Capacitance Level Switch

Capacitance Level Switch is a point-level detection sensor that detects the presence or absence of material by measuring changes in capacitance between the detecting probe and the vessel wall. When the material reaches the probe and the dielectric constant around the probe changes, it provides ON/OFF level detection signal for liquids or solids.

Widely applicable for various applications by selecting suitable PCB (capacitor) and probe type.

Simple solid-state design with no moving parts minimizes wear, reduces maintenance effort and ensures stable performance.

Possible to find the cost effective solution by selecting it from wide variety of model lineup.

Wide variety of PCB (capacitors) and type of probes.

Flexible combination of these allows stable level detection for various media, applications and environments.

Robust options applicable to harsh environmental conditions available.

Extra high temperature over 300deg, extra low temperature under -200deg, high pressure, vacuum condition, etc.

Effective for high temperature chemical process, LNG, liquid nitrogen, liquid hydrogen, etc.

Longer life time is expected because of the no moving parts design, besides, it's easy to make maintenance (cleaning).

Capacitance level switch operates by measuring the change in capacitance between its sensing probe and the vessel wall, which act as two electrodes of a capacitor.

When material approaches or contacts the probe, the dielectric constant of the surrounding medium increases, causing a measurable rise in capacitance.

The electronics continuously monitors this change and triggers a switching output once the capacitance exceeds a preset threshold.

This principle enables reliable level detection for liquids, slurries and bulk solids, independent of pressure or temperature variations.

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