In a by-pass level gauge with indication by means of magnetic strips, could the strips show the wrong colour in case of a 360º rotation and therefore give an incorrect indication of the level?
In a level indicator by means of magnetic strips, the level variations are followed by an internal float.
This, in turn, acts on the indicator by means of a magnetic field. The reading is taken where the strips change from white to red remaining in that position until the float does not pass again in the opposite direction.
The magnetic strips are mounted on an aluminum rail, which is a non-magnetic material, and rotate under the effect of the magnet inside the float.
This prevents the strips from being “stuck” to the rail by its magnetic field and reacting to the magnetized float.
To ensure a correct level indication, it is guaranteed that the magnetic strips rotate 180º when changing colour, through their magnetic field, which keeps them correctly oriented, and the passage of the float.
Our LT Series level gauges, model LTL, use this type of indication. If you are interested in this type of level meters we inform you with more details here.