It is an electronic device that measures the height of the material, usually liquid , in a tank or other container.
Integral control processes in many industries, level measurement sensors fall into two main types. Sensors measuring point level is used to mark a height of a liquid in a certain preset level . Generally, this type of sensor functions as an alarm , indicating an over filled when the particular level has been acquired, or the contrary, a low level alarm . Continuous level sensors are more sophisticated and can track the level of an entire system. These measure the fluid level within a specified range , rather than at a single point , producing an analog output that is directly correlated to the level in the vessel . To create a management system level , the output signal is related to a process control loop and a visual indicator.