ZR中國SF6氣體密度繼電器及SF6氣體密度控制器
帶變送器遠傳輸出
SF6 密度控制器/ 變送器YXMS
SF6 Density Controller / Transmitter
型號標示 Model Indication:
YXMS-100
YXMS-100 型數字密度控制器的電器工作原理見示意框圖。
Here is YXMS-100 s electrical principle scheme.
一、用途Applications
YXMS-100 型SF6 氣體密度控制器/ 變送器主要應用于高壓電器設備（如高壓斷路器、互感器、GIS 等）設備上，儀表通過輸出開關信號，4～20mA 標準電流信號（或直接給出RS485標準接口）對高壓電器設備內SF6氣體的密度即可實現現場監(jiān)測，又可實現遠程控制。
YXMS-100 SF6 density controllers / transmitters are mainly used in high voltage electrical equipment (such as high voltage breakers, mutual inductors, GIS etc.) The instrument outputs switch signal, 4~20mA standard current signal(or directly to RS485 standard ports) to remoby control SF6 gas density.
二、工作原理Working Principle
YXMS-100 型密度控制器/ 變送器是我公司開發(fā)生產的新型SF6氣體密度測量控制產品，它采用了一種新型的機械電子相結合的設計方案，即將傳統(tǒng)機械SF6 氣體密度控制和電子技術融匯在一起。這一設計充分考慮了在使用現場的惡劣環(huán)境，如高低溫、強電磁干擾及強震動沖擊對儀表的影響，從而極大的提高了儀表的可靠性。儀表在設計上又考慮了在接入計算機測量系統(tǒng)時所必須的數字接口，以適應現代測量的需要。
Integrating mechanical and electrical means ? a combination of conventional SF6 density controller and electrical technology, YXMS-100 density controller / transmitter is a new SF6 gas density measuring and control instrument developed by our company. This new design eliminates the concern about harsh working environment
like extreme temperature, high EMI and vibration, which may influence the instrument, therefore increases reliability greatly. Digital ports to computer measuring systems are provided to meet the requirement of modern measurement technology.
該儀表在原理上采用了雙重測量原理設計，首先將被測氣體分為兩路，一路送入波登管，另一路送入壓力傳感器。送入波登管的被測氣體經過壓力—密度轉換補償器件、傳動器件推動指針在面板上直接顯示壓力值。另外，在被測氣體達到和觸及設定的報警值時，將直接驅動報警繼電器的觸點閉和，以便將該信號輸出。這一設計的優(yōu)點是利用機械式密度控制器傳感器對溫度、震動和電磁干擾的不敏感性和滯后性，有效的提高了在室外惡劣環(huán)境下的可靠性，尤其對超高壓電力開關開啟、閉合時所引起的強電磁脈沖干擾。經實驗，這一設計對強電磁干擾情況下采用電子器件所引起的密度控制器驅動系統(tǒng)誤動作，有很大的提高和改進。另一方面，為了適應數字測量系統(tǒng)的需要，另一路被測氣體送入壓力傳感器。從傳感器輸出的被測壓力信號經放大、模數轉換、數字補償處理、送入數字接口，以現代數字測量技術所具有的標準數字接口和工業(yè)控制信號輸出，形成測量系統(tǒng)。
This instrument features dual measuring elements. The measured gas is split into 2 paths, one to the bourdon tube, the other to the pressure transmitter. The gas pressure is shown on the dial thru the bourdon tube, pressure-density conversion compensator and mechanism, and it directly closes the contact of alarm relay when
the gas reaches the set point. The advantages of the mechanical element are insusceptibility and hysterisis to temperature, vibration and EMI especially when superhigh voltage switches act, and these efficiently improve perbance in outdoor harsh environment. Practices have proved this design prevents system’s faulty function caused by EMI. On the other hand, to match digital measuring system, the pressure transmitter sends a signal out via magnifier， A/D convertor, digital compensator and standard digital ports of modern digital measurement technology, to build a measuring system.
新型的SF6密度控制器/變送器充分考慮了現場的需求以及抗強電磁干擾的特性，另外使用電子技術、微控制器、通訊等先進技術，即保留了機械式壓力控制器穩(wěn)定可靠的特點，又使得新型儀表具備了不可比擬的優(yōu)越性。
The new SF6 density controller / transmitter takes care of onsite needs and high EMI, with electrical, micro-control, communication technologies, plus stable perbance of the mechanical element, it gives the new instrument unmatchable advantage.
YXMS-100 型密度控制器整機采用圓形結構，選用直徑φ 100mm × 127mm 外殼，具有測控準確、抗干擾性能強等優(yōu)點。整機體積小、功能齊全、工作可靠、使用方便靈活。
YXMS-100 density controller is in round enclosure φ100mm x 127mm, features accurate measurement and control, compact size, multi-function, reliability and easy use.
被測量的SF6氣體，首先由定制篩選的進口高精度壓力傳感器測量出壓力信號。這一信號經過內部精確溫度補償，克服了由環(huán)境溫度產生的偏差。然后經補償的傳感器輸出信號送入Ａ／Ｄ轉換部分，Ａ／Ｄ轉換電路對傳感器的輸出信號進行不小于0.1%的高精度模數轉換。經過轉換的數字壓力測量信號，再次被送入下一級即微處理器部分。微處理器對被測量的信號分別進行更精細的溫度、線性補償，并進行壓力密度的轉換計算。轉換后的密度數字信號最后送入輸出部分，輸出部分為模擬輸出和數字輸出兩種，模擬輸出部分采用了數模轉換原理，輸出４－２０m A標準工業(yè)信號。數字輸出部分則直接給出ＲＳ４８５標準接口。
The customized & selected high accuracy pressure transmitter that we import overseas produces a pressure signal of SF6 gas. This signal is temperature compensated and free of temperature deflection. Then the compensated signal is sent to A/D unit for A/D conversion with accuracy better than 1%. After this conversion, the digital signal is sent to microprocessor for finer temperature and linearity
compensations, and pressure/density conversion. Finally the digital density signal goes to output unit, which consists of analog output and digital output. The analog output is standard industrial 4~20mA signal based on D/A conversion, the digital output is RS485 port.
整機的電源采用了傳統(tǒng)的標準兩線制供電方式，由外接的直流１２－２４Ｖ電源模塊供電。
The instrument is powered by conventional 2-wire type of external 12~24VDC.
三、技術指標Technical Specifications
量程范圍：- 0.1～ 0.9MPa -0.1～ 0.6MPa
額定壓力：0.3 - 0.6MPa 報警壓力Ps1：用戶要求 閉鎖壓力Ps2：用戶要求
Pressure Range:-0.1~0.9MPa -0.1～ 0.6MPa
Nominal Pressure: 0.3~0.6 MPa Alarm Pressure(Ps1): on request
Lock Pressure(Ps2): on request
精 確 度： 指示精度： ±1.5% 信號精度： ± 1.0%
Accuracy: Indication: +/- 1.5% Signal: +/- 1.0%
供電電源： DC12～24V
Power: DC 12~24V
信號輸出： 0 ～ 0.9MPa( 兩線制4～20mA)
Signal Output: 0~0.9 MPa (2-wire 4~20mA)
數字輸出： RS485
Digital Output: RS485
使用環(huán)境溫度：-30℃ ～ +60℃
Ambient Temperature: -30~60 deg℃
相對濕度： ≤95%
Relative Humidity: ≤ 95%
氣 壓： （86 -- 106）kPa
Atmosphere: (86 -- 106) kPa
長期穩(wěn)定性： ≤ ± 1% FS / 年
Long-term Stability: ≤ +/- 1% FS/year
使用介質： SF6氣體
Pressure Media: SF6 gas
參數設置： 通過專用軟件設置
Parameter Setup: Special setup software
允許過載：小于等于量程的1.2 倍（長期過載會降低傳感器使用壽命）
Permissible Overload: Max 120% of pressure range (Long time overload may reduce life of the instrument)
震動沖擊： 50g
Shock: 50g
重 量： 1000g
Weight: 1000g
連 接： M20X1.5（或用戶要求）
Connection: M20 x 1.5 or on request
四、電器接口Electrical Connection
本產品采用防水四芯航空插頭。接線方式如下：
4-pole aeronautic socket, wiring as below:
五、數字接口Digital Port
YXMS-100 型密度控制器配備RS485 數字接口，通過數字接口可以實現遠程數據讀取，遠程控制等功能。
YXMS-100 is equipped with RS485 digital port, remote calibration and data access are realized via this digital port.
接口協(xié)議如下Port protocols as below:
1． 溫度讀取Temperature Reading
返回值為Returned Value 
數據2 為8 位有符號溫度值Datum 2 is 8 bit temperature valve with symbol
2． 壓力讀取Pressure Reading 
返回值為Returned Value 
數據2 － 5 四個字節(jié)位32 位浮點型數據，存儲方式先低后高
Datum 2-5 are 32 bit floating point data, storage priority low to high
3． 密度讀取Density Reading 
返回值為Returned Value 
數據2 － 5 四個字節(jié)位32 位浮點型數據，存儲方式先低后高
Datum 2-5 are 32 bit floating point data, storage priority low to high
4． 地址設定Address Setup 
返回值為Returned Value
數據2 為要寫入的8 位地址Datum 2 is 8 bit address to be entered.
5． 地址讀取Address Reading
返回值為Returned Value 
數據2 為從機地址Datum 2 is slave address.
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