Tube-11 High-Temperature Vibrating Rod Level Switch
Tube-11 High-Temperature Vibrating Rod Level Switch is built specifically for higher process temperatures up to 250°C (482°F).
The Tube-11 High-Temperature Vibrating Rod Level Switch is specifically engineered to withstand process temperatures up to 250°C (482°F).
For more demanding applications, the Ultra High-Temperature version is also available, designed to operate in extreme conditions with process temperatures reaching up to 400°C (752°F). This versatility makes Tube-11 an excellent choice for challenging industrial environments.
Incorporating a unique double-rod probe design, it effectively prevents material buildup on the probe, ensuring reliable and consistent operation.
This high-temperature model is an enhancement of the standard Tube-11, featuring an added extension tube between the housing and the process connection, as well as high-temperature-resistant piezoelectric components and wiring. It is particularly suitable for high and low-level detection in light, fluffy materials.
The operating principle of the high-temperature Tube-11 model remains identical to the standard Tube-11 model. Structurally, the high-temperature version incorporates an extension tube between the housing and the process connection. This extension reduces the temperature within the housing to a safe range, ensuring compatibility with the tolerances of the electronic components.
Furthermore, all piezoelectric components responsible for driving and detecting vibration are made from high-temperature-resistant materials, including specialized ceramics, electrodes, wires, and encapsulants. These advanced design features guarantee the reliable operation of the instrument under process temperature conditions of up to 250°C (482°F).
● The Tube-11 Vibrating Rod Level Switch stands as the first made-in-China level switch designed with a robust double-rod vibration structure, offering unparalleled performance in solid and interface level detection applications. Key features include:
● High Sensitivity: Precision tuning of resonant vibration frequency enables reliable detection of granular bulk solids, including fine particles with densities as low as 0.02 g/cm³.
● Wide Temperature Tolerance: Designed for demanding environments, the Tube-11 operates at process temperatures up to 250°C (482°F) and can handle ultra-high temperatures up to 400°C (752°F) with water or air cooling techniques.
● Precipitates Interface Detection: Delivers exceptional performance in measuring separation layers (interfaces) within liquids.
● Buildup Resistance: Enhanced redundancy ensures reliability even with viscous and adhesive media, minimizing maintenance issues.
● Self-Diagnostic Capability: Advanced fault detection and localization provide reliable performance and easy troubleshooting.
● Robust Double-Rod Design: Highly durable and abrasion-resistant, the double-rod structure ensures long-term stability and performance.
● Independence from Material Variations: Unaffected by changes in product properties, ensuring maintenance-free operation in diverse applications.
● Customization Options: Multiple configurations available, including specialized versions for liquid interface detection.
Ease of Use: Simple installation and no need for calibration make the Tube-11 highly user-friendly.
● Certifications and Protections: Features CE certification, flameproof and intrinsic safety certifications for gas and dust (Ex d IIC T6–T1 Gb, Ex tD A21 IP66 T80–440°C, Ex ia IIC T6–T1 Ga, Ex iaD 20 T85–450°C), and IP66/IP67 ingress protection.
● Corrosion Resistance: Equipped with a high-strength anti-corrosion probe made from 316L stainless steel and 318 S13 alloy.
| Applicable medium | Types of the medium | Granular or powdery solids ① |
| Density | ≥0.02g/cm³ | |
| Probe data | Vibration frequency | ~ 360Hz |
| Probe length | 125mm | |
| Probe diameter | 16mm | |
| Switching Delay | When immersed | 0.5s |
| When laid bare | 1s | |
| Power Supply | Relay | 20～253V AC/20～72V DC |
| Two-wire | 10～36V DC | |
| Max. Power consumption | 8VA(AC)； 1.5W(DC) | |
| Output | Relay | DPDT，5A/253V AC/24V DC |
| Two-wire | 8mA/16mA，Alarm <2.3mA | |
| Installation conditions | Process pressure | -1～16bar |
| Process temperature | Regular temperature: -50～150℃ High temperature: -50～250℃ Ultra-high temperature: -50～400℃ | |
| Ambient temperature | -40～80℃ | |
| Storage and transport temperature | -40～80℃ | |
| Cooling system data (for Ultra-high temperature only） | Air intake tube | 6×4 (Outer diameter 6mm) PU tube |
| Cooling air pressure | 0.8Mpa | |
| Min. cooling air flow rate | To be adjusted② | |
| Overvoltage protection | Relay | Category III, class I |
| Two-wire | Category III, class II | |
| Certificates and approvals | Ingress Protection | IP66/IP67 |
| Explosion-Proof | Flameproof Enclosure:：Ex d IIC T6～T1 Gb, Ex tD A21 IP66 T80～440℃ Intrinsic Safety：Ex ia IIC T6～T1 Ga, Ex iaD 20 T85～450℃ | |
| CE | LVD and EMC Certificates | |
| Materials | Housing | Aluminum alloy, stainless steel |
| Ground terminal | 316L | |
| Process connection | 316L | |
| Probe | 316L, 318 S13 | |
| Process seal | Klingersil C-4400 |
② Cover exhaust nozzle with whistle from instrument accessories and position the whistle such that whistle’s internal wall at its vent side is tightly attached to the external wall of exhaust nozzle, slowly increase the flow of cooling air until whistle blows up. This is when cooling air is at the expected minimum flow.
The Jiwei Tube-11 Vibrating Rod Level Switch offers exceptional reliability and versatility for level measurement across a range of challenging applications, including those in power plants and industrial settings. Below are specific use cases demonstrating its capabilities:
Power Plant Applications
- Silo with CaSO₄ and CaSO₃ Mixtures:
The Tube-11 addresses medium buildup issues effectively due to its larger redundancy. Its ability to operate independently of dielectric constant fluctuations ensures consistent performance, even with humidity-induced variations in the material’s dielectric properties. - Environment-Friendly Fuel Tanks:
Tube-11 reliably detects light and fluffy materials like sawdust or straw, which have densities as low as 0.1 g/cm³, far below the detection range of most level switches. Its sensitivity extends to materials with densities as low as 0.02 g/cm³, making it ideal for this application. - Ash Transport System Components:
With a 125mm probe, Tube-11 minimizes exposure to impacts during material filling, ensuring long-term durability in electrostatic precipitator bags, ash hoppers, and conveying pumps.
Industrial Applications
- Alumina Silos:
Alumina’s lumpy particles, strong magnetic fields, and harsh environments demand robust solutions. Tube-11 withstands these conditions, providing maximum reliability even under extreme circumstances. - Coal Bunkers and Fly Ash Silos:
Designed for abrasive environments, Tube-11 ensures accurate level detection and longevity in coal bunker and ash collection systems. - PVC Granule Storage and Chemical Plant Silos:
Its adaptability allows reliable performance in the storage and handling of PVC granules and other chemical products. - Activated Carbon and Glass Fragments:
Tube-11 is capable of handling challenging materials like activated carbon and sharp glass fragments, proving its robustness and wide applicability.
High-Temperature Applications
- Powders and Particles up to 250°C or 400°C:
Tube-11’s ability to withstand process temperatures as high as 250°C or 400°C ensures consistent operation in extreme conditions without compromising accuracy.
