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The Bently Nevada 330425-02-05 is a high-precision proximity probe designed for continuous monitoring of rotating machinery conditions, including shaft vibration, displacement, and mechanical position changes. It belongs to the 3300 XL Proximity Probe Series, which is a key product family within the 3300 XL Proximity Transducer System.
The product uses eddy current sensing technology to perform accurate non-contact measurement between the probe tip and the rotating shaft surface. Through electromagnetic field changes, the probe detects shaft movement and converts mechanical displacement into a proportional electrical signal for machinery monitoring systems.
The 330425-02-05 is mainly used in critical industrial equipment where reliability, measurement accuracy, and long-term operation are essential. It is commonly installed on steam turbines, gas turbines, compressors, generators, pumps, and large industrial motors.
This model provides stable monitoring performance under demanding industrial environments and helps maintenance teams evaluate machine operating conditions, identify abnormal vibration behavior, and reduce the risk of unexpected equipment failures.
The probe is designed for applications requiring continuous operation, accurate measurement, and dependable performance in industrial machinery protection systems.
| Item | Description |
|---|---|
| Brand | Bently Nevada |
| Product Series | 3300 XL Proximity Probe Series |
| System Family | 3300 XL Proximity Transducer System |
| Product Type | Proximity Probe with Integrated Cable |
| Model Number | 330425-02-05 |
| Measurement Technology | Eddy Current Non-Contact Sensing Technology |
| Main Function | Shaft displacement and vibration measurement |
| Application Type | Rotating machinery condition monitoring |
| Installation Method | Threaded mechanical mounting |
| Typical Industries | Power generation, industrial machinery, process industries |
| Parameter | Specification |
|---|---|
| Model | 330425-02-05 |
| Product Series | 3300 XL Series |
| Product Type | 8 mm Proximity Probe |
| Sensor Principle | Eddy Current Measurement Technology |
| Measurement Method | Non-contact displacement detection |
| Probe Diameter | Approximately 8 mm |
| Target Material | Conductive metallic rotating shaft |
| Measurement Function | Shaft vibration, radial displacement, and position monitoring |
| Output Signal | Linear proportional electrical signal |
| Measurement Accuracy | High precision displacement measurement |
| Operating Temperature Range | Approximately -40°C to +177°C |
| Storage Temperature Range | Approximately -50°C to +105°C |
| Environmental Resistance | Suitable for industrial vibration, temperature variation, and continuous operation |
| Cable Configuration | Integrated cable assembly |
| Connection Type | Industrial monitoring system connection |
| Installation Method | Threaded mounting design |
| Signal Stability | Excellent repeatability and long-term stability |
| Mechanical Structure | Compact cylindrical industrial probe design |
| Approximate Dimensions | Probe diameter approximately 8 mm, probe length approximately 25 mm, cable length varies according to configuration |
| Weight (kg) | Approximately 0.12 kg |
The 330425-02-05 operates using eddy current sensing technology, which enables accurate measurement without direct physical contact with rotating components.
During operation, the probe creates an electromagnetic field around the sensing tip. When the distance between the probe and the rotating shaft changes, the electromagnetic field characteristics also change.
The sensor converts these changes into electrical output signals that represent shaft displacement. Monitoring equipment processes these signals to evaluate vibration levels, rotor movement, shaft position, and overall machinery condition.
The non-contact operating principle reduces mechanical wear, improves measurement reliability, and allows the probe to operate effectively on high-speed rotating machinery for extended periods.
The product provides accurate measurement of shaft movement and vibration changes. It can detect small variations in machine operation, allowing maintenance teams to identify potential problems before they develop into major failures.
The probe does not physically touch the rotating shaft, eliminating friction and reducing mechanical wear. This improves service life and maintains stable measurement performance.
The probe provides consistent electrical signals with high repeatability, supporting accurate vibration analysis and reliable machinery protection.
The product is designed for harsh industrial environments where equipment experiences continuous vibration, temperature changes, and demanding operating conditions.
The 8 mm probe design allows installation in areas where mounting space is limited, especially around bearings and rotating components.
The product is suitable for equipment requiring continuous monitoring and reliable operation over long service periods.
The 330425-02-05 is widely applied in steam turbine monitoring systems to measure shaft vibration and displacement.
Common monitoring functions include:
Gas turbines operate under high rotational speeds and extreme conditions. The probe provides accurate shaft movement information to support equipment protection and operating reliability.
Large compressors require continuous monitoring to prevent mechanical failures.
The product helps detect:
The probe can be installed on generators to monitor rotating components and improve equipment reliability.
The product provides important shaft displacement information for large industrial pumps, helping reduce maintenance costs and unexpected downtime.
Large motors can use the probe to monitor vibration conditions, shaft alignment, and mechanical performance.
| Advantage | Description |
|---|---|
| High Measurement Accuracy | Provides precise shaft displacement and vibration monitoring |
| Non-Contact Operation | Reduces mechanical wear and improves service life |
| Integrated Cable Design | Simplifies installation and system connection |
| High Temperature Capability | Suitable for demanding industrial environments |
| Stable Output Signal | Provides reliable monitoring information |
| Compact Size | Allows installation in restricted spaces |
| Long Operating Life | Designed for continuous industrial applications |
| Predictive Maintenance Support | Helps identify machine problems before failure |
| Wide Application Compatibility | Suitable for different types of rotating machinery |
| Model | Product Series | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330425-01-00 | 3300 XL Proximity Probe Series | 8 mm proximity probe, eddy current sensing, shaft displacement measurement | Approx. 8 mm diameter, probe length depends on configuration | 0.12 kg | General rotating machinery monitoring |
| 330425-01-05 | 3300 XL Proximity Probe Series | 8 mm probe with integrated cable, vibration monitoring capability | Approx. 8 mm diameter, approximately 25 mm probe length | 0.12 kg | Turbine and compressor applications |
| 330425-02-00 | 3300 XL Proximity Probe Series | 8 mm precision proximity probe, stable displacement measurement | Approx. 8 mm cylindrical probe structure | 0.12 kg | Industrial machinery protection |
| 330425-02-05 | 3300 XL Proximity Probe Series | 8 mm proximity probe with cable assembly, high reliability measurement | Approx. 8 mm diameter, length depends on configuration | 0.12 kg | Critical rotating equipment |
| 330425-03-05 | 3300 XL Proximity Probe Series | High reliability probe, precision shaft movement detection | Approx. compact cylindrical design | 0.13 kg | Large machinery monitoring |
| Model | Product Series | Main Parameters | Dimensions | Weight (kg) | Application |
|---|---|---|---|---|---|
| 330130-040-00-00 | 3300 XL Proximity Probe Series | 8 mm probe, high precision eddy current measurement, shaft vibration monitoring | Approx. 8 mm probe diameter | 0.10 kg | Turbine and compressor monitoring |
| 330400-02-05 | 3300 XL Series | Proximity sensor component, shaft displacement measurement, stable signal output | Approx. 8 mm sensor diameter | 0.15 kg | Machinery protection systems |
| 330180-51-00 | 3300 XL Extension Cable Series | Extension cable assembly, signal transmission support | Cable length varies by configuration | 0.20 kg | Sensor connection extension |
| 330930-060-00-05 | 3300 XL Series | Proximity measurement component, industrial vibration monitoring | Approx. cylindrical industrial structure | 0.15 kg | Rotating equipment monitoring |
| 330103-00-05-10-02-00 | 3300 Series | Standard proximity probe, general machinery vibration measurement | Approx. 5 mm-8 mm probe configuration | 0.12 kg | Industrial equipment monitoring |
| Application Requirement | Recommended Model | Reason |
|---|---|---|
| Standard shaft vibration monitoring | 330425-02-05 | Reliable measurement performance with integrated cable design |
| High-speed turbine monitoring | 330130-040-00-00 | Provides high precision shaft measurement |
| Existing proximity system replacement | 330400-02-05 | Suitable for common monitoring applications |
| Long-distance sensor installation | 330180-51-00 | Provides flexible signal extension capability |
| General industrial machinery monitoring | 330103-00-05-10-02-00 | Suitable for standard condition monitoring applications |
The Bently Nevada 330425-02-05 is a precision proximity probe from the 3300 XL Proximity Probe Series. It is designed to provide accurate, stable, and continuous monitoring of rotating machinery shaft movement.
With advanced eddy current sensing technology, the product delivers reliable non-contact measurement, excellent signal stability, and long-term operational durability. The integrated cable structure improves installation convenience while maintaining reliable signal transmission.
The probe is widely used in turbines, compressors, generators, pumps, and industrial motors where accurate vibration monitoring and machinery protection are required.
The combination of precise measurement capability, compact design, environmental adaptability, and long service life makes the 330425-02-05 a practical solution for predictive maintenance, machine protection, and industrial equipment condition monitoring applications.