| Attribute | Value |
|---|---|
| Brand | E+H: ENDRESS+HAUSER |
| Model | LIQUIPHANT FTL31 |
| Order Code | FTL31-3VL1/0 |
| Extended Order Code | FTL31-AA4U3BAWDJ +LELFZ1 |
| Voltage (U) | 10…30V DC |
| Max Current (I MAX.) | 200 mA |
| Temperature Range (Process) | -40°C to +150°C |
| Temperature Range (Ambient) | -40°C to +70°C |
| Maximum Working Pressure (MWP) | 40 BAR |
| Protection Rating | IP65 |
| Enclosure Type | Type 4X ENCL. |
| Approval Codes | Z-65.40-532 / Z-65.11-531 |
| Part Number | 0005-1252-150 |
| Type | Grenzschalter / Limit Switch |
| Serial Number | 4570663320/000010 |
| Country of Origin | Made in Germany |
| Weight | 470 GM |
| Condition | New – 1 PCS |
| Reference Number | 51018 |
What is the Endress+Hauser FTL31-3VL1/0 Limit Switch?
The Endress+Hauser FTL31-3VL1/0 Limit Switch is a vibronic level switch for point level measurement of liquids in tanks, vessels, and pipelines. Employing a tuning-fork measurement principle, it provides reliable detection even under adverse conditions like vibration, turbulence, or foam.
This is a maintenance-free limit switch with no parts in motion, ensuring reliable level control of conductive and non-conductive liquids. It’s widely implemented across industrial automation, marine equipment, water treatment and chemical processes where safety and precision are the primary concerns.
Key Features of Endress+Hauser FTL31-3VL1/0
Vibronic Measuring Technology – Operates on the natural resonance frequency of the tuning fork for accurate liquid level detection irrespective of density or conductivity.
Compact Construction – Simple to install in limited spaces and retrofitting projects.
Robust Design – Constructed with high-quality stainless steel and watertight electronics for prolonged reliability within harsh marine and industrial applications.
Plug-and-Play Commissioning – Factory-configured and ready for instant operation with minimal adjustment.
Universal Suitability – Suitable for use in vessels, tanks, and pipes with liquids of different viscosities.
Fail-Safe Output – Supplies stable switching signals to guard pumps, valves, and process hardware against overfill and dry-run states.
LED Indication – Integrated status LEDs for rapid diagnostics and ease of operation.
Wide Temperature and Pressure Range – Suitable for industrial process control where environmental conditions are changeable.
Applications of Endress+Hauser FTL31-3VL1/0 Limit Switch
Industrial Process Control: For precise detection of fluid levels in reactors and tanks.
Marine Automation: Provides safe operation of ballast and bilge systems by avoiding overflow or dry-run.
Water and Wastewater Treatment: Measures high and low levels in storage and filtration tanks.
Chemical and Petrochemical Plants: Measures hazardous or corrosive liquids with high accuracy.
Food and Beverage Industry: Ideal for hygienic and clean-in-place (CIP) applications.
Cooling and Lubrication Systems: Offers level control for cooling circuits and lubrication tanks in machinery.
Why Choose the Endress+Hauser FTL31-3VL1/0 Limit Switch
Proven Brand Reliability: Endress+Hauser is a world-leading process instrumentation company with high-performance sensors and switches.
Low Maintenance & High Durability: No calibration drift or mechanical wear due to solid-state construction.
Versatility: Performs well across a spectrum of liquids — from water to viscous oils.
Safety & Compliance: Engineered in line with international safety and industrial standards.
Cost-Effective Solution: Saves downtime and maintenance costs while improving process reliability.














