Milk, yogurt, syrup, sauces, edible ingredients and beverage blends
What the sensor needs to do
A sensor that sees a residual film as a full pipe can keep a transfer permissive active after usable product has drained.
| Location | Control objective | Selection focus |
|---|---|---|
| Balance tanks | A defined low level before the transfer pump draws air. | Check the lowest usable volume and outlet geometry. |
| Filling equipment | Product present before starting a filling sequence. | Review bubbles, splashes and intermittent flow. |
| CIP return | A repeatable distinction between defined process states. | Test product, rinse water and the actual cleaning solutions. |
Installation and integration
Use a documented hygienic connection with a compatible seal and the specified mounting orientation. The active tip must contact the bulk medium without sitting in a dead pocket. Review drainability, cleanability and access to the connector as part of the complete assembly. An industrial G½ thread does not become a hygienic connection merely because both parts are stainless steel.
A representative test plan
Use representative product at the coldest and hottest production conditions. Record a clean dry state, a covered state, the drained coated state, foam where present, and the complete cleaning cycle. A single beaker test with water cannot establish performance with yogurt or syrup.
A common selection mistake
Treating a washdown rating as evidence of process-side hygienic approval, or assuming a short cleaning-temperature limit permits continuous hot operation.
What to include in your inquiry
- Product composition, viscosity and normal temperature
- CIP/SIP chemicals, concentrations, time and temperature
- Mounting drawing, connection standard and seal
- Desired wet/dry output and PLC input type
Choose a starting point
Review Lisen electronic point switches for a configured industrial package or Baumer CleverLevel families for a documented manufacturer selection. Selection depends on the exact medium, configuration and duty. A family name alone is insufficient to approve the application.
Technical references
Lisen technical reference — English summary of the supplied 2024-11-25 manual ↗
Baumer — CleverLevel point level sensor portfolio (reviewed 2026-10-03) ↗
Family information and engineering guidance are a starting point. Confirm the exact order-code documentation and installation requirements.