Point level sensors for oils & lubricants

What the sensor needs to do

A successful test in water says little about a low-response oil or a cold, viscous drained film.

Installation and integration

Mount where the tip contacts the bulk oil when the target condition occurs. Verify compatibility with additives, seals and cleaning products. In hot systems, account for the temperature at the electronics and connector as well as the process temperature.

A representative test plan

Test the lightest-response oil, cold oil, hot oil, aerated oil and the film after drainage. If water contamination matters, test the expected emulsion rather than only clean layers of pure oil and water. An emulsion may not produce the same response as either original phase.

A common selection mistake

Describing a point sensor as an oil-quality analyzer or as a continuous oil/water interface meter without a demonstrated measurement basis.

What to include in your inquiry

• Oil grade, additives and approximate dielectric data if available
• Cold-start and hot operating temperatures
• Foam, entrained air and contamination conditions
• Required output behavior and installation geometry

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.