Compact Tuning Fork Level Switch – Overview This product is a liquid-level switch based on vibrating short tuning fork technology. A piezoelectric crystal is used to vibrate the tuning fork at its natural frequency. When used for low-level alarm purposes, the liquid in the container drains downward through the tuning fork, causing a change in natural frequency. This is detected by the electronic components and switches the output state. When used for high-level alarm purposes, the liquid in the container rises and makes contact with the tuning fork which changes the vibrating frequency, switching the output state. This compact design is made from stainless steel, making it a durable instrument suitable for a variety of liquid applications including viscous liquids, aerated liquids, and grout. The switches are threaded into piping or storage tanks, or installed in food industry facilities through sanitary fittings. The direct load switch is suitable for all power or PNP outputs and is used as a direct interface to the PLC. Apply only to secure areas. Operation is affected by flow, turbulence, bubbles, vibrations, solids content, coating, liquid properties, and product changes. Compact Tuning Fork Level Switch – Features No calibration Easy installation Polarity insensitive Short circuit protection Industry-standard plug/socket fittings are used No moving parts or gaps for minimal maintenance Electronic components, Self Test and Condition Monitoring LED displays Magnetic test points provide convenient functional testing Compact design Lightweight The “Fast Drop” tuning fork design has replacement response time for viscous liquids Sanitary connector
