Key facts
- Brand
- Endress+Hauser
- Model
- FTL33
- Category
- Industrial Supply
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-09-29
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Endress+Hauser FTL33 Liquid Level Switch User Manual
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.
Endress+Hauser FTL33 specifications
| 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 |
Source: Endress+Hauser FTL33 Liquid Level Switch User Manual
All Endress+Hauser FTL33 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What are the two operating modes of the FTL33?
The device can be set to high‑limit (MAX) detection or low‑limit (MIN) detection.
What is the recommended storage temperature range for the FTL33?
The device can be stored between –40 °C and +85 °C.
From: Endress+Hauser FTL33 Liquid Level Switch Operation Manual
What is the maximum process pressure the sensor can measure?
It can handle pressures from –1 bar up to +40 bar.
From: Endress+Hauser FTL33 Liquid Level Switch Operation Manual