Introduction:
The Standard Vibrating Rod Level Switch is engineered for precise detection of solid materials in various industrial applications. It features a rod-shaped sensor that vibrates at a specific frequency; when the rod comes into contact with solid materials, the vibration frequency changes, triggering an alert or control action. This design ensures reliable performance in monitoring levels of free-flowing powders and granules.
Applications
- Bulk Material Handling: Monitoring levels of powders and granules in silos and hoppers.
- Food Processing: Detecting levels of ingredients such as flour, sugar, and grains.
- Chemical Manufacturing: Measuring levels of powdered chemicals in storage tanks.
- Pharmaceuticals: Ensuring accurate levels of powdered substances in production processes.
- Plastics Industry: Monitoring plastic granules in storage and processing equipment.
Key Features
- Mounting Flexibility: Suitable for both side and top mounting configurations.
- Fail-Safe Operation: Field-selectable minimum and maximum fail-safe settings enhance safety.
- Temperature and Pressure Resilience: Operates effectively at process temperatures up to 200°C and pressures up to 15 bar.
- Compact Design: Allows for installation in space-constrained environments.
- Universal Power Supply: Compatible with a wide range of industrial power supplies (15 to 80 VDC & 15 to 260 VAC).
- Low Power Consumption: Designed for energy-efficient operation.
- No Calibration Required: Simplifies setup and reduces maintenance efforts.
- Customizable Process Connections: Offers options like threaded, flanged, and hygienic connections to suit various applications.
- Adjustable Switching Delay: Standard feature allows for settable switching delay to prevent false alarms.
- Remote Electronics Option: Available upon request for applications requiring remote monitoring.
- Explosion-Proof Version: Suitable for gas group IIC, T6 as per IEC 60079-1-2007 & IEC 600529-2001 standards.
Working Principle
The vibrating rod level switch operates as a single-element tuned mechanical device. The electronics excite piezo-electric crystals inside the tuning rod, causing it to vibrate at its natural resonance frequency in free air. When material contacts the rod, the vibration stops as the resonance is disturbed. The electronics detect this change in amplitude, indicating the presence of material.