05/11/2025

Electromagnetic Flowmeter

Promag – Endress+Hauser Electromagnetic Flowmeter

With more than 3 million devices installed worldwide, Endress+Hauser is a pioneer in electromagnetic flow measurement technology. The Promag series delivers outstanding accuracy, high reliability, and long service life, enabling industries to optimize operational efficiency and reduce maintenance costs.

Measuring Principle of the Promag Electromagnetic Flowmeter

The electromagnetic flowmeter operates based on Faraday’s law of electromagnetic induction. When a conductive liquid flows through a measuring tube surrounded by a magnetic field, the charged particles within the fluid generate an induced voltage.

This voltage is detected by the electrodes and is directly proportional to the flow velocity, allowing for an accurate calculation of the volumetric flow rate. Thanks to this principle, the measurement is unaffected by:

- Pressure, temperature, or viscosity of the liquid
- Multiphase flow or fluids containing non-homogeneous impurities

Advantages of Promag Flowmeter

The electromagnetic flowmeter operates based on Faraday’s law of electromagnetic induction

1. Versatile application: Capable of measuring various conductive liquids (≥ 5 μS/cm), including wastewater, sludge, chemical solutions, and viscous food products.
2. Flexible sizing: Available in nominal diameters from DN 2 to DN 3000.
3. Easy installation: No pressure loss during operation.
4. High accuracy: Featuring low measurement error, excellent repeatability, and stable performance even under harsh operating conditions.
5. Easy CIP/SIP cleaning: No internal moving mechanical parts, ensuring hygienic operation and simplified maintenance..
6. Long service life: Robust design ensures reliable operation and suitability for long-term industrial applications.

Applications of Promag Flowmeter

The electromagnetic flowmeter operates based on Faraday’s law of electromagnetic induction

The Promag electromagnetic flowmeter is widely applied across various industries:

- Food & Beverage: Measurement of juice, milk, beer, and sugar solution. …
- Chemical & Pharmaceutical: Measurement of acidic and alkaline solutions as well as mixtures of conductive liquids…
- Water & Wastewater: Measurement of flow rates in water supply and wastewater treatment systems used in industrial operations..
- Mining & Construction: Measurement of mineral slurries, abrasive materials, and sand-containing mixtures.