Description
Baumer LBFS is a solid-state level switch using frequency-sweep technology for reliable detection of liquids, viscous media, and pastes. With no moving parts, it provides maintenance-free operation, fast response, and high chemical resistance. Ideal for food, pharma, water, chemicals, machine-building, and hygienic applications requiring precise point-level detection.
🔧 LBFS — Key Technical Data & Selection Parameters
| Parameter | Specification / Details |
| Sensing Principle | Frequency-sweep capacitive / tuning-fork alternative (solid-state, no moving parts) |
| Detectable Media | Liquids, oils, viscous fluids, pastes; also high-foam or aerated liquids |
| Minimum Dielectric Constant | ≥ 1.5 (for reliable switching) |
| Response Time | < 100 ms |
| Process Temperature | –40 °C to +115 °C (standard); up to +140 °C with high-temp version |
| Process Pressure | –1 to +40 bar |
| Material (Wetted) | 316L stainless steel |
| Electrical Output | PNP/NPN transistor output, IO-Link optional |
| Power Supply | 10…30 VDC |
| Process Connection | G1/2, G3/4, 1″, Tri-Clamp, DIN hygienic fittings |
| Protection Class | IP67 / IP69K |
| Installation Type | Horizontal or vertical; pipe, vessel, tank side-wall or top-mount |
| Certification | FDA-compliant, EHEDG options (depending on version) |
| Applications | Food & beverage, pharma, CIP/SIP, water, chemical tanks, lubrication systems, OEM machinery |




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