CellD SARL

A unique and foolproof measurement principle


The Charis Technology/Hycontrol foam controller works by passing a weak AC current through the foam (or liquid) and uses it to measure its impedance.

The probe is designed with two electrodes

The sensor is designed with two electrodes called Sense (at the end of the sensor) and Guard (on the body of the sensor).

The Sense electrode is used to sense foam while the Guard electrode is designed to prevent the build-up of any surface coating from causing false readings.

The Guard electrode supplies all the leakage current leaving the Sense electrode to sense only foam and isolates the sensor from the interference caused by fouling.
This technology enables the sensor to continue working reliably even in conditions of extreme fouling.

In this way, even in case of heavy fouling of the probe by foam deposits, the SureSense controller detects only the foam in formation.

This exclusive Charis technology allows reliable work even in extreme fouling conditions and is suitable for all types of tanks from a few liters to hundreds of M3.
Sensing probes are available in diameter 20mm with connectors of different types "Triclamp", BSP, DN25, PG13,5, or specific depending on the manufacturer of tanks ... .. A connector cable gland is also available to adjust the height.

On the same probe we can have up to 3 levels of detection