Level switches provide accurate and reliable remote liquid level indication for hygienic brewery, food and beverage, and biopharm processes.

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Compact, hygienic design

Alfa Laval Level switches are hygienic measuring devices that are especially suitable for detecting liquid levels in small process tanks used in brewery, food and beverage and personal care industries. This includes low-viscosity liquids, such as water and beer, as well as high-viscosity liquids and pastes, such as honey, yoghurt and toothpaste.

All wetted parts are made of AISI 316L stainless steel and PEEK, and designed to withstand process temperatures between -20 and +140°C. Because these 3-A certified level switches can withstand high temperatures, they are well suited for use in Cleaning-in-Place (CIP) and Sterilization-in-Place (SIP) processes.

Fast, accurate readings

Level switches enhance process reliability by delivering fast, accurate indication of the liquid levels. Integrated electronics provide a digital logic signal and incorporate automatic compensation for foam and bubbles as well as viscous, sticky media.

For more information, please refer to Documentation.   

Product Benefits

  • Compact, hygienic design
  • Fast, accurate readings
  • Provide a digital logic signal

 

How it works

Operating principle

To measure the liquid level, the level switch employs a high frequency sweep signal, which is emitted from the sensor tip into the tank.

The media act as a virtual capacitor that, together with a coil in the sensor head, forms a circuit creating the switch point signal. This virtual capacity depends upon the dielectric value of the media, which is well defined for most media.

Level Switch drawing,web

Part of a broad instrumentation range

Alfa Laval offers a comprehensive range of instrumentation intended for hygienic applications in the dairy, foodbeverage,home carepersonal care, biotechnology and pharmaceuticals.

For a broader instrumentation range, explorer the differentproduct categories: analytical instruments, cleaning validation instruments, flow instruments, level instruments, pressure instruments, temperature instruments and weighning instruments.

Food Logic

Alfa Laval's hygienic equipment combines high performance with gentle handling to preserve sensitive ingredients. Keeping up with the food industry trends and addressing four key challenges; supplying food products to consumers at a competitive price, getting the most from raw materials, reducing waste and emissions, and delivering safe and hygienic food products.

Product catalogue

Latest 'Close at hand' online version. New features in the English include: Anytime integration, switching between product and spare parts catalogues, copy-pasting item numbers, help and feedback features, and pdf download option for offline use.

CAD portal

Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.

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Animations

Visit the animations site and take a look inside a product to see and understand how it works. 

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