The sensor detects the contamination of the oil by means of the ferromagnetic particles that accumulate on the permanent magnet of the sensor head. If a certain amount of particles is exceeded, the magnetic field is compensated, whereupon the particles will dissolve again from the sensor head. The time intervals between two repulsive operations provide information on the contamination of the oil.
The OPCom FerroS is an intelligent sensor for determination of
the condition of hydraulic and lubricating systems based on
ferromagnetic wear particles. The sensor is a screw-in / immersion
sensor and is designed for continuous monitoring of ferromagnetic
contamination in oil.