卫生式流程压力变送器YS1PWHygienicFlowPressureTransmitter概述该型号为YS1的变形产品，是一款用于过程测量的压力变送器。其核心部件电容式陶瓷传感器具有一流的测量特性，特别适合在低压测量中使用。平齐安装的电容式陶瓷传感器还具有很强的耐腐蚀性，能够抵抗大多数腐蚀性介质的侵蚀。通过选用陶瓷Al2O3纯度96%的隔膜，压力变送器的介质兼容性将得到进一步提高。压力接口材料为不锈钢。传感器与压力接口的连接通过FKM密封圈密封。其他密封件材料可视客户需求提供，请咨询。此外还有多种适合流程工业不同应用的过程连接件可供用户选用。广泛用于石油、化工、电力、冶金、制药、食品等许多工业领域。GeneralRemarkThistypeisderivedfromYS1,useforprocessmeasuringpressuretransmitter.ItsCorecomponentcapacitancetypesensorhassuperiormeasuringfeatures,speciallysuitableforlowpressuremeasurement.Flushmountingcapacitancetypesensoralsohashighcorrosion-proofability,withstandmostcorrosivemedia.ByusingceramicA1203purity96%diaphragm,pressuretransmitter’smediacompatibilityisfurtherimproved.Pressureconnectionisinstainlesssteel.SensorandpressureconnectionaresealedusingFKMsealingring.Othersealingmaterialcanbemadeonrequest,pleaseconsult.Moreovertherearemanyprocessconnectionsforallkindsofflowindustriesavailableonrequest.特点●电容式陶瓷传感器无填充液，具有很强的耐腐蚀性●隔膜陶瓷Al2O3纯度96%●精度高、稳定性好、温漂系数小●出色的长期稳定性●可选防爆Ex；(仅适合4⋯20mA/2线制)●精度高，稳定性好。●敏感部件及线路板是全固体结构，坚固抗振。●抗干扰能力强，温度稳定性好;防爆壳体结构，全天候使用。features●capacitanceceramicsensorhasnofillingliquid,hasstrongcorrosion-proofability●diaphragmceramicAl2O3purity96%●highaccuracy,goodstability,smallthermaldrift●excellentlongtermstability●optionalexplosion-proofEx：(onlysuitablefor4⋯20mA/2linetype)●highaccuracy,goodstability●sensitivecomponentandcircuitboardareinsolidconstruction,rigidvibration-proof●stronginterference-proof,goodthermaldrift,explosionproofenclosurestructure,weather-proof工作原理变送器由传感器与电子元件线路组成，被测介质的压力直接作用于传感器的陶瓷膜片上，使膜片产生与介质压力成正比的微小位移，正常工作状态下，膜片最大位移不大于0.025mm，电子线路检测这一位移量后，即把这一位移量转换成对应这一压力的标准工业测量信号（即4～20）mA。超压时膜片直接贴到坚固的陶瓷基体上，由于膜片与基体的间隙只有0.1mm，过载时膜片的最大位移只能是0.1mm，所以从结构上保证了膜片不会产生过大变形。由于膜片采用高性能的工业陶瓷，因而使传感器具有很强的抗冲击及抗过载能力。WorkingPrincipleTransmitteriscomposedofsensorandelectronicelementcircuit,pressureofmeasuredmediumdirectlyappliesonsensor’sceramicdiaphragm,forcediaphragmtodisplacetinilyinproportiontopressureofmedium,undernormalworkingcondition,diaphragmdisplacenomorethan0.025mm,electroniccircuitdetectsthisdisplacement,andconvertitintostandardindustrialmeasuringsignali.e.(4～20mA)correspondingtothispressure.Whenoverpressure,diaphragmdirectlysticktosolidceramicbasebody,asthereisonly0.1mmgapbetweendiaphragmandbasebody,whenoverpressure,themaximumdiaphragmdisplacementcouldbenomorethan0.1mm,(atthattime,measuringdiaphragmstickstoceramicbracket,avoiddamage)sostructurallypreventdiaphragmfromexcessivedeformation.Becausediaphragmadoptshighfunctionalindustrialceramic,sensorissignificantlyshock-proofandoverload-proof.主要技术指标技术指标使用对象流程工业液体、气体或浆状介质测量范围0...40mbar至0...20bar输出4～20mA.DC电源13～30V.DC负载特性4～20mA.DC二线制负载R≤50(V-13)（见图-2）温度范围环境温度：-20～+70℃;存储温度：-20～+80℃标准介质温度：-25～+85℃（短时可达130℃）外壳防护优于IP65防爆类型本安型iaⅡCT5应外配安全栅MainTechicalIndexTechnicalIndexUtilityObject:Liquid,gasorsteametcMeasuringrange:0...40mbarthrough0...20barOutput:4～20mA.DCPowerSupply:13～30V.DCLoadcharacteristic:4～20mA.DC2lineloadR≤50(V-13)（seefigure-2）Temperaturelimit:Ambienttemperature：-20～+70℃;storagetemperature：-20～+80℃Standardmediumtemperature：-25～+85℃（shorttimeupto130℃）Enclosureprotection:BetterthanIP65Explosion-prooftype:IntrinsicallysafetytypeiaⅡCT5shouldhaveextrasafetybarrierTransmittersloadcharacteristicdiagram负载电阻：loadresistance电源电压：powersupplyvoltage工作区：workingarea性能指标综合精度标准提供0.5%，最高精度可达±0.25%稳定性优于±0.1%BFSL/年温度影响在-20～+70℃范围内，变化量小于±0.18%/10℃振动影响在任何方向上振动频率为20-200Hz时，变化量小于±0.02%BFSL冲击影响任何方向100G冲击11ms后，变化量小于±0.02%BFSL负载影响只要输入变送器的端子电压高于13V，就无负载影响。位置影响无FunctionalindexGeneralaccuracy:Supplystandard±0.25%BFSL/year，maximumaccuracy±0.1%BFSL/yearstability:Betterthan±0.1%BFSL/yearthermaleffect:within-20～+70℃，variationbelow±0.18%/10℃vibrationeffect:Inanydirection,vibrationfrequency20-200Hz，variationbelow±0.02%BFSL/yearimpacteffect:Inanydirection100Gimpactafter11ms,variationbelow±0.02%BFSLloadeffect:Noloadeffectaslongasvoltageinputtotransmittersterminalgreaterthan13V.positioneffect:None结构指标结构材料外壳：低铜铸铝膜片：氧化铝陶瓷纯度96%接触介质材料：SUS304(或SUS316及SUS316L可选)“O”型圈密封结构：丁腈橡胶、聚四氟乙烯或氟橡胶过程连接详见选型结构尺寸图电气连接可根据需要从任何一个出口引出，建议使用φ10工业电缆作为引线，以便密封。引出接头可选用通电缆接头PG16或M20×1.5，不引线一端用端盖封住。StructuralIndexconstructionalmaterial:enclosure：lowcoppercastaluminiumdiaphragm：aluminiumoxideceramicpurity96%Wettedpartmaterial：SUS304(oroptionalSUS316andSUS316L)“O”typering：bunaN,PTFEORfluoroelastomerprocessconnection:Refertotypechoosingconstructiondimensionaldrawingelectricconnection:Onrequestleadfromanyexit,suggestφ10industrialcableaslead,sothatitissealed.LeadoutsocketcouldbegeneralcablesocketPG16orM20×1.5，useendcaptosealnoleadend.结构及安装方式图卫生流程压力变送器的结构示意图figure-3HygienicFlowPressureTransmitterConstructionScheme1.直接安装在测量点上（任意角度）。2.尽量安装在温度梯度与温度波动小的测压点上，同时避免强振动和冲击。3.室外安装时，尽可能放置于保护盒内，避免阳光直射和雨淋，以保持变送器性能稳定和延长使用寿命。4.测量蒸汽或其它高温介质时，注意不要使变送器的工作温度超限。必要时，请安装散热装置或其它冷却装置连接。5.安装时应在变送器和介质之间加装压力截止阀，以便检修和防止取压口堵塞而影响测量精度。在压力波动范围大的场合还应加装阻尼器或压力缓冲装置。注：不得随意更换或改动可能影响防爆性能的元器件或结构。Constructionandmountingmethod1.directlymountonmeasuringpoint（anyangle）2.suggestmountonmeasuringpointwithlowertemperaturegradientandtemperaturefluctuation,meanwhileavoidvibrationandimpact.3.incaseofoutdoormounting,preferredmountinginprotectioncase,avoiddirectexposuretosunlightandrainfall,tomaintaintransmitter’sfunctionalstabilityandlongerservicelife.4.whenmeasuringsteamorotherhightemperaturemedia,makesuretransmitter’sworkingtemperaturelimitisobserved.Fitcoolerorothercoolingdeviceifnecessary.5.whenmounting,shutvalveshouldbeusedbetweentransmitterandmedium,foreasymaintenanceandtopreventpressuretakingportfromblockingthatinfluencesmeasuringaccuracy.Damperorpressurebuffershouldbeusedwherebigpressurefluctuationexists.Note：randomreplacingoralteringelementsorconstructionthatmayimpairexplosion-prooffunctionisprohibited.系统连接及调试变送器在测量系统中的连接见图3。建议电源电压Us选用24V.DC。二次仪表中采样电阻（负载电阻）RL的阻值选用250Ω。如果Us和RL选用别的数值，那么RL=VS-12/0.02值不能超过由公式计算得到的数值。注：变送器顶部两侧面的连接孔用电缆密封或信号线装配，信号电缆通过紧固螺母锁紧，不用的连接口必须密封。A：测量系统接线图在系统回路中必须采用屏蔽信号电缆，并可靠接地。B：本安型压力变送器YS-1-B本安型压力变送器采用本质安全电路，适用于爆炸危险区域，防爆等级ExiaIICT5(防爆合格证编号：CE042114)，技术性能指标与普通型压力变送器相同。在系统回路中必须采用屏蔽信号电缆，并可靠接地。SystemconnectionandadjustmentConnectionofpressuretransmitterinmeasuringsystemreferstofigure3.SuggestpowersupplyUsuses24V.DC。Samplingresistanceinsecondaryinstrument（loadresistance）RLuses250Ω。IfresistancedeviatesforUsandRL,RLvalueshallnotexceedthevaluefromformulaRL=VS-12/0.02Powersupplyisconnectedtotransmitterwithsignalcable,connectionsholesatbothsidesoftopoftransmitterissealedwithcableorassembledwithsignalcable,signalcableisfastenedbylocknuts,idleconnectionholemustbesealed.A：measuringsystemwiringschemeShieldedsignalcablemustbeusedinsystemloop,andmustbegroundedfirmly.(12-30Vdirectcurrentpowersupply)B：intrinsicallysafetytypepressuretransmitterYS-1-Bintrinsicallysafetytypepressuretransmitteradoptsintrinsicallysafetycircuit,suitableforexplosivehazardouszone,explosion-proofclassExiaIICT5(explosion-proofcertificateno.：CE042114)，technicalfunctionindexissameasstandardpressuretransmitter.Shieldedsignalcablemustbeusedinsystemloop,andmustbegroundedfirmly.产品详细资料请点击：S.YS1PW卫生式流程压力变送器.pdf压力变送器、卫生式流程压力变送器YS1PW)