Endress+Hauser Liquiphant FTL41 Vibronic Point Level Switch (Order Code: FTL41-AAA2AAAAA2CJAAAAJ)

The Endress+Hauser FTL41-AAA2AAAAA2CJAAAAJ is a compact vibronic point level switch from the Liquiphant series, featuring a 1000 mm (1 m) tube extension for reliable liquid level detection in tanks, vessels, and pipes . With over 6 million units installed globally, this fundamental device delivers proven reliability for overfill protection, pump dry-run protection, and two-point control applications .

Key Features and Product Highlights

• Vibronic Tuning Fork Technology: No mechanical moving parts eliminates wear and ensures maintenance-free operation; switching is independent of conductivity, foam, turbulence, or flow .

• 1000 mm Tube Extension: Extended sensor length allows installation in deeper vessels or through tank nozzles; maximum tube length up to 2 m (6 ft) .

• Wide Temperature and Pressure Range: Operates from -40°C to +150°C and handles vacuum up to 40 bar (580 psi) .

• 316L Stainless Steel Wetted Parts: Corrosion-resistant construction suitable for aggressive liquids and hygienic applications .

• Plug-and-Play Operation: No calibration required; factory preset for liquids with density ≥0.5 g/cm³ (0.4 g/cm³ optional) .

• Comprehensive Certifications: ATEX, IECEx, CSA, WHG overfill protection, and marine approvals (ABS, LR, BV, DNV) .

• Active Sensor Technology: Continuous self-monitoring ensures safe switching even during power supply fluctuations .

Order Code Interpretation: FTL41-AAA2AAAAA2CJAAAAJ

Based on Endress+Hauser's ordering structure, this specific configuration includes:

L=1000MM is specified separately, indicating the tube extension length (1 meter) .

Technical Specifications

Applications

• Overfill Protection: WHG-approved for regulatory-compliant tank overfill prevention 

• Pump Dry-Run Protection: Prevents pump damage in cooling circuits, lubrication systems, and sumps

• Two-Point Pump Control: MIN/MAX level switching for automatic pump operation

• Chemical Industry: Reliable detection in aggressive liquids with 316L wetted parts

• Food & Beverage: Hygienic applications with Tri-Clamp process connections (optional) 

• Water & Wastewater: Level monitoring in treatment plants, pumping stations, and storage tanks

Why Choose the Endress+Hauser FTL41?

• Plug-and-Play Simplicity: No calibration or on-site adjustment required; factory preset for most liquids 

• No Moving Parts: Maintenance-free operation with exceptional long-term stability compared to float switches 

• Universal Liquid Compatibility: Works with all pumpable liquids, regardless of conductivity or foam 

• Global Approvals: ATEX, IECEx, WHG, and marine certifications enable worldwide deployment 

• Proven Reliability: Over 6 million units in service globally 
  
  

  

Leave a message for product

Title

Contact

Tel

Content

Verify Code

Click to change

Note：1. Shortcut key for send message :Alt+s or Ctrl+Enter!
2. If necessary, please leave your detail contact!