YS1 陶瓷電容壓力變送器YS1（YS-1）
YS1 Ceramic Capacitance Pressure Transmitter
概述
YS1（YS-1）型陶瓷電容壓力變送器采用具有*水平的陶瓷電容壓力傳感器，配合高精度電子元件，經嚴格的工藝過程裝配而成。它采用無中介液的壓力測量技術，充分發(fā)揮了傳感器的技術優(yōu)勢，使變送器具有優(yōu)異的性能，同時抗過載和抗沖擊能力強、溫度漂移小、穩(wěn)定性高、具有很高的測量精度。
YS1（YS-1）型具有多種量程、多種連接形式及多種接液材質。可廣泛用于石油、化工、電力、冶金、制藥、食品等許多工業(yè)領域，可適應各種工業(yè)場合及介質，是傳統(tǒng)壓力表及傳統(tǒng)壓力變送器的理想升級換代產品，是工業(yè)自動化領域理想的壓力測量儀表。廣泛應用于液體、氣體、蒸汽壓力測量，液體液位測量。
General Remark
YS1（YS-1） Ceramic Capacitance Pressure Transmitter adopts internationally advanced ceramic capacitance pressure sensor, fitted with high accuracy electronic
elements, through strict process assembly. It adopts no medium liquid measuring technology, fully perform transmitter s technical advantage, make transmitter s more excellent function, meanwhile stronger anti overload and anti impact ability, small thermo drift, high stability, high measuring accuracy.
YS1（YS-1） Ceramic Capacitance Pressure Transmitter has many range, connection types and wetted materials. Widely used in petroleum, chemical, power,metallurgy, pharmaceutical, food industries etc, suitable for various industrial environments, is ideal upgrade replacement of traditional pressure gauge and traditional pressure transmitter, is ideal pressure measuring instrument in industrial automatization. Ceramic Capacitance Pressure Transmitter is broadly used in liquid, gas, steam pressure measurement, liquid level measurement.
特點
● 精度高，穩(wěn)定性好。
● 二線制工作方式，4～20mA 信號輸出。
● 敏感部件及線路板采用全固體結構，堅固抗振。
● 抗*力強，溫度穩(wěn)定性好，防爆殼體結構，可全天候使用。
● 具有*良的防腐性能，保證的使用可靠性。
● 結構輕巧，簡單合理，無須支架，無須水平安裝，可直接任意位置安裝。
Characteristic
● high accuracy, good stability
● 2 line working type, 4~20mA signal output
● sensitive component and circuit board are in solid construction, rigid vibration-proof
● excellent interference-proof, good thermal drift, explosion-proof enclosure structure, weather-proof
● most outstanding corrosion-proof, ensure best utility reliability
● light construction, simple reasonable, no bracket required, no horizontal mounting required, available mountingat any position.
工作原理
變送器由傳感器與電子元件線路組成，被測介質的壓力直接作用于傳感器的陶瓷膜片上，使膜片產生與介質壓力成正比的微小位移，正常工作狀態(tài)下，膜片zui大位移不大于0.025mm，電子線路檢測這一位移量后，即把這一位移量轉換成對應這一壓力的標準工業(yè)測量信號即（4～20mA）。超壓時膜片直接貼到堅固的陶瓷基體上，由于膜片與基體的間隙只有0.1mm，過載時膜片的zui大位移只能是0.1mm，（此時測量膜片貼到陶瓷支架上，避免損壞）所以從結構上保證了膜片不會產生過大變形。由于膜片采用高性能的工業(yè)陶瓷，因而使傳感器具有很強的抗沖擊及抗過載能力。從襯底電極①和膜片電極②之間可以檢測到與壓力成比例的電容變化量，電容的變化值經激光微調電路放大輸出高達0.5-4.5V 的直流電壓，計算機可直接采樣。
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. From between lining electrode① and diaphragm electrode②capacitance variant in proportion to pressure can be detected, capacitance variant value is amplified by laser micro adjustment circuit to output direct voltage as high as 0.5-4.5V, computer can sample it directly.
主要技術指標
技術指標
使用對象 液體、氣體或蒸汽等
測量范圍 表壓：0～1KPa～7MPa; 負壓：-100KPa～7MPa
輸 出 4～20mA.DC
電 源 13～30V.DC
負載特性 4～20 mA.DC 二線制負載R ≤ 50（V-13）
溫度范圍 環(huán)境溫度：-20～+70℃;存儲溫度：-40～+85℃
標準介質 溫度：-30～+85℃（短時可達130℃）
外殼防護 IP65
防爆標志 本安型Exia Ⅱ CT5 ;
防爆合格證編號：CE042114
Main Technical lndex
Technical Index
Utility Object: Liquid, gas or steam etc
Measuring range: Gauge pressure: 0~1KPa~7MPa;Minus pressure; -100KPa; 7Mpa
Output: 4~20mA.DC
Power Supply: 13~30V.DC
Load characteristic: 4~20 mA.DC 2 line load ≤ 50（V-13）（see figure-2）
Temperature limit: Ambient temperature -20~+70℃;
storage temperature -40~+85℃
Standard medium temperature: -30~+85℃short time up to 130℃
Enclosure protection: IP65
Explosion-proof mark: Intrinsically safetytypeExiaIICT5 ;
explosion-proof certificate of conformity no.: CE042114
性能指標
綜合精度 提供標準±0.25%BFSL/年，zui高精度± 0.1% BFSL/ 年
穩(wěn) 定 性 優(yōu)于± 0.1% BFSL/ 年
溫度影響 在-20～+70℃范圍內，變化量小于±0.18%/10℃
振動影響 在任何方向上振動頻率為20-200Hz時，變化量小于± 0.02% BFSL/ 年
沖擊影響 任何方向100G沖擊11ms 后，變化量小于± 0.02% BFSL
負載影響 只要輸入變送器的端子電壓高于13V，就無負載影響。
位置影響 無
結構指標
結構材料 膜片材質：氧化鋁陶瓷 外殼材質：鋁合金石鑄 接觸介質材質：SUS304
“ O”型圈氟橡膠 （或聚四氟乙烯）
過程連接 標準提供M20 × 1.5 陽螺紋
電氣連接 可根據(jù)需要從任何一個出口引出，建議使用φ 10 工業(yè)電纜作為引線，以便密封。引出接頭可選用通用電纜接頭PG16或M20×1.5，不引線一端用端蓋封住。
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 frequency20-200Hz，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 than13V.
position effect: None
Constructional index
constructional material: Diaphragm material：aluminium oxide ceramic
Enclosure material：aluminium alloy stone cast
Wetted material：SUS304
“ O”type ring fluoroelastomer （or PTFE）
process connection: Supply standard M20×1.5 male thread
electric connection:On request lead from any exit, suggest φ10 industrial cable as lead, so that it is sealed. Leadout socketcould be general cable socket PG16 or M20×1.5，use end cap to seal no lead end.
結構及安裝方式
YS1 壓力變送器外型尺寸圖
figure-3 YS1 Pressure Transmitter External Dimension Drawing
1. 直接安裝在測量點上（任意角度）。
2. 盡量安裝在溫度梯度與溫度波動小的測壓點上，同時避免強振動和沖擊。
3. 室外安裝時，盡可能放置于保護盒內，避免陽光直射和雨淋，以保持變送器性能穩(wěn)定和延長使用壽命。
4. 測量蒸汽或其它高溫介質時，注意不要使變送器的工作溫度超限。必要時請安裝散熱器或其它冷卻裝置連接。
5. 安裝時應在變送器和介質之間加裝壓力截止閥，以便檢修和防止取壓口堵塞而影響測量精度。在壓力波動范圍大的場合還應加裝阻尼器或壓力緩沖裝置。
注：不得隨意更換或改動可能影響防爆性能的元器件或結構。
Construction and mounting options
1. directly mount on measuring point（any angle）
2. suggest mount on measuring point with lower temperature gradient and temperature fluctuation, meanwhile avoid 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.
系統(tǒng)連接及調試
變送器在測量系統(tǒng)中的連接見圖4。建議電源電壓Vs 選用24V.DC。
二次儀表中采樣電阻（負載電阻）RL 的阻值選用250 Ω。如果Us 和RL 選用別的數(shù)值，那么RL = VS-12/0.02值不能超過由公式計算得到的數(shù)值。
電源通過信號線接到變送器， 變送器頂部兩側面的連接孔用電纜密封或信號線裝配，信
號電纜通過緊固螺母鎖緊，不使用的連接口必須密封。
A：測量系統(tǒng)接線圖
在系統(tǒng)回路中必須采用屏蔽信號電纜，并可靠接地。
S y s t e m -connection and adjustment
Connection of pressure transmitter in measuring system refers to figure 4. Suggest
power supply Vs uses 24V.DC。
Sampling resistance in secondary instrument（load resistance）RL uses 250 Ω。If
resistance deviates for Us and RL, RL value shall not exceed the value from formula
RL= VS-12/0.02。
Power 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 sea
A：measuring system wiring scheme
Shielded signal cable must be used in system loop, and must be grounded firmly.
B：本安型壓力變送器
YS1 本安型壓力變送器采用本質安全電路，適用于爆炸危險區(qū)域，防爆等級ExiaIICT5（防爆合格證編號：CE042114），技術性能指標與普通型壓力變送器相同。在系統(tǒng)回路中必須采用屏蔽信號電纜，并可靠接地。
B：intrinsically safety type pressure transmitter
YS1 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.
變送器出廠前已根據(jù)用戶需求，量程、精度均已調到精度范圍以內，一般不需校驗。但以下情況需重新校驗：
A. 運輸途中出現(xiàn)跌落、強烈震顛和碰撞；
B. 存放期超過一年；
C. 長時間運行后，出現(xiàn)大于精度范圍內的誤差；
D. 使用單位的例行檢驗；
before delivery transmitter has been set range, accuracy within accuracy range as per customer s request,normally doesn t need calibration but as a exception if following situations occur：
A. falling down, strong shock and vibration in transit；
B. over 1 year storage；
C. long time operation, error occurs greater than accuracy range;
D. user s routine inspection；
如何選擇壓力變送器（具體訂貨時參考）
（1） 確定測量介質
根據(jù)腐蝕程度的大小選擇相應的變送器，一般來說非強酸、強堿均可使用以不銹鋼為隔離單元的變送器，否則只能選擇專為防腐蝕設計的鈦合金等特制變送器。其次還需看測量介質是否粘稠，干凈程度，如果粘稠介質就需要選擇硬性隔離單元的變送器。
（2） 確定測量范圍和測量方式
一般選擇測量范圍時要考慮 實際測量范圍，過壓測量范圍，選擇量程以zui大測量范圍為準，同時考慮過壓測量范圍的大小。 另外需要選擇正確的測量方式，如果測量差壓必須選擇差壓變送器。
（3） 確定精度范圍，補償溫度范圍，使用溫度范圍
根據(jù)需要測量的zui低精度，一般選擇略高于所要求zui低精度的產品。 選擇時還需考慮*穩(wěn)定性指標。 所謂補償溫度范圍即正常工作時測量介質的溫度范圍，使用溫度范圍即使用過程中可能出現(xiàn)的zui大溫度范圍，一般選擇時略大于測量介質的溫度范圍。
（4） 確定供電電源、輸出信號、壓力螺紋接口、電氣接口、機械尺寸等
（5） 確定是否需要防爆，需要防電磁干擾，以及外殼防水的環(huán)境指標
how to choose pressure transmitter（refer to when ordering）
（1） decide measuring medium
Choose corresponding transmitter according to corrosivity, normally transmitter with stainless steel isolation cell is enough for non strong acid strong alkali, otherwise special chemical seal product made in titanium alloy specially designed for corrosion-proof must be used. Secondly, need to know viscosity of measuring medium, cleanliness, in case of very viscous transmitter of rigid isolation cell needs to be used.
（2） decide measuring range and method
normally when choosing measuring range, need to consider actual measuring range, overpressure measuring range, choosing range should refer to the biggest measuring range, meanwhile consider volume of overpressure range. In addition, need to choose correct measuring method, if measuring pressure difference, need to use differential pressure transmitter
（3） decide accuracy range, compensation temperature range, using temperature range.
according to minimum accuracy, normally choose a bit higher accuracy meanwhile when choosing, need to consider long term stability compensation temperature range is that measuring medium s temperature range when working normally, using temperature range is the biggest temperature range when using, normally choose a little bigger temperature range than required.
（4） decide pressure connection, electric connection, mechanical dimensions etc
（5） decide if need explosion-proof, electro magnetic interference-proof, and ambient factor of water-proof of enclosure
產品詳細資料請點擊：S.YS1 陶瓷電容壓力變送.pdf
壓力變送器、防爆壓力變送器YS-1、YS1
