Oval Gear Flow Meter: Why It Still Dominates High-Viscosity Flow Measurement in Modern Automation
The Quiet Persistence of Oval Gear Flow Meters In an era where smart sensors, digital twins, and AI-driven instrumentation dominate...
- Schedule. Mon - Sat 09.00 - 20.00
Level Switchs
Tuning Fork Level Switch
Reliable point level detection for liquids, powders, and solid materials in industrial processes
Stable level switching independent of flow, bubbles, or material properties
Industrial-grade design for continuous operation
Suitable for liquids, powders, and granular solids
OEM / ODM and configuration options available
Designed for long-term, low-maintenance operation
A practical and proven solution for tank, silo, and process level control.
In industrial environments, level switches often fail due to false triggering, material variation, or frequent maintenance requirements. Instrava’s tuning fork level switch is designed to address these common challenges.
Designed for continuous operation in harsh industrial environments
Reduced maintenance frequency compared with mechanical or optical switches
Stable and repeatable output signals for PLC and control systems
Independent of conductivity, dielectric constant, or flow conditions
Proven performance across multiple industrial applications
By focusing on lifecycle stability rather than short-term cost, this solution helps reduce operational risk and total cost of ownership.
Liquid Level Switch Description
Tuning Fork Level Switch Engineering & Technical Selection
Measurement Principle
The tuning fork level switch uses a piezoelectric resonant system. Under free vibration, the fork oscillates at a fixed frequency. When material contacts the fork, vibration amplitude and frequency change due to damping, triggering a stable switching signal.
Accuracy & Reliability
Resonance-based detection ensures consistent switching behavior
Adjustable delay time prevents false alarms during filling or discharge
Suitable for variable process conditions without recalibration
Output & Integration
Relay output compatible with standard industrial control systems
LED indicators display fork vibration and output status, simplifying commissioning
Installation Considerations
Threaded or flanged mounting options
Rod length selectable to match tank, silo, or pipeline geometry
Tuning Fork Level Switch Applications & Industry Solutions
Water & Wastewater Treatment
Used for high and low level protection in tanks, channels, and treatment units where flow and turbulence are present.
Chemical Processing
Reliable point level detection in aggressive or variable media, independent of electrical properties.
Food & Bulk Material Handling
Suitable for powders and granular solids in silos and hoppers, supporting automated material control.
Oil & Gas & Energy
Applied in auxiliary systems and process vessels where stable switching and safety are critical.
OEM Equipment Integration
Commonly integrated into packaged skids, tanks, and process equipment for standardized level control.
Liquid Level Switch Parameter
Tuning Fork Level Switch Technical Specifications
| Parameter | Specification |
|---|---|
| Applicable Media | Liquid, Powder, Particle |
| Rod Length | Standard 250 mm; optional 100–3000 mm |
| Rod Material | SS304, SS316L |
| Medium Temperature | –40 ℃ to +130 ℃ |
| Ambient Temperature | –20 ℃ to +70 ℃ |
| Working Pressure | ≤ 2.5 MPa |
| Medium Density | Particle ≥ 0.1 g/cm³; Liquid ≥ 0.7 g/cm³ |
| Particle Diameter | ≤ 10 mm |
| Signal Output | Relay output, 3A / 220 VAC |
| Delay Time | 1–60 s adjustable |
| Process Connection | G1″, G3/4″ thread or flange (customizable) |
| Enclosure Rating | IP65 |
Instrava OEM/ODM
Instrava Engineering & Customization Support
At Instrava, our instruments are developed with a strong focus on real industrial applications. Each product is designed to operate as a reliable component within measurement, control, and automation systems, rather than as a standalone device.
Our engineering team supports customers during product selection by evaluating process conditions, operating environments, and system requirements, ensuring stable and long-term performance in actual use.
In addition to standard configurations, Instrava offers flexible customization options, including measurement range, materials, output signals, communication interfaces, and installation methods. All custom solutions are engineered to meet industrial standards and application-specific demands.
We also support OEM projects and system integration, providing consistent product design, technical documentation, and long-term supply to ensure smooth integration and reliable operation throughout the project lifecycle.
Related Product Recommendations
Tuning fork level switches are commonly used for point level detection in tanks, silos, and pipelines handling liquids, powders, and granular solids. They are suitable for industrial processes where stable switching is required regardless of flow or material properties.
The switch operates based on vibration resonance. When material contacts the tuning fork, vibration amplitude and frequency change due to damping, which is detected by internal electronics and converted into a reliable switching signal.
Yes. This tuning fork level switch is designed for use with liquids, powders, and particulate solids, provided the minimum density requirements are met, making it suitable for multi-process industrial environments.
No. The resonance-based measurement principle ensures stable operation independent of flow conditions, bubbles, turbulence, conductivity, or dielectric constant of the medium.
Customization options include rod length, wetted material selection, process connection type, output configuration, and delay time settings to match specific installation and application requirements.
Yes. Instrava provides engineering support, OEM/ODM services, and long-term supply stability, making this tuning fork level switch suitable for standardized equipment and multi-site industrial projects.
Why Choose Instrava
By choosing Instrava, you gain a partner with a deep understanding of industrial applications and the expertise to meet today’s operational challenges.
Our role extends beyond products—we support your success through dependable solutions and long-term commitment.
Engineering-Driven Innovation
Innovation at Instrava is guided by real industrial requirements. We continuously refine our technologies to address evolving operational challenges, ensuring practical and reliable performance in demanding environments.
Application-Specific Customization
We provide engineering-level customization to match specific process conditions. From measurement range and materials to output signals and installation options, our solutions are configured to fit real applications.
Proven Quality and Reliability
Quality and reliability are fundamental to every Instrava product. Manufactured under strict quality control and thoroughly tested, our instruments deliver accurate, stable, and long-term performance.
Global Capability with Local Support
Instrava combines global engineering expertise with responsive local support, ensuring our partners benefit from internationally aligned technology and timely regional service.
Comprehensive Product Portfolio
Our broad portfolio of measurement and control instruments enables us to address a wide range of industrial needs, providing integrated solutions from a single, reliable source.
Partner-Oriented Engineering Support
We work closely with our partners from technical consultation to after-sales support. Our focus is on delivering solutions that create lasting value and support long-term operational success.
Portable Ultrasonic Flow Meters – Accurate Industrial Flow Measurement
Portable Ultrasonic Flow Meters – Accurate Industrial Flow Measurement | Instrava Portable Ultrasonic Flow Meters Overview Portable ultrasonic flow meters...
How to Choose Between Portable and Wall-Mounted Ultrasonic Flow Meters for Industrial Applications
In industrial environments where pipeline shutdown, pipe cutting, or process interruption is not feasible, non-intrusive flow measurement has become an...
