Magnetostrictive Tank Gauging
Magnetostrictive Tank Gauging
There are different ways of measuring levels in a tank, whether it be hydrostatic, magnetic float, capacitance, ultrasonic or conductance. Tank gauges are used to determine different variables including levels, condensation, density, or temperature.
Magnetostrictive tank gauges use magnetic tracking to determine the fluid pressure in a closed body of liquid. Magnetostrictive materials change their shape when subjected to a magnetic field, converting magnetic energy into kinetic energy. Magnetostriction is the property of ferromagnetic materials, which have a structure that is divided into domains. Each domain is a region of uniform magnetic polarisation. When a magnetic field is applied, the boundaries between the domains shift, rotating them, causing a change in the material’s dimensions.
LabkoMax and LabkoFlex
The LabkoMax and LabkoFlex systems are designed for reliable, accurate and inexpensive fuel storage monitoring, in applications such as service stations, terminals, refineries and other fuel distribution sites. These systems easily intensify logistics, optimise storage, detect condensated water and control leaks. They measure product level, temperature and eventual condensed water level. They are based on the magnetostrictive measuring principle, so are ideal for applications demanding high accuracy and good repeatability.
The sensor’s wetted parts are of stainless steel and PVDF, suitable for fuels like gasoline, diesel, fuel oil, various additives and industrial chemicals. They can take measurements from tanks up to 15 m high, are very easy to install and have an IP 68 structure. The LabkoMax is best for tanks that are less than 5 m high, while the LabkoFlex is most suitable for tanks between 5 – 15 m high. LabkoMax sensor can be equipped with one or two floats and optionally with 1 – 5 temperature sensors.
The MPS-4 is the interface and barrier unit of both systems, transforming the measurements into digital information. It is compatible with most common pump controllers, cash registers and outdoor payment terminals. It is also possible to observe the level information of containers in real time online with the LabkoNet® service site.