Classification by use environment
General industrial pressure transmitter
Features: It can withstand a certain degree of temperature changes, humidity, dust and mechanical vibration, with a protection level between IP65-IP67, and an operating temperature range of -20℃-80℃.
Application scenarios: It is suitable for pressure measurement in most industrial plants, such as compressed air system pressure monitoring in factories and ordinary pipeline fluid pressure measurement.
Explosion-proof pressure transmitter
Features: It has explosion-proof function, and through special explosion-proof structure design and sealing measures, it prevents internal electrical sparks or high temperatures from causing external explosions. There are multiple explosion-proof levels.
Application scenarios: It is commonly used for pressure monitoring in hazardous places such as petrochemicals, natural gas mining, and coal mines.
Waterproof pressure transmitter
Features: It has good waterproof performance, and the protection level is generally IP68 and above. Application scenarios: It is commonly used for pressure measurement of underwater equipment, such as diving equipment, underwater robots, sewage treatment systems, etc.
High temperature pressure transmitter
Features: Suitable for high temperature environment, the working temperature range can reach 200℃-600℃ or even higher, using special high temperature resistant materials and heat insulation measures.
Application scenario: Commonly used for pressure detection in high temperature industrial processes such as metallurgy, glass manufacturing, and ceramic production.
Classification by output signal
Features: Output analog signal, usually 4-20mA current signal or 0-10V, 0-5V and other voltage signals, can be directly connected to traditional analog instruments or control systems.
Application scenarios: Widely used in some industrial systems that do not require extremely high accuracy and use traditional control methods, such as pressure monitoring in simple temperature control systems.
Features: Output digital signals, such as HART protocol, Profibus-DP, FF and other digital communication protocols, can provide remote configuration, diagnosis, multivariable measurement and other functions.
Application scenarios: Widely used in modern automated control systems and smart factories, facilitating intelligent management and efficient control of equipment.
Classification by installation method
Features: Connected to the pipeline or container through a flange, easy to install and disassemble, and good sealing performance. Application scenarios: Commonly used in chemical, food, pharmaceutical and other industries where sealing requirements are high, such as pressure measurement of strong acid and strong alkali media in chemical pipelines.
Features: It uses a threaded interface to connect to the device under test, which is simple and compact to install. Application scenarios: It is generally used in situations where the pressure is low and the medium is clean, such as pressure measurement in small hydraulic systems and pneumatic systems.
Insertion pressure transmitter
Features: The pressure sensitive element is inserted into the measured medium for measurement, and it can quickly respond to changes in the medium pressure. Application scenarios: It is commonly used for liquid level measurement in large-diameter pipelines, rivers, reservoirs, etc., and the liquid level height is indirectly calculated by measuring the liquid pressure.