Level Measurement & Control

Microwave level switch for food and pharmaceutical applications

August 2015 Level Measurement & Control

Kobold Instrumentation has introduced a microwave level switch – model LNM – made of stainless steel and food-approved materials, developed for almost all applications in the food and pharmaceutical industries.

The microwave field penetrates several millimetres into the medium and the level, even in the most difficult media, can be detected. The level switch is particularly suitable for use with foaming media because the foam, condensate or remains of the transported medium that sticks to vessels, is not detected. It is also possible to detect non-conductive media. The output only switches when the coupling section is completely covered by the medium, which means it is possible to install LNM in tanks, independent of mounting position.

In combination with the weld-in sleeves model LZE or LZE-R, the probe provides a measuring point that has no dead space and meets European Hygienic Engineering and Design Group standards (EHEDG). This level switch is therefore very well suited for CIP/SIP cleaning applications.

A variety of adaptor sleeves are also available for different process connections such as Varivent, dairy connection and tri-clamp adaptors, so that the LNM may also be used in existing systems without problems.

Electronics integrated in the stainless steel head enables direct sensor signal processing and the output signal can be transmitted directly to a PLC for further processing.


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