Level Measurement

Vibration Type Level Sensor

VLS Series (Solid Level Measurement)

VLS series vibration type level sensor solid measurement

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Vibration Type Level Switch – VLS Series is designed for solid level measurement. The blade of the probe vibrate on its resonance frequency. When filling material covers the blade of the probe, the vibration stops. This is sensed by the electronic circuitry and the output relay switches. When the blade gets uncovered, the vibration will restart and the relay will switch back.

The VLS series is a piezoelectric driven vibration type level switch that detects the level in bins, silos and hoppers, filled with grained or powdered materials (bulk solids). The instrument can be used for overfill protection, for high or low level alarm.

Vibration Type

The blade of the probe vibrate on its resonance frequency. When filling material covers the blade of the probe, the vibration stops. This is sensed by the electronic circuitry and the output relay switches. When the blade gets uncovered, the vibration will restart and the relay will switch back. As only the tip of the vibrating blade is sensitive and not the base, build-up on the container wall has no influence on the function of the instrument. The shape of the blade and its vibration have a self-cleaning effect.

VLS Series vibration type level sensor solid level measurement application