Introduction
The Endress+Hauser Liquiphant FTL31 is a compact, stainless steel vibronic point level switch designed for reliable liquid level detection across all industries, especially machinery and cleaning systems. It delivers accurate, media-independent switching for overfill protection and pump dry-run prevention, offering plug-and-play simplicity, continuous self-monitoring, and optional IO-Link connectivity for seamless parameterization.
Key advantages
1. Industry-Leading Compact Form Factor: As the smallest vibronic sensor on the market, the FTL31 installs effortlessly in confined spaces, ideal for OEM machinery and tight pipe/tank configurations.
2. Media-Independent Reliability: Unaffected by conductivity, buildup, turbulence, or air bubbles, it delivers consistent switching accuracy regardless of liquid properties, ensuring process stability.
3. Zero Calibration, True Plug-and-Play: No on-site calibration or specialized tools required, reducing commissioning time and eliminating setup errors for immediate deployment.
4. Robust 316L Stainless Steel Build: Constructed with durable 316L wetted parts and a compact housing, it withstands harsh conditions, offering high durability and compliance with global marine and safety approvals.
5. IO-Link Enabled Smart Operation: IO-Link connectivity simplifies parameter setting, reduces maintenance complexity, and enables seamless integration into digital process control systems for enhanced efficiency.
Specification
| Parameter | Specification |
|---|---|
| Measuring Principle | Vibronic (Tuning Fork) |
| Application | Point level detection for liquids |
| Power Supply / Communication | 20–253V AC/DC (2-wire); 10–30V DC-PNP (3-wire) |
| Ambient Temperature | -40°C to +70°C (-40°F to 158°F) |
| Process Temperature | -40°C to +150°C (-40°F to 302°F) |
| Process Pressure | Vacuum to 40 bar (Vacuum to 580 psi) |
| Minimum Medium Density | >0.7 g/cm³ (>0.5 g/cm³ optional) |
| Main Wetted Parts | 316L stainless steel |
| Process Connections | G1/2, G3/4, G1, MNPT1/2, MNPT3/4, MNPT1, R1/2, R3/4, R1 |
| Key Approvals | WHG overfill protection, CSA C/US, EAC, marine approvals (ABS/LR/BV/DNV) |