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- Bently Nevada
- 330903-04-13-10-12-CN
- 3300 XL NSv Proximity Probe
- USA
- 8 mm
- 0.18kg
- Xiamen, China
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Bently Nevada 330903-04-13-10-12-CN Proximity Probe Product Introduction, Technical Parameters and Application Guide
1. Product Introduction
The Bently Nevada 330903-04-13-10-12-CN is a high-precision proximity probe designed for monitoring the operating condition of critical rotating machinery. It belongs to the 3300 XL 8 mm Proximity Transducer System Series, which is widely used for shaft vibration measurement, radial displacement monitoring, and machinery protection applications.
The probe uses advanced eddy current sensing technology to perform accurate non-contact measurement between the probe tip and the rotating shaft. By continuously measuring changes in the distance between the probe and the shaft surface, it provides reliable information about shaft movement and machine operating conditions.
The 330903-04-13-10-12-CN is designed for industrial environments where stable measurement, high reliability, and long service life are required. It is commonly installed on high-value rotating equipment such as steam turbines, gas turbines, compressors, generators, motors, and industrial pumps.
This model provides essential monitoring data for predictive maintenance systems. It helps identify abnormal machine conditions including excessive vibration, rotor displacement, mechanical looseness, shaft misalignment, and bearing-related problems before they lead to serious equipment damage.
The compact 8 mm sensing design allows installation in areas with limited space while maintaining excellent measurement performance and signal stability.
2. Product Brand and Series Information
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Series | 3300 XL 8 mm Proximity Transducer System Series |
| Product Category | Proximity Probe |
| Sensor Type | Eddy Current Displacement Sensor |
| Measurement Principle | Non-contact electromagnetic sensing |
| Main Function | Shaft vibration and displacement measurement |
| Installation Method | Threaded mounting installation |
| Application Area | Rotating machinery condition monitoring |
| Typical Equipment | Turbines, compressors, generators, motors, pumps |
3. Model Number Explanation
The model number 330903-04-13-10-12-CN represents a specific configuration of the 3300 XL 8 mm proximity probe family.
| Model Code | Description |
|---|---|
| 330903 | 3300 XL 8 mm proximity probe product family |
| 04 | Probe configuration identification |
| 13 | Mechanical installation configuration |
| 10 | Probe length configuration |
| 12 | Cable and connector configuration |
| CN | Special configuration identifier |
The configuration code defines the probe mechanical structure, installation method, cable arrangement, and application characteristics.
This configuration allows the probe to be adapted to different machine layouts, mounting requirements, and monitoring system designs.
4. Detailed Technical Parameters
| Parameter | Specification |
|---|---|
| Model | 330903-04-13-10-12-CN |
| Product Type | Proximity Probe |
| Product Series | 3300 XL 8 mm Proximity Transducer System Series |
| Brand | Bently Nevada |
| Sensor Technology | Eddy current sensing technology |
| Measurement Principle | Non-contact displacement measurement |
| Probe Diameter | 8 mm |
| Measurement Target | Conductive rotating shaft surface |
| Measurement Function | Shaft vibration, radial displacement, shaft position monitoring |
| Measurement Range | Approximately 2 mm linear operating range |
| Output Signal | Displacement proportional electrical signal |
| Frequency Response | Suitable for dynamic vibration measurement |
| Operating Temperature Range | Approximately -35°C to +177°C |
| Storage Temperature Range | Approximately -50°C to +120°C |
| Probe Housing Material | Industrial corrosion-resistant metal construction |
| Cable Configuration | Integrated cable assembly |
| Connector Type | Industrial signal connector |
| Mounting Method | Threaded installation |
| Environmental Capability | Suitable for high vibration and industrial temperature environments |
| Calibration | Factory calibrated for monitoring system compatibility |
| Dimensions | Probe diameter approximately 8 mm; compact cylindrical structure; overall length depends on configuration |
| Weight | Approximately 0.18 kg ( ) |
5. Product Structure and Working Principle
The 330903-04-13-10-12-CN consists of four main sections:
- Sensing probe tip.
- Protective probe housing.
- Integrated cable assembly.
- Electrical connection interface.
The probe operates using eddy current sensing technology.
When the sensor is energized, it creates a high-frequency electromagnetic field around the probe tip. When the rotating shaft moves, the gap between the shaft and probe changes, causing variations in the electromagnetic field.
These changes are converted into electrical signals representing the actual shaft displacement.
The monitoring system analyzes these signals to evaluate machine condition and determine whether abnormal operating conditions exist.
The non-contact measurement method provides:
- No physical contact with rotating parts.
- Reduced mechanical wear.
- Stable measurement performance.
- Long operating life.
- Reliable operation under continuous conditions.
6. Product Applications
6.1 Steam Turbine Monitoring
Steam turbines require accurate monitoring because rotor movement directly affects equipment safety and efficiency.
The proximity probe is used for:
- Shaft vibration measurement.
- Rotor displacement monitoring.
- Turbine protection systems.
- Mechanical condition analysis.
It helps detect:
- Rotor imbalance.
- Shaft misalignment.
- Bearing degradation.
- Mechanical looseness.
6.2 Gas Turbine Monitoring
Gas turbines operate under high-speed and high-temperature conditions.
The product is suitable for:
- Rotor position monitoring.
- Vibration trend analysis.
- Turbine protection.
- Preventive maintenance systems.
6.3 Compressor Monitoring
Large compressors require reliable condition monitoring during continuous operation.
Applications include:
- Shaft vibration measurement.
- Rotor movement detection.
- Mechanical fault identification.
- Maintenance planning.
6.4 Generator Monitoring
Generators depend on accurate shaft monitoring to maintain reliable operation.
Typical applications:
- Shaft displacement measurement.
- Rotor stability monitoring.
- Vibration analysis.
- Equipment protection.
6.5 Motor and Pump Monitoring
Industrial motors and pumps use proximity monitoring to maintain stable operation.
Applications include:
- Shaft movement measurement.
- Vibration monitoring.
- Alignment condition checking.
- Equipment reliability improvement.
7. Product Advantages
7.1 High Measurement Accuracy
The probe provides accurate displacement measurement, allowing monitoring systems to detect small shaft movement changes.
This improves early fault detection and helps prevent unexpected equipment failures.
7.2 Non-Contact Measurement Technology
The sensor does not physically touch the rotating shaft.
Main advantages:
- No mechanical friction.
- Reduced maintenance requirements.
- Longer service life.
- Suitable for high-speed operation.
7.3 Stable Performance Under Industrial Conditions
The probe is designed for demanding operating environments.
It maintains reliable performance under:
- Continuous vibration.
- Temperature changes.
- Long operation cycles.
- Industrial mechanical stress.
7.4 Compact Installation Capability
The 8 mm probe design provides flexibility when installation space is limited.
Benefits include:
- Easy installation.
- Flexible mounting.
- Convenient replacement.
- Compatibility with various machines.
7.5 Supports Predictive Maintenance
The probe continuously provides machine condition information.
Benefits include:
- Reduced downtime.
- Improved equipment reliability.
- Better maintenance planning.
- Increased operational safety.
8. Recommended Same Series or Related Models
| Model | Product Series | Main Parameters | Dimensions | Weight kg ( ) | Application |
|---|---|---|---|---|---|
| 330903-04-13-10-12-05 | 3300 XL 8 mm Series | Standard 8 mm proximity probe, vibration and displacement monitoring | Diameter 8 mm, cylindrical probe structure | 0.18 kg ( ) | General rotating machinery |
| 330903-04-13-05-12-05 | 3300 XL 8 mm Series | Similar configuration with shorter probe length | Diameter 8 mm, compact structure | 0.17 kg ( ) | Turbine monitoring |
| 330903-01-07-10-12-05 | 3300 XL 8 mm Series | Industrial proximity probe configuration, stable signal output | Diameter 8 mm | 0.18 kg ( ) | Compressor applications |
| 330903-02-16-05-02-00 | 3300 XL 8 mm Series | Alternative mechanical configuration, standard sensing performance | Diameter 8 mm | 0.15 kg ( ) | Industrial machinery |
| 330930-040-00-00 | 3300 XL Extension Cable Series | Signal extension cable for proximity probe systems | Cable length varies | 0.25 kg ( ) | Remote installation |
9. Recommended Popular Models from the Same Brand
| Model | Product Series | Main Parameters | Dimensions | Weight kg ( ) | Application |
|---|---|---|---|---|---|
| 3300 XL 8 mm Proximity Probe | 3300 XL Series | 8 mm sensing element, accurate shaft displacement monitoring | Diameter 8 mm | 0.15 kg ( ) | Turbines and compressors |
| 3300 XL 11 mm Proximity Probe | 3300 XL Series | Larger sensing diameter for special measurement requirements | Diameter approximately 11 mm | 0.20 kg ( ) | Large rotating equipment |
| 3300 XL Extension Cable | 3300 XL Series | Stable industrial signal transmission cable | Various cable lengths | 0.25 kg ( ) | Probe connection systems |
| 3500/42M Proximity Monitor | 3500 Machinery Protection System Series | Multi-channel vibration and displacement monitoring module | Standard rack mounting structure | 1.20 kg ( ) | Machinery protection |
| 3500/25 Enhanced Keyphasor Module | 3500 Machinery Protection System Series | Rotor speed and phase reference measurement module | Standard rack size | 0.90 kg ( ) | Speed and phase monitoring |
10. Product Selection Guide
| Application Requirement | Recommended Model |
|---|---|
| Standard shaft vibration monitoring | 330903-04-13-10-12-CN |
| Compact installation requirements | 3300 XL 8 mm Proximity Probe Series |
| High-speed rotating equipment | 3300 XL 8 mm and 11 mm Probe Series |
| Remote sensor installation | 3300 XL Extension Cable Series |
| Complete machinery protection system | 3500 Machinery Protection System Series |
11. Product Summary
The Bently Nevada 330903-04-13-10-12-CN is a precision proximity probe designed for reliable monitoring of critical rotating machinery.
As part of the 3300 XL 8 mm Proximity Transducer System Series, it provides accurate shaft vibration and displacement measurement using advanced eddy current sensing technology.
The product combines high measurement accuracy, non-contact operation, compact structure, stable signal performance, and strong environmental adaptability.
It is suitable for industries where continuous machine monitoring, equipment protection, and predictive maintenance are required.
The 330903-04-13-10-12-CN helps improve machinery reliability, reduce unexpected failures, optimize maintenance strategies, and maintain safe and efficient operation of industrial equipment.