Thread Content
Product Overview of Surface-Mounted Level Switches: The surface-mounted level switch is a new type of device for measuring and detecting liquid levels. It is mainly used to monitor the liquid level in storage tanks, enabling upper and lower limit alarms. It is also possible to detect whether there is liquid in the pipeline (dry mode protection). The material of the storage tank can be various metals, non-metals, or non-foaming plastics, and wall thicknesses of up to 50 mm can be measured. This technology is not affected by factors such as medium density, dielectric constant, conductivity, reflection coefficient, pressure, temperature, or precipitation; therefore, it is suitable for the engineering control of liquid level in various industries including pharmaceuticals, oil, chemicals, power generation, and food processing. It is an ideal choice for detecting toxic and highly corrosive liquids. Working principle: The probe of the level switch uses a coupling agent to transmit the high-frequency ultrasonic pulses it generates to the outer wall of the container. This pulse propagates through the container walls and the liquid, and is also reflected back by the inner surface of the container. By detecting and calculating these reflection characteristics, it is possible to determine whether the liquid level has reached the position where the level switch probe is installed. The controller of the level switch outputs a relay signal to monitor the liquid level. Application areas ☆ Pharmaceutical manufacturing – for level control of reaction fluids in pipes and storage tanks, etc. ☆ Petrochemical industry – for level control in oil transport pipelines and storage tanks, etc. ☆ Food industry – for level detection and monitoring in projects related to brewing, beverage production, milk processing, as well as in storage tanks and pipes. ☆ Used in conjunction with control systems. Performance specifications: Precision: ±5mm; Operating frequency: 20 KHz–43.0 KHz (varies depending on the model); Display: LED lights; Output (optional): Relay output (passive contacts). Power supply: Operating voltage: DC12–30V or AC220V; Power consumption