Electromagnetic Flowmeter

Magnetic flow meters operate using the principle of Faraday’s Law of electromagnetic induction. 

Magmeters utilize a set of coils and electrodes with the coils powered by an electric current from the transmitter. The applied current creates a magnetic field across the pipe. 

When the pipe is full and flowing, the force of the magnetic field causes charged particles in the fluid to separate. 

This separation of positively and negatively charged particles results in an induced voltage between the electrodes.

The induced voltage is proportional to flow rate, providing an accurate flow measurement.

For accurate and stable measurement, proper installation of a supmea electromagnetic flowmeter is essential. 

Always install the flowmeter in the correct flow direction and make sure the measuring tube remains completely filled with liquid.
 For vertical installation, the liquid should flow from bottom to top, while for horizontal installation, the electrodes should be positioned horizontally to prevent air bubbles or sediment from affecting the measurement.

 It is also recommended to maintain sufficient straight pipe runs—typically at least 10D upstream and 5D downstream—to ensure a stable flow profile. Avoid installing the flowmeter near pumps, strong vibration sources, or equipment that may cause electromagnetic interference, and ensure proper grounding for reliable and accurate operation.