The FLDC is a battery-powered electromagnetic flow meter with a very high accuracy even at very low flows. The excellent repeatability as well as the above-average battery life makes this innovative water meter indispensable for the water market. Typical applications are leak detection in water networks, water consumption measurements and irrigation plants.
The meter is best suited for applications without a power supply where exact consumption or flow rates are required. Of course, the FLDC can also be used with an available power supply. The meter can be powered with main voltage and in case of a main failure, it is powered by an internal battery.
Important data are consequently saved.

SISEN electromagnetic flowmeters are widely used to measure volume flow of conductive liquids and liquid-solid two-phase fluids. The measurement principle of electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. In the right figure picture, the two electromagnetic coils on upper and lower ends generate a constant or alternating magnetic field. When the conductive medium flows through the electromagnetic flux and cut the magnetic induction line, an induced electromotive force will be generated and detected by two measuring electrodes. The magnitude of induced electromotive force is proportional to the velocity of conductive medium, magnetic induction intensity of magnetic field and conductor width(flowmeter measuring tube diameter), then it will come to the medium flow by calculation.

The equation of Faraday's Law ofinduced electromotive force:E=KBDv
Where:
E=induced electromotive force;
D=measuring tube diameter;
B=Magnetic Field Strength;
V=Velocity of Process Fluid(m/s);
K=Proportionality Constant(It is related to magnetic field distribution and axial length.)

The operating principle of the electromagnetic flow meter is based on Faraday’s law of magnetic induction: The voltage induced across any conductor, as it moves at right angles through a magnetic field, is proportional to the velocity of that conductor. The voltage induced within the fluid is measured by two diametrically opposed internally mounted electrodes. The induced signal voltage is proportional to the product of the magnetic flux density, the distance between the electrodes and the average flow velocity of the fluid.

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