Operator Interfaces, Switches & Relays


Float switches for liquid applications

March 2011 Operator Interfaces, Switches & Relays

Bernstein, a provider of industrial safety technology, offers a range of float switches.

These are designed as contactless magnetic switches and are used to control level in containers or tanks with non-flowing or flowing liquids, such as water, oil or caustic solutions.

The float switches consist of a connection head, a float and an immersion tube with one to four magnetic sensor elements. Bernstein also produces versions with either a straight or an elbow immersion tube. Rising or falling liquid levels carry the float, equipped with a ring magnet, into the detection zone of a magnetic sensor element. Here the magnetic field of the float is evaluated and a switching pulse generated.

The range extends from miniature float switches specially developed for small tanks or reservoirs, such as those used in the automotive industry, drink vending machines or air conditioning systems, through to heavy duty, pressure proof versions.

By combining options for various enclosure materials, floats and connection heads, it is possible to create the optimum configuration for virtually any application. Based on a comprehensive modular system of adjustable float switches, the product range allows the right measurement solution to be developed. The user can adjust the switching points to individual applications, thus creating a customised product adapted to specific operating conditions.

For more information contact Brad Cassell, Anglo Allied Engineering, +27 (0)11 766 1180, info@angloallied.co.za, www.angloallied.co.za



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