油液水份含量传感器--FPCXXX-HTM2500B3C4OIL-Preliminary-data-

PreliminarySpecificationHTM2500B3C4OIL–TemperatureandOilHumiditySensorHTM2500B3C4OILHPC040RevB•OilHumiditySensor•Humiditycalibratedwithin+/-2%@55%RHinAIR.Testedinoil.•TemperaturemeasurementthroughNTC10kOhms+/-3%directoutput•Typical1to4VoltDCoutputfor0to100%RHat5VdcDESCRIPTIONBasedontheruggedHTS2030SMDhumidity/temperaturesensor,HTM2500B3C4OILisadedicatedhumidityandtemperaturetransducerdesignedforindustrial,truckandautomotiveapplicationswhereareliableandaccuratemeasurementofwaterinoilcontentisneeded.Directinterfacewithamicro-controllerismadepossiblewiththemodule’shumiditylinearvoltageoutput.Customizedversionsareavailableuponrequest.FEATURES•Fullinterchangeability•Highreliabilityanddemonstratedlongtermstabilityinoil•Ratiometrictovoltagesupply•SensitiveelementswithuniquemechanicalandchemicalrobustnessHumiditySensorSpecificFeatures•Instantaneousde-saturationafterlongperiodsinsaturationphase•Fastresponsetime•Highresistancetotruckandautomotivechemicals•Patentedsolidpolymerstructure•AccurateandrepeatableOilHumiditySensitivity.TemperatureSensorSpecificFeatures•Stable•HighsensitivityAPPLICATIONS•Truck•Automotive•[e-mail]2500B3C4OIL–TemperatureandOilHumiditySensorHTM2500B3C4OILFPCXXXRevA°CStorageHumidityRHstg0to100%RHSupplyVoltage(Peak)Vs7VdcHumidityOperatingRangeRH0to100%RHTemperatureOperatingRangeTa-40to105°CPressureP5barPeakconditions:lessthan10%oftheoperatingtimeELECTRICALCHARACTERISTICS(Ta=23°C,Vs=5Vdc+/-5%,RL1MΩunlessotherwisestated)HumidityCharacteristicsSymbolMinTypMaxUnitHumidityMeasuringRangeRH199%RHRelativeHumidityAccuracy(10to95%RH)–INAIRRH+/-3+/-5%RHSupplyVoltageVs4.755.005.25VdcNominalOutput@55%RH(at5Vdc)Vout2.422.482.54VCurrentconsumptionIc1.21.5mATemperatureCoefficient(10to50°C)Tcc+0.1%RH/°CAverageSensitivityfrom33%to75%RHΔVout/ΔRH+26mV/%RHSinkCurrentCapability(RL=15kΩ)Is300μARecoverytimeafter150hoursofcondensationtr10sHumidityHysteresisINAIR+/-1%RHLongtermstabilityINAIRT+/-0.5%RH/yrTimeConstant(at63%ofsignal,static)33%to76%RHINAIRτ10sOutputImpedanceZ70Ω(Ta=25°C)TemperatureCharacteristicsSymbolMinTypMaxUnitNominalResistance@25°CR10kΩBetavalue:B25/100β360037303800TemperatureMeasuringRangeTa-40105°CNominalResistanceTolerance@25°CRN23%BetaValueToleranceβ3%ResponseTimeτ[e-mail]2500B3C4OIL–TemperatureandOilHumiditySensorHTM2500B3C4OILFPCXXXRevA(ISO32grade)at60°C050010001500200025003000350040000200400600800100012001400160018002000WaterDilution(ppm)HTM2500B3C4OILVoltage(mV)[e-mail]2500B3C4OIL–TemperatureandOilHumiditySensorHTM2500B3C4OILFPCXXXRevA•TypicaltemperatureoutputDependingontheneededtemperaturemeasurementrangeandassociatedaccuracy,wesuggesttwomethodstoaccesstotheNTCresistancevalues.RTNTCresistanceinΩattemperatureTinKRNNTCresistanceinΩatratedtemperatureTinKT,TNTemperatureinKβBetavalue,materialspecificconstantofNTCeBaseofnaturallogarithm(e=2.71828)
TheexponentialrelationonlyroughlydescribestheactualcharacteristicofanNTCthermistorcan,however,asthematerialparameterβinrealityalsodependontemperature.Sothisapproachissuitablefordescribingarestrictedrangearoundtheratedtemperatureorresistancewithsufficientaccuracy.Forpracticalapplications,amoreprecisedescriptionoftherealR/Tcurvemayberequired.Eithermorecomplicatedapproaches(e.g.theSteinhart-Hartequation)areusedortheresistance/temperaturerelationasgivenintabulationform.Thebelowtablehasbeenexperimentallydeterminedwithutmostaccuracyfortemperatureincrementsof1degree.Actualvaluesmayalsobeinfluencedbyinherentself-heatingpropertiesofNTCs.PleaserefertoMEAS-France/HumirelApplicationNoteHPC106“LowpowerNTCmeasurement”.•Temperaturelook-uptableQUALIFICATIONPROCESSRESISTANCETOPHYSICALANDCHEMICALSTRESSES•HTM2500B3C4HThaspassedthroughqualificationprocessesofMEAS-FRANCEandenginemanufacturersincludingvibration,shock,storage,hightemperatureandhumidity,ESD.•Additionaltestsbaseduponcustomerspecificationsmaybeimplementedonrequest.Temp(°C)R(Ω)Temp(°C)R(Ω)-301691492012474-251255462510000-2094143308080-1571172356569-1054308405372-54150545442403201450366152501155303910196916025361515618652128-×=NTTNTeRR11β[e-mail]2500B3C4OIL–TemperatureandOilHumiditySensorHTM2500B3C4OILFPCXXXRevAénéralEisenhowerBP2370531037TOULOUSECEDEX1FRANCETél:[phone]Fax:[phone]Sales:[e-mail]heethasbeencarefullyreviewedandisbelievedtobeaccurate;however,noresponsibilityisassumedforinaccuracies.Furthermore,thisinformationdoesnotconveytothepurchaserofsemiconductordevicesanylicenseunderthepatentrightstothemanufacturer.MeasFrancereservestherighttomakec