智能系列电容式差压/ 压力变送器BLD-3351
Intelligent series capacitive differential/pressure transducer
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。
Summarize
BLD-3351 miniaturization series pressure/differential transducer are use capacitive sensor core, and advanced production technics and technology, perform 9001:2000 standard strictly,produce new type pressure /transducer.
BLD-3351 series pressure/ differential transducer has N type(standard simulation type) and S type (standard intelligent type); apheliotropic blue LCD screen overcomes unread ness in night;Intelligent series use local button, can adjust zero or reset range. According to customer request, it can reach range ratio 50:1 and accuracy 0.1%. Use integrative capacitance transducer configuration,has reliability and stability.
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
● range transference large
● Same configuration of this series, can interconnect
● display gauge outfit key-press controls local configuration,needn t manual ware or PC machine.
● PV reset
● with self diagnosis function
● broad visual angle apheliotropic LCD screen
● high accuracy, high stability, high reliability
● HART numeral communication technology
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. 1 mm ,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 ~ 20mA DC 输出信号。(见图1)
Application
BLD3351S intelligent type differential/pressure transducer use for petroleum, chemical industry, steel, electric power, food, paper making, weave, medicine, light industry, environmental etc. control and measure liquid differential pressure, pressure, runoff, apply for corrosive medium, can fit for customer request.
Working principle
Process pressure through tow sides or one side separate diaphragm, filled liquid transmit to center measuring diaphragm of chamber. Center diaphragm is a stretch flexibility element. When it arises pressure on the sides, it will has relevant displacement, the displacement and the differential pressure are direct ratio. maximal displacement is 0. 1 mm . This kind of displacement change into differential capacitance on the capacitance board,electron circuitry transform differential capacitance into two lines 4 ~ 20mA DC output signal(scheme 1)
技术指标Technology index
精度Accuracy: 0.1 级0.2 级
输出信号Output signal: 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Range displacement: 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)
displacement ratio 10:1~50:1
零点迁移Zero displacement: (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:within measuring range: range≥minimum range,move freewill within displacement ratio).
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。set zero,currently show value and 0 value windage is under 50%FS, Pv set zero currently show value0,if windage is over 50,Pv set zero is invalid.
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)Zero passive displacement (refer to debug passive displacement,after zero displacement must be moved ,otherwise the range will be wrong.)
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)Zero fountain
displacement(refer to debug fountain displacement,after zero displacement mustbe moved ,otherwise
the range will be wrong.)
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)Within 12 months,is not over the accuracy(at maximal range )
温度影响Temperature Influence: 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)at maximal range 0.05%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。working temperature:-30~85℃;compensative temperature:-20~70℃;(relative to 25℃;
过载及静压影响over loading and sta-tic pressure influence: 过载能力:200%FS Over loading capacity:200%FS
影响量:最大量程时0.2%FS influence capacity:maximal range 0.2%FS
静压影响:最大量程时0.25%FS static pressure influence:maximal range 0.25%FS
供电电源power supply: 12~45VDC;标准电压:24VDC;电源影响量:〈0.005%/Vpower supply 12~45VDC;standard voltage:24VDC;power supply influence capacity:〈0.005%/V〉
负载特性Load speciality: 负载RL 与供电电压VS 有关系Load Rl and power supply Vs is relativity.
关系式:RL(Ω)≤ 50(VS-12) Relation expressions:RL(Ω)≤ 50(VS-12)
阻尼时间Damp time: 0-32S,可参照调试中的阻尼时间设置进行设定0-32S,refer to debug damp time
故障报警电流Malfunction alarmcurrent: 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,self diagnosticate has malfunction,simulate output high 22.8Macurrent, optional 3.8MA 或22.8MA。(设置可参照调试中的报警电流设置)3.8MA or 22.8MA。(refer to debug malfunction alarm current)
震动影响量Shake influence capacity: 在任意轴向上,频率为200HZ,影响误差为± 0.25% At arbitrary back connection,frequently is 200HZ,error is ± 0.25%
安装位置影响量Fixplaceinfluence capacity: 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。When fix place is different,it will be has zero error, adjust zero has not influence for the range
结构特性Configuration specialty
膜片材料Diaphragm material:SUS316L或哈氏合金C 、蒙乃尔合金、钽材等可选SUS316L or Hastelloy C 、Monel 、Tantalum
O型圈 O ring:氟橡胶(介质接触处)Fluorin rubber
灌充液 Filled:硅油 Silicon
电气壳体 Case: 低铜铝合金表面喷塑处理 aluminium surface
保护等级Protection:IP65
过程接口 Connection:NPT1/4内螺纹双端面压室 NPT1/4F
NPT1/2内螺纹椭圆法兰(可选项)NPT1/2F elliptical flange(optional)
M20X1.5丁字形接头及Φ14焊接管(可选项)M20X1.5 T-shaped socket andΦ14 jointing tube(optional)
电气接口 interface:M20X1.5内螺纹 M20X1.5 F
指示表 Display gauge:5位 LCD数字显示(数显表)5digit LCD digital display
防爆标志 Explosion proof symbol:EXiaIICT5(本安型)(intrinsical safety type) EXiaIICT5
重量 Weight:≈ 3.5KG(变送器本体部分,不包括选件)
≈ 3.5KG(transducer,not include other parts)
3351 系列变送器品种分类及量程代码表3351transducer sort and range code
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
Low pressure transducer
|
BLD3351DR2E
|
0 - 0.1~1KPa
|
1
|
0.25、0.5、1.0
|
2
|
差压变送器
Differential pressure
transducer
|
BLD3351DP3E
|
0 - 1~6KPa
|
4
|
0.1、0.2、0.5
|
3
|
BLD3351DP4E
|
0 - 6~40KPa
|
10
|
||
4
|
BLD3351DP5E
|
0 - 40~250KPa
|
|||
5
|
BLD3351DP6E
|
0 - 0.16~1MPa
|
|||
6
|
BLD3351DP7E
|
0 - 0.4~2.5MPa
|
|||
7
|
BLD3351DP8E
|
0 - 1.6~10MPa
|
|||
8
|
高静压差压变送器
High static pressure
transducer
|
BLD3351HP4E
|
0 - 6~40KPa
|
10
|
0.2、0.5
|
14
|
|||||
9
|
BLD3351HP5E
|
0 - 40~250KPa
|
10
|
||
14
|
|||||
10
|
压力变送器
Transducer
|
BLD3351GP3E
|
0 - 1~6KPa
|
|
0.2、0.5
|
11
|
BLD3351GP4E
|
0 - 6~40KPa
|
|||
12
|
BLD3351GP5E
|
0 - 40~250KPa
|
|||
13
|
BLD3351GP6E
|
0 - 0.16~1MPa
|
|||
14
|
BLD3351GP7E
|
0 - 0.4~2.5MPa
|
|||
15
|
BLD3351GP8E
|
0 - 1.6~10MPa
|
|||
16
|
BLD3351GP9E
|
0 - 4~25MPa
|
|||
17
|
BLD3351GP0E
|
0 - 6~40MPa
|
|||
18
|
绝对压力变送器
Absolute pressure
transducer
|
BLD3351AP4E
|
0 - 6~40KPa
|
|
0.2、0.5
|
19
|
BLD3351AP5E
|
0 - 40~250KPa
|
|||
20
|
BLD3351AP6E
|
0 - 0.16~1MPa
|
|||
21
|
BLD3351AP7E
|
0 - 0.4~2.5MPa
|
|||
22
|
BLD3351AP8E
|
0 - 1.6~10MPa
|
|||
23
|
法兰式液位变送器
Flange fluid
transducer
|
BLD3351LT4E
|
0 - 6~40KPa
|
2.5
|
0.25 0.5
|
24
|
BLD3351LT5E
|
0 - 40~250KPa
|
|||
25
|
BLD3351LT6E
|
0 - 0.16~1MPa
|
|||
26
|
远传压力变送器
Remote transmission
transducer
|
BLD3351GP4E
|
0 - 6~40KPa
|
|
0.25、0.5
|
27
|
BLD3351GP5E
|
0 - 40~250KPa
|
|||
28
|
BLD3351GP6E
|
0 - 0.16~1MPa
|
|||
29
|
BLD3351GP7E
|
0 - 0.4~2.5MPa
|
|||
30
|
BLD3351GP8E
|
0 - 1.6~10MPa
|
|||
31
|
远传差压变送器
remote transmission
differential transducer
|
BLD3351DP3E
|
0 - 1~6KPa
|
2.5
|
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