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- Bently Nevada
- 330908-00-20-70-02-RU
- 3300 NSv Proximity Probe
- USA
- 8 mm
- 0.08kg
- Xiamen, China
- New & In Stock
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Bently Nevada 330908-00-20-70-02-RU Proximity Probe Product Introduction and Technical Specification
1. Product Overview
The Bently Nevada 330908-00-20-70-02-RU is an industrial-grade proximity probe designed for high-precision vibration and position measurement of rotating machinery. It belongs to the 3300 XL 8 mm proximity probe product family and is widely used in machinery condition monitoring systems where accurate shaft displacement measurement and reliable vibration monitoring are required.
This model uses advanced eddy current sensing technology to provide non-contact measurement between the probe tip and the rotating shaft surface. The design allows continuous monitoring of shaft movement, vibration amplitude, and relative position, making it suitable for critical rotating equipment that requires high operational reliability.
The probe is commonly integrated into machinery protection and predictive maintenance systems. It provides stable measurement signals for monitoring equipment health, identifying mechanical problems, and improving maintenance efficiency.
2. Product Basic Information
| Parameter | Description |
|---|---|
| Product Model | Bently Nevada 330908-00-20-70-02-RU |
| Product Series | 3300 XL 8 mm Proximity Probe Series |
| Product Type | Eddy Current Proximity Sensor |
| Measurement Principle | Non-contact eddy current displacement measurement |
| Application Category | Rotating Machinery Condition Monitoring |
| Measuring Object | Rotating Shaft Displacement and Vibration |
| Probe Diameter | 8 mm |
| Configuration Type | Reverse Mount / Special Configuration |
| Signal Type | Dynamic vibration signal and gap voltage signal |
| Installation Method | Threaded mounting installation |
| Connection Method | Integrated cable connection |
| Monitoring Purpose | Shaft vibration, position measurement, machine protection |
| Operating Environment | Industrial rotating equipment applications |
| Dimensions | Approx. 8 mm probe diameter, cylindrical sensor structure, total length determined by configuration |
| Weight | Approx. 0.08 kg |
3. Detailed Product Parameters
| Parameter | Technical Specification |
|---|---|
| Sensor Technology | Eddy current proximity measurement technology |
| Probe Diameter | 8 mm standard sensing head |
| Measurement Type | Relative shaft vibration and displacement measurement |
| Measurement Range | Suitable for standard 8 mm proximity measurement systems |
| Output Characteristics | Stable proportional output signal according to shaft movement |
| Frequency Response | Designed for high-speed rotating machinery vibration monitoring |
| Signal Stability | High repeatability and long-term measurement stability |
| Temperature Performance | Suitable for industrial temperature environments |
| Mechanical Structure | Compact cylindrical stainless industrial sensor design |
| Installation Thread | Industrial threaded installation configuration |
| Cable Design | Integrated high-performance sensor cable |
| Environmental Resistance | Designed for vibration-intensive industrial environments |
| Maintenance Requirement | Low maintenance operation |
| Dimensions | Approx. 8 mm diameter sensing probe, length varies according to model configuration |
| Weight | Approx. 0.08 kg |
4. Product Structure and Working Principle
The 330908-00-20-70-02-RU operates based on eddy current sensing technology. The probe generates a high-frequency electromagnetic field at the sensing tip. When the rotating shaft approaches or moves away from the probe surface, the electromagnetic field changes.
The internal electronics convert these changes into measurable electrical signals. These signals represent the relative movement between the probe and shaft, allowing monitoring systems to calculate vibration levels, shaft position changes, and mechanical operating conditions.
Because there is no physical contact between the probe and the rotating shaft, the sensor avoids mechanical wear and provides reliable operation during long periods of continuous monitoring.
5. Product Features
5.1 High Precision Shaft Measurement
The probe provides accurate measurement of shaft movement and displacement, allowing operators to monitor small mechanical changes that may indicate equipment problems.
It is suitable for applications requiring precise vibration analysis and early fault detection.
5.2 Non-Contact Measurement Technology
The non-contact sensing method eliminates direct mechanical contact with rotating components. This reduces wear, extends service life, and improves measurement reliability.
The design is especially suitable for high-speed rotating equipment operating continuously for long periods.
5.3 Stable Signal Performance
The product provides consistent output characteristics under normal industrial operating conditions.
Stable signal quality helps improve monitoring accuracy and supports advanced machinery diagnostic systems.
5.4 Industrial Durability
The sensor is designed for demanding industrial environments where vibration, temperature variation, and continuous operation are common.
Its compact structure allows flexible installation in different types of rotating machinery.
6. Product Applications
The Bently Nevada 330908-00-20-70-02-RU is mainly used in industrial machinery monitoring and protection applications.
| Application Field | Equipment Examples |
|---|---|
| Power Generation | Steam turbines, gas turbines, generators |
| Oil and Gas | Compressors, pumps, expansion turbines |
| Petrochemical | Process rotating equipment |
| Industrial Manufacturing | High-speed motors and rotating machines |
| Marine Equipment | Large propulsion and auxiliary machinery |
| Energy Systems | Critical rotating power equipment |
7. Main Application Functions
| Function | Description |
|---|---|
| Shaft Vibration Monitoring | Detects radial vibration changes during operation |
| Shaft Position Measurement | Measures relative shaft movement |
| Equipment Protection | Provides warning signals for abnormal conditions |
| Predictive Maintenance | Supports condition-based maintenance programs |
| Fault Diagnosis | Helps identify imbalance, misalignment, looseness, and mechanical wear |
| Continuous Monitoring | Enables 24-hour equipment condition supervision |
8. Product Advantages
| Advantage | Description |
|---|---|
| High Measurement Accuracy | Provides precise displacement and vibration measurement |
| Reliable Operation | Designed for long-term industrial monitoring |
| Non-Contact Design | Prevents mechanical wear caused by direct contact |
| Strong Environmental Adaptability | Suitable for harsh industrial conditions |
| Long Service Life | Reduced maintenance requirements |
| Excellent Signal Stability | Supports accurate machine diagnostics |
| Compact Installation | Easy integration into existing equipment |
| Wide Compatibility | Suitable for various rotating machinery systems |
9. Brand and Product Series Information
| Category | Information |
|---|---|
| Brand | Bently Nevada |
| Product Family | 3300 XL Monitoring Products |
| Product Series | 3300 XL 8 mm Proximity Probe Series |
| Product Category | Vibration and Position Measurement Sensor |
| Main Function | Rotating Machinery Monitoring and Protection |
| Typical Users | Power plants, industrial plants, process industries |
10. Recommended Related Models from the Same Series
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330908-00-20-70-02-00 | 3300 XL 8 mm Proximity Probe | 8 mm eddy current probe, shaft vibration monitoring | Approx. 8 mm diameter cylindrical probe | 0.08 kg | Turbine and compressor monitoring |
| 330908-00-20-70-02-05 | 3300 XL 8 mm Proximity Probe | High stability displacement measurement | Approx. 8 mm probe diameter | 0.08 kg | Rotating equipment protection |
| 330906-02-12-05-02-05 | 3300 XL 8 mm Proximity Probe | Standard vibration and position monitoring | Approx. 8 mm diameter sensor body | 0.05 kg | General industrial machinery |
| 330907-05-30-10-02-00 | 3300 XL 11 mm Proximity Probe | Larger diameter probe for special applications | Approx. 11 mm diameter structure | 0.10 kg | Large rotating machinery |
| 330930-040-01-00 | Extension Cable Assembly | Signal transmission extension component | Cable length configuration dependent | 0.15 kg | Probe installation extension |
11. Recommended Popular Models from the Same Brand
| Model | Product Type | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330103-00-03-10-02-00 | 3300 Series Proximity Probe | 8 mm sensing technology, vibration measurement | Approx. 8 mm diameter probe design | 0.05 kg | Industrial vibration monitoring |
| 330180-50-00 | Extension Cable | High reliability signal extension cable | Length varies according to configuration | 0.20 kg | Sensor connection systems |
| 3500/42M | Proximity Monitoring Module | Multi-channel vibration and position monitoring | Rack-mounted module structure | 0.80 kg | Machinery protection systems |
| 3500/22M | Communication Interface Module | Data acquisition and monitoring interface | Standard rack module size | 0.75 kg | Industrial monitoring networks |
| 330400-01-05 | Proximity Sensor Component | Shaft vibration and displacement measurement | Compact industrial sensor structure | 0.06 kg | Turbine and compressor systems |
12. Model Selection Recommendation
| Application Requirement | Recommended Model |
|---|---|
| Standard 8 mm shaft vibration monitoring | 330906 series |
| Reverse mount installation requirement | 330908 series |
| Larger shaft measurement application | 330907 series |
| Complete machinery protection system | 3500 monitoring modules |
| Sensor installation extension requirement | 330930 cable series |
13. Product Summary
The Bently Nevada 330908-00-20-70-02-RU is a high-performance 3300 XL 8 mm proximity probe designed for accurate monitoring of rotating machinery conditions.
With its eddy current non-contact measurement technology, stable signal output, compact structure, and reliable industrial performance, the product provides an effective solution for shaft vibration monitoring, displacement measurement, and machinery protection.
The probe is particularly suitable for critical equipment such as turbines, compressors, generators, and large rotating machines. Its advantages include high measurement accuracy, excellent durability, low maintenance requirements, and strong compatibility with industrial condition monitoring systems.
For industries requiring continuous equipment monitoring and predictive maintenance, this model provides a reliable measurement solution to improve operational safety, reduce unexpected downtime, and extend machinery service life.