However, the basic principle always applies. In actual practice, capacitance change is produced in different ways depending on the material being measured and the level electrode selection. The capacitance relationship is illustrated with the following equation:Д = Distance between the plates in inches RF (radio frequency) capacitance instruments detect this change and convert it into a proportional output signal. A change in the value of the capacitor takes place because the dielectric between the plates has changed.

The metal rod of the electrode acts as one plate of the capacitor and the tank wall (or reference electrode in a non-metallic vessel) acts as the other plate.ДЄs level rises, the air or gas normally surrounding the electrode is displaced by material having a different dielectric constant.

A capacitor is formed when a level sensing electrode is installed in a vessel. While these basic capacitance style switches are useful.Д¬apacitance level transmitters use the principle of the dielectric plate measurement technique to determine a level or interface measurement. The presence of a material creates a shift in the received capacitance causing the switch to activate. A basic capacitance switch uses this dielectric constant to complete a capacitance circuit between a sensor and a reference. Capacitance Level Switch CalibrationД®very material has a relative permittivity or dielectric constant. The amount of such liquidВ storedВ can be found by measuring level of the liquid in a container or vessel.В Level sensors detect the level of substances like liquids, slurries, granular materials, and powders.ДЄ Capacitance switch designed for single point level detection in both solids and liquids. Level Measurement: In industry, liquids such as water, chemicals, and solvents are used in various processes.

Smart tool level calibration