51 INTRODUCTIONThe FLOMAT electromagnetic flowmeters are based on Faraday’s induction law.When an electrically conductive liquid flows through a magnetic field, perpendicular to theflow direction, it induces a voltage V proportional to the liquid velocity.Two electrodes in contact with the liquid and positioned perpendicularly to the magneticfield, sense this voltage V.The electronic converter is based on the most advanced technology in digital signalprocessing, in order to obtain accurate and reliable measurements.The device provides the following features: Coil excitation by means of pulsed signal to obtain a negligible zero offset. Pulse and current output proportional to the flow rate and user programmable.V = B·v·dWhere:V = Measured voltage in the electrodesB = Magnetic fieldv = Liquid velocityd = Distance between electrodes