Electromagnetic flow

Faraday's law: a conductive liquid moving through a magnetic field induces a voltage proportional to velocity.

PRINCIPLE · LIVE SIGNAL13.9mA

HOW IT WORKS

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Electromagnetic flow

FLOW VELOCITY
5.00 m/s

OUTPUT
12.0 mA

ADJUST FLOW VELOCITY

Coils create a magnetic field B across the pipe.
Conductive liquid moving through the field induces a voltage.
Electrodes pick up U = B × D × v, proportional to velocity.

AT A GLANCE

Strengths and limits

STRENGTHS

No moving parts, no pressure drop, full-bore

LIMITS

Liquid must be electrically conductive

INSTRUMENTS

Instruments using this principle

FL-210

Flow

Electromagnetic Flowmeter

Full-bore magmeter for conductive liquids, no pressure drop.

ACCURACY

±0.2 % of reading

PROTECTION

IP68

APPLICATIONS

Where this principle is the answer

APPLICATION

Sludge and slurry flow

Solids and abrasion rule out intrusive sensors and tight-clearance valves.

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