Description
Baumer LFFS is a universal liquid level switch based on advanced frequency sweep technology, providing reliable point-level detection for water, oils, chemicals, viscous media, and hygienic applications. With adjustable sensitivity, IO-Link connectivity, fast response, and no moving parts, it ensures stable operation in tanks, pipes, and process equipment across food, pharma, chemical, and industrial plants.
🔧 LFFS — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Sensing Principle | Frequency-sweep solid-state technology (vibration-free, no moving parts) |
| Detectable Media | Water, oils, chemicals, viscous fluids, emulsions, CIP media |
| Minimum Dielectric Constant | ≥ 1.5 (sensitivity adjustable for various fluids) |
| Response Time | < 100 ms |
| Process Temperature | –40 °C to +135 °C (up to +150 °C for short SIP cycles) |
| Process Pressure | –1 to +40 bar |
| Wetted Materials | 316L stainless steel, PEEK (depending on variant) |
| Output Signal | PNP/NPN switch output; IO-Link for configuration & diagnostics |
| Power Supply | 10…30 VDC |
| Process Connections | G1/2, G3/4, 1″, Tri-Clamp, DIN hygienic connectors |
| Protection Rating | IP67 / IP69K (washdown safe) |
| Installation Orientation | Horizontal/vertical in pipes, tanks, vessels |
| Approvals | FDA-compliant & EHEDG (depending on version) |
| Typical Applications | Food & beverage, dairy, pharma, CIP/SIP, chemical tanks, OEM packaging, water treatment |




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