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Endress Hauser Liquiphant FTL50 Vibronic Level Switch 316L Stainless Steel

Endress Hauser Liquiphant FTL50 Vibronic Level Switch 316L Stainless Steel

Endress Hauser Liquiphant level switch

FTL50 vibronic level transmitter

316L stainless steel level sensor

Place of Origin:

China

Brand Name:

E+H

Model Number:

FTL50

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Product Details
Turndown Ratio:
100:1
Measurement Range:
0-100 Feet
Wetted Materials:
316L Stainless Steel
Protocol:
HART/RS485
Wetted Parts Material:
316L Stainless Steel
Protection:
IP67
Process Connection:
1/2" NPT
Communication Protocol:
HART
Material:
Stainless Steel
Pressure Sensing Element:
Piezoresistive
Warranty:
2 Years
Flange Material:
316SST
Thread:
M18
Weight:
0.5 Kg
Housing Material:
Aluminum
Highlight:

Endress Hauser Liquiphant level switch

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FTL50 vibronic level transmitter

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316L stainless steel level sensor

Payment & Shipping Terms
Minimum Order Quantity
1 pc
Price
USD 500
Delivery Time
7-14 days
Payment Terms
T/T
Supply Ability
100 pc
Product Description
Endress Hauser Liquiphant Float Level Switch FTL50 FTL51 FTL50H FTL51H E+H Vibronic Point Level Switch
Product Specifications
Attribute Value
Turndown Ratio 100:1
Measurement Range 0-100 feet
Wetted Materials 316L stainless steel
Protocol HART/RS485
Protection IP67
Process Connection 1/2" NPT
Communication Protocol HART
Material Stainless steel
Pressure Sensing Element Piezoresistive
Warranty 2 years
Flange Material 316SST
Thread M18
Weight 0.5 kg
Housing Material Aluminum
Product Overview
Working Principle (Vibronic / Tuning Fork)
  • Features a metal tuning fork vibrating at natural resonance (~85 Hz)
  • In air/gas: Fork vibrates freely at higher frequency
  • When liquid covers fork: Vibration dampens, frequency decreases, triggering state change
  • Operates independently of conductivity, dielectric constant, density (≥0.5 g/cm³), and viscosity (≤10,000 mm²/s)
Key Features
  • Compact design for tight spaces, pipes, and small tanks
  • No calibration required - plug-and-play operation
  • Selectable failsafe modes (high for overfill, low for dry-run protection)
  • Self-monitoring electronics with NAMUR NE 107 status signal
  • Wide media compatibility (water, oils, aggressive chemicals)
  • Maintenance-free with no moving parts
  • SIL2/3 certified per IEC 61508 for safety-critical applications
Technical Specifications
  • Measuring task: Point level detection in liquids
  • Process temperature: -40°C to +150°C (standard), up to 280°C (special versions)
  • Process pressure: Up to 40 bar (580 psi)
  • Density limit: ≥0.5 g/cm³ (suitable for light hydrocarbons/solvents)
  • Viscosity range: Up to 10,000 mm²/s
  • Pipe diameter: ≥25 mm
  • Output options: Relay (SPDT), PNP/NPN transistor, 2-wire AC/DC, NAMUR signal, Fieldbus (PROFIBUS PA, FOUNDATION Fieldbus)
  • Protection ratings: IP66/67, NEMA 4X
  • Explosion protection: ATEX, IECEx, FM, CSA, NEPSI
Applications
  • Tank overfill protection and safe shutdown systems
  • Pump dry-run protection
  • Pipeline leak detection
  • SIL-rated safety-critical loops
  • Water & Wastewater treatment
  • Chemical and Petrochemical processes
  • Oil & Gas operations
  • Food & Beverage production (hygienic versions available)
  • Power plant applications
Model Variants Comparison
Model Design Application Temp/Pressure Notes
FTL50 Short fork, compact body Tight spaces, small vessels, pipes -40...150°C, up to 40 bar Standard model for general use
FTL51 Longer fork (extended insertion) Large tanks, storage vessels Up to 280°C, 100 bar Higher temp/pressure capability
FTL51C Hygienic design (polished) Food & Beverage, Pharma CIP/SIP cleaning, sterile EHEDG/3A compliant, FDA materials
FTL62/FTL64 Premium series High-temp/high-pressure, safety-critical Wider range SIL 3 certified, advanced diagnostics
Certifications & Standards
  • Functional Safety: SIL2/3 (IEC 61508)
  • Explosion Protection: ATEX, IECEx, FM, CSA, NEPSI
  • Marine approvals: ABS, BV, DNV GL, LR
  • Hygienic standards: EHEDG, 3A, FDA-compliant materials (FTL51C)
  • Process safety compliance: WHG (German Water Resources Act)

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