SRC400 Capacitive level gauge is a new type of capacitive continuous level meter. Due to the use of radio frequency technology and microcomputer technology, the traditional capacitive level gauge solves the problem of large temperature drift, difficult calibration and fear of adhesion, and can be widely applied to continuous measurement of various liquid solid level and interface. Especially in the environment of high temperature, strong corrosion and dust, it is unmatched by other types of level gauges.
working principle:
When the liquid level sensing electrode is installed in the container, a capacitor is formed. The metal rod (measuring electrode) of the electrode serves as a plate of the capacitor. The container: (Note: If the wall of the container is insulating material, it should extend into the other electrode. , referred to as the reference electrode) as the other plate of the capacitor, when the level rises, the air or other gas normally enclosed between the two plates has a different dielectric constant, when measured
The material changes the dielectric capacity due to the change in dielectric properties between the plates. The RF capacitance level meter detects this change in capacitance through the RF circuit and converts it into a linear current output. The relative dielectric constant of the general process medium should be above 1.5.
