The Endress+Hauser FTL33 liquid level switch manual provides specifications, installation, wiring, and operation details for food‑industry applications.
The FTL33 is a liquid level switch designed for the food industry, suitable for tanks, mixers and pipelines with strict hygiene requirements. It features a fully metal process isolation, stainless‑steel housing, IP69K protection, 3A certification and can withstand up to 150 °C process temperature.
The manual covers the measurement principle, electrical connections, supply options, output types, installation guidelines, environmental limits and certification information. Detailed tables list performance parameters, wiring diagrams, and recommended accessories such as M12 connectors and process adapters. This manual is written in Chinese.
| Measurement range | > 0.7 g/cm³ (optional > 0.5 g/cm³) |
|---|---|
| Supply voltage (DC‑PNP) | 10–30 V DC |
| Switch output current (three‑line) | 200 mA |
| Switch output current (two‑line) | 250 mA |
| Power consumption | < 975 mW |
| Protection rating | IP69K |
The device can be set to high‑limit (MAX) detection or low‑limit (MIN) detection.