Name: FTL50 Vibronic Tuning Fork Level Switch with HART Protocol
Brand: Xi'an Xiyi Central Control Technology Co., Ltd.
SKU: FTL50
Price: 500 USD
Availability: InStock

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FTL50 Vibronic Tuning Fork Level Switch with HART Protocol

Vibronic tuning fork level switch

HART protocol level transmitter

FTL50 level switch with warranty

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:

Vibronic tuning fork level switch

HART protocol level transmitter

FTL50 level switch with warranty

Payment & Shipping Terms

Minimum Order Quantity

1 pc

Price

USD 500

Delivery Time

7-14 days

Payment Terms

T/T

Supply Ability

100 pc

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Product Description

Vibronic Point Level Detection Soliphant FTL50 Tuning Fork 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

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
Principle is independent 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 mode (high for overfill protection/low for pump dry-run protection)
Self-monitoring electronics with NAMUR NE 107 status signal
Wide media compatibility (water, oils, aggressive chemicals)
Maintenance-free operation (no moving parts)
SIL2/3 certified according to IEC 61508

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
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
Ingress protection: IP66/67, NEMA 4X
Explosion protection: ATEX, IECEx, FM, CSA, NEPSI

Applications

Overfill protection in tanks and vessels
Dry-run protection for pumps
Leak detection in pipelines
Safety-critical loops (SIL-rated shutdown)
Ideal for water/wastewater, chemical/petrochemical, oil/gas, food/beverage, and power plants

Model Variants

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, general use
FTL51	Longer fork (extended insertion)	Large tanks, storage vessels	Up to 280°C, 100 bar	For higher temp/pressure
FTL51C	Hygienic design (polished)	Food & Beverage, Pharma	CIP/SIP cleaning, sterile	Stainless steel, hygienic
FTL62/FTL64	Premium series	High-temp/high-pressure, safety-critical	Wider range	SIL 3 certified, advanced diagnostics