西安華恒變送器制造商已經開發出傳感器和智能電路板這兩項核心技術。 不僅掌握了所有產品的所有核心組件技術，而且工業自動變送器制造商的精度也在不斷提高，從0.2提高到0.1。 通過擴展精通的核心技術，它還可以改變其他測量流量和溫度的產品
Xi'an Huaheng transmitter manufacturer has developed two core technologies, sensor and intelligent circuit board. Not only master all core component technologies of all products, but also the accuracy of industrial automatic transmitter manufacturers is constantly improving, from 0.2 to 0.1. It can also change other products that measure flow and temperature by expanding the core technology of mastery
3151壓力/差壓液位儀表百科:壓力變送器和液位變送器的區分/解下壓力變送器、差壓變送器原理
3151 Encyclopedia of pressure / differential pressure level instruments: distinction between pressure transmitter and level transmitter / principle of pressure transmitter and differential pressure transmitter
3151壓力/差壓液位儀表百科:壓力變送器和液位變送器的區分/、壓力變送器原理
3151 Encyclopedia of pressure / differential pressure level instruments: distinction between pressure transmitter and level transmitter / principle of pressure transmitter
壓力變送器感受壓力的電器元件一般為電阻應變片，電阻應變片是一種將被測件上的壓力轉換成為一種電信號的敏感器件。電阻應變片應用最多的是金屬電阻應變片和半導體應變片兩種。金屬電阻應變片又有絲狀應變片和金屬箔狀應變片兩種。通常是將應變片通過特殊的黏合劑緊密地粘合在產生力學應變基體上，當基體受力發生應力變化時，電阻應變片也一起產生形變，使應變片的阻值發生改變，從而使加在電阻上的電壓發生變化。
The electrical components of pressure transmitter to sense pressure are generally resistance strain gauge, which is a kind of sensitive device that converts the pressure on the tested part into an electrical signal. The most widely used resistance strain gauge are metal resistance strain gauge and semiconductor strain gauge. There are two kinds of metal resistance strain gauge: wire strain gauge and foil strain gauge. Generally, the strain gauge is tightly bonded to the mechanical strain matrix by a special adhesive. When the stress of the matrix changes, the resistance strain gauge will also deform together, so that the resistance of the strain gauge changes, so that the voltage applied to the resistance changes.
3151壓力/差壓液位儀表百科:壓力變送器和液位變送器的區分/、差壓變送器
3151 Encyclopedia of pressure / differential pressure level instruments: distinction between pressure transmitter and level transmitter / differential pressure transmitter
差壓變送器所測量的結果是壓強差，即△P=ρg△h。而由于油罐往往是圓柱形，其截面圓的面積S是不變的，那么，重力G=△P·S=ρg△h·S，S不變，G與△P成反比關系。即只要準確地檢測出△P值，與液位高度h成反比，與高度差△h成正比，在溫度變化時，雖然油品體積膨脹或縮小，實際液位升高或降低，所檢測到的壓力始終是保持不變的。
The result measured by the differential pressure transmitter is the pressure difference, that is, △ P = ρ g △ H. Since the oil tank is usually cylindrical, the area s of its section circle is constant. Then, the gravity g = P · s = ρ g △ h · s, s is constant, and G is inversely proportional to △ P. That is to say, as long as the value of △ P is accurately detected, it is inversely proportional to the height h of the liquid level, and directly proportional to the height difference △ h. When the temperature changes, although the volume of the oil expands or shrinks, the actual liquid level rises or falls, the detected pressure remains unchanged.
投入式液位計安裝與調試
Installation and commissioning of input liquid level meter
1、變送器可垂直、傾斜或水平安裝在罐體、槽內，應注意不讓泥沙埋沒或堵塞膜片;
1. The transmitter can be installed vertically, obliquely or horizontally in the tank body and groove, and attention shall be paid not to allow sediment to bury or block the diaphragm;
2、在介質波動較大的場合，應采取固定措施，如采用也ф12的防波管;
2. In case of large fluctuation of medium, fixed measures shall be taken, such as anti wave tube of ф 12;
3、導氣電纜除作為電源和信號轉換外，主要為引人大氣補償用，安裝時注意不要挾持過緊，折彎過銳;
3. In addition to being used as power supply and signal conversion, the air conducting cable is mainly used for air induction compensation. Pay attention not to hold it too tightly and bend it too sharply during installation;
4、殼體垂直安裝在罐體上方或附近的支架上，應保證防曬透氣，安裝位置應便于接線與調校。
4. The shell is vertically installed on the bracket above or near the tank body, which shall ensure sun protection and ventilation, and the installation position shall be convenient for wiring and adjustment.
5、本產品在出廠時已經校準，其零點是相對于河南地區的大氣壓，滿點是在一個大氣壓下的相對壓力。若需要現場調整可采取以下方法：
5. This product has been calibrated at the time of delivery. Its zero point is relative to the atmospheric pressure in Henan area, and its full point is relative pressure under one atmospheric pressure. If field adjustment is required, the following methods can be adopted:
現場調零------當液位位處于位時，將調零鍵“Z”按一下，輸出電流自動調整到4mA?，F場調滿------當液位處于高位時，將調滿鍵“S”按一下，輸出電流自動調整到20mA。調整好后，應將變送器的端蓋擰緊。
Field zero adjustment ---- when the liquid level is at the position, press the zero adjustment key "Z" once, and the output current will be adjusted to 4mA automatically. Full on site: when the liquid level is at high level, press the full key "s" once, and the output current will be adjusted to 20mA automatically. After adjustment, tighten the end cover of the transmitter.
華恒變送器廠家憑借自身擁有的傳感器和智能電路板核心技術，可以根據客戶要求，低成本對核心技術進行延伸變形，實現個性化產品定制。主要產品有SMART（斯瑪特）系列壓力變送器、多參數變送器、流量器、溫度傳感器和物位（液位變送器廠家，為我國電力、石油、化工、冶金、水泥、礦業等行業提供了高性能價格比的工業自動變送器廠家產品.
With its own core technology of sensor and intelligent circuit board, Huaheng transmitter manufacturer can extend and transform the core technology at low cost according to customer requirements to achieve personalized product customization. The main products are smart (SMART) series pressure transmitter, multi parameter transmitter, flowmeter, temperature sensor and level (liquid level transmitter manufacturer, which provides high performance price ratio industrial automatic transmitter products for China's power, petroleum, chemical, metallurgical, cement, mining and other industries