Tektronix 2445B Manuale utente

Tektronix

'*■*

x^^#^;r^>:^:?r

/v^rT;

2445B/2455B/2465B

OscilloscopeandOptions

OperatorManual

070-6860-00

r«

.-Tpta-S^if *

"i-

j*.'<}<*'

Tektronix

2445B/2455B/2465B

OscilloscopeandOptions

OperatorManual

070-6860-00

Pleasecheckforchangeinformationattherear

this

manual.

FirstPrinting:May1988

RevisedPrinting:October1990

InstrumentSerialNumbers

EachinstrumentmanufacturedbyTektronixhasa serialnumberona panel

insertortag,orstampedonthechassis.Thefirstletterintheserialnumber

designatesthecountryofmanufacture.Thelastfivedigitsoftheserialnumber

areassignedsequentiallyandareuniquetoeachinstrument.Those

manufacturedintheUnitedStateshavesixuniquedigits.Thecountryof

manufactureisidentifiedasfollows:

B010000Tektronix,Inc.,Beaverton,Oregon,USA

E200000TektronixUnitedKingdom,Ltd.,London

J300000Sony/Tektronix,Japan

H700000TektronixHolland,NV,Heerenveen,TheNetherlands

InstrumentsmanufacturedforTektronixbyexternalvendorsoutsidetheUnited

Statesareassigneda twodigitalphacodetoidentifythecountryofmanufacture

(e.g.,

JPforJapan,HKforHongKong,ILforIsrael,etc.).

Tektronix,Inc.,P.O.Box500,Beaverton,OR97077

Printedin

U.S.A.

■!■

Tektronix,Inc.,1988

WARRANTY

Tektronixwarrantsthatthisproductwillbefreefromdefectsinmaterialsand

workmanshipforaperiodof

three

(3)yearsfromthedateofshipment.Ifanysuch

productprovesdefectiveduringthiswarranty

period,

Tektronix,atits

option,

either

willrepairthedefectiveproductwithoutchargeforpartsand

labor,

wiii

providea

replacementinexchangeforthedefectiveproduct.

Inorder

obtainserviceunderthiswarranty,CustomermustnotifyTektronixofthe

defectbeforetheexpirationofthewarrantyperiodandmakesuitable

arrangementsfortheperformanceofservice.Customershallberesponsiblefor

packagingandshippingthedefectiveproducttotheservicecenterdesignatedby

Tektronix,withshippingchargesprepaid.Tektronixshallpayforthereturnofthe

producttoCustomerif

the

shipment

toalocationwithinthecountryinwhichthe

Tektronixservicecenterislocated.Customershallberesponsibleforpayingall

shippingcharges,duties,taxes,andanyotherchargesforproductsreturnedto

anyotherlocations.

Thiswarrantyshallnotapplytoanydefect,failureordamagecausedbyimproper

useorimproperorinadequatemaintenanceandcare.Tektronixshallnotbe

obligatedtofurnishserviceunderthiswarranty

torepairdamageresultingfrom

attemptsbypersonnelotherthanTektronixrepresentativestoinstall,repairor

servicetheproduct;b)torepairdamageresultingfromimproperuseorconnection

toincompatibleequipment;orc)toservicea productthathasbeenmodifiedor

integratedwithotherproductswhentheeffectofsuchmodificationorintegration

increasesthetimeordifficultyofservicingtheproduct.

THISWARRANTYISGIVENBYTEKTRONIXWITHRESPECTTOTHIS

PRODUCTINLIEUOFANYOTHERWARRANTIES,EXPRESSEDOR

IMPLIED.TEKTRONIXANDITSVENDORSDISCLAIMANYIMPLIED

WARRANTIESOFMERCHANTABILITYORFITNESSFORA PARTICULAR

PURPOSE.TEKTRONIX'RESPONSIBILITYTOREPAIRORREPLACE

DEFECTIVEPRODUCTSISTHESOLEANDEXCLUSIVEREMEDYPROVIDED

TOTHECUSTOMERFORBREACHOFTHISWARRANTYTEKTRONIXAND

ITSVENDORSWILLNOTBELIABLEFORANYINDIRECT,SPECIAL,

INCIDENTAL,ORCONSEQUENTIALDAMAGESIRRESPECTIVEOF

WHETHERTEKTRONIXORTHEVENDORHASADVANCENOTICEOFTHE

POSSIBILITY

SUCHDAMAGES.

CertificateoftheManufacturer^lmporter

Weherebycertifythatthe.

2465B/2455B/2445BOSCILLOSCOPEANDALLINSTALLEDOPTIONS

complieswiththeRFInterferenceSuppressionrequirementsof

Amtsbl.-Vfg1046/1984.

TheGermanPostalServicewasnotifiedthattheequipmentisbeing

marketed.

TheGermanPostalServicehastherighttore-testtheseriesandto

verifythatitcomplies.

TEKTRONIX

BescheinigungdesHerstellers/lmporteurs

Hiermitwirdbescheinigt,da#der/die/das

2465B/2455B/2445BOSCILLOSCOPEANDALLINSTALLEDOPTIONS

inUbereinstimmungmitdenBestimmungenderAmtsblatt-Verfugung

1046/1984funkentstoYtist.

DerDeutschenBundespostwurdedasInverkehrbringendiesesGerates

angezeigtunddieBerechtigungzurUberprufungderSerieaufEinhalten

derBestimmungeneingeraumt.

TEKTRONIX

NOTICEtotheuser/operator:

TheGermanPostalServicerequiresthatSystemsassembledbythe

operator/userofthisinstrumentmustalsocomplywithPostal

Regulation,Vfg.1046/1984,Par.2,Sect.1.

HINWEISfurdenBenutzer/Betreiber:

DievomBetreiberzusammengestellteAnlage,innerhalbdererdies

Gerateingesetzt

wird,

mu/3

ebenfallsdenVoraussetzungennachPar.2,

Ziff.

derVfg.1046/1984genugen.

NOTICEtotheuser/operator:

TheGermanPostalServicerequiresthatthisequipment,whenusedina

testsetup,mayonlybeoperatediftherequirementsofPostal

Regulation,Vfg.1046/1984,Par.2,Sect.1.7.1arecomplied

with.

HINWEISfurdenBenutzer/Betreiber:

DiesGeratdarfinMeflaufbautennurbetriebenwerden,wenndie

VoraussetzungendesPar.2,

Ziff.

1.7.1derVfg.1046/1984eingehalten

werden.

The

2465B, 2455B,

and 2445B

TheTEKTRONIX2465B,2455B,and2445Bportableoscilloscopeshavefourvertical

channelswithDCto400MHz,250MHz,and150MHzbandwidths.Deflectionfactors

runfrom2 mVto5 V perdivision,ina 1-2-5sequence,witheither1 MHor50Cl input

resistance,inchannels1 and2.EitherACorDCinputcouplingisavailableat

MfL

Channels3 and4 give0.1V or0.5V perdivision,with1 MHinputresistance,andDC

coupling.

Withthestandard10Xprobes,channels1 and2 display20mVto50

V/divisionandchannels3 and4 display

V or5 V/division.

Thetriggersystemworksautomaticallyformostsignals.Theyoperateinvarious

modes,fromanychannel,withoptimumcouplingsfora widerangeofsignals.The

2445BtriggersfromDCto250MHz.The2455Band2465BtriggerfromDCto

500 MHz.

Sweepspeedsrangefrom1.5s to1 nsperdivisiononthe2445Band2455Bandto

500psperdivisiononthe2465B,includingtheeffectsoftheX10magnifierandthe

calibratedvariablebetween1-2-5steps.HorizontaldisplaysincludeA-Sweep,

B-Sweep(delayed),A alternatedwithB,andCH1 (forX/Ydisplays).

TheSETUPfeatures.AUTO,SAVE,andRECALL,savetimeandpreventerrors.

whetheryouarea noviceoperatorora master.AUTOSetupworkswithalmostany

signal.

Forrepeatingmeasurements,theSaveandRecallfunctionsrecordandrestore

asmanyas30instrumentsetups,includingtheextended-functionoptions.Setupscan

berecalledeitherimmediatelyorsequentially.

Digitalreadoutsoftime,voltage,scalefactors,triggerlevels,andauxiliaryinformation

alsosavetimeandreduceerrors.

WithParametricMeasurements,commonmeasurementssuchasfrequency,period,

amplitude,pulsewidth,dutyfactor,risetime,falltime,andpropagationdelaycanbe

madeautomatically.EachmeasurementactivationdisplaystheresultsintheCRT

readout.Measurementresultsremainon-screenuntilanyotherbuttonispressed.

ForinstrumentswithserialnumbersB049999andbelowwithfirmwareVersion

11andaboveorforinstrumentsserialnumbersB050000andabovewithfirmware

Version2 andabovethefollowingfunctionisavailable.TheRECALLbuttonresets

theinstrumentintothemodeofoperationitwasinpriortoperformingtheparametric

measurementorAUTOSetup.

WiththeavailableCounter/Timer/Trigger(CTT),Option06orOption09,

measurementsrequireevenlesseffortandgivebetteraccuracy.TheCTT increases

triggerselectivity,especiallyindigitalsystems.Option09includestheCTTanda 17-bit

WordRecognizer

{WR).

TheavailableTelevisionA/ideo(TV)enhancement,Option05,can

triggeratanydesiredpointina frameanditcanreducetheeffectsofaccouplingand

humina videosignal.TheavailableDigitalMultimeter(DMM)measuresdcvoltage,dc

current,acrmscurrent,resistance,andtemperaturewithfloatinginputs.

2465B/2455B/2445BOperators

The 2465B, 2455B, and 2445B

The

addsa WordRecognizerProbeconnectorontherearpanel.The

enhancementaddsLINES,FLD1,andFLD2TriggerCoupling.

TheavailableGPIBinterfaceaccessesallcontrolsanddigitalreadings.Theinterface

addsGPIBstatusindicators,justabovetheCRT.Seethe24X5B/2467B GPIB (Option 10)

Instrument Interfacing Guide forinformationonintegratingtheinstrumentinto a GPIB

system.

The2465BCTincludesC7TandWR (Option9)andGPIB(Option10).The

2465BDMaddsDMM (Option01)andalsoincludesCTT andWR(Option9)andGPIB

(Option10).The2465BDVaddsTV(Option05)tothefeaturesofthe2465BDM.

Illustrationsatthebackofthemanualshowtheinstrumentfrontandrearpanels.

2465B/2455B/2445BOperators

Page

Prefacei

Illustrationsvi

Tablesvii

OperatorsSafetySummaryviii

"jGenera! Information

PreparationforUse1-1

Safety1-1

LineVoltageSelection1-1

LineFuse1-1

PowerCord1-3

InstrumentCooling1-4

Start-up1-4

RepackagingForShipment1-5

2Operation

Fundamentals2-1

ParametricMeasurements2-1

Gettinga Display2-2

AssigningParametricMeasurementstoAutoSetup2-3

Vertical2-4

Horizontal2-6

TriggerControls2-6

VideoTriggering2-9

Readout2-10

MeasurementswithCursors2-13

VoltageMeasurements2-15

DisplayOperation2-15

SignalConnections2-16

MagnifyWaveformDetailswithDelayed-Sweep2-17

B-Trigger

Operation2-18

Delta-Delay-Time2-19

Single-Delay-TimeMeasurements2-20

TimeIntervalMeasurement2-21

PrecisionTiming2-22

TriggeredDelta-Delay-TimeMeasurements2-23

TimeIntervalResolution2-25

MeasurementUpdating2-25

Frequency,Period,andTotalizeCounting2-27

FrequencyMeasurementwithExternalReference(Option1E)2-28

DelaySweepsbyEventCounts2-28

LogicTriggering2-32

WordRecognizerOperation2-34

TheWordOutSignal2-35

FrequencyLimitforAutoLevelorParametricMeasurements2-35

DMM\ 2-35

SaveandRecallOperation2-36

2465B/2455B/2445BOperatorsiii

Contents

3Applications

Peak-to-PeakVoltage3-1

AbsoluteVoltagesUsingCursors3-1

NoiseImmunity3-2

DCVoltageMeasurement3-3

AmplitudeModulation3-3

FrequencyModulation3-4

MeasuringVideoSignalsinIREUnits3-5

AvoidingFalseDisplayswithMulti-ModeSignals3-5

AlgebraicAdditiontoDetectCoincidenceorCancelInterference3-5

ObservingCoincidenceofDigitalSignals3-6

MeasuringOff-GroundSignalsAndCancellingInterference3-6

PeriodandFrequency3-8

RiseTimeandFallTime3-9

PropagationDelay3-11

SetupandHoldTimes3-12

SlewRate3-13

TimeRatio(DutyFactor)3-13

PhaseDifferenceBetweenTwoSignals3-15

MeasuringMillivoltSignals3-17

4Checks and Adjustments

Introduction4-1

InitialSetup4-1

TraceRotationandAdjustment4-2

AstigmatismAdjustment4-2

AutoDCBalanceRoutine4-3

ProbeCompensation4-4

MatchingChannel2 Delay4-5

AmplitudeCheck4-6

TimingCheck4-7

QControls, Connectors, and Indicators

Introduction5-1

PowerAndDisplay5-1

SetupandVertical5-4

Horizontal5-12

DelayandDeltaControls5-15

RearPanel5-27

DMM5-29

DMMDisplays5-33

Display-ModeInteractions5-33

iv2465B/2455B/2445BOperators

Altri manuali per 2445B

Questo manuale è adatto per i seguenti modelli

Indice

Altri manuali Tektronix Apparecchiature di prova

Tektronix

Tektronix 3B3 Manuale utente

Tektronix

Tektronix TBS1000 Series Manuale utente

Tektronix

Tektronix P6455 TTL/MOS Manuale utente

Tektronix

Tektronix CTRL7100 Series Manuale utente

Tektronix

Tektronix 314 Manuale utente

Tektronix

Tektronix MDO4104 Manuale per l'uso e la cura

Tektronix

Tektronix 2440 Manuale utente

Tektronix

Tektronix TBS1000B Series Manuale utente

Tektronix

Tektronix MTX100A Manuale utente

Tektronix

Tektronix 321 A Manuale utente

Tektronix

Tektronix WFM6100 Opt. MB Manuale per l'uso e la cura

Tektronix

Tektronix TDS1000B Series Manuale utente

Tektronix

Tektronix TDS7054 Manuale utente

Tektronix

Tektronix MTS400 Series Manuale utente

Tektronix

Tektronix 2245A Manuale utente

Tektronix

Tektronix THS3024 Manuale utente

Tektronix

Tektronix P6458 Manuale utente

Tektronix

Tektronix TPS2000 Series Manuale utente

Tektronix

Tektronix 2205 Manuale utente

Tektronix

Tektronix 2232 Manuale utente

Tektronix

Tektronix 2335 Manuale utente

Tektronix

Tektronix TDS 500D Manuale per l'uso e la cura

Tektronix

Tektronix TDS 820 Manuale utente

Tektronix

Tektronix 533 Manuale utente

Manuali Apparecchiature di prova popolari di altre marche

SMART

SMART KANAAD SBT XTREME 3G Series Manuale utente

Agilent Technologies

Agilent Technologies BERT Serial Manuale utente

Agilent Technologies

Agilent Technologies N3280A Manuale utente

Vernier

Vernier Go Direct Voltage Manuale utente

Lifeloc

Lifeloc R.A.D.A.R. Manuale utente

Fluke

Fluke T5-600 Istruzioni per l'uso e l'installazione

Mercury

Mercury TSL01 Manuale utente

MAHA

MAHA MBT Series Manuale utente

Fuji Electric

Fuji Electric P-61 Manuale utente

ETC

ETC SealerAtor Manuale utente

Skyfine

Skyfine ETHYWAY V2 Manuale utente

Appion

Appion G5 Twin Manuale utente

PCB Piezotronics

PCB Piezotronics 8159-0112A Manuale utente

BW Technologies

BW Technologies MicroDock II Manuale utente

Sun Nuclear

Sun Nuclear 1027 Manuale utente

Biomark

Biomark HPR LITE READER Manuale utente

Hioki

Hioki 3169-20 Manuale utente

Ashcroft

Ashcroft ATE-100 Manuale utente