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The Compact Vibrating Fork Level Switch is a versatile and reliable device designed for detecting both solid and liquid materials in industrial applications. Featuring a fork-shaped sensor that vibrates at a specific frequency, the switch detects changes in vibration when it comes into contact with materials, signaling the presence or absence of the substance.
This switch is constructed to endure harsh conditions, making it suitable for a wide range of industries, including food processing, pharmaceuticals, chemicals, and wastewater management. Its compact design allows for easy installation in tight spaces, while its robust construction ensures long-lasting performance. With minimal maintenance needs, it offers fail-safe operation to prevent overflow and enhance process safety, making it an essential tool for maintaining optimal levels in tanks, silos, and hoppers for both solids and liquids.
All liquids from free-flowing to viscosity up-to 10,000cP.
Suitable for side as well as top mounting.
Flow/No-Flow detection in pipe-lines.
Minimum and maximum fail safe field selectable.
Process temperature max 150 ºC.
Process pressure max. 15 bar.
Compact size.
Universal industrial power supply (15 to 80 VDC & 15 to 260 VAC).
Low power consumption.
No calibration required.
Various customized process connections like Threaded/Flanged/TC etc starting form 1/2″.
External test option using magnet test key.
Electronics of LFV11 excites the piezo-electric-crystals inside the tuning fork, which makes the fork tines vibrate at their natural resonance frequency in free air.
When the fork tines are immersed in liquid, the frequency of fork vibration falls due to the density of liquid.
This change in frequency is detected by the electronic circuit. Liquid presence is thus detected.
A Vibrating Fork Level Switch for liquids is designed to provide reliable point-level detection in tanks, vessels, and pipelines. It uses a vibrating tuning fork that changes its frequency when it comes into contact with a liquid. This change is detected by the electronics, which then trigger an output signal.
The device can be used with a wide range of liquids, including water, chemicals, oils, solvents, beverages, and viscous liquids with viscosities up to 10,000 cP. Since it operates based on vibration frequency rather than conductivity, it performs consistently across different liquid types.
Common applications include:
Its compact design, low maintenance requirements, and dependable operation make it a practical choice for high-level and low-level detection in industrial processes.
The Vibrating Fork Level Switch is also suitable for detecting bulk solids, powders, and granular materials. When the vibrating fork comes into contact with solid material, the vibration characteristics change, allowing the instrument to accurately identify the presence of material.
Industries use these switches to prevent silo overfilling, monitor hopper levels, and maintain smooth material handling operations.
Typical solid materials include:
The robust sensing technology provides reliable switching performance even in dusty environments where traditional mechanical level sensors may require frequent maintenance.
|
Parameter |
Specification |
|
Technology |
Vibrating Fork / Tuning Fork |
|
Supply Voltage |
15 to 80 VDC & 15 to 260 VAC |
|
Process Temperature |
Up to 150°C |
|
Process Pressure |
Up to 15 Bar |
|
Mounting Options |
Side Mounting & Top Mounting |
|
Process Connection |
Threaded, Flanged, Tri-Clamp (TC) |
|
Medium |
Liquids, Powders & Granules |
|
Viscosity Range |
Up to 10,000 cP |
|
Calibration |
Not Required |
|
Output |
Level Detection Signal |
|
Wetted Material |
Stainless Steel Construction |
Vibrating fork technology offers several practical advantages for industrial level monitoring applications.
The sensor is factory configured and typically does not require field calibration, reducing setup time and maintenance effort.
The switching principle is based on vibration frequency changes, enabling dependable detection of liquids and solids.
Its compact construction allows installation in tanks, vessels, and pipelines where space is limited.
With no moving mechanical parts, the sensor requires minimal maintenance and delivers consistent performance over time.
The switch is designed to operate in demanding environments involving dust, moisture, chemicals, pressure, and elevated temperatures.
Suitable for both side and top mounting configurations across a wide range of process applications.
Levtron is a manufacturer of vibrating fork level switches designed for reliable point-level detection in industrial applications. Our products are used across industries such as water treatment, chemicals, pharmaceuticals, food processing, plastics, and bulk material handling.
The switches are engineered to provide dependable performance while minimizing maintenance requirements. With support for multiple process connections and mounting options, they can be integrated into a variety of tanks, silos, hoppers, and process vessels.
Whether the application involves liquids, powders, or granules, Levtron offers practical level measurement solutions designed to support safe and efficient operations.
Choosing the right level switch is important for process safety and operational efficiency. Levtron focuses on delivering reliable products backed by industry experience and technical support.
Designed and supplied from India to meet the needs of local and international industries.
Available with threaded, flanged, and tri-clamp process connections to suit different installation requirements.
Built using durable materials suitable for demanding process conditions involving temperature, pressure, and corrosive environments.
Our team assists customers with product selection, installation guidance, and application-specific recommendations.
Suitable for liquid level detection, solid level monitoring, overflow prevention, dry-run protection, and flow/no-flow indication.
A Vibrating Fork Level Switch is a point-level sensing device that detects the presence or absence of liquids and solids by monitoring changes in the vibration frequency of a tuning fork.
Piezoelectric crystals cause the fork to vibrate at its natural frequency. When the fork comes into contact with material, the vibration changes. The electronics detect this change and generate an output signal.
Yes. It can detect powders, granules, pellets, and other bulk solid materials in silos, hoppers, and storage bins.
Yes. It is suitable for water, chemicals, oils, beverages, and many other liquid media.
In most applications, no calibration is required, making installation and commissioning straightforward.
The Compact Vibrating Fork Level Switch can operate at process temperatures up to 150°C.
Common industries include food processing, pharmaceuticals, chemicals, wastewater treatment, plastics, cement, and bulk material handling.
The switch can be installed using side mounting or top mounting configurations in tanks, vessels, hoppers, silos, and pipelines, depending on the application requirements.