壓力變送器是一種將壓力轉換成氣動信號或電動信號進行控制和遠傳的設備。 它能將測壓元件傳感器感受到的氣體、液體等物理壓力參數轉變成標準的電信號（如4~20mADC等），以供給指示報警儀、記錄儀、調節器等二次儀表進行測量、指示和過程調節。用于各種工業自控環境，涉及水利水電、鐵路交通、智能建筑、生產自控、航空航天、軍工、石化、油井、電力、船舶、機床、管道等眾多行業。
Pressure transmitter is a kind of equipment that converts pressure into pneumatic signal or electric signal for control and remote transmission. It can transform the physical pressure parameters such as gas and liquid sensed by the pressure sensor into standard electrical signals (such as 4 ~ 20mADC, etc.), and supply the secondary instruments such as indicator alarm, recorder and regulator for measurement, indication and process adjustment. It is used in various industrial automatic control environments, including water conservancy and hydropower, railway transportation, intelligent building, production automatic control, aerospace, military industry, petrochemical, oil well, power, ship, machine tool, pipeline and many other industries.

壓力變送器有電動式和氣動式兩大類。電動式的統一輸出信號為0～10mA、4～20mA或1～5V等直流電信號。氣動式的統一輸出信號為20～100Pa的氣體壓力。
There are two types of pressure transmitter: electric type and pneumatic type. The unified electric output signal is 0-10mA, 4-20mA or 1-5V DC electrical signal. The unified output signal of pneumatic type is the gas pressure of 20-100pa.
3151智能型液位變送器直裝型結構都有什么?/主要性能
What is the direct mount structure of 3151 intelligent liquid level transmitter? / main performance
1、使用被測介質廣泛，可測油、水及與316不銹鋼和304不銹鋼兼容的糊狀物，具有一定的防腐能力；
1. It can measure oil, water and paste compatible with 316 stainless steel and 304 stainless steel. It has a certain anti-corrosion ability;
2、高準確度、高穩定性、選用進口原裝傳感器，線性好，溫度穩定性高；
2. High accuracy, high stability, imported original sensor, good linearity, high temperature stability;
3、體積小、重量輕、安裝、調試、使用方便；

3. Small size, light weight, easy to install, debug and use;
4、不銹鋼全封閉外殼，防水好；
4. Stainless steel fully enclosed shell, waterproof;
5、壓力傳感器直接感測被測液位壓力，不受介質起泡、沉積的影響。
5. The pressure sensor directly senses the measured liquid level pressure, which is not affected by medium foaming and deposition.
3151智能型液位變送器直裝型結構都有什么?/壓力傳感器使用過程應注意考慮下列情況：
What is the direct mount structure of 3151 intelligent liquid level transmitter? / pay attention to the following situations during the use of pressure sensor:
1、防止變送器與腐蝕性或過熱的介質接觸；
1. Prevent the transmitter from contacting with corrosive or overheated media;
2、防止渣滓在導管內沉積；

2. Prevent dross from depositing in the conduit;
3、測量液體壓力時，取壓口應開在流程管道側面，以避免沉淀積渣；
3. When measuring the liquid pressure, the pressure tap shall be opened at the side of the process pipe to avoid the deposition of slag;
4、測量氣體壓力時，取壓口應開在流程管道頂端，并且變送器也應安裝在流程管道上部，以便積累的液體容易注入流程管道中；
4. When measuring the gas pressure, the pressure tap shall be opened at the top of the process pipe, and the transmitter shall also be installed at the top of the process pipe, so that the accumulated liquid can be easily injected into the process pipe;
5、導壓管應安裝在溫度波動小的地方；
5. The pressure pipe shall be installed in the place with small temperature fluctuation;
6、測量蒸汽或其它高溫介質時，需接加緩沖管（盤管）等冷凝器，不應使變送器的工作溫度超過極限；
6. When measuring steam or other high-temperature medium, it is necessary to connect a condenser such as a buffer pipe (coil) to prevent the working temperature of the transmitter from exceeding the limit;
7、冬季發生冰凍時，安裝在室外的變送器必需采取防凍措施，避免引壓口內的液體因結冰體積膨脹，導至傳感器損壞；
7. When freezing occurs in winter, the transmitter installed outdoors must take anti freezing measures to prevent the liquid in the pressure tap from expanding due to the frozen volume, leading to the sensor damage;
8、測量液體壓力時，變送器的安裝位置應避免液體的沖擊（水錘現象），以免傳感器過壓損壞；
8. When measuring the liquid pressure, the installation position of the transmitter should avoid the impact of liquid (water hammer phenomenon), so as to avoid the sensor overpressure damage;
9、接線時，將電纜穿過防水接頭（附件）或繞性管并擰緊密封螺帽，以防雨水等通過電纜滲漏進變送器殼體內。
9. When wiring, put the cable through the waterproof connector (accessory) or winding pipe and tighten the sealing nut to prevent rainwater from leaking into the transmitter housing through the cable.

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關鍵詞推薦

壓力變送器廠家 液位變送器廠家