陶瓷电容型压力变送器
陶瓷电容型压力变送器2088Ceramiccapacitivepressuretran***itter概述2088陶瓷电容压力变送器采用具有***水平的陶瓷电容传感器,配合高精度电子元件,经严格的工艺过程装配而成。它采用无中介液的干式压力测量技术。充分发挥了陶瓷传感器的技术优势,使压力变送器具有优异的技术性能。它抗过载和抗冲击能力强,稳定性高,并有很高的测量精度。2088陶瓷电容压力变送器具有多种型号,多种量程,多种过程连接形式及材料。可广泛用于石油、化工、电力、冶金、制药、食品等许多工业领域,可适应工业测量的各种场合及介质,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。Generaloverview2088ceramiccapacitivepressuretran***itteradopttheinternationaladvancedceramiccapacitivesensorandhighaccuracyelectroncomponents.Itisthedrypressuretechniquewithoutmedialiquid.Theceramicpressuretran***itterhastheincomparableadvantagebecauseofitsgoodcorrosion-proof,wear-proof,strike-proofandfineaccuracyandstability.Ithasmanytypemodels,ranges,processconnectiontypesandmaterial.Itcanbewidelyusedforpetrochemical,metallurgical,lectricpower,pharmacyandfoodandsoon.特点●抗过载和抗冲击能力强过压可达量程的数倍至百倍。●精度高,重复性好稳定性高优于0.1%F.S/年。●温度漂移小由于取消了测量元件的中介液,因而使传感器获得了很高的测量精度,且受温度影响小。●抗干扰能力强防水、防尘、防振、防爆、防腐。●安装简便产品结构合理,体积小,重量轻,可直接任意位置安装。Characters●Excellentabilitytoresisttheoverloadingandconcussion●Highaccuracylevel,Goodrepetition,Goodstabilitywhichbetterthan0.1%F.S/year.●Temperaturedriftcanceledthemediumliquid,sothetran***ittergetsabetteraccuracyandthetemperaturecannotmakesomeeffectsforit.●Anti-jamming,waterproof,dustproof,vibration-proof,explode-proof,corruption-proof.●Easytoinstall,reasonableandcompactstructure,***allweight.工作原理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***大位移不大于0.025毫米,电子线路检测这一位移量后,即把这一位移量转换成对应于这一压力的标准工业测量信号。超压时膜片直接贴到坚固的陶瓷基体上,由于膜片与基体间隙只有0.1毫米,因此过载时膜片的***大位移只能是0.1毫米,所以从结构上保证了膜片不会产生过大变型,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。WorkingPrincipleThepressureofthemediumdirecteffectstheceramicfilmofthetran***itterandmakesthefilmgetsalittledisplacement.Inthecommoncondition,thedisplacementislessthan0.025mmandtheelectronwirescangettheinformationofthedisplacementandtransformittobeastandardindustrymeasuringdigital.Becausethedistancebetweenthefilmandtheceramicbodyonlyis0.1mm,thebiggestdisplacementfortheoverpressureis0.1mm.Andthetran***itterhastheabilitytoresistthestrongconcussionandoverloading.技术参数技术指标使用对象:液体、气体或蒸汽测量范围:表压:0~5KPa~6MPa;负压:-0.1MPa~2MPa输出:4~20mADC电源:12~30VDC负载特性:4~20mADC二线制负载R≤50(V-12)温度范围:环境温度-20~+70℃;标准介质温度-20~+80℃外壳防护:优于IP65防爆类型:本安型iaⅡCT5(应外配安全栅)TechniqueIndexTechniquefiguresMediums:Liquid,gasandstreamRanges:Positivepressure:0~5KPa~6MPa;Negativepressure:-0.1MPa~2MPaOutput:4~20mADCPowersupply:12~30VDCLoading:4~20mADCtwo-lineloadingR≤50(V-12)Temperature:Environment-20~+70℃;StandardMedium-20~+80℃Caseprotection:BetterthanIP65Explode-proof:EssentialsafetyiaⅡCT5(Addsafebaroutside)性能指标综合精度:精度等级:0.1%、0.25%、0.5%温漂:&plu***n;0.15%F.S/10℃稳定性:优于&plu***n;0.2%F.S/年稳定性:优于&plu***n;0.1%BFSL/年温度影响:在-20~+70℃范围内,变化量小于&plu***n;0.18%/10℃振动影响:在任何方向上振动频率为20-200H时,变化量小于&plu***n;0.02%BFSL/年冲击影响:任何方向100G冲击11ms后,变化量小于&plu***n;0.02%BFSL负载影响:只要输入变送器的端子电压高于12V,就无负载影响。位置影响:安装位置不影响零点CapabilityfiguresAccuracy:Accuracyclass:0.1%、0.25%、0.5%Temperaturedrift:&plu***n;0.15%F.S/10℃Stability:Betterthan&plu***n;0.2%F.S/YearStability:Betterthan&plu***n;0.1%BFSL/yearTemperatureeffects:Inthescopeof-20~+70℃,thechangeislessthan&plu***n;0.18%/10℃Vibrationeffects:Underthevibrationfrequencyof20-200Hz,thechangeislessthan&plu***n;0.02%BFSL/yearConcussioneffects:Aftertheconcussionof100Gfor11ms,thechangewillbelessthan&plu***n;0.02%BFSLLoadingeffects:Makesuretheendvoltagehigherthan12V,therewillbeonloadingeffectsPositioneffects:Installingplacecannoteffectthezeropoint.结构指标结构材料:膜片:氧化铝陶瓷外壳:低铜铸铝接触介质材料:SUS304;(或SUS316及SUS316L可选)过程连接:标准提供M20×1.5外螺纹(或者其它约定要求)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。StructurefiguresMaterial:Film:AluminaceramicCase:LowcoppercasingaluminumWettedparts:SUS304;(orSUS316andSUS316lforopti***)ProcessConnection:StandardM20×1.5malethread(orotherspecialrequests)Electricconnection:Itisbettertochooseφ10industrywireconnectfromanyexit.TheconnectendcanbePG16orM20×1.5,andsealtheotherend.结构尺寸Dimension图外形结构尺寸图Chart2Outlinestructure五、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。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。五、ConnectionanddebuggingSeethechartasfollow.SuggestthesupplyUstobe24V.TheconnectedgaugeshouldbeRL=250Ω。IfyouchooseotherdateforUsandRL,theRLcannotexceedRL=Vs-12/0.02.Usewirestosealtheholesonthesidesofthetran***itterorinstallthesignalwiretotheholesandfixbytightnut.Theholewithoutusedshouldbesealed.如果使用的是本质安全防爆仪表,必须与安全栅配套使用,组成本安防爆系统。Ifitistheessentialsafetypressuregauge,itisnecessarytofitwiththesafebartoformtheessentialsafetysystemasfollowing:出厂前压力变送器已按订货要求调试合格,用户无需再做调整。长时间使用后如需重新标定,可分别调整“调零电位器”和“调量程电位器”。压力量程的下限值对应4mA,上限值对应20mA.Thetran***itterhasbeendebuggedasthecustomer’srequest,noneedtodebugagain.Afterlongtimeofusing,ifneeded,itcanbedebuggedbyadjust“Zeroelectricdevice”and“Rangeelectricdevice”.Thedownlimitoftherangeshouldbecorrespondingwith4mA,anduplimitwillbewith20mA.六、安装1.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场合,同时避免强振动和冲击。3.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。4.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。六、Installationnotes1.Directinstalltothemeasuringpoint(anyangles).2.Itisbettertobewithlesstemperaturefluctuationand***oidthestrongvibration.3.Whilemeasuringthehightemperaturemediums,pleasedonotexceedthetemperaturelimitation.Ifnecessary,fititwithcoolingdevices.4.Addpressurecut-offvalvebetweenthetran***itterandthemediumandaddthedampersifthepressurechangesalot.产品详细资料请点击:陶瓷电容型压力变送器2088.pdf变送器、压力变送器、陶瓷电容型压力变送器2088)
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