TI328F/00/enTechnicalInformationLiquiphantMFTL50(H),FTL51(H)VibrationLimitSwitchLevellimitswitchforallliquids.Suitableforuseinhazardousareas,foodandpharmaceuticalsApplicationTheLiquiphantMisalevellimitswitchforuseinallliquids–forprocesstemperaturesof–50°Cto150°C–forpressuresupto100bar–forviscosityupto10000mm2/s–fordensities0.5g/cm3or0.7g/cm3othersettingsavailableonrequest–foamdetectiononrequestThefunctionisnotaffectedbyflow,turbulence,bubbles,foam,vibration,bulksolidscontentorbuild-up.TheLiquiphantisthustheidealsubstituteforfloatswitches.FTL50:Compactdesign,idealformountinginpipesandforinstallationinareasdifficulttoaccessFTL51:Withextensionpipeupto3m(6monrequest)FTL50H,FTL51H:Withpolishedtuningforkandeasy-to-cleanprocessconnectionsandhousingsforfoodandpharmaceuticalapplications.Highcorrosion-resistantAlloyC4(2.4610)isavailablefortheforkandprocessconnectionsforapplicationsinveryaggressiveliquids.EExia,EExdeandEExdprotectionenableittobeusedinhazardousareas.Yourbenefits•UseinsafetysystemsrequiringfunctionalsafetytoSIL2/SIL3inaccordancewithIEC61508/IEC61511-1•Largenumberofprocessconnectionstochoosefrom:universalusage•Widevarietyofelectronics,e.g.NAMUR,relay,thyristor,PFMsignaloutput:therightconnectionforeveryprocesscontrolsystem•PROFIBUSPAprotocol:forcommissioningandmaintenance•Nocalibration:quick,low-coststart-up•Nomechanicallymovingparts:nomaintenance,nowear,longoperatinglife•Monitoringofforkfordamage:guaranteedfunction•FDAapprovedmaterials(PFAEdlon)LiquiphantMFTL50(H),FTL51(H)2Endress+HauserTableofcontentsApplication.................................4Levellimitdetection...................................4Functionandsystemdesign.....................4Measuringprinciple...................................4Modularity..........................................4Electronicversionsforlevellimitswitches..................5Electronicversionsforlevelsensor........................5Galvanicisolation.....................................5Design.............................................5Input......................................5Measuredvariable....................................5Measuringrange(detectionrange)........................5Productdensity......................................5ElectronicinsertFEL51(AC2-wire).................................6Powersupply........................................6Electricalconnection..................................6Outputsignal........................................6Signalonalarm......................................6Connectableload.....................................6ElectronicsFEL51(AC,incompacthousing)......................7Powersupply........................................7Electricalconnection..................................7Outputsignal........................................7Signalonalarm......................................7Connectableload.....................................7ElectronicinsertFEL52(DCPNP)...................................8Powersupply........................................8Electricalconnection..................................8Outputsignal........................................8Signalonalarm......................................8Connectableload.....................................8ElectronicsFEL52(DCPNP,incompacthousing)..................9Powersupply........................................9Electrical...
