The family of level Sensor measurement systems is classified into different categories such as:
Liquids or Solids Level Measurement
Point or Continuous Level Measurement
Electromagnetic or Electromechanical Level Measurement
Contacting or Non-Contacting Level Measurement
General Considerations for Liquid Level Sensor Selection:
Density and viscosity
Vapors mist and dust
Chemical composition
Interfaces and gradients
Ambient temperature
Humidity/moisture
Process temperature
Process pressure
Regulated environment
Out of these four types of measurement systems, this article describes about the point level measurement and detection system, and the Continuous Level Measurement and Detection Systems are explained briefly in the following paragraphs. These both measurement systems cover different types of level sensors.