09/02/2026
Magnetrol Level Switch is an industrial device used to reliably monitor, control, and detect liquid or solid levels inside tanks, vessels, and sumps.
How It Works
Magnetic Coupling: Most traditional models use a buoyant float or weighted displacer attached to a magnetic attraction sleeve.
Switch Activation: As the liquid level rises or falls, the sleeve moves into or out of a permanent magnet's field, causing a snap-action switch to trigger without needing complex internal electronics.
Alternative Tech: Newer lines also incorporate ultrasonic (Echotel) or electronic RF technology for specialized point and continuous measurement.
Key Applications
Pump Control: Automatically starts or stops pumps to maintain proper fluid levels and prevent dry running.
Overfill Protection: Triggers emergency shutdowns or alarms before a high-level threshold spills or damages equipment.
Interface Detection: Separates boundary lines between two different liquids (such as oil and water).
If you need help selecting or replacing a unit, tell me:
What process media or liquid are you measuring?
What are your pressure and temperature requirements?
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