The tuning fork level switch is a point level control device used for liquid media, including low‑density, high‑viscosity, corrosive liquids, and more. It drives the tuning fork to vibrate at its natural frequency via a piezoelectric crystal. When the fork comes into contact with the measured medium, the vibration frequency and amplitude change significantly. An intelligent circuit detects this change and converts it into a switching signal output. Its core advantages include high reliability, no moving parts, maintenance‑free operation, and immunity to the effects of foam, vortices, pressure, and variations in medium conductivity.
