Non Contact Ultrasonic Water Level Sensor, Split Type, RS485/4-20mA

A split-type non-contact ultrasonic level sensor transmits ultrasonic signals to the surface of the measured medium via a probe. When the ultrasonic waves encounter the liquid surface, they are reflected, and the reflected echo is received by the probe. The controller calculates the distance from the sensor to the liquid surface based on the time difference between the transmission and reception of the ultrasonic waves, combined with the speed of sound, thereby calculating the water level height. Because it uses a non-contact measurement method, the sensor does not need to be in direct contact with the liquid, avoiding problems such as corrosion, scaling, and contamination, making it particularly suitable for long-term continuous monitoring.

A split-type ultrasonic level sensor separates the probe from the display/control unit. The probe can be installed in humid, high-temperature, or dusty environments, while the controller can be installed in a relatively safe and easily accessible location. This design not only improves the system's environmental adaptability but also facilitates parameter setting, data display, and subsequent maintenance for the user. Furthermore, in environments with strong interference or complex working conditions, the split-type structure is more conducive to improving overall stability and service life.

A split-type ultrasonic level sensor is primarily used for water level and liquid level measurement, suitable for applications such as clean water, wastewater, industrial wastewater, rivers, pools, tanks, and wells. Under certain conditions, it can also be used for measuring the level of liquids with small particles and relatively stable surfaces, or some solid materials. However, for environments with excessive foam, violently fluctuating liquid surfaces, or strong steam, proper selection and installation are necessary to ensure measurement accuracy.