Electromagnetic Flow Meter Selection Guide

When to choose an electromagnetic meter

• Conductive liquids such as water, waste water, acids and slurries
• Pipes that run full of liquid without entrained gas

Key configuration steps

1. Confirm the liquid is conductive (roughly above 5 µS/cm)
2. Choose liner by media: PTFE for chemicals, rubber for clean water
3. Select electrode material to withstand the media

Sizing rules of thumb

• Keep flow velocity between 1 and 4 m/s
• Match the meter to the line size in most cases
• Allow 5D upstream and 2D downstream straight pipe

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