Risk Assessment of Milk Foam Influence on Level Measurement


A dairy produces rice milk in a permanent process with 2000 l of milk per hour. Previous measuring systems could not distinguish properly between milk-rice mixture and foam in the feed tank.


  • The supply of milk and rice could not be precisely controlled
  • The level in the reserve tank repeatedly dropped to zero
  • The plant shut down in the middle of the production process to protect the pumps
  • The product remaining in the process overheated and became unusable
Application Brochure:

Application Detail

The Experienced Damage

The rice milk production stopped in the middle of the process.

  • The entire run of product which was still in the process was lost, meaning the loss of several thousand liters of rice milk
  • The plant had to be cleaned completely
  • During the downtime of the plant, for cleaning no production was possible, meaning the loss of several hours of production time

The Solution

Precise, foam-independent level measurement with the NSL-F potentiometric level sensor

  • Ideal for demanding applications with foam, pasty, or highly adhesive media
  • For vessels from 50mm to 3000mm height and process temperatures up to 140° C
  • Many options for individual adaptation