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首页 防爆附件_安全栅_isb

防爆附件_安全栅_isb.pdf

防爆附件_安全栅_isb

称重设备管理
2012-07-19 0人阅读 0 0 0 暂无简介 举报

简介:本文档为《防爆附件_安全栅_isbpdf》,可适用于工程科技领域

IntrinsicallySafeBarriernicalManualISBISBISBISBTechA©MettlerToledo,IncNopartofthismanualmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandrecording,foranypurposewithouttheexpresswrittenpermissionofMettlerToledo,IncUSGovernmentRestrictedRights:ThisdocumentationisfurnishedwithRestrictedRightsCUSTOMERFEEDBACKYourfeedbackisimportanttous!Ifyouhaveaproblemwiththisproductoritsdocumentation,orasuggestiononhowwecanserveyoubetter,pleasefilloutandsendthisformtousOr,sendyourfeedbackviaemailto:qualityfeedbackmtwtmtcomIfyouareintheUnitedStates,youcanmailthispostpaidformtotheaddressonthereversesideorfaxitto()IfyouareoutsidetheUnitedStates,pleaseapplytheappropriateamountofpostagebeforemailingYourName:Date:OrganizationName:METTLERTOLEDOOrderNumber:Address:PartProductName:PartModelNumber:SerialNumber:CompanyNameforInstallation:PhoneNumber:()FaxNumber:()ContactName:EmailAddress:PhoneNumber:PleasechecktheappropriateboxtoindicatehowwellthisproductmetyourexpectationsinitsintendeduseMetandexceededmyneedsMetallneedsMetmostneedsMetsomeneedsDidnotmeetmyneedsCommentsQuestions:DONOTWRITEINSPACEBELOWFORMETTLERTOLEDOUSEONLYRetailLightIndustrialHeavyIndustrialCustomRESPONSE:IncludeRootCauseAnalysisandCorrectiveActionTakenBAFOLDTHISFLAPFIRSTBUSINESSREPLYMAILFIRSTCLASSPERMITNOCOLUMBUS,OHPOSTAGEWILLBEPAIDBYADDRESSEEMettlerToledo,IncQualityManagerMTWTPOBoxColumbus,OHUSANOPOSTAGENECESSARYIFMAILEDINTHEUNITEDSTATESPleasesealwithtapeINTRODUCTIONThispublicationisprovidedsolelyasaguideforindividualswhohavereceivedTechnicalTraininginservicingtheMETTLERTOLEDOproductInformationregardingMETTLERTOLEDOTechnicalTrainingmaybeobtainedbycontacting:METTLERTOLEDOPolarisParkwayColumbus,Ohio(USandCanada)(AllOthers)FCCNoticeThisdevicecomplieswithPartoftheFCCRulesandtheRadioInterferenceRequirementsoftheCanadianDepartmentofCommunicationsOperationissubjecttothefollowingconditions:()thisdevicemaynotcauseharmfulinterference,and()thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesiredoperationThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigitaldevice,pursuanttoPartofFCCRulesTheselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhentheequipmentisoperatedinacommercialenvironmentMETTLERTOLEDORESERVESTHERIGHTTOMAKEREFINEMENTSORCHANGESWITHOUTNOTICENOTESPRECAUTIONSWARNINGDISCONNECTALLPOWERTOTHISUNITBEFOREINSTALLING,SERVICING,CLEANING,ORREMOVINGTHEFUSEFAILURETODOSOCOULDRESULTINBODILYHARMANDORPROPERTYDAMAGECAUTIONOBSERVEPRECAUTIONSFORHANDLINGELECTROSTATICSENSITIVEDEVICESWARNINGONLYPERMITQUALIFIEDPERSONNELTOSERVICETHISEQUIPMENTEXERCISECAREWHENMAKINGCHECKS,TESTSANDADJUSTMENTSTHATMUSTBEMADEWITHPOWERONFAILINGTOOBSERVETHESEPRECAUTIONSCANRESULTINPERSONALINJURYANDORPROPERTYDAMAGECAUTIONBEFORECONNECTINGORDISCONNECTINGANYINTERNALELECTRONICCOMPONENTSORINTERCONNECTINGWIRINGBETWEENELECTRONICEQUIPMENT,ALWAYSREMOVEPOWERANDWAITATLEASTTHIRTY()SECONDSFAILURETOOBSERVETHESEPRECAUTIONSCOULDRESULTINDAMAGETOORDESTRUCTIONOFTHEEQUIPMENT,ORBODILYHARMWARNINGMETTLERTOLEDOASSUMESNORESPONSIBILITYFORCORRECTINSTALLATIONOFTHISBARRIERINAHAZARDOUSAREAAPPLICATIONTHEINSTALLERMUSTBEFAMILIARWITHALLWIRINGCODESANDALLINSTALLATIONREQUIREMENTSREADthismanualBEFOREoperatingorservicingthisequipmentFOLLOWtheseinstructionscarefullySAVEthismanualforfuturereferenceDONOTallowuntrainedpersonneltooperate,clean,inspect,maintain,service,ortamperwiththisequipmentALWAYSDISCONNECTthisequipmentfromthepowersourcebeforecleaningorperformingmaintenanceWARNINGALLMETTLERTOLEDOISBBARRIERSAREDESIGNEDTOWORKWITHTERMINALSTHATPROVIDEPOSITIVEEXCITATIONVOLTAGEREFERENCEDTOLOGICGROUNDONLYTHEYARENOTCOMPATIBLEWITHTERMINALSWHICHPROVIDENEGATIVEEXCITATIONVOLTAGECONNECTINGTHISBARRIERTOANINCOMPATIBLETERMINALCOULDRESULTINDAMAGETOTHEBARRIERWARNINGINORDERTOUSETHISBARRIERUTILIZINGTHEFMAPPROVALFORANAREACLASSIFIEDASCLASSI,IIORIII,DIVISIONOR,GROUPSA,B,C,D,E,FORG,TEMPERATURECODET,METTLERTOLEDOCONTROLDRAWINGRMUSTBEFOLLOWEDWITHOUTEXCEPTIONINORDERTOUSETHEBARRIERUTILIZINGTHEKEMAAPPROVALASEExiaIIC,OREExdIIBHiaIICT,THEAPPROVALCERTIFICATEEXEANDEXEXANDALLLOCALREGULATIONSMUSTBEFOLLOWEDWITHOUTEXCEPTIONFAILURETODOSOCOULDRESULTINBODILYHARMANDORPROPERTYDAMAGEWARNINGTHEISBXANDISBXHAVEATEMPERATURERATINGOFT(°C˚F)THEYMUSTNOTBEUSEDINAREASWHERETHEAUTOIGNITIONTEMPERATUREOFTHEHAZARDOUSENVIRONMENTISBELOWTHISRATINGWARNINGBEFORESERVICINGTHEISBXORISBX,BESURETHEAREAHASBEENCLEAREDOFALLHAZARDSANDOFFICIALNOTIFICATIONOFSUCHHASBEENRECEIVEDDONOTSERVICETHESEMODELSIFTHEHAZARDISSTILLPRESENTINTHEAREACONTENTSIntroductionModelsHazardousAreaClassificationSpecificationsHazardousAreaApprovalsSystemApprovalsfortheBarrierEntityApprovalsfortheBarrierEuropeanApprovalsUnitedStatesApprovalsCanadianStandardsAssociationApprovalTemperatureRatingCalculationsApplicationExampleUsingEntityValuesInstallationMountingtheISBandISBBarrierMountingtheISBXandISBX(NEMATypeFlameproofBarrier)WiringtheBarrierGroundingSealing(Metrology)ISBandISBBarriersISBXandISBXBarriersServiceBeforeServicingFuseReplacementReplacementPartsControlDrawingsandApprovalCertificatesNOTESChapter:IntroductionModels()IntroductionThismanualdescribestheMETTLERTOLEDOintrinsicallysafebarrier(ISB),modelsISBISBXandISBISBX,andprovidesinstallationguidelinesforinstallingtheKEMAandFactoryMutualapprovedISBWARNINGMETTLERTOLEDOASSUMESNORESPONSIBILITYFORCORRECTINSTALLATIONOFTHISBARRIERINAHAZARDOUSAREAAPPLICATIONTHEINSTALLERMUSTBEFAMILIARWITHALLWIRINGCODESANDALLINSTALLATIONREQUIREMENTSModelsMETTLERTOLEDOoffersfourISBmodelsbaseduponthedifferentexcitationvoltagesoftheterminalconnectedtothebarrierandtheenvironmentinwhichthebarrierwillbelocatedMODELOPERATINGVOLTAGERANGEENCLOSUREENVIRONMENTISBtoVDCGeneralPurposeSafeAreaISBXtoVDCNEMAtypeFlameproofHazardousAreaISBtoVDCGeneralPurposeSafeAreaISBXtoVDCNEMAtypeFlameproofHazardousAreaTheISBandISBmodelsaredesignedforuseinasafeareasuchasacontrolroomorsimilarenvironmentTheISBXandISBXmodelsincludeNEMAtypeflameproofenclosuresforinstallationwithinahazardousareaWiringconnectionstoallmodelsaremadeviaremovableterminalstripconnectorsTherearenosealingfittingsoradaptersincludedwiththeISBXorISBXmodelsforthetwo”NPT(nationalpipethread)accessholesintheenclosureThereisanoptionalkit()whichcontainstwo”conduitsealsThereisalsoanoptionalkit(),whichincludestwoadapterstoconvertthe”NPTthreadedholestommthreadedholesforcompatibilitywithmetricfittingsTheadaptershavethefollowingapproval:BASEEFAEExdIICEExeIITheISBandISBXmodelsaredesignedtoworkwithterminalsprovidingamaximumexcitationvoltageofvoltsDCreferencedtosignalgroundTheISBandISBXmodelsaredesignedtoworkwithterminalsprovidingamaximumoffromvoltsDCtovoltsDCexcitationvoltageasreferencedtosignalgroundTheexcitationmustbeunipolarThepositiveexcitationvoltagemustalwaysbepositive,(neverbenegative)andthenegativeexcitationvoltagemustbeatgroundpotentialThesebarriersareNOTcompatiblewithbipolarpositiveandnegative“gated”loadcellexcitationMETTLERTOLEDOISBISBISBISBTechnicalManual()WARNINGALLMETTLERTOLEDOISBBARRIERSAREDESIGNEDTOWORKWITHTERMINALSTHATPROVIDEPOSITIVEEXCITATIONVOLTAGEREFERENCEDTOLOGICGROUNDONLYTHEYARENOTCOMPATIBLEWITHTERMINALSWHICHPROVIDENEGATIVEEXCITATIONVOLTAGECONNECTINGTHISBARRIERTOANINCOMPATIBLETERMINALCOULDRESULTINDAMAGETOTHEBARRIERIntheAppendixofthismanual,thereareMETTLERTOLEDOcontroldrawingsandagencyapprovalcertificatesTheISBmustbeinstalledaccordingtothisinformationNoexceptionstothesedrawingsorcertificatesarepermittedInaddition,theinstallermustbefamiliarwithallotherwiringandinstallationcodesandrequirementsWARNINGINORDERTOUSETHISBARRIERUTILIZINGTHEFMAPPROVALFORANAREACLASSIFIEDASCLASSI,IIORIII,DIVISIONOR,GROUPSA,B,C,D,E,FORG,TEMPERATURECODET,METTLERTOLEDOCONTROLDRAWINGRMUSTBEFOLLOWEDWITHOUTEXCEPTIONINORDERTOUSETHEBARRIERUTILIZINGTHEKEMAAPPROVALASEExiaIIC,OREExdIIBHiaIICT,THEAPPROVALCERTIFICATEEXEANDEXEXANDALLLOCALREGULATIONSMUSTBEFOLLOWEDWITHOUTEXCEPTIONFAILURETODOSOCOULDRESULTINBODILYHARMANDORPROPERTYDAMAGEHazardousAreaClassificationThehazardousareamustbeclassifiedbyanagentofthecustomerMETTLERTOLEDODOESNOTCLASSIFYHAZARDOUSAREAS!Aftertheclassificationofthehazardousareahasbeendetermined,thesuitabilityofthebarriermustbeconfirmedIfthereareanyconcernsregardingthesuitabilityoftheISB,consultyourauthorizedMETTLERTOLEDOsalesorservicerepresentativebeforeinstallingthebarrierandapplyingpowerChapter:IntroductionSpecifications()SpecificationsISBISBISBXISBXPhysicalDimensions(WxDxH)xXin(xxmm)xxin(xxmm)Weightlb(kg)lb(kg)ConstructionCoversareABSplasticCastaluminumalloycontainingnotmorethanmagnesiumbyweightMountingDirectlytoNSDINrail(includinglockinglever)orsurfacemountusingfour#orMscrewsSurfacemountusingtwo”orMboltsHazardousAreaApprovalsFMJI#KEMANoExECSAApplicationSubmittedFMJI#KEMANoExEXCSAApplicationSubmittedMetrologyApprovalsNTEPApplicationSubmittedNMiAsInstrumentPeripheralCanadaApplicationSubmittedEnvironmentDry,nonhazardousareasonlyWashdown,withinhazardousareasOperatingVoltagestoVDCtoVDCtoVDCtoVDCReplaceableFusesYesspecialmAcartridgetypeQtyonISBandqtyonISBOperatingTemperature˚to˚F(˚to˚C)StorageTemperature˚to˚F(˚to˚C)NonISScrewTerminalWireSize#AWG(mm)ISScrewTerminalWireSize#AWG(mm)GroundingMethodandTerminalWireSizeNickelplatedbrasslugonPCB#AWG(mm)maxNickelplatedbrasslugonPCB#AWG(mm)maxand#groundingscrewexternaltoenclosureShippingWeightlb(kg)lb(kg)ShippingDimensions(WxDxH)xXin(xxmm)xxin(xxmm)METTLERTOLEDOISBISBISBISBTechnicalManual()NOTESChapter:HazardousAreaApprovalsSystemApprovalsfortheBarrier()HazardousAreaApprovalsTheISBandISBmodelshavebeendesignedtobemountedinasafeareasuchasacontrolroomorsimilarenvironmentIftheISBistobeinstalledwithinahazardousarea,theISBXorISBXmodels(NEMAtypeflameproofenclosureversion)mustbeusedWARNINGTOUSETHISBARRIERUTILIZINGTHEFMAPPROVALFORANAREACLASSIFIEDASCLASSI,IIORIII,DIVISIONOR,GROUPSA,B,C,D,E,FORG,TEMPERATURECODET,METTLERTOLEDOCONTROLDRAWINGRMUSTBEFOLLOWEDWITHOUTEXCEPTIONTOUSETHEBARRIERUTILIZINGTHEKEMAAPPROVALASEExiaIIC,OREExdIIBHiaIICT,THEAPPROVALCERTIFICATEEXEANDEXEXANDALLLOCALREGULATIONSMUSTBEFOLLOWEDWITHOUTEXCEPTIONFAILURETODOSOCOULDRESULTINBODILYHARMANDORPROPERTYDAMAGESystemApprovalsfortheBarrierDependinguponthebaseorloadcellsusedwiththeISBandthegeographiclocation,safetyapprovalsmaybebasedupona“system”approvalA“system”approvalevaluatesthecombinationofcertainloadcellswiththebarrierasacompletesysteminsteadofevaluatingeachpartindividuallyAcontroldrawinglistingtheloadcellsthatareapprovedforusewiththebarrieristhencreatedAnyoftheloadcellsonthecontroldrawingmaythenbeusedwiththebarrierinanapprovedsystemInordertoproperlyapplytheISBusingthesystemapproval,certainguidelinesmustbefollowedTheseguidelineswillbelistedoneitherthecontroldrawingofthebarrierorthecontroldrawinglistingtheloadcellsSpecificsforany“system”approvalfortheISBwillbedescribedinthefollowingapprovalagencysectionsofthismanualEntityApprovalsfortheBarrierDependinguponthebaseorloadcellsusedwiththeISBandthegeographiclocation,safetyapprovalsmaybebaseduponanentityparameterapprovalThistypeofapprovalpermitstheapplicationofindividuallyapprovedcomponents(evenfromvariousmanufacturers)tobeusedtogethertobuildasolutionwhichisapprovedApplyingtheISBusingentityvaluesrequirescomparisonoftheapprovalvaluesfromthedifferentcomponentsMETTLERTOLEDOISBISBISBISBTechnicalManual()Inordertoproperlyapplythebarrierusingentityparameters,acomparisonmustbemadebetweentheentityparametersofthebarrierandtheentityvaluesoftheloadcellsincludingallconnectingcablesTheseentityparametersincludevoltage,current,power,capacitanceandinductanceThebarrierandloadcells(includingconnectingcables)mustcompareasfollowsinorderforthewiringtobeconsideredintrinsicallysafe:VmaxorUI(Maximumvoltagepermitted)≥VtorUo(Totalvoltageoutput)ImaxorII(Maximumcurrentpermitted)≥ItorIo(Totalcurrentoutput)PmaxorPI(Maximumpowerpermitted)≥PtorPo(Totalpoweroutput)Ci(Unprotcapacitance)Ccable(Cablecapacitance)≤CaorCo(Allowablecapacitance)Li(Unprotectedinductance)Lcable(Cableinductance)≤LaorLo(Allowableinductance)ThedescriptionsfortheentityparametersassociatedwiththeISBareunderlinedintheaboveformulasTheotherparametersarerelatedtothebase,loadcellsortheconnectingcableIftheaboveconditionsarenottrue,thenthecircuitwillnotbeintrinsicallysafeandmustnotbeinstalledinahazardousareaIftheparameterscomparefavorablyasshownabove,thenthecircuitisintrinsicallysafeandcanbeinstalledinahazardousareaAlwaysrefertotheelectricalregulationsforthecountryofinstallationforspecificwiringrequirementsEuropeanApprovalsTheEuropeansafetyapprovalsfortheISBarebaseduponentityvaluesThesystemapprovalisnotapplicableforthisproductinEuropeancountriesTheISBandISBbarriersweresubmittedtoKEMAforcompliancetoCENELECstandardsENandENTheISBXandISBXbarriersweresubmittedforcompliancetoENandENTheywereapprovedasintrinsicallysafedevicesan

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