Unit UTD2000M User manual
UTD2000CM User Manual
UTD2000MUserManual
Preface
DearUsers,
ThankyouforpurchasingUNI‐Tproduct.Tooperatethisinstrumentcorrectly,pleasereadthisManual,
especiallyits“SafetyInformation”carefullybeforeuse.
Incaseyouhavereadit,itisrecommendedthatyoukeepthismanualproperlyalongwiththeinstrumentor
placeitinanotheraccessiblelocationforpossiblefutureuse.
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UTD2000MUserManual
●CopyrightsreservedbyUni‐TrendTechnology(China)Limited.
●Productsunderthebrandnameof“UNI‐T”aresubjecttothepatentrightsprotectionbyChinaorother
countries,includingthosewhosepatentshaveacquiredorthosepending.
●Thecompanyreservesitsrighttochangeproductspecificationorproductprice.
●AllrightsreservedbyUNI‐T.ThelicensedsoftwareproductsthatareownedbyUNI‐Toritssubsidiary
companiesorspecificprovidersarebeingprotectedbytheStateCopyrightLaworInternationalTreaties.The
informationcontainedinthisManualshallsubstituteallthecorrespondinginformationonmaterialspublished
previously.
UNI‐TisaregisteredtrademarkofUni‐TrendTechnology(China)Limited.
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UTD2000MUserManual
Iftheoriginalpurchaserresellsortransfersthisproducttoanythirdpartywithin3yearssincethedateof
purchase,thenthewarrantyperiodshallbe3yearsstartingfromthedatesuchproductispurchasedfromUNI‐T
oritsauthorizeddistributor.Probe,fuseandotheraccessoriesarenotsubjecttothiswarranty.
Iftheproductisprovedtobedefectiveduringtheapplicablewarrantyperiod,UNI‐Tmay,atitsdiscretion,
determineeithertorepairitwithoutchargingthecostforpartsandlabororreplaceitwithanequivalentproduct
(atourdiscretion).Theparts,modulesorreplacementsthatareusedforwarrantypurposecanbebrandnew
onesorrepairedbutfunctionallyequivalenttonewproducts.Allreplacedparts,modulesorproductsare
propertiesofUNI‐T.
TheusershereinafterreferredtointhisManualareindividualsorentitieshavingrightsexpressively
stipulatedinthiswarranty.Inordertohavethepromisedserviceunderthiswarranty,usersmustreportdefectto
UNI‐Twithintheapplicablewarrantyperiod,includingmakingproperarrangementfortheperformanceofsuch
service.Theusersshallberesponsibleinpackagingthedefectiveproductanddeliversittoamaintenancecenter
assignedbyUNI‐TwithfreightprepaidandprovisionoftheduplicateoftheoriginalCertificateofPurchaseowned
bytheoriginalpurchaser.Iftheproductistobedeliveredtoaplacewithintheboundaryofthecountry,where
ourmaintenancecenterislocated,UNI‐Tshallpaythecostincurredinreturningtheproducttotheusers.
However,ifsuchproducthastobereturnedtoanyotherplace,theusersshallpayallthefreight,tariff,taxorany
otherexpense.
Thiswarrantyisnotapplicabletoanydefect,failureordamagecausedbyaccident,normalwearofparts,
useofproductinsuchapplicationswhicharebeyondthescopeofuseforsuchproduct,improperuseor
improperorinsufficientmaintenanceorservice.Accordingtothiswarranty,UNI‐Tisnotobligedtoprovideanyof
thefollowingservices:
a)Repairanydamagecausedbyinstallation,repairingormaintenanceunlessitisconductedbyan
authorizedservicerepresentative;
b)Repairanydamagecausedbyimproperuseorconnectionwithanyincompatibleequipment;
c)RepairanydamageorfailurecausedbytheuseofapowerwhichisnotprovidedbyUNI‐T.
d)Repairmodifiedorproductthathasbeenintegratedintootherproduct(ifsuchmodificationor
integrationmayincreasethetimespenttorepairormakeitdifficulttorepair).
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UTD2000MUserManual
ThiswarrantyisdraftedbyUNI‐Tfortheuseoftheproductonlyandisbuyer’ssoleandexclusiveremedy
whichisinlieuofallotherwarranties,expressorimplied,includingbutnotlimitedtoanyimpliedwarrantyof
merchantabilityorfitnessforaparticularpurpose.UNI‐Toritsauthorizeddistributorshallnotbeliableforany
special,indirect,incidentalorconsequentialdamagesorlosses,regardlessofwhetherornottheyhavebeen
notifiedofsuchpossibilities.
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UTD2000MUserManual
GeneralSafetyPrecautions
TheGeneratorisstrictlydesignedandmanufacturedasperGB4793SafetyRequirementsforElectronic
MeasuringInstrumentsandSafetyStandardCodedIEC61010‐1.ItisaproductincompliancewithInsulation
Over‐voltageStandardcodedCATI600VandPollutionDegreeII.Toavoidpersonaldamages,thedamageofthis
productoranyotherconnectingproductorpossiblehazard,thefollowingsafetyprecautionsshouldbereadand
understood.
Onlythosewhohavereceivedprofessionaltrainingareallowedtorepairit.
Avoidfirehazardandpersonaldamage:
Usecorrectpowercable:Onlythosespecialpowercablesapprovedbythehomecountryareallowedtousewith
thisproduct.
Correctpulling&plugging:Pleasedonotpullorplugtheplugwhentheprobeortestleadsareconnectedtoa
powersource.
Reliablegrounding:Thisproductconnectstothegroundthroughgroundingwireofthepower.Toavoidelectrical
shock,thegroundingwiremustactuallyconnecttotheground.Ensuretheunitiscorrectlygroundedbefore
connectingtheinputoroutputofthisunit.
Correctconnectionoftheprobesoftheunit:thegroundwireoftheprobehasthesameearthpotentialasthatof
earthwire,sopleasedonotconnectittohighvoltage.
Checktheratingsofallterminals:Toavoidfirehazardortheshockofextremelylargecurrent,beforeconnecting
thisunittopower,pleasecheckallratingsandmarksshownontheunit,andreadthisManualtoknowdetailed
informationabouteveryrating.
Donotoperatewithcoversopen:Thisunitshallnotbeturnedonwhileitscoverorpanelisopen.
UseONLYappropriatefuse:Onlyuseafusewhosemodelandratingsspecifictotheunit.
Avoidexposuretoenergizedparts:Pleasedonotcontactanyexposedconnectorsorcomponentsoncetheunitis
connectedtopower.
Stopoperationincaseofasuspectedfault:Incaseyoususpectthisunitisfaulty,pleasehaveitcheckedby
qualifiedmaintenancepersonnel.
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UTD2000MUserManual
Maintainappropriateventilation
Donotoperateindampenvironment.
Pleasedonotoperateinflammableorexplosiveenvironment.
Keepunitsurfacecleananddry
SafetyTermsandSymbols
Termsinthemanual
FollowingtermsmayappearinthisManual:
Warning:“Warning”specifiesconditionsandactionsthatmayposelife‐threateninghazardstotheuser.
Caution:“Caution”identifiesconditionsandactionsthatmaycausedamagetotheproductorother
properties.
Termsontheproduct:Followingtermsmayshowontheproduct:
DANGERindicatesyouareexposedtoapotentialhazardthatmaybringimmediatedamagetoyouasyou
readthemarking.
WARNINGindicatesyouareexposedtoapotentialhazardthatmaynotbringimmediatedamagetoyouas
youreadthemarking.
CAUTIONindicatesanydamagethatmayhappentotheproductorotherproperties
Symbolsontheproduct:Followingsymbolsmayshowontheproduct:
High voltage
Be sure to refer to the manual
Protective ground terminal
Frame ground terminal
Measuring ground terminal
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UTD2000MUserManual
Foreword
ThisManualhasintroducedinformationrelatingtotheoperationofthisUTD2000CMSeriesDigitalStorage
Oscilloscope.FollowingchaptersareincludedintothisManual:
Chapter1UserGuide:Briefintroductionofitsfunctionsandprovideinstallationguide.
Chapter2Settings:Introducetheoperationofthisunit.
Chapter3Applicationexamples:Provideexamplesonhowtomeetvariousmeasuringneeds.
Chapter4SystemMessageandTroubleshooting
Chapter5Service&Support
Chapter6Appendix
AppendixA:TechnicalIndexes
AppendixB:Accessories
AppendixC:Servicing&Maintenance
AppendixD:WordsonKeypads(ShowninComparisonTable)
AppendixE:FactorySettings
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UTD2000MUserManual
IntroductiontoUTD2000CMSeriesDigitalStorageOscilloscope
UTD2000CMSeriesDigitalStorageOscilloscopeisaperfectcombinationofuser‐friendliness,excellenttechnicalindexesand
multiplefunctionalfeatures.Aunitthatcanhelpuserstocompletetheirmeasurementworkfaster.
ThisManualcontainsinformationforthefollowing8modelsofthisseriesofdigitalstorageoscilloscope
Model BandwidthReal‐time
samplingrate
Maximum
memorydepth
UTD2042HM40MHz1GS/s16Mpts
UTD2042CM40MHz1GS/s32Mpts
UTD2062HM60MHz1GS/s16Mpts
UTD2062CM60MHz1GS/s32Mpts
UTD2102HM100MHz1GS/s16Mpts
UTD2102CM100MHz1GS/s32Mpts
UTD2202HM200MHz1GS/s8Mpts
UTD2202CM200MHz1GS/s16Mpts
UTD2000CMSeriesDigitalStorageOscilloscopesprovideuserswithsimpleandfunctionallyclearfrontpanel
forthemtoperformallbasicoperations.Therearescaleandpositionknobforallchannels,whichprovides
intuitiveoperationthatconformstotheusagehabitsofconventionalinstrumentusers.Userscanoperate
proficientlywithouttheneedtospendmuchtimetolearnandgetfamiliarwithitsoperation.Tospeedupthe
adjustmentfortheeaseofmeasurement,theinstrumentwilldisplaysuitablewaveformandrangeoncetheusers
pressAUTOkeydirectly.
Asidefromeasytouse,UTD2000CMSeriesDigitalStorageOscilloscopeshasthehighperformanceindexes
andstrongfunctionsthatareneededtocompletemeasuringtaskfaster.Byofferingreal‐timesamplingand
equivalentsamplingattherateof1GSa/sand50GSa/srespectively,fastersignalscanbeobservedonthe
instrument.Thestrongtriggeringandanalyticalabilityhasmadeiteasiertocaptureandanalyzewaveform.The
clearLCDandmathematicalfunctionenableuserstoobserveandtoanalyzesignalissuesclearerandfaster.
Followingfeaturesmayhelpyouunderstandhowthisunitcanmeetyourmeasurementdemand.
●Doubleanalogchannel;
●HighdefinitioncolorLCD,Resolution800×480;
●Waveformcapturerateupto150,000wfms/s,whichequalsto75timesofthatofthecompeting
products;
●Memorydepthupto32Mpts,makingitpossiblefortheinstrumenttomaintainthehighestsamplingrate
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UTD2000MUserManual
atawidertimebasescope,whiletakingintoaccounttheintegrityanddetailofawaveform;
●Finewindowexpansionfunctionforpreciseanalysisofthedetailandgenerallookofwaveform;
●Sufficienttriggeringfunction,includingedge,video,pulsewidth,slope,alternativeandLessAmplitude
Pulsetriggering;
●Automeasuring34waveformparametersplus2advanceparameters;
●Uniquewaveformrecordingandplaybackfunction;
●SupportUdiskstorage,softwareupdatingviaUdisk,one‐keyprintscreen,etc.;
●SupportplugandplayUSBdevice,PCcommunicationviaUSB;
●Waveform,settings,bitmapstorageandreproductionofwaveformandsettings;
●Built‐in6‐digithardwarefrequencymeter;
●EmbeddedFFTanddigitalfiltering;
●Mathematicalfunctionformultiplewaveforms(including:plus,minus,timesanddivide);
●UniqueAutosettingswhichcanbeusedinaccordancewithyourneeds;
●Uniquekeypadlockallowsyoutodisablethefunctionofcertainkeysorknobs;
●OSDinmultiplelanguages;
●Independenttimebasefunctionallowssimultaneousandindependenttimebasesetupfordualchannel;
Accessories:
●Two1.2meterslongprobes,1:1/10:1andinconformitytoEN61010‐031:2008.Fordetails,referto
“appendixonaccessories”shownintheManual;
●Apowercablethatconformstothestandardofthehomecountry;
●AUserManual
●AWarrantyCard
●USBCable:UT‐D06
●CommunicationcontrolsoftwareforUTD2000CMseriesoscilloscopes
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UTD2000MUserManual
TableofContents
TableofContents ................................................................................................................................................................11
Chapter1UserGuide ..........................................................................................................................................................13
1.1PreliminaryUnderstandingoftheUnit’sFrontPanel.........................................................................................13
1.2InitialSettings.....................................................................................................................................................15
1.3GeneralCheck ....................................................................................................................................................15
1.4ProbeCompensation..........................................................................................................................................16
1.5RunAutoCalibrationProgram ...........................................................................................................................17
1.6AutoSetupforWaveformDisplay......................................................................................................................17
1.7SetTimeandDate..............................................................................................................................................17
1.8PreliminaryUnderstandingofVerticalSystem ...................................................................................................17
1.9PreliminaryUnderstandingofHorizontalSystem ..............................................................................................18
1.10PreliminaryUnderstandingofTriggerSystem .....................................................................................................19
Chapter2InstrumentSettings ............................................................................................................................................20
2.1WaveformBrightnessSettings ...........................................................................................................................21
2.2VerticalSystemSettings .....................................................................................................................................21
2.2.1ChannelCouplingSettings...................................................................................................................22
2.2.2Channel’sBandwidthLimitSetting......................................................................................................24
2.2.3ProbeAmplificationFactorSetting......................................................................................................24
2.2.4VerticalScaleCoefficient(Volts/Grids)Settings ..................................................................................26
2.2.5PhaseReversedWaveformSetting......................................................................................................26
2.2.6BiasVoltageSetting.............................................................................................................................27
2.2.7RealizationofMathematicalFunction ................................................................................................28
2.2.8ReferenceWaveform...........................................................................................................................32
2.3HorizontalSystemSettings.................................................................................................................................32
2.4TriggerSystemSettings ......................................................................................................................................34
2.4.1EdgeTriggering ......................................................................................................................................35
2.4.2PulseWidthTriggering ..........................................................................................................................36
2.4.3VideoTriggering ....................................................................................................................................37
2.4.4SlopeTriggering .....................................................................................................................................38
2.4.5LessAmplitudePulseTriggering ...........................................................................................................39
2.4.6TriggerHoldOffSettings .......................................................................................................................40
2.5SamplingSystemSettings...................................................................................................................................42
2.5.1AcquiringMode...................................................................................................................................43
2.5.2SamplingMode ...................................................................................................................................45
2.5.3MemoryDepth....................................................................................................................................45
2.5.4FastSampling ......................................................................................................................................46
2.6DisplaySystemSettings......................................................................................................................................48
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UTD2000MUserManual
2.7StorageSystemSettings .....................................................................................................................................49
2.8AutoMeasuring..................................................................................................................................................51
2.9CursorMeasurement .........................................................................................................................................56
2.10AuxiliaryFunctionSettings...............................................................................................................................57
2.10.1Useof“UTILITY”Key .............................................................................................................................57
2.10.2TheUseofkeylock................................................................................................................................60
2.11AutoSettings....................................................................................................................................................60
2.11.1AutoSettings.........................................................................................................................................60
2.11.2Auto(AutoSettings)Strategy................................................................................................................61
2.12TheUseof“RUN/STOP”and“MENUON/OFF”Keys .......................................................................................63
Chapter3ApplicationExamples ......................................................................................................................................64
3.1Measuresimplesignals ......................................................................................................................................64
3.2CaptureaSingleTimeSignal..............................................................................................................................64
3.3ReduceRandomNoiseinaSignal ......................................................................................................................65
3.4TheApplicationofCursorMeasurement ...........................................................................................................68
3.5TheApplicationofX‐YFunction .........................................................................................................................70
3.6ExampleofVideoTriggering ..............................................................................................................................71
3.7ExampleofLessAmplitudePulseTrigger ...........................................................................................................72
3.8UseofStorageFunction .....................................................................................................................................74
3.9Pass/FailDetection.............................................................................................................................................76
3.10UseUpdatingSoftwareContainedInaU‐disk ....................................................................................................78
Chapter4SystemMessage&Troubleshooting...................................................................................................................79
4.1ExplanationonSystemMessages ......................................................................................................................79
4.2Troubleshooting .................................................................................................................................................79
Chapter5Service&Support...............................................................................................................................................81
5.1ProgramUpdating ..............................................................................................................................................81
5.2WarrantySummary ............................................................................................................................................83
5.3HowtoContactUs..............................................................................................................................................83
Chapter6Appendix ............................................................................................................................................................84
AppendixA:TechnicalIndexes ....................................................................................................................................84
AppendixB:Accessories..............................................................................................................................................89
AppendixC:Maintenance&Cleaning.........................................................................................................................90
AppendixD:WordsonKeypads(ShowninComparisonTable) ..................................................................................90
AppendixE:FactorySettings.......................................................................................................................................90
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UTD2000MUserManual
Chapter1UserGuide
UTD2000CMSeriesDigitalStorageOscilloscopesaresmallsizedandportablebenchtopdigitalstorage
oscilloscopesthatoffer convenientanduser‐friendlyfrontpanelforbasicmeasurement.
Thischapterwillillustratehowtoconductthefollowingsoperations:
△Generalcheck
△Functionalcheck
△Probecompensation
△Autosetupforwaveformdisplay
△Preliminaryunderstandingofverticalsystem
△Preliminaryunderstandingofhorizontalsystem
△Preliminaryunderstandingoftriggersystem
1.1PreliminaryUnderstandingoftheUnit’sFrontPanel
OnceyouhavetheUnitinhand,first,youneedtounderstanditsfrontpanel.Thischapterprovidesbrief
descriptionandintroductionoftheoperationandfunctionsofthefrontpanelofUTD2000CMseriesinstruments,
sothatyoumaygetfamiliarwiththeoperationofUTD2000CMSeriesDigitalStorageOscilloscope.
UTD2000CMofferssimpleandfunctionallyclearfrontpaneltousersfortheirbasicoperations.Knobswithsimilar
functionsliketheyhaveonotherdigitalstorageoscilloscope,aswellasfunctionkeysarelocatedonthepanel.
Thefivekeyslocatedattherightsideofthedisplayaremenuoperationkeys(FromtoptobottomareF1toF5.)
Throughthem,youcandomenusetupaccordingly.Otherkeysarefunctionkeys,throughwhichyoucanenter
intodifferentfunctionmenuoraccessaspecificfunctiondirectly.
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UTD2000MUserManual
Fig1‐1FrontPanel‐UTD2000CM
Figure1‐2ScreenDisplay–UTD2000CM
Notes:Real‐timesamplingrateatcurrenttimebasearenotavailableforUTD2202HM&CM.
Tousethemenusystem,pleasefollowthefollowingsteps:
1.Pressamenukeytodisplaythemenutobeused.
2.PressF1toF5locatedtotherightofthescreentoselectamenuitem.Ifthemenuitemcontainsmultiple
submenus,thenagainpressF1toF5tomakeaselection.
3.Somemenuitemsrequirenumericentryormakingmultiplechoicestocompletethesetting,inthiscase,a
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UTD2000MUserManual
multi‐functionalknobmaybeturnedtodosetupandtomakethechoice.
MEASURE:Forautowaveformmeasurement;
ACQUIRE:Setsamplingmode;
STORAGE:SaveawaveformtoorloadawaveformfrommemoryorUDisk;
CURSOR:Activatethecursorformanualcursormeasurement;
DISPLAY:Setwaveformatandtype;
UTILITY:Activatesystemtools,i.e.systemconfiguration;
HORIZONTALMENU:Setwindowexpansionandtriggerholdoff;
TRIGGERMENU:Adjusttheparameterfortriggeringpart;
MULTIPURPOSE:movecursor;setthenumericvaluesforsomemenuitemsormultiplechoicemenus;pressthe
knobforconfirmation;
VERTICALPOSITION:Movetheverticalpositionofawaveformselected.Thedisplayedpositionofthechannel
returnstotheverticalmedianofthescreenoncethisknobispressed;
HORIZONTALPOSITION:Movethehorizontaldisplayedpositionofatriggerpoint.Thepre‐triggerpointreturns
tothehorizontalmedianofthescreenoncethisknobispressed;
TRIGGERLEVEL:Adjustthetriggerpointofawaveform.Pressthisknobtosettriggerlevelas50%orvertical
referencezerolevel;
RUN/STOP:Startorstopdataacquisitionforawaveform;
1.2InitialSettings
Thefollowingproceduresexplainhowtoverifythenormaloperationofthisunitrapidly,howtocompensate
thepassiveprobeusingbuilt‐incompensatingsignal,howtorunthecompensationprogramforsignalpath
(self‐correcting)soastoobtainmaximizedsignalaccuracy,andhowtosettimeanddate.
■Allinitialsetupproceduresshouldbeperformedwhenthisunitisusedforthefirsttime;
■Probecompensatingadjustmentshouldbedonewhentheprobeisconnectedtoanyinputchannelforthe
firsttime;
■Self‐correctingprogramshouldberunwhenthechangeinambienttemperaturereaches5℃ormore.
1.3GeneralCheck
BeforeusinganewUTD2000CMSeriesDigitalStorageOscilloscope,youarerecommendedtocheckit
accordingtothestepslistedbelow.
Checkifthereisanydamagecausedbytransportation:
Incaseyoufindthepackagingcartonorpolyfoamcushionhasanyseriousdamage,pleasecontacttheUNI‐T
distributorwhosellsitimmediately.
Checkaccessories:
Wehavemadedetaileddescriptionoftheaccessoriesthatcomewiththisinstrumentin“Accessoriesof
UTD2000CMDigitalStorageOscilloscope”,asstatedearlierinthisManual.Youcanrefertothistocheckwhether
thereisanymissingaccessory.Incaseyoufindanymissingordamagedaccessory,pleasecontacttheUNI‐T
distributorwhosellsitorlocalrepresentativeofficeofUNI‐T.
Checkthewholeinstrument:
Incasetheinstrumentisfoundhavingdamagedhousing,workingimproperlyortohavefailedthe
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UTD2000MUserManual
performancetest,pleasecontacttheUNI‐TdistributorwhosellsitorlocalrepresentativeofficeofUNI‐T.
Whentheproductisdamagedduetothetransit,keepthepackageandinformtheshippingagencyand
UNI‐TdistributorandtheUNI‐Tdistributorwillarrangethemaintenanceorreplacementforyou.
Functionalcheck
Doafastfunctionalchecktoknowiftheinstrumentcanworkproperly.
Pleasefollowthefollowingsteps:
1.Powersupply:100V~240V,45Hz~440Hz.Turnonthepowerswitchaftertheunitisconnectedtopower.
Pressthesoftstartkeylocatedonthefrontpanelandwaitfortheunittostartnormally.
2.ConnecttheoutputterminaloftheprobestoChannel1,whileconnecttheirinputterminaltosignal
connectpieceforPROBECOMP.
3.PressAUTOkey,thenasquarewaveshouldbeshownonthedisplayer(approximately3Vpp,1KHz)
4.PressCH1keyforoncetoshutchannel1off,andpressCH2foroncetoturnchannel2on.
5.PressUTILITYkeyfirst,thenpressF5andF2oneafteranothertoenterintoAutostrategy.Turnonall
setupsandrepeatstep2and3.
1.4ProbeCompensation
Followingadjustmentmustbeconductedwhentheprobesareconnectedtoanyinputchannelforthefirst
time,sothattheycanbematchedwiththeinputchannel.Probesthathavenotundergonesuchcompensating
correctionmayresultinmeasurementerrororwrongmeasurement.Incaseyouneedtoadjusttheprobe
compensation,pleasefollowthefollowingsteps:
1. Settheattenuationcoefficientinprobemenuto10×andturntheswitchontheprobeto10×,and
thenconnecttheprobestochannel1.Incasehookheadsareusedontheprobes,theyshouldbe
ensuredtohavereliablecontactwiththeprobes.Connectthetipoftheprobetosignaloutput
connectoroftheprobecompensator,theearthclamptogroundwireendoftheprobe
compensationconnectpiece,afterthat,turnonchannel1andthenpressAUTOkey.
2. Observethewaveformbeingdisplayed.
overcompensationcorrectcompensationinsufficientcompensation
Fig.1‐3CompensationforProbeCorrection
3. Ifthewaveformbeingdisplayedistheoneshownaboveindicatingovercompensationorinsufficient
compensation,youcanuseanadjustingpenwithnon‐metalhandletoadjustthevariable
capacitanceinstalledontheprobetillawaveformastheoneindicatingcorrectcompensationis
shownonthedisplayer.
Warning:Toavoidelectricalshockwhenprobesareusedinmeasuringhighvoltage,please
ensurethattheirinsulatedwireisingoodconditionanddonottouchanymetalpartof
themwhentheyareconnectedtohighvoltagesource.
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UTD2000MUserManual
Warning:
Toavoidelectricalshockwhenprobesareusedinmeasuringhighvoltage,pleaseensurethattheir
insulatedwireisingoodconditionanddonottouchanymetalpartofthemwhentheyareconnectedto
highvoltagesource.
Remark:Whenthe“attenuation”switchoftheprobeisturnedto1×,thebandwidthofthisinstrumentwill
belimitedbytheprobeto6MHz.Inordertouseitsfullbandwidth,pleaseensurethattheswitchhas
beenturnedto10×.
1.5RunAutoCalibrationProgram
Runningautocalibrationprogramcanrealizethebestaccuracyofinstrument.Youcanrunthisoperationat
anytime.Butitisamustwheneverthechangesinambienttemperaturereaches5℃ormore.
Torunautocalibrationprogram,pleasefollowthefollowingsteps.
1.Disconnectallprobesorpowercablesfromthechannel’sinputconnector;
2.PressUTILITYkey;
3.PressF1keytoselect“systemconfiguration”displayedattherightofthedisplayer;
4.PressF1keytoselect“autocalibrationprogram”;
5.Pressmulti‐functionknobtoconfirmtheexecutionofautocalibrationprogram,anditmaytakeseveral
minutestocompletethisprocess.
1.6AutoSetupforWaveformDisplay
Thisinstrumenthasautosetupfunctionthatcanautoadjusttheverticalscalecoefficient,timebaseand
triggermodeinaccordancewiththeinputsignaluntilthemostappropriatewaveformhasbeendisplayed.It
requiresthefrequencyofthesignalundertesttobenolessthan40Hzandthedutyratiotobemorethan1%.
Autosetupsteps:
1.Connectthesignalundertesttosignalinputchannel;
2.PressAUTOkeysothatitwillautoadjusttheverticalscalecoefficient,timebaseandtriggermode.Incaseyou
needtohaveclearerobservation,whenautosetupcompletes,pleaseperformmanualadjustmentuntilyouget
thebestwaveformdisplayingeffectthatyouwant.
1.7SetTimeandDate
Tosettimeanddate,pleasefollowthefollowingsteps:
1.PressUTILITYkey;
2.PressF1toenterinto“SystemConfiguration”.
3.Whilein“SystemConfiguration”,pressF4toselect“timesetup”.Thenusemenukeyslocatedtotherightride
ofthedisplayerandmulti‐functionknobtosettimeanddate.
4.Press“Confirmation”tosavethesettimeanddatewhensetupcompletes.
1.8PreliminaryUnderstandingofVerticalSystem
Asshownbelow,thereareanumberofkeysandknobslocatedwithintheverticalcontrolarea.Thefollowing
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UTD2000MUserManual
exercisewillhelpyougetfamiliarwithverticalsetups.
Fig.1‐4VerticalControlAreaShownontheFrontPanel
Turnthe“VERTICALPOSITION”knobtomovewaveforminverticaldirectionandchanneldisplayingposition
returnstomedianoncethisknobispresseddown.
CH1,CH2,REF,MATHkeysareforthedisplayofoperationalmenusforverticalchannel,openingorclosinga
waveformbeingdisplayedthroughthechannel.
“SCALE”isusedtosetverticalscalecoefficient
1.Press“POSITION”knob(forverticalshift)tomakethewaveformdisplaysignalatthecentralpositionofthe
window.Turnthe“POSITION”knob(forverticalshift)tocontroltheverticaldisplayingpositionofthesignal.The
referencemarkerofthegroundlevelofthechannelmovesupanddownwiththewaveform.
2.Changethesetupofverticalsystemandobservethechangeofstatusinformation.Youcanknowthevertical
rangechangefromtheinformationshowninthestatusbarlocatedatthelowerpartofthewaveformwindow.
Turnthevertical“SCALE”knobtochangethecoefficientofverticalscale‐“VOLTS/DIV”andyoumaynoticefrom
thestatusbarthecorrespondingchangeofverticalscalecoefficientshownforeachchannel.IfpressCH1,CH2,
REF,MATHkeyoneafteranother,thescreenwilldisplaytheoperationalmenus,logos,waveformsandrange
statusinformationforthecorrespondingchannel.
MeasurementSkills:
IfchannelcouplingmethodisDC,youcanmeasurethesignal’sDCcomponentswiftlyby
observingthedistancebetweenwaveformandelectricallevelofthesignalearth.
IfthecouplingmethodisAC,DCcomponentcontainedinthesignalwillthenbefiltered,
whichmakeiteasierforyoutodisplaytheACcomponentusinghighersensitivity.
1.9PreliminaryUnderstandingofHorizontalSystem
Asshownbelow,therearetwokeysandtwoknobslocatedwithinthehorizontalcontrolarea.Thefollowing
exercisewillhelpyougetfamiliarwithhorizontaltimebasesetups.
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UTD2000MUserManual
Fig.1‐5HorizontalControlAreaShownontheFrontPanel
Turnthe“POSITION”knob(formovement)tomovethehorizontalpositionforallchannelsandofREFwaveforms,
whichwillreturntomedianswiftlyoncethisknobispresseddown.
MENUforhorizontalmenu,displaywindowandholdoff
“SCALE”isusedtosetthescalecoefficientforhorizontaltimebase‐“SEC/DIV”.Pressthisshortcutforquick
accessintowindowexpansionscreen.When“windowexpansion”isenabled,thiscanalsobeusedtoadjust
windowsscaleandamplificationfactor.
1.Usehorizontal“SCALE”knobtochangethesetupofhorizontaltimebaserangeandobservethechangeof
statusinformation.Turnhorizontal“SCALE”knobtochangetimebaserange–“SEC/DIV”,andyoumaynotice
fromthestatusbarthecorrespondingchangeofthedisplayofcorrespondingtimebaserange,indetail,the
horizontalscanratehasbeenchangedfrom2ns/div～50s/div,steppingintheformof“1‐2‐5”.
2.Usehorizontal“POSITION”knobtoadjusthorizontalpositionofthesignalinwaveformwindow.Whilethe
horizontal“POSITION”knobisbeingturned,waveformcanbeobservedmovinginhorizontaldirection.Press
downthehorizontal“POSITION”knobtoreturnthetriggerpointtohorizontalmedian.
3.PressMENUkeytodisplay“Zoom”menu.Underthismenu,pressF3toopen“expandedwindow”,thenpress
F1toshutoffthe“expandedwindow”andreturntomainwindow.Underthismenu,“MULTIPURPOSE”knobcan
alsobeturnedtoset“triggerholdoff”
Definitions
Triggerpoint:itreferstothepositionofactualtriggerpointrelativetomidpointofthememory.Turnthe
horizontal“POSITION”knobtomovethetriggerpointinhorizontaldirection.
Triggerholdoff:Itreferstotheintervalbetweenthegenerationofatriggerandtherestartoftriggercircuit
nexttime.Triggerholdoffcanbeadjustedbyturning“MULTIPURPOSE”knob,whichisintendedfor
observingcompositeorcomplicatedsignal.
1.10PreliminaryUnderstandingofTriggerSystem
AsshowninFig1‐6,therearethreekeysandoneknoblocatedwithinthetriggermenucontrolarea.The
followingexercisewillhelpyougetfamiliarwithhorizontaltimebasesetups.
Fig.1‐6TriggerSystemShownontheFrontPanel
“LEVEL”knobfortriggeringlevel:whentheedge,pulsewidthorslopetriggeringmodeisused,wecanturn“LEVEL”
18
UTD2000MUserManual
knobtosetthetriggerconditionfortriggersignaltogenerateatrigger.Thetriggerlevelcanbesetasthevertical
median(50%)ofthetriggersignalswiftlybypressingthe“LEVEL”knobdown,andwillbesetas“zero”ifpressedagain.
MENU:Displaythecontentoftriggermenu.
1.Use“LEVEL”knobtochangetriggerlevel.Wecansee“triggerlogo”onthescreenindicatingtriggerlevelline,which
movesupanddownwiththeturningoftheknob.Whilemovingthetriggerlevel,correspondingchangeinthevalueof
triggerlevelcanbeobservedfromthebottomofthescreen.
2.Use“TRIGGERMENU”tochangetriggersettings.
PressF2keytoselect“signalsource”asCH1(selectwiththeuseof“MULTIPURPOSE”knobandpress
“MULTIPURPOSE”knobdowntoconfirmtheselectionorselectdirectlyviatouchcontrol)
PressF3keyandthenpressF1keytoset“triggercoupling”as“DC”.
PressF4keyandthenpressF1keytoset“triggermode”as“AUTO”
PressF5keyandthenpressF2keytoset“slopetype”as“ascend”
3.PressSINGLEtogeneratetriggeronlyforonce.
4.PressFORCEkey:Forcetogenerateatriggersignal,whichismainlyappliedinNormalandSingletriggermodes.
注：Notes:
Marktheauxiliaryfunctionof“shiftknob”,pressdowntoreturntomedianswiftly.
Marktheauxiliaryfunctionof“triggerlevelknob”,pressdowntoreturntoverticalearthlevelswiftly,whichisthezero
triggerlevel.
Marktheauxiliaryfunctionof“MULTIPURPOSEknob”,pressdowntoconfirmtheselection.
Marktheshortcutforaccessing“windowexpansion”,pressdowntoenterintowindowdisplaymode.
Chapter2InstrumentSettings
Sofar,you’vegotpreliminaryunderstandingoftheoperationof“verticalcontrolarea”,“horizontalcontrol
area”and“triggersystemmenu”.Throughtheintroductionwe’vemadeinChapter1,usersshouldbefamiliar
withhowtodosettingsviamenuoperation,ifnot,pleaserereadChapter1.
Thischaptermainlycoversthefollowingtopics:
■WaveformBrightnessSettings
■VerticalSystemSettings(CH1,CH2,MATH,POSITION,VOLTS/DIV)
■HorizontalSystemSettings(HORIMENU,POSITION,SEC/DIV)
■TriggerSystemSettings(TRIGGERMENU,FORCE,SINGLE,LEVEL)
■SamplingModeSettings(ACQUIRE)
19
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