Sanitary Magnetic Flow Meters

Magmeter designs can be easily adapted to suit industry requirements and applications: Integral Flange Type, Remote Ceramic Type, Food and Pharmaceutical Sanitary flow meters. Recent advances in magmeter technology include electrodeless magmeters for adhesive applications, installation-cost-effective two-wire magmeters, and fieldbus versions for digital communications applications.

The ADMAG AXF series and ADMAG CA series of flow meters is available in a sanitary version that meets the strict requirements of the food-processing and bio-technology/ pharmaceutical industries.

Magnetic Flow Meter: How It Works

Electromagnetic flowmeters (magmeters) are among the most widely used flowmeter types today. If conditions are suitable for their use, magmeters produce superior results as they rely on a measurement principle that is non intrusive and produces no pressure loss. Magmeters may be used on all commercially available pipe sizes. Here's how magnetic flow meters work:

Magmeters consist of the following elements:

  • Non ferromagnetic flowtube
  • Non conductive liner
  • Excitation coils
  • Electrodes

The generated magnetic field is perpendicular to the fluid flow direction, allowing measurement of the electromotive force E, which, according to Faraday law of induction (Eflow~ B * v * D), is proportional to fluid flow velocity in the pipe. The overall merits of this design are obvious:

  • There is no obstruction in the pipe and therefore no pressure drop caused by the magmeter.
  • It works on all commercially available pipe sizes.
  • The impact on measurement accuracy by flow disturbances in the media is negligible, thus require less upstream and downstream straight pipe run.

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