Lauter Tun wort separation control using the ITM-3 Turbidity Monitor.
The ITM-51 monitor is installed in the discharge pipe of the lauter tun (see fig. 1) where during the entire process a turbidity measurement is used to control the change-over valve between returning by the loop or directing to the wort kettle. To start purifying, the wort is first returned by the loop until the target turbidity value is reached. When this is achieved the wort is allowed to move forward in the process to the wort kettle. If the measured turbidity value exceeds the target due to the process of slicing or sparging, the wort is automatically returned to the loop until the target clarity is achieved. A malfunction message can be generated if the turbidity value does not fall to below the target value within a defined time limit warranting addition action.