Endress+Hauser Liquipoint FTW31-A2A5AA0A

Conductive Point Level Switch

The Endress+Hauser FTW31-A2A5AA0A is a rod-type conductive point level switch from the Liquipoint T series, designed for reliable limit detection in conductive liquids with a minimum conductivity of 10 µS/cm . It enables multiple point detection (up to 5 switch points) with a single probe, making it ideal for overfill protection, dry-run protection, and pump two-point control .

Key Features and Product Highlights

• Multiple Point Detection: A single probe can detect up to 5 independent level points, reducing installation complexity 

• No Calibration Required: Factory-preset for most common conductive liquids; no on-site adjustment needed 

• Robust, Maintenance-Free Design: No moving parts ensures long service life with no wear or blockages 

• Wide Application Range: Suitable for overfill protection, dry-run protection, two-point pump control, and leak detection 

• WHG Approval: Certified for overfill prevention and leakage detection applications 

• Extended 5-Year Warranty: Part of Endress+Hauser's Fundamental Selection product line 
  
  

Technical Specifications

Applications

• Overfill Protection: Prevents tank overflow in storage vessels 

• Dry-Run Protection: Safeguards pumps in lubrication and cooling circuits 

• Two-Point Pump Control: Simple pump control with MAX and MIN detection 

• Leakage Detection: Monitors for leaks in secondary containment 

• Multiple Point Detection: Single probe with up to 5 independent switch points 

Why Choose the Endress+Hauser FTW31?

• Cost-Effective Solution: One probe replaces multiple sensors for multi-point applications 

• Easy Commissioning: No calibration required—simply install and operate 

• High Reliability: No moving parts eliminates wear and maintenance costs 

• Global Approvals: WHG, ATEX, and IECEx certified for worldwide deployment 

• Investment Protection: 5-year warranty ensures long-term reliability