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VersaSTAT3HardwareManualVersaSTAT3ElectrochemicalSystem1.INTRODUCTION1.1.HARDWARE1.2.POTENTIOSTATICCIRCUITRY1.2.1.Potentiostaticmode1.2.2.Galvanostaticmode1.3.Software1.4.PolarityConvention1.5.InspectingYourNewInstrument1.6.Maintenance,Service,andSupport1.7.Aboutthismanual2.SAFETYANDCOMPONENTPLACEMENT2.1.SafetyConsiderations2.1.1.LineVoltageSettingsandFuses2.1.2.DefectsandAbnormalStresses2.2.ComponentPlacement2.2.1.Ventilation2.2.2.RadioFrequencyInterference2.2.3.TransientSensitivity3.INSTALLATION3.1.EnablingtheUSBportonyourPC3.2.ConnectorsandIndicators3.2.1.RearPanel3.2.1.1.INPUTPOWER3.2.1.2.USB3.2.1.3.SYNCADCINPUT3.2.1.4.DACOUTPUT3.2.1.5.AUXILIARYINTERFACE3.2.2.FrontPanel3.2.2.1.CELLCABLE3.2.2.2.INDICATORS3.3.ConnectingtothePCandCell3.3.1.ConnectingtothePC3.3.1.1.INSTALLINGTHEUSBDRIVER3.3.2.ConnectingtheCell4.SPECIFICATIONSANDPINOUTS4.1.ElectronicSpecifications4.1.1.SystemPerformance4.1.2.PowerAmplifier4.1.3.VoltageControl4.1.4.CurrentControl4.1.5.DifferentialElectrometer4.1.6.VoltageMeasurement4.1.7.CurrentMeasurement4.1.8.iRCompensation4.1.9.Potential/CurrentControl4.1.10.ImpedanceSpecifications(ifoptionavailable)4.2.PhysicalandPowerSpecifications4.3.StandardEnvironmentalConditions4.4.AUXILIARYINTERFACEPinouts4.5.CELLCABLEPinouts5.AVAILABLEOPTIONS5.1.2AHighCurrentOption5.2.FRAOption5.3.AdvancedAuxiliaryInterfaceOption5.4.PowerBoosterOptions6.WARRANTYAPPENDIX1–VersaSTAT3ExternalPowerBoosterConnectionsSafetyInstructionsandSymbolsThismanualcontainsuptothreelevelsofsafetyinstructionsthatmustbeobservedinordertoavoidpersonalinjuryand/ordamagetoequipmentorotherproperty.Theseare:DANGERIndicatesahazardthatcouldresultindeathorseriousbodilyharmifthesafetyinstructionisnotobserved.WARNINGIndicatesahazardthatcouldresultinbodilyharmifthesafetyinstructionisnotobserved.CAUTIONIndicatesahazardthatcouldresultinpropertydamageifthesafetyinstructionisnotobserved.Pleasereadallsafetyinstructionscarefullyandmakesureyouunderstandthemfullybeforeattemptingtousethisproduct.CleaningInstructionsWARNING:Usingthisinstrumentinamannernotspecifiedbythemanufacturermayimpairtheprotectionprovidedbytheinstrument.Tocleantheinstrumentexterior:•Unplugtheinstrumentfromallvoltagesources.•Removeloosedustontheoutsideoftheinstrumentwithalint-freecloth.•Removeremainingdirtwithalint-freeclothdampenedinageneral-purposedetergentandwatersolution.Donotuseabrasivecleaners.CAUTION:Topreventmoistureinsideoftheinstrumentduringexternalcleaning,useonlyenoughliquidtodampentheclothorapplicator.•Allowtheinstrumenttodrybeforereconnectingthepowercord.1.INTRODUCTIONTheVersaSTAT3(Figure1),teamedwiththeVersaStudiosoftwarepackage,comprisesasimple,flexible,andextremelypowerfulsystemforperformingawiderangeofelectrochemicaltechniques.TheVersaSTAT3isapotentiostat/galvanostatwithanoptionalfrequencyresponseanalyzer(FRA)containedinasingleunit.ItiscontrolledfromanysuitablyequippedPCbyaUniversalSerialBus(USB)interfaceusingtheVersaStudioelectrochemistrysoftwarepackage.Figure1.VersaSTAT31.1.GeneralThehostcomputerprovidesmemory,dataprocessing,input-output,andinterfacecapabilities.TheVersaSTAT3electronicallycontrolsthemeasurementunderthedirectionofthesoftwareandparametervaluesenteredfromthehostcomputer.ThecomputermustbeequippedwithaUSBport,andtheoperatingsystemmustsupporttheUSBinterface.1.2.HardwareCircuitryTheVersaSTAT3circuitryincludes:•Two16-bitdigital-to-analogconverters(DACs)forversatilewaveformgeneration.•Three16-bitanalog-to-digitalconverters(ADCs)tomeasurecurrent(I),potential(E),SYNCADCINPUT.•Anonboardmicroprocessortoperformtheexperimentdefinedbytheoperatingsoftware.•Onboardmemorytostoretheprogrammedparametersanddatapointvalues.TheVersaSTAT3operateswithVersaStudioineitherthepotentiostaticorgalvanostaticmode,describedbelow.1.2.1.PotentiostaticmodeInthismode,theVersaSTAT3controlsthepotentialattheworking-senseelectrodewithrespecttothereferenceelectrode(seeFigure2).Thecounterelectrodeisdriventothepotentialrequired(consistentwiththe+12Vcomplianceofthecontrolamplifier)toestablishthedesiredworkingpotential.Therangeoverwhichtheworkingelectrodepotentialcanbecontrolledis+10V.Figure2.Potentiostat-ModeBlockDiagram1.2.2.GalvanostaticmodeIngalvanostaticoperation,theVersaSTAT3controlsthecurrentbetweenthecounterandworkingelectrodesatthespecifiedfractionoftheselectedcurrentrange(uptothemaximumofthecurrentrange;seeFigure2).Thecounterelectrodeisdriventothepotentialrequired(consistentwiththe+12Vcomplianceofthecontrolamplifier)toestablishthedesiredcellcurrent.Thereferenceelectrodeisnotusedinthecontrolloop,butisusuallyusedtomeasurethepotentialatsomepointintheelectrochemicalcellrelativetotheworking-senseconnectionpoint.Figure3.Galvanostat-ModeBlockDiagram1.3.SoftwareTheVersaSTAT3isfullycompatiblewiththeVersaStudiosoftwareonly.TheVersaSTAT3willnotoperatewithanyothersoftwareotherthanthatspecifiedinthismanualorthemostrecentdocumentationavailableonthewebsite().Likewise,theVersaSTAT3doesnothaveanopencommandsettoallowuserprogrammingoutsideoftheVersaStudiosoftware.Th