音叉式液位开关LFV300(英文)VIP免费

TThelevelsensorsoftheLFV300seriesareuniversallyusablelimitswitchesthatdetectpredefinedfillingheightsinliquidsystemswithmillimetre-accuracy–evenunderdiffi-cultoperatingconditions.Themeasurementprincipleoftheoscillatingforkreactstochangesindensitybetweenthesurroundingairandtheliquid,andthusoperatesinde-pendentlyofthetankmaterial,containerstructuresortheliquidinvolved.Theruggedsensorrequiresnocalibrationwiththeme-diumandoperateswithoutwearormainte-nance.AreaofuseTherearealmostnorestrictionstothedevice’sareasofuseasalimitswitchintanks,storageandintermediatecontainers,ortoprotectpumpsfromdry-running–thankstotheuniversalmeasurementprincipleoftheLFV300anditsflexibledesign.Atube-ex-tendedvariantforverticalmountingwithupto6metresswitchingdistancetothetopofthecontainerisalsoavailable–theLFV330.Awideselectionofflange,threadsandhygi-enicconnectionsallowcustomer-specificso-lutions.Thedeviceissuitableforhygienicap-plicationsandcanbecleanedusingSIPandCIPprocesses.Therearealsovariantsforuseinpotentiallyexplosiveatmospheres,topreventoverfilling(incompliancewithWHG),andwithmarinecertification.Advantages:Ruggeddevicedesign„Flexibleconceptallowscustomer-„specificsolutions,particularlyinhygienicareasandEx-zonesTeachingwithoutfilling„Veryhighreproducibility„LevelswitchforfullandemptymessagesVibroniclevelswitchTheLFV300universallimitswitchforliquids–ruggedandreliablemeasurementofliquidsusingthetuningforkprincipleDATASHEET2SICK2009-03-01LFV300FaultmonitoringTheelectronicsmoduleofLFV300monitorscontinuouslythefollowingcriteria:Strongcorrosionordamageonthetuningfork„Lossofvibration„Linebreaktothepiezodrive„TypeoverviewLFV310LFV330AttributesPreferredapplication:LiquidsLiquidsLength:-80…6000mm(3.15…236.22in)tubeextentionProcessconnection:ThreadG¾A,G1A,flanges,hygienicfittingsThreadG¾A,G1A,flanges,hygienicfittingsProcesstemperature:-50…+150°C(-58…+302°F)-50…+250°C(-58…+482°F)withtemperatureadapter-50…+150°C(-58…+302°F)-50…+250°C(-58…+482°F)withtemperatureadapterProcesspressure:-1…64bar(-14.5…928psi)-1…64bar(-14.5…928psi)Signaloutput:Relay,transistor,NAMURoutput,contactlesselectronicswitchRelay,transistor,NAMURoutput,contactlesselectronicswitchHousingtypes1Plastichousing2Aluminiumhousing3Stainlesssteel123DimensionsLFV3102009-03-01SICK3ElectricalConnection1.PreparingtheconnectionNotesafetyinstructionsAlwayskeepinmindthefollowingsafetyinstructions:Connectonlyinthecompleteabsenceoflinevoltage„TakenoteofsafetyinstructionsforExapplicationsInhazardousareasyoushouldtakenoteoftheappropriateregulations,conformityandtypeapprovalcertificatesofthesensorsandpowersupplyunits.Inhazardousareas,onlyuseapprovedcableconnectionsforLVF310/330.SelectconnectioncableforExapplicationsTakenoteofthecorrespondinginstallationregulationsforExapplications.1Thread2Tri-Clamp3ConeDN254BoltingDN405FlangeLSensorlength,seechapter„Technicaldata“LFV300Temperatureadapter-LFV310/33018,5mm(47/64“)36mm(127/64“)19mm(3/4“)123451Thread2Tri-Clamp3ConeDN254BoltingDN405FlangeLFV33018,5mm(47/64“)36mm(127/64“)32(G¾A,¾“NPT)41(G1A,1“NPT)19mm(3/4“)1234532(G¾A,¾“NPT)41(G1A,1“NPT)4SICK2009-03-012.WiringplanRelayoutputWerecommendconnectingLFV300insuchawaythattheswitchingcircuitisopenwhenthereisalevelsignal,linebreakorfailure(safecondition).Therelaysarealwaysshowninnon-operativecondition.LFV300-oscillator...