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ALTHEN sensor pressure sensor for level measurement. The static pressure submersible level transmitter (level gauge) is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses advanced foreign isolated diffused silicon sensitive elements or ceramic capacitive pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals (generally 4～20mA/15VDC) after temperature compensation and linear correction.

ALTHEN sensor introduction

Divided into two categories: one is contact type, including single flange static pressure/double flange differential pressure level transmitters, float ball level transmitters, magnetic level transmitters, submersible level transmitters, electric internal float ball level transmitters, electric float cylinder level transmitters, capacitive level transmitters, magnetostrictive level transmitters, servo level transmitters, etc. The second category is non-contact type, divided into ultrasonic level transmitters, radar level transmitters, etc. Static pressure submersible level transmitters (level gauges) are suitable for level measurement of various media in systems and industries such as petrochemical, metallurgy, electric power, pharmaceutical, water supply and drainage, and environmental protection. The compact structure, simple calibration and flexible installation method provide convenience for users to use easily. Standard signal output methods such as 4～20mA, 0～5v, 0～10mA can be selected by users according to needs. Using the principle of fluid statics to measure liquid level is an important application of pressure sensors. Special cables with ventilation conduits in the middle and specialized sealing technology are used, which not only ensure the watertightness of the sensor, but also allow the reference pressure chamber to communicate with the ambient pressure, thereby ensuring high precision and high stability of the measurement.

ALTHEN sensor features

1) Since the output of the liquid level is only related to whether the photoelectric probe contacts the liquid surface, and is unrelated to other characteristics of the medium, such as temperature, pressure, density, electricity and other parameters, the photoelectric level sensor has accurate detection and high repeatability; fast response speed, very precise liquid level control, and can be directly installed and used without calibration. 2) Due to the relatively compact size of the photoelectric level sensor probe, it can be installed separately in narrow spaces, suitable for use in special tanks or containers. In addition, multiple photoelectric probes can be installed on one measuring body to make multi-point level sensors and controllers. 3) Since all components inside the sensor are encapsulated with resin, there are no mechanical moving parts inside the sensor, so the photoelectric level sensor has high reliability, long life, and is maintenance-free.

ALTHEN sensor applications

Widely used in water plants, refineries, chemical plants, glass factories, sewage treatment plants, high-rise water supply systems, reservoirs, rivers, oceans, etc., for the measurement and control of static and dynamic liquid levels of water supply pools, distribution pools, water treatment pools, wells, water tanks, water boxes, oil wells, oil tanks, oil pools, and various liquids.

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