TA044 ETC2
Document overview
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Technical content
8u ©uCopyrightuPicouTechnologyu2008u DO139d1u PicouTechnology u JamesuHouseu ColmworthuBusinessuParku St.uNeotsu PE19u8YPu u www.picotech.comu Lemo ®,u Probus ®uanduPicouTechnologyu areuregisteredutrademarks. u Issueuhistory: u 1u 8.8.2008.u ManufactureduinuRepublicuofuChina. u DO139d1u ©uCopyrightuPicouTechnologyu2008u 1u TA044
70 MHz High-Voltage Differential Probe
User’s Manual ThisuprobeucompliesuwithuIECd1010.2d031uCATuI,uPollutionuDegreeu2.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 DO139d1u 2. General safety summary Pleaseureviewutheufollowingusafetyuprecautionsutouavoiduinjuryuandupreventudamageu touthisuprobeuoruanyuproductsuthatuareuconnectedutouit.u Observe maximum working voltage Touavoiduanyuinjury,udounotuuseutheuprobeuaboveu2500uVurmsuCATuIubetweenueachu inputuleaduanduearthuoruaboveu5000uVurmsuCATuIubetweenutheutwouinputuleads.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.uuRe adutheunextuparagraphuforu furtheruadvice.u u Youumustuverifyuthatutheuprobeuisusecurelyugroundedubeforeuconnectingutheuprobeu inputuleads.uuSomeutypesuofumeasuringuinstrument,usuchuasuauUSBuoscilloscopeu connectedutouaulaptop,uareuunlikelyutoubeugroundeduevenuifutheulaptopuisupoweredu fromutheumains.uuBenchdtopuoscilloscopesuareuusuallyugrounded,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 DO139d1u ©uCopyrightuPicouTechnologyu2008u 7u 8. Derating curve Theuderatingucurveuforuabsoluteumaximumuinputuvoltageuisuasufollows:u u 9. Overrange indicator Theuoverrangeuindicatorulightsuupureduifutheuvoltageuofutheuinputusignaluexceedsutheu linearuoperatingurangeuofutheuprobe.uuWhenuthisuhappens,utheusignaluonutheuprobeu outputumayunotuaccuratelyurepresentutheusignaluonutheuprobeuinput.u 10. Test procedure a. ConnectutheuBNCuoutputuconnectorutoutheuverticaluinputuofuaugeneraldpurposeu oscilloscope.u b. InstallufouruAAucellsuoruconnectuanuappropriateumainsuadaptorutouthisuprobe.u c. SetutheuoscilloscopeuinputucouplingutouDCuandu1uV/div.uuCenterutheutraceuonutheu display.uu d. Connectutheusprunguhooksuofutheuprobeutoupowerulines.u e. Setutheurangeuofutheuprobeutou1/100.u f. Au50uHzu/u60uHzusinedwaveuofuproperuamplitudeuwillubeudisplayeduonutheuscreenu ofutheuoscilloscope.uuThisumeansutheuprobeuisuworkinguproperly.u 11. Cleaning Useuausoftuclothutoucleanutheuprobe,utakingucareunotutoucauseudamage.u a. Dounotuimmerseutheuprobe.u b. Dounotuuseuabrasiveucleaners.u c. Dounotuuseuchemicalsucontainsubenzeneuorusimilarusolvents.u 200 2500 2500 100 1000 10000 Frequencyu(Hz) Voltageu(Vurms)
6u ©uCopyrightuPicouTechnologyu2008u DO139d1u 7. Specifications Bandwidthu DCutou70uMHzu(d3udB)u Attenuationuratiou 1:100/1000u Accuracyu ±2% u InputuImpedanceu 10uM Ω //u10upFueachusideutougroundu InputuVoltageu u DifferentialuRange*u(1/100)u Max.uDifferential*u(1/1000)u ±700uVu(DCu+uPeakuAC)uoru700uVurmsuu ±7000uVu(DCu+uPeakuAC)uoru5000uVurmsu CommonuModeuRange*u ±7000Vu(DCu+uPeakuAC)uoru2500uVurmsu (1/100uandu1/1000)u AbsoluteuMax.uVoltage*u u Commonumodeu ±7000uVu(DCu+uPeakuAC)uoru2500uVurmsu (1/100u&u1/1000)u Differentialumodeu ±7000uVu(DCu+uPeakuAC)uoru5000uVu rmsu (1/100u&u1/1000)u OutputuVoltageu u Swinguu ±7Vuintou50ukΩuloadu Offsetu(typical)u <±5umVu Noiseu(typical)u 0.9umVurmsu SourceuImpedanceu(typical)u 50uΩ u CMRRu(typical)u d80udBu@u60uHz;ud50udBu@u1uMHzu AmbientuOperatinguTemperatureu d10utou40u℃u AmbientuStorageuTemperatureu d30utou70u℃u AmbientuOperatinguHumidityu 25utou85%uRHu AmbientuStorageuHumidityu 25utou85% uRHu PoweruRequirementsu u Standardu 4xAAucellsuoru6uVuDCu/u200umAumainsuadapto ru oruregulatedu9uVuDCu/u120umAumainsuadaptoru Optionsu Poweruleadsu LengthuofuInputuLeadsu 60ucmu LengthuofuBNCuLeadu 90ucmu Weightu 500ugu Dimensionu(LxWxH)u 202ummuxu83ummuxu38ummu u *uVoltageulimituisutheulesseruofutheuDC+PeakuACuanduRMSuvalues.u **uu a. Theusupplieduvoltageumustubeulessuthanu12uVuandugreateruthanu4.4uV,uotherwiseu theuprobeucouldubeudamageduorumightunotuoperateuproperly.u b. Polarityuisu“+”uinsideuandu“–”uoutside.uuIfutheupolarityuisuwrong,uaubuiltdinucircuitu protectsutheuprobeusouthatunoudangeruorudamageuwilluoccur.u c. Whenutheuvoltageuofutheucellsubecomesutooulow,utheupoweruindicatoruonutheu paneluwilluflicker.u DO139d1u ©uCopyrightuPicouTechnologyu2008u 3u Use proper power source Touensureuproperufunctioninguofuthisuprobe,uuseufouruAAucellsuoruau6uVDCu/u200umAu mainsuadaptoruoru9uVDCu/u120umAumainsuadaptoruorupoweruleads.uu Do not operate the probe if it is damaged Ifuyouususpectuthereuisudamageutouthisuprobe,uhaveuituinspectedubyuqualifieduserviceu personnel.uu 3. Description Byuenablinguconventionaluoscilloscopesutoudisplayuandumeasureuindcircuituwaveformsu thatuareureferencedutouhighucommondmodeuvoltages,uthisudifferentialuprobeuextendsu theu measurementu capabilityu ofu oscilloscopesu tou electronicu poweru converters,u inverters,u motoru speedu controls,u switchdmodeu powerusuppliesu andu manyu otheru applications.u 4. Installation a. Simplyu plugu inu theu BNCu outputu connectoru tou theu verticalu inputu ofu au generaldpurposeuoscilloscopeuoruotherumeasurementuinstrument,uanduconnectu theu auxiliaryu groundingu terminalu tou au properu ground.u u Theu measurementu instrumentumustuhaveuaugroundureference.u b. InstallufouruAAucellsuoruconnectuanuappropriateupowerusourceutouthisuprobe.u u c. Selectutheuproperuattenuationuratio.uuWhenumeasuringusignalsubelowu700uV,u switchutheuattenuationuratioutou1/100uinuorderutougetuhigheruresolutionuandulessu noise.uuOtherwise,usetutheuattenuationutou1/1000.u u u WARNINGu Tou protectu againstu electricu shock,uuseu onlyu theu accessoriesudesigneduforuuseuwithuthisudifferentialu 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
4u ©uCopyrightuPicouTechnologyu2008u DO139d1u 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 DO139d1u ©uCopyrightuPicouTechnologyu2008u 5u 6. Power leads Twoutypesuofupoweruleadsuareuavailableuforuuseuwithuthisuinstrument:u a. Lemo ®uLead:uuForuoscilloscopesuwithuLemo ®upoweruconnectors.u b. Probus ®uLead:uuForuoscilloscopesuwithuProbus ®upoweruconnectors.u u Oscilloscope front panel