrontpanelaswellasthedisplayedinformationonthescreenandrelativetestingoperations.ThefigurebelowillustratesthefrontpaneloftheDSO7004Bseriesdigitaloscilloscope.FrontPanelofDSO7004BSeriesDisplayArea1010131211171615141234567891819DisplayFormat:::YT:Vectors:Grayindicatesautopersistence;Greenmeanspersistencedisplayisenabled.Whentheiconissettogreen,thetimeforpersistencedisplaywillbeshownbehindit.:XY:DotsAcquisitionMode:Normal,PeakDetectorAverageTriggerStatus:Theoscilloscopeisacquiringpretriggereddata.Allpretriggereddatahavebeenacquiredandtheoscilloscopeisreadytoacceptatrigger.TTheoscilloscopehasdetectedatriggerandisacquiringtheposttriggerinformation.Theoscilloscopeworksinautomodeandisacquiringwaveformsintheabsenceoftriggers.Theoscilloscopeisacquiringanddisplayingwaveformdatacontinuouslyinscanmode.●Theoscilloscopehasstoppedacquiringwaveformdata.STheoscilloscopehasfinishedasinglesequenceacquisition.ToolIcon::Ifthisiconlightsup,itmeansthekeyboardoftheoscilloscopeislockedbythehostcomputerviaUSBcontrol.:Ifthisiconlightsup,itmeanstheUSBdiskhasbeenconnected.:ThisiconlightsuponlywhentheUSBslaveinterfaceisconnectedwiththecomputer.Readoutshowsmaintimebasesetting.MainTimeBaseWindowDisplayofwindow’spositionindatamemoryanddatalength.WindowTimeBaseOperatingMenushowsdifferentinformationfordifferentfunctionkeys.Readoutshowsfrequencycount.ReadoutpointsouthorizontalwaveformpositionTriggerType::Edgetriggerontherisingedge.:Edgetriggeronthefallingedge.:Videotriggerwithlinesynchronization.:Videotriggerwithfieldsynchronization.:PulseWidthtrigger,positivepolarity.:PulseWidthtrigger,negativepolarity.Pop-upPromptReadouttellstriggerlevel.Iconindicateswhetherthewaveformisinvertedornot.20MBandwidthLimit.Ifthisiconlightsup,itmeansthebandwidthlimitisenabled,otherwisedisabled.Iconindicateschannelcoupling.ChannelMarkerWindowdisplayswaveform.XYFormatTheXYformatisusedtoanalyzephasedifferences,suchasthoserepresentedbyLissajouspatterns.TheformatplotsthevoltageonCH1againstthevoltageonCH2,whereCH1isthehorizontalaxisandCH2istheverticalaxis.TheoscilloscopeusestheuntriggeredNormalacquisitionmodeanddisplaysdataasdots.Thesamplingrateisfixedat1MS/s.TheoscilloscopecanacquirewaveformsinYTformatatanysamplingrate.YoumayviewthesamewaveforminXYformat.Toperformthisoperation,stoptheacquisitionandchangethedisplayformattoXY.ThetablebelowshowshowtooperatesomecontrolsinXYformat.ControlsUsableornotinXYformatCH1VOLTS/DIVandVERTICALPOSITIONcontrolsSetthehorizontalscaleandpositionCH2VOLTS/DIVandVERTICALPOSITIONcontrolsContinuouslysettheverticalscaleandpositionReferenceorMathUnusableCursorsUnusableAutoset(displayformatresettoYT)UnusableTimebasecontrolsUnusableTriggercontrolsUnusableHorizontalControlsUsethehorizontalcontrolstochangethehorizontalscaleandpositionofwaveforms.Thehorizontalpositionreadoutshowsthetimerepresentedbythecenterofthescreen,usingthetriggertimeaszero.Whenyouchangethehorizontalscale,thewaveformwillexpandorcontracttothescreencenter.Thereadoutneartheupperrightofthescreenshowsthecurrenthorizontalpositioninsecond.Mrepresents‘MainTimeBase’,andWindicates‘WindowTimeBase’.Theoscilloscopealsohasanarrowiconatthetopofthegraticuletoindicatethehorizontalposition.1.HORIZONTALPOSITIONKnob:Usedtocontrolthetriggerpositionagainstthescreencenter.Pushthisbuttontoresetthetriggerpointbacktothescreencenter.AN:Usedtosetthehorizontalpositionaszero.Single-windowModeDual-windowMode(FullScreen)MajorWindowMajorWindowMinorWindow(ExpandedWindow)LocationofexpandedwindowdatainmemoryMulti-functionalMulti-functionalKnob3.SEC/DIVKnob:Usedtochangethehorizontaltimescalesoastomagnifyorcompressthewaveformhorizontally.Ifthewaveformacquisitionisstopped(byusingtheRUN/STOPorSINGLESEQbutton),theSE