Point level detection in oils and lubricants

Identify the oil precisely

Provide the grade, base fluid and relevant additives. Used oil may contain water, particles or degradation products that differ from fresh material. If the process can use several grades, include each in the suitability review.

Think through draining and cold starts

Viscosity changes can alter how quickly the tip clears. A hot oil may drain cleanly while the same product at startup leaves a thick film. Include the longest normal idle period and the expected cold temperature in a test plan.

A low-level mounting should represent the usable supply for the equipment. A residual pocket around the tip can delay an empty indication.

Compare alternatives fairly

A float may be appropriate where buoyancy and cleanliness are stable. An electronic tip can be useful where space or moving-part deposits are concerns. The best selection follows demonstrated behavior, material compatibility and the required output, not a claim that one principle is always superior.

What to confirm for your application

• Oil grade and additives
• Fresh versus used condition
• Temperature and viscosity range
• Residual film and drainage
• Local condition at the required alarm point