智能系列电容式差压/ 压力变送器
智能系列电容式差压/压力变送器BLD-3351Intelligentseriescapacitivedifferential/pressuretransducer概述BLD-3351小型化系列压力/差压变送器是采用国外应用最广泛,技术最为成熟的电容式传感器芯体,并引进国外全套生产工艺和技术,严格执行质量管理体系9001:2000标准,生产出的最新型系列化压力/差压变送器。产品模块化设计和全贴片封装,多款精致独特的塑料模具配以先进的激光雕刻手段,使得产品更加紧凑完美。BLD-3351系列压力/差压变送器针对国内不同用户的要求,同时推出N型(普通模拟型)、和S型(标准智能型)二种规格;背光蓝屏液晶表头克服夜间无法读数的缺陷;智能系列通过就地按钮,可现场调零或重新标定量程,通过手操器或通讯软件还可实现无源标定和数据组态。根据用户的特殊需求,智能化系列最大可达到宽量程比(50:1)和高精度(0.1%)。采用一体化电容传感器结构,从根本上消除了安装应力和密封失效问题,大大提高了可靠性和稳定性。SummarizeBLD-3351miniaturizationseriespressure/differentialtransducerareusecapacitivesensorcore,andadvancedproductiontechnicsandtechnology,perform9001:2000standardstrictly,producenewtypepressure/transducer.BLD-3351seriespressure/differentialtransducerhasNtype(standardsimulationtype)andStype(standardintelligenttype);apheliotropicblueLCDscreenovercomesunreadnessinnight;Intelligentseriesuselocalbutton,canadjustzeroorresetrange.Accordingtocustomerrequest,itcanreachrangeratio50:1andaccuracy0.1%.Useintegrativecapacitancetransducerconfiguration,hasreliabilityandstability.特点●量程迁移比大●全系列统一结构设计互换性强●通过显示表按键实现现场组态,不需要手操器或PC机●实现PV清零●具有自诊断功能●宽视角背光液晶显示●高精度、高稳定性、高可靠性●HART协议数字通讯技术Characteristic●rangetransferencelarge●Sameconfigurationofthisseries,caninterconnect●displaygaugeoutfitkey-presscontrolslocalconfiguration,needntmanualwareorPCmachine.●PVreset●withselfdiagnosisfunction●broadvisualangleapheliotropicLCDscreen●highaccuracy,highstability,highreliability●HARTnumeralcommunicationtechnology应用BLD3351S智能型差压/压力变送器可广泛的应用于石油、化工、钢铁、电力食品、造纸、纺织、医药、轻工、环保等工业领域,实现对各种流体的差压、压力、流量、液位等的测量和控制,适用于各种腐蚀性介质环境及恶劣、危险场所,能够最大限度的满足客户的需要。工作原理过程压力通过两侧或一侧的隔离膜片、灌充液传至δ室的中心测量膜片。中心膜片是一个张紧的弹性元件,它对于作用在其上的两侧压力差产生相应变形位移,其位移与差压成正比,最大位移约0.1mm,这种位移转变为电容极板上形成的差动电容,由电子线路把差动电容转换成二线制的4~20mADC输出信号。(见图1)ApplicationBLD3351Sintelligenttypedifferential/pressuretransduceruseforpetroleum,chemicalindustry,steel,electricpower,food,papermaking,weave,medicine,lightindustry,environmentaletc.controlandmeasureliquiddifferentialpressure,pressure,runoff,applyforcorrosivemedium,canfitforcustomerrequest.WorkingprincipleProcesspressurethroughtowsidesoronesideseparatediaphragm,filledliquidtransmittocentermeasuringdiaphragmofchamber.Centerdiaphragmisastretchflexibilityelement.Whenitarisespressureonthesides,itwillhasrelevantdisplacement,thedisplacementandthedifferentialpressurearedirectratio.maximaldisplacementis0.1mm.Thiskindofdisplacementchangeintodifferentialcapacitanceonthecapacitanceboard,electroncircuitrytransformdifferentialcapacitanceintotwolines4~20mADCoutputsignal(scheme1)技术指标Technologyindex精度Accuracy:0.1级0.2级输出信号Outputsignal:4-20mA(输出信号可选择线性或平方根输出,输出与HART协议兼容的数字信号)量程迁移迁移比Rangedisplacement:10:1~50:1(在测量极限范围内,参照调试中的有源或无源迁移)displacementratio10:1~50:1零点迁移Zerodisplacement:(条件:在测量极限范围内,产品量程≥最小量程,在迁移比内任意迁移)(condition:withinmeasuringrange:range≥minimumrange,movefreewillwithindisplacementratio).清零点当前值(在测量模式下,参照调试中的PV清零,对量程无影响),当前显示值与0值的偏差在50%FS以内,通过PV清零操作实现当前值清0,若偏差超过50%以外,PV值清零无效。setzero,currentlyshowvalueand0valuewindageisunder50%FS,Pvsetzerocurrentlyshowvalue0,ifwindageisover50,Pvsetzeroisinvalid.零点无源迁移(参照调试中的无源迁移,零点迁移后满度必须相应进行迁移,否则量程出错)Zeropassivedisplacement(refertodebugpassivedisplacement,afterzerodisplacementmustbemoved,otherwisetherangewillbewrong.)零点有源迁移(参照调试中的有源迁移,零点迁移后满度必须相应进行迁移,否则量程出错)Zerofountaindisplacement(refertodebugfountaindisplacement,afterzerodisplacementmustbemoved,otherwisetherangewillbewrong.)稳定性Stability:在十二个月内,不超过变送器的精确度(在最大量程时)Within12months,isnotovertheaccuracy(atmaximalrange)温度影响TemperatureInfluence:在最大量程时0.05%FS10℃(0.1级)或0.045FS10℃(0.075级)(量程迁移后温度影响会相应变大)atmaximalrange0.05%FS10℃(0.1).工作温度:-30~85℃;常规产品补偿温度:-20~70℃;(相对于25℃;其他特殊温度补偿由客户在订货时说明。workingtemperature:-30~85℃;compensativetemperature:-20~70℃;(relativeto25℃;过载及静压影响overloadingandsta-ticpressureinfluence:过载能力:200%FSOverloadingcapacity:200%FS影响量:最大量程时0.2%FSinfluencecapacity:maximalrange0.2%FS静压影响:最大量程时0.25%FSstaticpressureinfluence:maximalrange0.25%FS供电电源powersupply:12~45VDC;标准电压:24VDC;电源影响量:〈0.005%/Vpowersupply12~45VDC;standardvoltage:24VDC;powersupplyinfluencecapacity:〈0.005%/V〉负载特性Loadspeciality:负载RL与供电电压VS有关系LoadRlandpowersupplyVsisrelativity.关系式:RL(Ω)≤50(VS-12)Relationexpressions:RL(Ω)≤50(VS-12)阻尼时间Damptime:0-32S,可参照调试中的阻尼时间设置进行设定0-32S,refertodebugdamptime故障报警电流Malfunctionalarmcurrent:自诊程序检测出故障,模拟输出高于22.8MA的电流。用户可选择,selfdiagnosticatehasmalfunction,simulateoutputhigh22.8Macurrent,optional3.8MA或22.8MA。(设置可参照调试中的报警电流设置)3.8MAor22.8MA。(refertodebugmalfunctionalarmcurrent)震动影响量Shakeinfluencecapacity:在任意轴向上,频率为200HZ,影响误差为±0.25%Atarbitrarybackconnection,frequentlyis200HZ,erroris±0.25%安装位置影响量Fixplaceinfluencecapacity:安装不同位置时,可产生零点偏差,可通过PV清零进行校准,对量程无影响。Whenfixplaceisdifferent,itwillbehaszeroerror,adjustzerohasnotinfluencefortherange结构特性Configurationspecialty膜片材料Diaphragmmaterial:SUS316L或哈氏合金C、蒙乃尔合金、钽材等可选SUS316LorHastelloyC、Monel、TantalumO型圈Oring:氟橡胶(介质接触处)Fluorinrubber灌充液Filled:硅油Silicon电气壳体Case:低铜铝合金表面喷塑处理aluminiumsurface保护等级Protection:IP65过程接口Connection:NPT1/4内螺纹双端面压室NPT1/4FNPT1/2内螺纹椭圆法兰(可选项)NPT1/2Fellipticalflange(optional)M20X1.5丁字形接头及Φ14焊接管(可选项)M20X1.5T-shapedsocketandΦ14jointingtube(optional)电气接口interface:M20X1.5内螺纹M20X1.5F指示表Displaygauge:5位LCD数字显示(数显表)5digitLCDdigitaldisplay防爆标志Explosionproofsymbol:EXiaIICT5(本安型)(intrinsicalsafetytype)EXiaIICT5重量Weight:≈3.5KG(变送器本体部分,不包括选件)≈3.5KG(transducer,notincludeotherparts)3351系列变送器品种分类及量程代码表3351transducersortandrangecode序号名称及代码量程代码测量范围静压(MPa)精度等级1微差压变送器LowpressuretransducerBLD3351DR2E0-0.1~1KPa10.25、0.5、1.02差压变送器DifferentialpressuretransducerBLD3351DP3E0-1~6KPa40.1、0.2、0.53BLD3351DP4E0-6~40KPa104BLD3351DP5E0-40~250KPa5BLD3351DP6E0-0.16~1MPa6BLD3351DP7E0-0.4~2.5MPa7BLD3351DP8E0-1.6~10MPa8高静压差压变送器HighstaticpressuretransducerBLD3351HP4E0-6~40KPa100.2、0.5149BLD3351HP5E0-40~250KPa101410压力变送器TransducerBLD3351GP3E0-1~6KPa0.2、0.511BLD3351GP4E0-6~40KPa12BLD3351GP5E0-40~250KPa13BLD3351GP6E0-0.16~1MPa14BLD3351GP7E0-0.4~2.5MPa15BLD3351GP8E0-1.6~10MPa16BLD3351GP9E0-4~25MPa17BLD3351GP0E0-6~40MPa18绝对压力变送器AbsolutepressuretransducerBLD3351AP4E0-6~40KPa0.2、0.519BLD3351AP5E0-40~250KPa20BLD3351AP6E0-0.16~1MPa21BLD3351AP7E0-0.4~2.5MPa22BLD3351AP8E0-1.6~10MPa23法兰式液位变送器FlangefluidtransducerBLD3351LT4E0-6~40KPa2.50.250.524BLD3351LT5E0-40~250KPa25BLD3351LT6E0-0.16~1MPa26远传压力变送器RemotetransmissiontransducerBLD3351GP4E0-6~40KPa0.25、0.527BLD3351GP5E0-40~250KPa28BLD3351GP6E0-0.16~1MPa29BLD3351GP7E0-0.4~2.5MPa30BLD3351GP8E0-1.6~10MPa31远传差压变送器remotetransmissiondifferentialtransducerBLD3351DP3E0-1~6KPa2.5)
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