Tenma 72-7910 User manual

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DigitalStorageOscilloscope

Model:72‐7610/72‐10510

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TableofContents

Ⅰ.SafetyInformation.....................................................................................................1

Ⅱ.Accessories....................................................................................................................2

Ⅲ.ProductOverview......................................................................................................2

Ⅳ.Functions........................................................................................................................3

1. GettoKnowtheUserInterface.........................................................................4

2. GeneralInspections............................................................................................5

3. FunctionInspections..........................................................................................6

4. ProbeCompensation..........................................................................................8

5. AutomaticSettingofWaveformDisplay............................................................9

6. IntroductiontotheVerticalSystem...................................................................9

7. IntroductiontotheHorizontalSystem............................................................10

8. IntroductiontotheTriggerSystem................................................................11

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Ⅴ.Specifications.............................................................................................................12

A. TechnicalSpecifications.....................................................................................12

B. GeneralTechnicalSpecifications........................................................................17

Ⅵ.Operations....................................................................................................................18

1. SettheVerticalSystem......................................................................................19

2. SettheHorizontalSystem..................................................................................28

3. SettheTriggerSystem.......................................................................................30

4. SettheAcquireSystem......................................................................................37

5. SettheDisplaySystem.......................................................................................39

6. SettheStorageandLoadSystem.......................................................................41

7. SettheUtilitySystem.......................................................................................46

8. SettheMeasurementParameters.....................................................................51

9. SettheCursorMeasurement.............................................................................52

10. SystemMessageExamplesandTroubleshooting...............................................53

Ⅶ.Maintenance&Cleaning.....................................................................................55

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Model72‐7610/72‐10510UserManual

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Ⅰ.SafetyInformation

72‐7610/72‐10510oscilloscopesaredesignedandmanufacturedunderthesafety

requirementsofIEC61010‐1safetystandards,andconformstoinsulationand

overvoltagestandards,CATII(150Vor300Vdependingonprobesetting)andpollution

degreeIIsafetystandards.Pleasefollowprecautionsbelowinordertoavoidpersonal

injuries,productdamages,ordamagestoanyproductsconnectedwiththeinstrument.

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Toavoidpossibledanger,pleaseoperateaccordingtodirectionsbelow.

Onlyprofessionalscanexecutethemaintenanceprocedure.

Preventfireandpersonalinjuries.

Usethededicatedpowerlinesrecognizedbyyourcountry.

Donotplugorunplugwhentheprobeortestleadhasbeenconnectedtovoltage

source.

Groundproductreliablytoavoidelectricalshock.Theproductsaregroundedvia

powerearthcord.Priortoconnectingtheinputoroutputterminalsoftheproducts,

makesuretheproductsaregroundedcorrectly.

Correctlyconnecttheoscilloscopeprobes.Theprobeearthcordandthegroundare

ofthesamepotential.Pleasedonotconnectthecordwithhighvoltagesource.

Checktheratedvaluesofallterminals.Toavoidfireandelectricalshock,please

checkallratedvaluesandremarksonproducts;beforeconnectingtheproducts,

checkratedvaluesinthemanual.

Donotopenthefrontpanelorbackcaseduringoperation.

Useproperfuses.Onlyusethespecifiedfusesofthesamespecifications.

Avoidcircuitexposure.Pleasedonotcontactwithexposedplugsorelementsafter

poweringon.

Stopoperatingwhenanyproductissuspectedtobeoutoforderandcanaskthe

qualifiedtechniciantoinspect.

Keepproperventilation.

Pleasedonotoperateinthehumidenvironment.

Pleasedonotoperateininflammableandexplosiveenvironments.

Pleasekeepproductsurfacecleananddry.

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Symbolsonproducts:suchsymbolsmayappearonproducts.

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Highvoltage

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Pleasecheckthemanual

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Protectivegroundterminal

Model72‐7610/72‐10510UserManual

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Casegroundterminal

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Measuringgroundterminal

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Safetytermsandsymbols

Thetermsbelowmaybeinthemanual,

Warning:warningstatementsrefertoconditions

andactionsthatmayendangerlife.

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Thetermsbelowmayappearonproducts,

Danger:indicatingthereisdirectdangerclosetothemarking.

Warning:indicatingthereispotentialdangerclosetothemarking.

Attention:indicatingthereispotentialdamagetotheproductandotherproperties.

Ⅱ.Accessories

Standardaccessories:

Twoprobes(selectablefor1:1and10:1).TheyconformtoEN61010‐031standards.

-Whentheswitchisin1×position,itbelongsto150VCATII.

-Whentheswitchisin10×position,itbelongsto300VCATII.

Onepowercord

Oneusermanual

OneoscilloscopecommunicationcontrolsoftwareCD

OneUSBCable

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Optionalaccessories:

LANportmodule

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Pleaseorderalltheaccessories(standardandoptionalaccessories)fromthelocal

distributors.

Ⅲ.ProductOverview

Thesedigitalstorageoscilloscopeprovidestheuserswithsimplefrontpaneltooperate

variousfunctions.Scaleandpositionknobsofeachchannelprovidevisualoperationsthat

areinlinewithusers’habits.Usersmaybeabletomasteritwithoutspendingplentyoftime

Attention:attentionstatementsreferto

conditionsandactionsthatmaycausedamages

totheproductorotherproperties.

Model72‐7610/72‐10510UserManual

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learningandunderstanding.Inordertoaccelerateadjustmentandfacilitatemeasurement,

userscandirectlypressAUTOkeyandtheoscilloscopewillthendisplayapplicable

waveformandrangesettings.

Apartfromtheeasyoperation,theoscilloscopealsohashighperformanceindexand

powerfulfunctionsrequiredforfastermeasurements.Fastersignalscanbeobservedwith

theoscilloscopevia500MS/s(or1GS/s)real‐timesamplingand25GS/s(or50GS/s)

equivalentsampling.Powerfultriggerandanalysisabilitymakeiteasiertocaptureand

analyzewaveforms.ClearLCDandmathematicaloperatingfunctionsmakeiteasierforusers

toobserveandanalyzesignalproblemsinafasterandclearerway.

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Fromthefollowingparameterfeatures,youcanunderstandhowtheoscilloscopecansatisfy

yourmeasurementrequirements.

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Twoanalogchannels

HighresolutionLCDdisplay,320×240(or400×240)resolution

Supportsplug‐and‐playUSBstorageequipmentforcomputercommunication

Automaticwaveformandstatesettings

Waveformsavingandreplayfeature

Delicatewindowextensionfunctionandpreciseanalysisonwaveformdetailsand

overview

Automaticmeasurementof28waveformparameters

Automaticcursortrackingmeasurementfunction

Uniquefunctionsofwaveformrecordingandplay‐back

Built‐inFFTsoftwarefunction

Multi‐waveformmathematicaloperationfunction(including:addition,subtraction,

multiplicationanddivision)

Edge,video,pulsewidth,alternatingtriggerandotherfunctions

Multi‐languagemenuselection

SimplifiedChineseandEnglishhelpinformationdisplay

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Ⅳ.Functions

Theoscilloscopeisdisktype.Itisdesignedwiththeconventionaluserinterfaceforany

basicdigitalstorageoscilloscopeinthetestandmeasurementindustry.

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Thissectionwillcoverthefollowingasthebeginningguideoftheoscilloscope:

1.GettoKnowtheUserInterface

2.GeneralInspections

3.FunctionalInspections

4.ProbeCompensation

5.AutomaticSettingsofWaveformDisplay

Model72‐7610/72‐10510UserManual

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6.IntroductiontotheVerticalSystem

7.IntroductiontotheHorizontalSystem

8.IntroductiontotheTriggerSystem

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1. GettoKnowtheUserInterface

Gettingtounderstanddifferentpartsoftheuserinterfaceisoneofthemostimportant

taskstoknowtheoperations.Theoscilloscopeuserinterfaceconsistsof:

Verticalcontrol

Horizontalcontrol

Triggercontrol

LCDdisplayarea

Functionbuttons(F1,F2,F3,F4,F5)

Usermenuarea

Inputterminal(CH1,CH2,EXTTRIG)

Multi‐purposeknob

USBinterface

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PleasegetfamiliarwiththeuserinterfacesshowninFigure1‐1andFigure1‐2.

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Figure1‐1:72‐7610PanelDiagram‐5.7‐inchTFTcolorLCDdisplay

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Model72‐7610/72‐10510UserManual

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Figure1‐2:72‐10510PanelDiagram‐7‐inchTFTcolorLCDdisplay

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Figure1‐3:UserInterfaceMenuDisplay(taking72‐10510asanexample)

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2.GeneralInspections

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Itisrecommendedtoinspecttheoscilloscopeaccordingtothefollowingsteps.

1.Inspectwhethertherearedamagescausedbytransportation

Incaseofbadlydamagestopackingboxorfoamedplasticmat,youshouldreplace

immediately.

2.Accessoriesinspection

Model72‐7610/72‐10510UserManual

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Forprovidedaccessoriesdetails,descriptionhasbeenmadein“Accessories”sectionof

thisusermanual.Ifyoufindanyaccessoryismissingordamaged,pleasecontactTenma

distributorsorthelocaloffices.

3.Checkthemaininstrument

Incaseofdamagestotheappearanceofinstrument,abnormaloperationorfailureto

passtheperformancetests,pleasecontactTenmadistributorsorthelocaloffices.

Iftheinstrumentisdamagedduetotransportation,pleasepayattentiontokeepingthe

package,notifythetransportationdepartmentandTenma.Theywillmakearrangement

forrepairorreplacement.

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3.FunctionInspections

Conductafastfunctionalinspectiontoverifywhethertheoscilloscoperunsnormally.

Pleasetakethefollowingsteps:

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Powerontheoscilloscope

UserscanpowerontheoscilloscopewithvoltagesupplyofAC100V–AC240Vand

frequencyof45Hz–440Hz.Afterpoweringon,inordertoactivatethebestworking

status,pressUTILITYmenuafterwaiting30minutes,thenpressF1forself‐calibration.

Onthenextmenuinterface,pressF1buttonagainfor“factorysettings”asshownin

Figure1‐4.

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Figure1‐4

Warning:pleaseconfirmthattheoscilloscopehasbeensafelygroundedtoavoidhazard.

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Oscilloscopeaccessingtosignal

1) Theoscilloscopehastwoinputchannelswithanadditionalexternaltriggerinput

channel.Pleasecheckthesignalaccordingtothefollowingsteps.Connectaprobe

toCH1inputterminalandsettheattenuationrateswitchontheprobeas10×

(Figure1‐5)

Model72‐7610/72‐10510UserManual

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Figure1‐5SettingofProbeAttenuationRateSwitch

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2) Itisrequiredtosetprobeattenuationcoefficientontheoscilloscope.

Attenuationcoefficientchangestheverticalrangerateofinstrument,thusmakingthe

measurementresultcorrectlyreflecttheamplitudeofmeasuredsignals.Probe

attenuationcoefficientsaresetinthefollowingways:pressF4tomakethemenu

display10×.

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Figure1‐6SettingofAttenuationCoefficientontheoscilloscope

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3) Connecttheprobepinandgroundclamptothecorrespondingterminaloftheprobe

compensationsignal.PressAUTOkey.Withinseveralseconds,squarewavedisplay

(1kHz,about3V,peak‐to‐peakvalue)isasshowninFigure1‐7.CheckCH2inthesame

way;pressOFFfunctionkeytocloseCH1;pressCH2functionkeytoturnonCH2;repeat

step2and3.

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Figure1‐7ProbeCompensationSignal

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4.ProbeCompensation

Whenconnectingtheprobewithanyinputchannelforthefirsttime,itisrequiredto

maketheadjustment,matchingtheprobewiththeinputchannel.Probewithoutbeing

compensatedandcalibratedwillcausemeasurementerrorormistake.Toadjustprobe

compensation,followthestepsbelow:

1. Settheprobemenuattenuationcoefficientas10×,placetheswitchontheprobeat

10×andconnecttheoscilloscopeprobewithCH1.Connecttheprobeendtothe

signaloutputconnectoroftheprobecompensator,andconnectthegroundclamp

tothegroundleadconnectorofprobecompensator.TurnonCH1andpressAUTO.



2.Observedisplayedwaveform



Figure1‐8aProbeCompensationandCorrection



Ifthescreendisplays“under‐compensation”or“over‐compensation”forwaveformas

showninabovefigures,usescrewdriverwithnonmetalhandletoadjustthevariable

capacitanceontheprobeuntilscreendisplays“correctcompensation”forwaveformas

showninthebelowfigure.

Over‐compensationCorrectcompensationUnder‐compensation

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