YS1陶瓷电容压力变送器YS1（YS-1）YS1CeramicCapacitancePressureTransmitter概述YS1(YS-1)型陶瓷电容压力变送器采用具有国际先进水平的陶瓷电容压力传感器，配合高精度电子元件，经严格的工艺过程装配而成。它采用无中介液的压力测量技术，充分发挥了传感器的技术优势，使变送器具有优异的性能，同时抗过载和抗冲击能力强、温度漂移小、稳定性高、具有很高的测量精度。YS1(YS-1)型陶瓷电容压力变送器具有多种量程、多种连接形式及多种接液材质。可广泛用于石油、化工、电力、冶金、制药、食品等许多工业领域，可适应各种工业场合及介质，是传统压力表及传统压力变送器的理想升级换代产品，是工业自动化领域理想的压力测量仪表。陶瓷电容压力变送器广泛应用于液体、气体、蒸汽压力测量，液体液位测量。GeneralRemarkYS1(YS-1)CeramicCapacitancePressureTransmitteradoptsinternationallyadvancedceramiccapacitancepressuresensor,fittedwithhighaccuracyelectronicelements,throughstrictprocessassembly.Itadoptsnomediumliquidmeasuringtechnology,fullyperformtransmitterstechnicaladvantage,maketransmittersmoreexcellentfunction,meanwhilestrongerantioverloadandantiimpactability,smallthermodrift,highstability,highmeasuringaccuracy.YS1(YS-1)CeramicCapacitancePressureTransmitterhasmanyrange,connectiontypesandwettedmaterials.Widelyusedinpetroleum,chemical,power,metallurgy,pharmaceutical,foodindustriesetc,suitableforvariousindustrialenvironments,isidealupgradereplacementoftraditionalpressuregaugeandtraditionalpressuretransmitter,isidealpressuremeasuringinstrumentinindustrialautomatization.CeramicCapacitancePressureTransmitterisbroadlyusedinliquid,gas,steampressuremeasurement,liquidlevelmeasurement.特点●精度高，稳定性好。●二线制工作方式，4～20mA信号输出。●敏感部件及线路板采用全固体结构，坚固抗振。●抗干扰能力强，温度稳定性好，防爆壳体结构，可全天候使用。●具有最优良的防腐性能，保证最好的使用可靠性。●结构轻巧，简单合理，无须支架，无须水平安装，可直接任意位置安装。Characteristic●highaccuracy,goodstability●2lineworkingtype,4~20mAsignaloutput●sensitivecomponentandcircuitboardareinsolidconstruction,rigidvibration-proof●excellentinterference-proof,goodthermaldrift,explosion-proofenclosurestructure,weather-proof●mostoutstandingcorrosion-proof,ensurebestutilityreliability●lightconstruction,simplereasonable,nobracketrequired,nohorizontalmountingrequired,availablemountingatanyposition.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（4～20mA）。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，(此时测量膜片贴到陶瓷支架上，避免损坏)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。从衬底电极①和膜片电极②之间可以检测到与压力成比例的电容变化量，电容的变化值经激光微调电路放大输出高达0.5-4.5V的直流电压，计算机可直接采样。WorkingPrincipleTransmitteriscomposedofsensorandelectronicelementcircuit,pressureofmeasuredmediumdirectlyappliesonsensorsceramicdiaphragm,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.Frombetweenliningelectrode①anddiaphragmelectrode②capacitancevariantinproportiontopressurecanbedetected,capacitancevariantvalueisamplifiedbylasermicroadjustmentcircuittooutputdirectvoltageashighas0.5-4.5V,computercansampleitdirectly.主要技术指标技术指标使用对象液体、气体或蒸汽等测量范围表压：0～1KPa～7MPa;负压：-100KPa～7MPa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)温度范围环境温度：-20～+70℃;存储温度：-40～+85℃标准介质温度：-30～+85℃（短时可达130℃）外壳防护IP65防爆标志本安型ExiaⅡCT5;防爆合格证编号：CE042114MainTechnicallndexTechnicalIndexUtilityObject:Liquid,gasorsteametcMeasuringrange:Gaugepressure:0~1KPa~7MPa;Minuspressure;-100KPa;7MpaOutput:4~20mA.DCPowerSupply:13~30V.DCLoadcharacteristic:4~20mA.DC2lineload≤50(V-13)(seefigure-2)Temperaturelimit:Ambienttemperature-20~+70℃;storagetemperature-40~+85℃Standardmediumtemperature:-30~+85℃shorttimeupto130℃Enclosureprotection:IP65Explosion-proofmark:IntrinsicallysafetytypeExiaIICT5;explosion-proofcertificateofconformityno.:CE042114性能指标综合精度提供标准±0.25%BFSL/年，最高精度±0.1%BFSL/年稳定性优于±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/年冲击影响任何方向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。位置影响无结构指标结构材料膜片材质：氧化铝陶瓷外壳材质：铝合金石铸接触介质材质：SUS304“O”型圈氟橡胶（或聚四氟乙烯）过程连接标准提供M20×1.5阳螺纹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。引出接头可选用通用电缆接头PG16或M20×1.5，不引线一端用端盖封住。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:NoneConstructionalindexconstructionalmaterial:Diaphragmmaterial：aluminiumoxideceramicEnclosurematerial：aluminiumalloystonecastWettedmaterial：SUS304“O”typeringfluoroelastomer（orPTFE）processconnection:SupplystandardM20×1.5malethreadelectricconnection:Onrequestleadfromanyexit,suggestφ10industrialcableaslead,sothatitissealed.LeadoutsocketcouldbegeneralcablesocketPG16orM20×1.5，useendcaptosealnoleadend.结构及安装方式YS1压力变送器外型尺寸图figure-3YS1PressureTransmitterExternalDimensionDrawing1.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。必要时请安装散热器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。Constructionandmountingoptions1.directlymountonmeasuringpoint（anyangle）2.suggestmountonmeasuringpointwithlowertemperaturegradientandtemperaturefluctuation,meanwhileavoidvibrationandimpact.3.incaseofoutdoormounting,preferredmountinginprotectioncase,avoiddirectexposuretosunlightandrainfall,tomaintaintransmittersfunctionalstabilityandlongerservicelife.4.whenmeasuringsteamorotherhightemperaturemedia,makesuretransmittersworkingtemperaturelimitisobserved.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4。建议电源电压Vs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。电源通过信号线接到变送器，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，不使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。System-connectionandadjustmentConnectionofpressuretransmitterinmeasuringsystemreferstofigure4.SuggestpowersupplyVsuses24V.DC。Samplingresistanceinsecondaryinstrument（loadresistance）RLuses250Ω。IfresistancedeviatesforUsandRL,RLvalueshallnotexceedthevaluefromformulaRL=VS-12/0.02。Powersupplyisconnectedtotransmitterwithsignalcable,connectionsholesatbothsidesoftopoftransmitterissealedwithcableorassembledwithsignalcable,signalcableisfastenedbylocknuts,idleconnectionholemustbeseaA：measuringsystemwiringschemeShieldedsignalcablemustbeusedinsystemloop,andmustbegroundedfirmly.B：本安型压力变送器YS1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。B：intrinsicallysafetytypepressuretransmitterYS1intrinsicallysafetytypepressuretransmitteradoptsintrinsicallysafetycircuit,suitableforexplosivehazardouszone,explosion-proofclassExiaIICT5(explosion-proofcertificateno.：CE042114)，technicalfunctionindexissameasstandardpressuretransmitter.Shieldedsignalcablemustbeusedinsystemloop,andmustbegroundedfirmly.变送器出厂前已根据用户需求，量程、精度均已调到精度范围以内，一般不需校验。但以下情况需重新校验：A.运输途中出现跌落、强烈震颠和碰撞；B.存放期超过一年；C.长时间运行后，出现大于精度范围内的误差；D.使用单位的例行检验；beforedeliverytransmitterhasbeensetrange,accuracywithinaccuracyrangeaspercustomersrequest,normallydoesntneedcalibrationbutasaexceptioniffollowingsituationsoccur：A.fallingdown,strongshockandvibrationintransit；B.over1yearstorage；C.longtimeoperation,erroroccursgreaterthanaccuracyrange;D.usersroutineinspection；如何选择压力变送器（具体订货时参考）(1)确定测量介质根据腐蚀程度的大小选择相应的变送器，一般来说非强酸、强碱均可使用以不锈钢为隔离单元的变送器，否则只能选择专为防腐蚀设计的钛合金等特制变送器。其次还需看测量介质是否粘稠，干净程度，如果粘稠介质就需要选择硬性隔离单元的变送器。(2)确定测量范围和测量方式一般选择测量范围时要考虑实际测量范围，过压测量范围，选择量程以最大测量范围为准，同时考虑过压测量范围的大小。另外需要选择正确的测量方式，如果测量差压必须选择差压变送器。(3)确定精度范围，补偿温度范围，使用温度范围根据需要测量的最低精度，一般选择略高于所要求最低精度的产品。选择时还需考虑长期稳定性指标。所谓补偿温度范围即正常工作时测量介质的温度范围，使用温度范围即使用过程中可能出现的最大温度范围，一般选择时略大于测量介质的温度范围。(4)确定供电电源、输出信号、压力螺纹接口、电气接口、机械尺寸等(5)确定是否需要防爆，需要防电磁干扰，以及外壳防水的环境指标howtochoosepressuretransmitter（refertowhenordering）(1)decidemeasuringmediumChoosecorrespondingtransmitteraccordingtocorrosivity,normallytransmitterwithstainlesssteelisolationcellisenoughfornonstrongacidstrongalkali,otherwisespecialchemicalsealproductmadeintitaniumalloyspeciallydesignedforcorrosion-proofmustbeused.Secondly,needtoknowviscosityofmeasuringmedium,cleanliness,incaseofveryviscoustransmitterofrigidisolationcellneedstobeused.(2)decidemeasuringrangeandmethodnormallywhenchoosingmeasuringrange,needtoconsideractualmeasuringrange,overpressuremeasuringrange,choosingrangeshouldrefertothebiggestmeasuringrange,meanwhileconsidervolumeofoverpressurerange.Inaddition,needtochoosecorrectmeasuringmethod,ifmeasuringpressuredifference,needtousedifferentialpressuretransmitter(3)decideaccuracyrange,compensationtemperaturerange,usingtemperaturerange.accordingtominimumaccuracy,normallychooseabithigheraccuracymeanwhilewhenchoosing,needtoconsiderlongtermstabilitycompensationtemperaturerangeisthatmeasuringmediumstemperaturerangewhenworkingnormally,usingtemperaturerangeisthebiggesttemperaturerangewhenusing,normallychoosealittlebiggertemperaturerangethanrequired.(4)decidepressureconnection,electricconnection,mechanicaldimensionsetc(5)decideifneedexplosion-proof,electromagneticinterference-proof,andambientfactorofwater-proofofenclosure产品详细资料请点击：S.YS1陶瓷电容压力变送.pdf压力变送器、防爆压力变送器陶瓷电容压力变送器YS-1、YS1)