A float, fitted with a magnet, slides along a guide tube following the variations in the level of a liquid.
The float assembly consists of a hollow and drilled float in which a magnet is inserted. The stainless steel guide tube passes through the float to guide it.
In passing, the magnet of the float acts on a potentiometric line, located in this tube, is made up of a succession of ILS bulbs and resistors. The signal from this line is converted by the transmitter into a 4-20mA signal with two output wires. The transmitter is mounted in a standard or ADF ATEX enclosure on the outside of the vessel. The set is also certified from SI (ia). The output current is proportional to the filling of the tank