Function of Magnetic Level Gauge
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Function of Magnetic Level Gauge The magnetic float level transmitter device serves as a readings recorder for the electrical, continuous remote indication of the filling level. The operation of the measuring devices is based on the float principle. Through the wall of a guide tube the magnetic field, which is contained in the spherical or cylindrical float, triggers reed contacts, which uninterruptedly pick up the measuring voltage given at a resistance measuring chain. The measuring voltage is proportional to the height of the filling level (3-wire potentiometer circuit). The size of the reed contacts is made up in different accuracy’s. In connection with a control unit the resistance value can be converted into a standardized analogue value, e.g. 4~20 mA. |