在线甲烷监测仪0-100%LEL型号:C7-Statox501IR库号：M264307在线甲烷监测仪0-100%LELC7-Statox501IR更多信息 ProtectingpeopleandassetsfromhydrocarbonsTheinfraredabsorptionmethodofdetectionisidealforthedetectionoflargerhydrocarbonmoleculessuchasfuels.Itfeaturesenoughsensitivitytoexpandtherangeofapplicationintotheppmrange.Forinstancefuelssuchasgasoline,dieselorkerosenearemixturesofhydrocarbons.InfraredgasdetectiontheoryofoperationSomegasesabsorblightatacertainwavelength(colour).Thisabsorptionbandisspecifictothegas.Therateoftheabsorptiondependsnotonlyonthesubstancetobedetectedbutalsoonthenumberofgasmolecules(i.e.theconcentrationofthegas).Thispremiseisusedtodetectgases.Forexample,theC-Hbondinhydrocarbonmoleculeswilloscillateandabsorblightat3,4mm.Thisfactmakesitsoeasytodetectfuels.Hexane,forinstancehas14C-HbondscomparedtoMethanethathasonly4!Alightbeamisdirectedthroughacuvettefilledwiththegastobedetected.Themorehydrocarbonspresent,themorelightwillbeabsorbed.Aphotodetectorattheotherendofthecuvettemeasurestheremaininglightintensity.Thedifferencebetweentheoriginalandremaininglightintensitycorrespondstothegasconcentration.Areferencebeamwithadifferentwavelengthcompensatesforpotentialinterferencesofdust,humidityorvariationsofintensityfromthelightsource.Fail-safetechnologyFailureofimportantcomponentssuchasthelightsourceorphotodetectorwilltriggera systemfail alarm.Mostlocalauthoritieswillacceptthisasaself-diagnosticfeature.Systemsincludingaself-checkrequirelessmaintenanceandcalibration,savingtimeandmoney.Simplemaintenance:Easytoreaddisplayandnon-VintrusivecalibrationThebrightLEDdisplayoftheStatox501IRshowsthegasconcentrationinpercentL.E.L.(LowerExplosionLimit).Animportantaccessoryisthecalibrationadapter,featuringcontrolbuttonsoperatingHall-sensorsinsidetheExdhousing.Theservicemenuispasswordprotectedpreventingunauthorisedaccess.Allparameterscanbecheckedandchanged,oracalibrationcanbedoneallwithoutopeningthetransmitter.Theadapterisalsoequippedwithagasoutletsothatitcanbeusedforflow-throughapplications.ImperviouscompactdesignThedimensionsoftheStatox501IRaresmallandcompact.Thesensorcompartmentiscompletelysealed,notallowingdustorinsectstoenter.Itislocatedinthecenterofthesensorhead.Thisallowsheatradiationfromtheelectronicsandtheinfraredlamptokeeptheunitafewdegreesabovetheambienttemperaturethusavoidingcondensation.Thisinnovativedesignmakesanyadditionalheatingunnecessary,allowingthesensorheadtobeveryenergyefficient.Thissavesadditionalmoneybyeliminatingmoreexpensivewiringandabiggerpowersupplythatwouldotherwisebenecessary.ThesensorheadisratedprotectionclassIP67(6=protectionevenagainstfinedust,7=submerged1mdeepinwaterfor30minutes).Youcanhaveconfidencethatthissystemwillsafelyoperateevenintheharshestenvironment.