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Fluid Level Sensors Explained

by Mac Smith

Fluid level sensors, also known as magnetic float level sensors, use a magnet that has been sealed inside a float that changes positions with fluid levels to cause the opening or closing of a mechanical switch, either through direct contact or in proximity of a reed switch. With mechanical floats on the other hand, the float is directly connected to a micro switch.

For both examples level sensors, chemical compatibility, temperature, specific gravity (density), buoyancy, and viscosity affect the selection of the stem and the float. For example, larger floats may be used with liquids with that have an extremely low specific gravity, while still maintaining buoyancy. The choice of float material is also influenced by temperature-induced changes in specific gravity and viscosity - changes that directly affect buoyancy.

In order to effectively monitor the contents of your storage tanks, a fluid level sensor may be a necessity depending on your application.

The NetGuardian LPG Controller gives your business a competitive advantage by providing 24/7, highly accurate tank level data for monitoring propane inventory and remotely maintaining site power. This RTU is the reliable choice for anyone with remote propane tanks.
  • Eliminate propane run-outs and expensive emergency deliveries.
  • Automatic and manual operating options that allow you to personally customize how you monitor your power.
  • Alerts and notifications sent to your desk or in the field - PC, laptop, smartphone, or tablet. If you have web access, you can get the data.
  • Fill your tanks only when needed and save yourself unnecessary time and expense.
  • Become aware of major tank issues, such as leaking or overfilling.

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