TA042 ETC2
Document overview
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Technical content
8u ©uCopyrightuPicouTechnologyu2008u DO137b1u PicouTechnology u JamesuHouseu ColmworthuBusinessuParku St.uNeotsu PE19u8YPu u www.picotech.comu Lemo ®,u Probus ®uan duPicouTechnologyu areuregisteredutrademarks. u Issueuhistory: u 1u 8.8.2008.u ManufactureduinuRepublicuofuChina. u DO137b1u ©uCopyrightuPicouTechnologyu2008u 1u TA042
100 MHz x100/x1000 Differential Probe
User’s Manual ThisuprobeucompliesuwithuIECb1010.1,uIECb1010.2–031uCATuIII,u PollutionuDegreeu2.u u 1. Safety terms and symbols Terms appearing in this manual: u WARNINGu Warningustatementsuidentifyuconditionsuorupracticesu thatucoulduresultuinuinjuryuorudeath.u u u CAUTIONu Cautionustatementsuidentifyuconditions uorupracticesu thatucoulduresultuinudamage utouthisuproductuoruotheru property.u u Symbols appearing on the product: u u u Dangeru HighuVoltageu u u u u Protectiveu (Earth)uTerminalu u u u u Attentionu ReferutouManualu u
2u ©uCopyrightuPicouTechnologyu2008u DO137b1u 2. General safety summary Pleaseureviewutheufollowingusafetyuprecautionsutouavoiduinjuryuandupreventudamageu touthisuprobeuoruanyuproductsuthatuareuconnectedutouit.u Observe maximum working voltage Touavoiduanyuinjury,udounotuuseutheuprobeuaboveu1000uVurmsuCATuIIIubetweenueachu inputuleaduanduearthuorubetweenutheutwouinputuleads.uuThisuvoltageuratinguappliesutou bothutheu1/100uandutheu1/1000usettings.u Must be grounded Thisu probeu isu groundedu withu theu shellu ofu theu BNCu connectoru andu anu auxiliaryu groundinguterminal.u u WARNINGu Beforeumakinguconnectionsutoutheuinputuleadsuofuth isu probe,uensureuthatuitsuoutputuleaduisugrounded.uuYouu mayudouthisueitherubyuconnectingutheuBNCushellutouau groundedu measurementu instrument ,u oru byu connectingu theu auxiliaryu groundingu terminalu tou au reliableugroundupoint.uuReadutheunextuparagraphu foru furtheruadvice.u u Youumustuverifyuthatutheuprobeuisusecurelyugroundedubeforeuconnectingutheuprobeu inputuleads.uuSomeutypesuofumeasuringuinstrument,usuchuasuauUSBuoscilloscopeu connectedutouaulaptop,uareuunlikelyutoubeugroundeduevenuifutheulaptopuisupoweredu fromutheumains.uuBenchbtopuoscilloscopesuareuusuallyugrounded,ubutuinusomeucasesu mayuhaveubeenuisolatedufromuground.uuAuUSBuoscilloscopeuconnectedutouaudesktopu computeruisuusuallyugrounded.uuInuanyucase,udounotuassumeuthatutheumeasurementu instrumentuisugrounded.uu Always verify the ground connection for yourself before connecting the probe input leads.u Use fused test prods if necessary IfuthisuprobeuisuintendedutouuseuforumeasurementsuinucircuitsuofuINSTALLATIONu CATEGORYuIII,uitushoulduincorporateuwithufusedutestuprods.u Do not operate without covers Touavoiduelectricushockuorufireuhazard,udounotuoperateuthisuprobeuwithutheucoversu removed.u Do not operate in wet or damp conditions Touavoiduelectricushock,udounotuoperateuthisuprobeuinuwetuorudampuconditions.u Do not operate in explosive atmosphere Touavoiduinjuryuorufireuhazard,udounotuoperateuthisuprobeuinuanuexplosiveuatmosphere.u Avoid exposed circuitry Touavoiduinjury,uremoveujewelryusuchuasurings,uwatchesuanduotherumetallicuobjects.uu Dounotutouchuexposeduconnectionsuanducomponentsuwhenupoweruisupresent.u DO137b1u ©uCopyrightuPicouTechnologyu2008u 7u 8. Derating curve Theuderatingucurveuforuabsoluteumaximumuinputuvoltageuisuasufollows:u u 9. Overrange indicator Theuoverrangeuindicatorulightsuupureduifutheuvoltageuofutheuinputusignaluexceedsutheu linearuoperatingurangeuofutheuprobe.uuWhenuthisuhappens,utheusignaluonutheuprobeu outputumayunotuaccuratelyurepresentutheusignaluonutheuprobeuinput.u 10. Test procedure a. ConnectutheuBNCuoutputuconnectorutoutheuverticaluinputuofuaugeneralbpurposeu oscilloscope.u b. InstallufouruAAucellsuoruconnectuanuappropriateumainsuadaptorutouthisuprobe.u c. SetutheuoscilloscopeuinputucouplingutouDCuandu1uV/div.uuCenterutheutraceuonutheu display.uu d. Connectutheusprunguhooksuofutheuprobeutoupowerulines.u e. Setutheurangeuofutheuprobeutou1/1000.u f. Au50uHzu/u60uHzusinebwaveuofuproperuamplitudeuwillubeudisplayeduonutheuscreenu ofutheuoscilloscope.uuThisumeansutheuprobeuisuworkinguproperly.u 11. Cleaning Useuausoftuclothutoucleanutheuprobe,utakingucareunotutoucauseudamage.u a. Dounotuimmerseutheuprobe.u b. Dounotuuseuabrasiveucleaners.u c. Dounotuuseuchemicalsucontainsubenzeneuorusimilarusolvents.u 1000 1000 100 1000 10000 Frequencyu(Hz) Voltageu(Vurms)
6u ©uCopyrightuPicouTechnologyu2008u DO137b1u 7. Specifications Bandwidthu DCutou100uMHzu(b3udB)u Attenuationuratiou 1:100/1000u Accuracyu ±2% u RiseuTimeu 3.5unsu InputuImpedanceu 4uM Ω //u7upFueachusideutougroundu InputuVoltageu u Max.uDifferential*u(1/100)u Max.uDifferential*u(1/1000)u ±140uVu(DCu+uPeakuAC)uoru140uVurmsuu ±1400uVu(DCu+uPeakuAC)uoru1000uVurmsu CommonuModeuRange*u ±1400Vu(DCu+uPeakuAC)uoru1000uVurmsu (1/100uandu1/1000)u AbsoluteuMax.uVoltage*u (DifferentialuoruCommonuMode) u ±1400uVu(DCu+uPeakuAC)uoru1000uVurmsuCATuIIIu u (1/100u&u1/1000)u OutputuVoltageu u Swingu(intou50ukΩuload)u ±7Vu Offsetu(typical)u <±5umVu Noiseu(typical)u 0.9umVurmsu SourceuImpedanceu(typical)u 50uΩ u CMRRu(typical)u b80udBu@u60uHz;ub50udBu@u1uMHzu AmbientuOperatinguTemperatureu b10utou40u℃u AmbientuStorageuTemperatureu b30utou70u℃u AmbientuOperatinguHumidityu 25utou85%uRHu AmbientuStorageuHumidityu 25utou85% uRHu PoweruRequirementsu u Standardu 4xAAucellsuoru6uVuDCu/u200umAumainsuadapto ru oruregulatedu9uVuDCu/u120umAumainsuadaptoru Optionu Poweruleadsu LengthuofuInputuLeadsu 30ucmu LengthuofuBNCuLeadu 90ucmu Weightu 500ugu Dimensionu(LxWxH)u 207ummuxu83ummuxu38ummu u *uVoltageulimituisutheulesseruofutheuDC+PeakuACuanduRMSuvalues.u **uu a. Theusupplieduvoltageumustubeulessuthanu12uVuandugreateruthanu4.4uV,uotherwiseu theuprobeucouldubeudamageduorumightunotuoperateuproperly.u b. Polarityuisu“+”uinsideuandu“–”uoutside.uuIfutheupolarityuisuwrong,uaubuiltbinucircuitu protectsutheuprobeusouthatunoudangeruorudamageuwilluoccur.u c. Whenutheuvoltageuofutheucellsubecomesutooulow,utheupoweruindicatoruonutheu paneluwilluflicker.u DO137b1u ©uCopyrightuPicouTechnologyu2008u 3u Use proper power source Touensureuproperufunctioninguofuthisuprobe,uuseufouruAAucellsuoruau6uVDCu/u200umAu mainsuadaptoruoruregulatedu9uVDCu/u120umAumainsuadaptoruorupoweruleads.uu Do not operate the probe if it is damaged Ifuyouususpectuthereuisudamageutouthisuprobe,uhaveuituinspectedubyuqualifieduserviceu personnel.uu 3. Description Byuenablinguconventionaluoscilloscopesutoudisplayuandumeasureuinbcircuituwaveformsu thatuareureferencedutouhighucommonbmodeuvoltages,uthisudifferentialuprobeuextendsu theu measurementu capabilityu ofu oscilloscopesu inu electronicu poweru converters,u inverters,u motoru speedu controls,u switchbmodeu powerusuppliesu andu manyu applications.u 4. Installation a. Simplyu plugu inu theu BNCu outputu connectoru tou theu verticalu inputu ofu au generalbpurposeuoscilloscopeuoruotherumeasurementuinstrument,uanduconnectu theu auxiliaryu groundingu terminalu tou au properu ground.u u Theu measurementu instrumentumustuhaveuaugroundureference.u b. InstallufouruAAucellsuoruconnectuanuappropriateupowerusourceutouthisuprobe.u u c. Selectutheuproperuattenuationuratio.uuWhenumeasuringusignalsubelowu140uV,u switchutheuattenuationuratioutou1/100uinuorderutougetuhigheruresolutionuandulessu noise.uuOtherwise,usetutheuattenuationutou1/1000.u u u WARNINGu Tou protectu againstu electricu shock,uuseu onlyu theu accessoriesudesigneduforuuse uwithuthisudifferentialu probe.u u d. Usingutheuappropriateuprobeuaccessories,uconnectutheuinpututoutheucircuitsuunderu measurement.u u u CAUTIONu Thisuprobeuisudesigneduforucarryinguoutudifferential measurementsu betweenu twou pointsu onu theu circuitu underu test.u u Itu isu notu intendedu foru electricallyu insulatingutheucircuituunderutestuandutheumeasuringu instrument.u u
4u ©uCopyrightuPicouTechnologyu2008u DO137b1u 5. Appearance Theudifferentialuprobeulooksulikeuthis:u A.uOutputuLeadu Theu BNCu outputu connectoru andu anu auxiliaryu groundingu terminaluareuconnectedutoutheuoscilloscope.u B.uInputuLeadsu Theuinputuleadsuofutheudifferentialu probeuconnectutousprungu hooksuthatucomeuwithutheuprobe.u C.uSprunguHooksu Theusprunguhooksuareuconnectedusafelyutoutestupointsuinutheu circuitsuunderutest.u Au Bu Cu DO137b1u ©uCopyrightuPicouTechnologyu2008u 5u 6. Power leads Twoutypesuofupoweruleadsuareuavailableuforuuseuwithuthisuinstrument:u a. Lemo ®uLead:uuForuoscilloscopesuwithuLemo ®upoweruconnectors.u b. Probus ®uLead:uuForuoscilloscopesuwithuProbus ®upoweruconnectors.u u Oscilloscope front panel