Where should a MAG Flow Meter be mounted in typical installations?

• A. Horizontally
• B. Vertically, Upward
• C. Diagonally
• D. Vertically, Downward

Answer: (B)

Magnetic flow meters measure flow by the voltage generated as conductive liquid moves through a magnetic field, so the section of pipe around the sensor must be completely filled with liquid and free of gas pockets. Mounting the meter vertically with the flow upward helps ensure any entrained air or gas bubbles rise away from the sensing electrodes, keeping the measurement path fully submerged and stable. It also helps solids settle away from the sensing region. Horizontal installations can work but may allow air entrainment to affect the signal, and vertical downward can trap gas in the sensing area. So, placing the meter vertically with upward flow is the typical, most reliable setup.