HP-410C-Manual-sn-311-328-339-433-532-550-807 电路图.pdf

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1、410C ELECTRONIC VOLTMETER OPERATINGANDSERVICEMANUAL :r HEWLETTPACKARD11 o n RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 01556-5 OPERATINGANDSERVICEMANUAL (HPPARTNO.00410-90005) MODEL410C ELECTRONICVOLTMETER SERIALSPREFIXED:807- AppendixC.ManualBackdating Changesadaptsthismanual10 SerialsPrefixed

2、: 311, 328. 339. 433. 532. and 550 COl)lIghtHewlenPackardCompan) 1963 1.0,Box301, Loveland,Colorado.80537U.S.A. Printed:SEPT1968 RadioFans.CN 收音机爱 好者资料库 Model410C .LI0CONTENTS Jable of Contents ListofTables Section IGENERAL INFORMATION I-I.Description 1-4.InstrumentIdentUication 1-8.AccessoriesAvail

3、able Section olNSTA LLAnON 2-1.Inspection 2-3.Installation 2-5.Rack Mounting 2-9.Three-ConductorPowerCable 2-12.PrImaryPowerRequirements 2-14.RepackagingforS11lpment s.c1on mOPERAnON. 3-1.Introduction. 3-3.AdjustmentofMechanicalZero 3-5.Frontand RearPanelDescription 3-7.OperatincProcedures. 3-9.DCVo

4、ltageMeasurements. 3-11.DCCurrentMeasurements. 3-13.AC VoltageMeasurements. . 3-15.PrecautionswhenMeasuringAC Voltage. NegativePulses. MeasurincResistance. MeasuringDCNano-AmpereCur- rent. Section IVTHEORYOFOPERATION 4-1.OverallDescription 4-4.CircultDescription 4-5.Input Network. 4-16.Modulator-Dem

5、lXluJator 4-23.TheFeedbackNetwork 4-27.PowerSUpply. g- 1-3 1-3 1-3 1-3 g- 2-1 2-1 2-1 2-1 2-1 2-1 2-2 g- 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3- 3- 3- g- -I -1 -1 -1 -1 .-2 -2 Section VMAINTENANCE. 5-1.Introduction. 5-3.TestEquipment ReqUired 5-5.PerformanceChecks 5-7.AlternateCalibrationVoltage Sour

6、ce. 5-9.MechanicalMeterZero 5-10.DCVoltmeterOperation 5-13.DCAmmeterOperation 5-15.OhmmeterOperation. 5-17.AmplUlerOperation 5-24.ACVoltmeterOpe.ntlon 5-28.AdjustmentandCalibrationProce- dure. 5-31.ChopperFrequencyAdjust 5-32.PowerSuppl)Chk 5-33.DCVoltmeterCalibration 5-36.OhmmeterCalibration. 5-37.

7、AmplUlerOutputCalibration 5-38.ACVoltmeterCalibration 5-41.TroubleshootingProcedure. 5-48.ServicingEtchedCircuitBouds Section V1REPLACEABLE PARTS 6-1.Introduction 6-4.OrderingInformation 6-6.Non-ListedParts Appendix ACODE LISTOFMANUFACTURERS Appendix BSALESANDSERVICEOFFICES Appendix CMANUALBACKDATIN

8、G CHANGES g- 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-2 5-2 5-3 5- 5-6 5-6 5-8 5-8 5-8 5-8 5-. 5-. 5- g- 6-1 6-1 6-1 6-1 LIST0,.US Number 1-1.SpecIflcatlons . . . . . . . . . . . . . . 3-1.PoaslbleErrorwhenMeasuringVoltage ofComplexWaveforms. 5-1.RecommendedTestEquipment 5-2.DCVAccuracyTest 5-3.DCVInputResista

9、nceTest 5-4.DCAAccuracyTest 01556-3 g- 1-2 3-3 5-. 5-2 5-2 5-3 Number 5-5.ACAccuracyTest. 5-6.PowerSupplyTest. 5-7.DCVCalibrationProcedure 5-8.ACFullSealeAdjust. 5-9.FrontPanelTroubleshootingProcedure 6-1.ReferenceDesignation Index 6-2.ReplaceableParts 6-3.ReplaceableHardware. Pae 5- 5-8 5-8 5-9 5-1

10、0 6-2 6-7 6-10 III Listollllustrations LISTOFILLUSTRATIONS Model41OC NumberPage 1-1.The10Model410CElectronicVoltmeter.1-1 2-1.The CombiningCase2-0 2-2.StepstoPlaceinstrumentInCombining 6e2-0 2-3.AdaptorFrameInstrumentCombination2-1 2-4.TwoHalfModulesinRack Adaptor2-2 3-1.Front andRearPanelControls3-

11、2 3-2.DCVoltageMeasurements3-5 3-3.DCCurrentMeasurements. .3-6 3-4.ACVoltageMeasurements. .3-7 3-5.MUlmumACVoltageChartfor11036A Probe3-8 3-6.Graph UsedInCalculationofPulseVolt- ageRead1ngs3-9 3-7.ResistanceMeasurements3-10 3-8.DCNano-AmpereCurrentMeasurements3-11 4-1.Block Dlagr:lm. Model410C. . .

12、.4-0 4-2.Modulator-Demodulator Mechanical Analogy4-0 4-3.SlmplUled SChematic.DCCurrent Measurement4-3 NumberPage 4-4.Simplified SChematic,DCVoltage Measurements. . . . . . .4-4 4-5.Simplified SChematic.ResistanceMea- surement4-5 4-6.Simplified SChematic. AC VoltageMea- surement4-6 5-1.AllernateCallb

13、rallonVoltage Source5-1 5-2.DCAmmeterOpen.tlon5-3 5-3.LowFrequencyResponseTest.5-5 5-4.HighFrequencyResponseTest5-6 5-5.Adjustment Location5-7 5-6.ChopperFrequencyAdjust5etup5-7 5-7.TroubleshootingProcedures.5-11/5-12 5-8.Power SupplyMeasurements.5-11/5-12 5-9.PowerSUpplySChematic.5-11/5-12 5-10. Ty

14、picalAmplifierWaveforms.5-13/5-14 5-11.AmplifierSChemalic.5-13/5-14 5-12. Model 11036AACProbe(Exploded View)5-14 5-13. Model 11036AACProbe5chematlc.5-14 5-14. RANGE and FUNCTION Switchlng(Ptc- torial). . . . . . . . . . . . . . . .5-15 5-15. Input RANGE and FUNCTION Switching SChematic. . . . .5-16

15、M-ode1410C 01556-2 Section1 Figure1-1 1-1 Section I TableI-I DCVOLTMETER Table1-1.Specifications AMPLlF1ER(Contd) Model410C Voltage Ranges:15 mv to 1500 v fullscalein 15. 50sequence(11ranges). Accuracy:2%of fullscaleon anyrange. InputResistance:100megohmsl%on500mvrange and above. 10megohms3%on15 my.

16、50mv, and 150 mv ranges. DCAMMETER CurrentRanges:1. 5 Ila to 150 rna fullscalein 1. 5, 5sequence(11ranges). Accuracy:3%offullscaleon anyrange. InputResistance:Decreasingfrom9 Kohms on1.5 Ilascaletoapproximately0.3flon the150rna scale. SpecialCurrentRanges:1. 5. 5, and15nano- ampsmaybemeasuredonthe 1

17、5. 50. and150 mUlivoltrangesusingthevoltmeterprobe.with 5%accuracyand10megohm inputresistance. OHMMETER ResistanceRange:Resistancefrom10ohmsto10 megohmcenterscale(7ranges). Accuracy:Zerotomidscale:5%ofreadingor 2%ofmidscale.whicheverisgreater. 7%frommidscaletoscalevalue of2. 8%fromscalevalue of 2 to

18、3. 9%fromscalevalue of 3 to 5. IO%fromscalevalue of 5 to 10. AMPLlF1ER Voltage Gain:100 maximum. ACRejection:3dbat1/2cps;approximately66db at 50cpsandhigherfrequenciesforsignalsless tlmn 1600 v peakor30timesfullscale.whichever issmaller. Isolation: Impedance between common andchassis is10meg inparal

19、lelwith0.1ilLCommon maybefloated up to 400 v de abovechassisCor de andresistancemeasurements. Output:ProJX)rtional tometerindication;1.5 v de atfullscale.maximumcurrent.1 rna. Output Impedance:Lessthan 3ohmsatdc. Noise:LessthanO.5%of fullscaleon anyrange (p-p). . DCDrift:LessthanO.5%of fullscale/yea

20、ratcon- stanttemperature.Lessthan 0.02% offul1scale 10c. OverloadRecovery:Recoverfrom100:1overload in10megohmsatlowfrequencies.At high frequenciesimpedancedropsof(duetodielectric loss. safety:Theprobebody1sgrounded tochassisatal1 timesforsaIety.Allacmeasurementsareref- erencedtochassisground. Meter:

21、Individuallycalibratedtaut bandmeter.Re- sponds topositivepeak-above-average.Cali- bratedinrmsvoltsforsinewave input. GENERAL Maximum Input:(seeOverloadRecovery) DC:100 v on 15.SO.and150mvranges;500v onO.5 to 15 vranges;1600 vonhigherranges. AC:100timesfullscaleor450 v peak, whichever isless. Power:

22、1150r230v10%.50 to 1000cps,13watts (20wattswith1I036AACProbe). Dimenstons:6-1/2in.high(16.5em);5-1/8in. wide(13.01em);11in.deep(27.9em)behtnd panel.Fits5060-0797RackAdapterand1050 seriescombiningcases. Weight: Nel:8lbs.(4.0kg). Shipping:approximately14lbs.(6.35kg). AccessoriesFurnished:Detachable po

23、wercord. NEMAplug;rftModel 1I036AACProbe. Optton02:Model410ClessACProbe. 01556-3 Model410C SECTIONI GENERALINFORMATION SectionI Paragraphs1-1to1-13 1-1.DESCRIPTION. 1-2.TheHewlettPackardModel 410CElectronic Voltmetercanbeusedtomeasuredevoltage and de currentjacvoltage andresistance.Positiveand negat

24、ive devoltages(rom15millivoltsto 1500volts fullscaleandpositiveandnegativedecurrentsfrom 1.5microamperesto150mllIiamperescanbemro- BuredCullscale.Resistancefrom10ohmsto10meg ohmsmid-scalecanbemeasuredwithanaccuracy of5%;resistancefrom0.2ohmsto500megohms canbemeasuredwithreducedaccuracy.TheModel 410C

25、ElectronicVollmeterisshowninFigure1-1; thespecificationsaregiven inTable1-1. 1-3.WiththeModel1I036AdetachableACProbe. lheVoltmetercanbeusedtomeasureACvoltage from 20cpsto700 Me.From20cpsto 100 Me,ACvoltage from0.5to300voltscanbemeasured;from100Mc to 700 Mc,refertoFigure3-5formaximumACvol- tagethatca

26、nbeappliedto theACProbe.Foradditi- onalinformationontheACProbe,refertoParagraph 1-8. 1-4.INSTRUMENTIDENTIFICATION. 1-5.Hewlett-Packardusesatwosection,eight-digit serialnumber(000-00000).Theserialnumberison aplateattachedtotherearpanelof theinstrument. Ifthefirstthreedigitsoftheserialnumberonyour ins

27、trumentdo notagreewiththoseonthetitlepage ofthismanual, Appendix C, Backdating Changes will definedifferencesbetweenyourinstrumentandthe Model 410Cdescribedinthismanual. 1-6.ACCESSORIESAVAILABLE. 1-7.Accessoriesareavailablethatextendthe AC andDCmeasuringcapabilitiesoftheVoltmeter.A descriptionofthes

28、eaccessoriesandtheirspecifica- tionsisgiven below. 1-8.MODEL 1I036A ACPROBE.Thisaccessory. whenusedwiththeModel 410C, perm1i:sACvoltage measurementsfrom0.5voltsrmsto300voltsrms, fullscaleoverafrequencyrangeof20cpsto700Mc. Referencecalibrationaccuracyat400cps(sinusoidal) is:l:3%offullscale.Frequencyr

29、esponseis:1:10%from 20cpsto700 Mc, withindicationsobtainable to 3000 Mc.Frequencyresponseat100 Mc Is within:t:2%. TheModel 11036Arespondstothepositive-peak- above-averagevalueof thesignalapplied.TheModel 410CiscalibratedtoreadinRMSvolts,forsinewave inputs. 01556-3 1-9.MODEL1I039ACAPACITIVEVOLTAGEDlV

30、l- DER.Thisaccessory(formerlythe Model 452A) extendstheACvoltagerangeof the Model 410C to 25 kv.Thedividerpermitsmeasurementsofextremely highACvoltagesuchasencounteredindielectric heatingequipment,etc.,overafrequencyrangeof 25cpsto20Mc.Afixed gapisprovidedsothatbreak- down willoccuriftheappliedvolta

31、geexceeds28kvat lowfrequencies.Voltage divisionis1000:1,:t:3%,and inputcapacityis15picofarads.A Model110t8A Adapterisalsorequiredto connecttheModelll036A ACProbetotheshieldedbanana plug fitting of the divider. i-IO.MODEL1I040ACAPACITY DIVIDER.This accessory(formerlythe Model 453A)extendstheAC voltag

32、erangeoftheVoltmeterto2000voltsRMS.The dividerisforuseatfrequenciesabove10kc.Voltage divisionis100:1,:t:1%,and inputcapacityisapproxi- mately2picofarads. I-II.MODEL 1I042APROBETCONNECTOR.This accessory(formerlylheModeI455A)isusedforcon- nectingtheModel 1l036AProbeacrossa SO-ohm transmissionline usin

33、g type Nconnectors.TheT- jointissuchthat connection of theprobeinto atrans- missionline will notcauseastandingwavetio greaterthan1.1at500 Me and1.2at1000 Mc.With thisdevice,measurementofpowertravelingthrough atransmissionlinemaybemadewithreasonableac- curacyto1000 Mc.Theusualprecautionsmustbe takent

34、oprovideaccurateimpedancematching andthe eliminationofstandingwaves alongtheline through whichpowerisfloating.Byusinga dummy loadat thereceivingend ofthisT-joint,poweroutputof variousdevicescanbemeasured.In manyapplica- tionspowergoingintoarealload,suchasanantenna, canbeconvenientlymeasuredup to 100

35、0 Mc with good accuracy. 1-12.MODEL 1I043ATYPEN CONNECTOR.This accessory(formerlytheModel 458A)allowstheAC Probetobeconnected to a 50-ohmcoaxialline.The connectorusesamaletype Nconnectorand arecep- tacleforreceivingtheprobe.Terminatingresistor isnot included. 1-13.MODEL1I045A DC DIVIDER.Thisaccessor

36、y extendsthemaximumDCvoltagerangeoftheModel 410Cto30 kv.Voltage divisionis100:1,:t:5%.and inputresistanceis9900megohms.Whenusedwith the Model 410C, inputresistanceIs10,000megohms. Thisprobeoneramaximumsafetyand convenience formeasuringhtghvoltagessuchasintelevision equipment,etc.Themaximumcurrentdra

37、inis2.5 microamperes. 1-3 SecIiOlIn -ll,1:urel2-1and2-2 )ll)del410C DIVIDER ASSEMBLY DIVIDERLATCH SUBMOOULERETAINER Figure2-1.TheCombiningCase STEP(j) SUllfOPRT TOL STU SLIDE IOTTOiIIII.frT TO LIMIT / I- 1/=. ol= STU . TORl.2-17lfItIsnot.UyouhUeany questions, contactyourlocaleSalesandServiceOffice.(

38、See Appendl:J: BforoUlcelocations.) NOTE UtheInstrumentIsto be shipped to Hewlett- Pacb.rdforsen-iceorrepair,attachatag totheInstrumentIdentUying the owner and indicatetheserviceorrepairtobeper- formed; include the modelnumberand full seMalnumberof theInstrument.Inany correspondence,tdentlly thelnat

39、rumentby modelnumber,serialnumberandserial numberprefl:J:. 2-16.UtheoMglnalcontalneristobeused,proeeedaa foUows: a.PlaceInstrumentInoriginalcontainerUaal- lable.U oMgtnalcontainerIsnotavallable,onecan bepurchasedfromyournearest*SalesandService QUlce. b.Ensure1hatcontalneriswellsealedwithstrong tapeo

40、rmetalbands. .- - (i) sPACERCLAMP RETAININGSCREWS CD ADAPTER FRAME ._0- 2-17.UoMgtnalcontalnerlsnotto be used,proceed .follows: a.WrapInstrumentInheavypaperorplastic beforeplacingInanInnercontainer. b.PlacepackingmaterialaroundaUsidesof Instrumentandprotectpanelface withcardboard stMps. 2-2 c.PlaceI

41、nstrumentand Innercontainerinahealy cartonorwoodenbollandsealwithstrongtapeor metalbands. d.Manshippingcontainerwith DELICATE INSTRUMENT,FRAGILE,etc. Model410C 3-1.INTRODUCTION. Seclion m Pllragraphs3-1to3-18 SECTION III OPERATION 3-13.ACVOLTAGEMEASUREMENTS(Figure3-4). 3-2.TheMode1410CIsusedtomeasur

42、eACandOC voltage,DCcurrent,lindresistance.Allmeasure- ment Inputsarelocatedon thefrontpanel;aDCout- putconnectorIslocatedontherearpanel.Front panelllIOntrols andIndicatorsarecolorcoded.OC voltage,DCcurrentandresistanceknobsandIndl- calorsareInblack;ACvoltagecontroLsandIndica- torsareInred. 33.ADJUST

43、MENTOfMECHANICALlno. 34.Theprocedureforadjustmentofmechanical zeroIsgivenInSectionV. 3-.5.fRONTANDlE.PANEL DESCRIPTION. 3-6.Figure3-1describesthefunctionofallfront andrearpanelcontrols,connectorsandIndicators. Thedescriptionofeachcontrol,connectorandIndi- catorIs keyedtoadrawingwhichaccompaniesthe f

44、igure. 3-7.OpnATINGPROCEDURES. 3-8.TbereareftveOI?eralingprocedures:DCVolt- ageMeuurements,Figure3-2;OCCurrentMeasure- menlS,Figure3-3;ACVoltageMeasurements,Fig- ure3-4;ResistanceMeasurements,Figure3-1;and MeaaurlncOCCurrentInNanG-amperes.Figure3-8. N. Ageingoftheneon Lamps Inthechopper assemblycanc

45、auseachangeInchopper frequencywhichproducesasUghtosci- llatorymovementofmeterpointer.If thisoscillatorymovementIsobserved, rotateOscFreqAdl A3RS(seeParagra- graph5-31) In the ccwdirectionuntil oscilialtonofpointerstops. 3-9.DCVOLTAGE MEASUREMENTS(Figure3-2). 3-10.TheModel UOCIsnormallyfloating:howev

46、er ashortlncbarcanbeconnectedattheOCAM.PUnER OUTPUTconnectorontherearpanel.Whentheinstru- mentIsfloating. the COMLeadshouldnotbeconnected tovoltagesgreaterthan400 VDC. 3-11.OCCURRENT MEASUREMENTS(Figure3-3). 3-12.GeneralInstructionsforthemeasurementof DCcurrentarethesameasthosegivenforDC VOlt- ageme

47、asurements,Paragraph3-9. 01556-3 ONE SlOEOFALMOST ALLPOWER D1STRIBUTIONSYSTEMSrs GROUNDED. EXTREME CAUTION MUST BE USEDIF DIRECT MEASUREMENTOFPOWER UNEVOLTAGESISATTEMPTED.IF THEGROUNDCLIPLEADISACCIDEN- TALLYCONNECTEDTOTHEUN- GROUNDEDSIDEOFTHELINESEVERE DAMAGETOTHE410C ISIBLE BECAUSEOFTHESHORTCIRCUIT

48、 CREATED.POWERUNEVOLTAGES CANBESAFELYMEA8UREDBYUSING THEPROBETIPONLY. CONTACTING THEGROUNDEDPOWERCONDUCTOR WILLGIVE A READINGOF0 VOLTS WIIILECONTACTINGTHEUN- GROUNDED LEADWILLGIVEFULL VOLTAGE READING. 3-14.AlthoughtheModel410Cindicatesarullscale ACrangeof 500volts,theoptional Model 1I036A AC Probesh

49、ouldnot beconnectedtoACvoltagesinex- cessof 300voltsRMS.ACvoltagereCerencedtoa DCvoltagemay bemeasured,buttheACProbeclip (aUiptortype)mustbecoanectedtotheground(*) ofthectn:ultundertest. WHEN MEASURINGACREFERENCED TODC,THEPEAK AC VOLTAGE PLUS DCVOLTAGE CONNECTED TOTHE PROBE MUST NOT EXCEED 420 VOLTS. 3-15.PRECAUTIONSWHENMEASURlNGACVOLT- AGE. 3-16.Specialconsiderationsmustbekept In mind whenmaklngACvoltagemeasurements.Thesecon- siderationsarediscussedin the followingparagraphs. 3-17.GENERAL CONSIDERATIONOFCOMPLEX WAV