Description
The Liquiphant FTL31-AA4U3BAWDJ is a compact vibronic point level switch designed for liquid level detection in tanks, vessels, and pipelines. It is widely used across industries, especially in machinery and cleaning systems, for overfill prevention and pump dry-run protection.
This device provides safe and reliable switching independent of medium properties, thanks to its continuous self-monitoring and robust vibronic measuring principle. The FTL31 requires no calibration, offers plug-and-play installation, and supports IO-Link communication for quick parameterization and easy system integration.
With a stainless steel 316L wetted construction, wide process temperature capability (–40…150 °C), and pressure resistance up to 40 bar, the FTL31 ensures long-lasting performance in harsh environments.
Specifications
| Category | Details |
|---|---|
| Manufacturer | Endress+Hauser |
| Product Name | Liquiphant FTL31 |
| Model | FTL31-AA4U3BAWDJ |
| Product Type | Point level switch for liquids |
| Measuring Principle | Vibronic (vibration) |
| Application | Overfill protection, pump dry-run protection, cleaning systems, liquid level detection in tanks, vessels, and pipes |
| Supply Voltage | 10–30 VDC, 3-wire PNP |
| Communication | IO-Link |
| Ambient Temperature | –40…70 °C |
| Process Temperature | –40…150 °C |
| Process Pressure | Vacuum…40 bar (up to 580 psi) |
| Minimum Medium Density | >0.7 g/cm³ (optional >0.5 g/cm³) |
| Wetted Parts | Stainless steel 316L |
| Process Connections | Threads: G1/2, G3/4, G1, MNPT1/2, MNPT3/4, MNPT1, R1/2, R3/4, R1 |
| Area Classification | Non-hazardous |
| Weight | 0.588 kg |
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