Level Switch Keeps The Brews Brewing

BAUMER has been supplying Carlsberg breweries with instrumentation for more than 10 years, initially for the beer production lines in their plant near Copenhagen and more recently to a new production and distribution center in Frederica.

Yeast is an essential ingredient of the brewing fermentation process where it is used to convert the glucose in the wort to alcohol and carbon dioxide gas, giving the beer its alcohol content and its carbonation. However, yeast foam can be a problem in terms of accurate and reliable level measurement.

The solution provided by Baumer is the CleverLevel switch for detecting the filling level in the yeast tanks. It utilizes frequency sweep technology and is a universal level switch for all types of media.

The CleverLevel device technology is effective regardless of whether the media is wet, dry, sticky, or in this case is foam - as opposed to a traditional fork device that cannot recognize the condition of the media. The change from using traditional level fork devices to the CleverLevel switch has eliminated the problem of overflow in the excess tanks with the added benefits of a more environmentally friendly solution.

The switch is maintenance-free due to the minimal installation depth of 15 mm and the self-draining sensor tip. It is also approved to both 3A and EHEDG standards and can be configured visually and via the dedicated software and the FlexProgrammer. The switching range can be adjusted as required to ignore foams during maximum or minimum monitoring. This function can also be used when the level switch is supposed to ignore adhesive substances, for example in tanks with liquid chocolate even when the tank is empty and the sensor and tank wall are covered with chocolate.