卫生式流程压力变送器YS1PW
Hygienic Flow Pressure Transmitter
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。
General Remark
This type is derived from YS1, use for process measuring pressure transmitter. ItsCore component capacitance type sensor has superior measuring features, specially suitable for low pressure measurement. Flush mounting capacitance type sensor also has high corrosion-proof ability, withstand most corrosive media. By using ceramic A1203 purity 96% diaphragm, pressure transmitter’s media compatibility is further improved. Pressure connection is in stainless steel. Sensor and pressure connection are sealed using FKM sealing ring. Other sealing material can be made on request, please consult. Moreover there are many process connections for all kinds of flow industries available on request.
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
● capacitance ceramic sensor has no filling liquid, has strong corrosion-proof ability
● diaphragm ceramic Al2O3 purity 96%
● high accuracy, good stability, small thermal drift
● excellent long term stability
● optional explosion-proof Ex：(only suitable for 4⋯20mA/2line type)
● high accuracy, good stability
● sensitive component and circuit board are in solid construction, rigid vibration-proof
● strong interference-proof, good thermal drift, explosionproof enclosure structure, 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。
Working Principle
Transmitter is composed of sensor and electronic element circuit, pressure of measured medium directly applies on sensor’s ceramic diaphragm, force diaphragm to displace tinily in proportion to pressure of medium, under normal working condition, diaphragm displace no more than 0.025mm, electronic circuit detects this displacement, and convert it into standard industrial measuring signal i.e. (4～20mA) corresponding to this pressure. When overpressure, diaphragm directly stick to solid ceramic base body, as there is only 0.1mm gap between diaphragm and base body, when overpressure, the maximum diaphragm displacement could be no more than 0.1mm, (at that time, measuring diaphragm sticks to ceramic bracket, avoid damage) so structurally prevent diaphragm from excessive deformation. Because diaphragm adopts high functional industrial ceramic, sensor is significantly shock-proof and overload-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...40 mbar 至 0...20 bar
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ia Ⅱ CT5 应外配安全栅
Main Techical Index
Technical Index
Utility Object: Liquid, gas or steam etc
Measuring range: 0...40 mbar through 0...20 bar
Output: 4～20mA.DC
Power Supply: 13～30V.DC
Load characteristic: 4～20mA.DC2 line load R ≤ 50(V-13) （see figure-2）
Temperature limit: Ambient temperature：-20～+70℃ ; storage temperature：-20～+80℃
Standard medium temperature：-25～+85℃（short time up to 130℃）
Enclosure protection: Better than IP65
Explosion-proof type: Intrinsically safety type ia Ⅱ CT5 should have extra safety barrier
Transmitter s load characteristic diagram
负载电阻：load resistance
电源电压：power supply voltage
工 作 区：working area
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
Functional index
General accuracy: Supply standard ± 0.25%BFSL/year，maximum accuracy ± 0.1% BFSL/year
stability: Better than±0.1% BFSL/year thermal effect: within-20～+70℃，variation below±0.18%/10℃
vibration effect: In any direction, vibration frequency 20-200Hz，variation below ± 0.02% BFSL/year
impact effect: In any direction 100G impact after 11ms, variation below ± 0.02% BFSL
load effect: No load effect as long as voltage input to transmitter s terminal greater than 13V.
position effect: 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。
Structural Index
constructional material: enclosure：low copper cast aluminium diaphragm：aluminium oxide ceramic purity96%
Wetted part material：SUS304(or optional SUS316 and SUS316L)
“ O”type ring：buna N , PTFE OR fluoroelastomer
process connection: Refer to type choosing construction dimensional drawing
electric connection: On request lead from any exit, suggest φ10 industrial cable as lead, so that it is sealed.
Leadout socket could be general cable socket PG16 or M20 × 1.5，use end cap to seal no lead end.
结构及安装方式
图 卫生流程压力变送器的结构示意图
figure-3 Hygienic Flow Pressure Transmitter Construction Scheme
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。
Construction and mounting method
1. directly mount on measuring point（any angle）
2. suggest mount on measuring point with lower temperature gradient and temperature fluctuation, meanwhileavoid vibration and impact.
3. in case of outdoor mounting, preferred mounting in protection case, avoid direct exposure to sunlight and rainfall, to maintain transmitter’s functional stability and longer service life.
4. when measuring steam or other high temperature media, make sure transmitter’s working temperature limit is observed. Fit cooler or other cooling device if necessary.
5. when mounting, shut valve should be used between transmitter and medium, for easy maintenance and to prevent pressure taking port from blocking that influences measuring accuracy. Damper or pressure buffer should be used where big pressure fluctuation exists.
Note：random replacing or altering elements or construction that may impair explosion-proof function is prohibited.
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250 Ω。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。
System connection and adjustment
Connection of pressure transmitter in measuring system refers to figure 3. Suggest power supply Us uses24V.DC。
Sampling resistance in secondary instrument（load resistance）RL uses 250Ω。If resistance deviates for Us and RL, RL value shall not exceed the value from formula RL = VS-12/ 0.02Power supply is connected to transmitter with signal cable, connections holes at both sides of top of transmitter is sealed with cable or assembled with signal cable, signal cable is fastened by lock nuts, idle connection hole must be sealed.
A：measuring system wiring scheme
Shielded signal cable must be used in system loop, and must be grounded firmly. (12-30V direct current power supply)
B：intrinsically safety type pressure transmitter
YS-1-B intrinsically safety type pressure transmitter adopts intrinsically safety circuit, suitable for explosive hazardous zone, explosion-proof class ExiaIICT5(explosion-proof certificate no.：CE042114)，technical function index is same as standard pressure transmitter. Shielded signal cable must be used in system loop, and must be grounded firmly.
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