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The Bently Nevada 330905-00-25-50-02-00 is a non-contact proximity transducer component designed for continuous shaft vibration and shaft position monitoring in rotating machinery. It belongs to the well-known 3300 NSv Proximity Transducer System, a compact eddy-current measurement solution developed for installations where limited mounting space, reduced target diameter, or restricted mechanical clearance prevents the use of larger standard probes.
The sensor is engineered to provide accurate displacement measurements while maintaining excellent linearity, repeatability, and long-term stability. It operates together with a matching extension cable and proximity sensor to form a complete transducer system capable of measuring dynamic shaft vibration, axial displacement, eccentricity, speed reference, and other important rotating equipment parameters.
Its compact mechanical design makes it particularly suitable for small centrifugal compressors, gearboxes, turbines, motors, pumps, generators, and other industrial rotating equipment requiring continuous condition monitoring.
The sensor is manufactured to operate reliably under harsh industrial conditions, including high vibration environments, elevated temperatures, oil contamination, moisture, and continuous plant operation. It is widely used in predictive maintenance programs and machinery protection systems where equipment reliability is essential.
Brand: Bently Nevada
Series: 3300 NSv Proximity Transducer System
The 3300 NSv Series is specifically designed for applications requiring compact proximity probes without sacrificing measurement performance. Compared with conventional proximity systems, the NSv Series offers a significantly smaller probe body, allowing installation in machinery with limited mounting clearance.
The series complies with industrial vibration monitoring requirements and is compatible with numerous machinery protection systems used throughout the power generation, petrochemical, oil & gas, mining, marine, steel, pulp & paper, and manufacturing industries.
| Parameter | Specification |
|---|---|
| Product Model | 330905-00-25-50-02-00 |
| Product Type | Proximity Probe |
| Measurement Principle | Eddy Current |
| Series | 3300 NSv |
| Brand | Bently Nevada |
| Probe Diameter | Approximately 5 mm |
| Probe Material | Stainless Steel Housing |
| Cable Type | Integral Shielded Cable |
| Connector Type | Standard Connector |
| Output Signal | Compatible with 3300 NSv Proximitor Sensor |
| Measurement Target | Conductive Metallic Shaft |
| Frequency Response | Suitable for Dynamic Vibration Monitoring |
| Operating Temperature | Industrial Wide Temperature Range |
| Environmental Protection | Industrial Grade |
| Mounting Type | Threaded Installation |
| Measurement Accuracy | High Linear Accuracy |
| Repeatability | Excellent |
| Stability | Long-Term Stable Performance |
| Electromagnetic Immunity | High |
| Mechanical Durability | Excellent |
| Corrosion Resistance | High |
| Maintenance Requirement | Low |
| Typical Service Life | Long-Term Continuous Operation |
| Dimensions | Probe Diameter: Approximately 5 mm; Overall Length Defined by Model Configuration |
| Weight (kg) | Approximately 0.18 kg |
The 330905-00-25-50-02-00 incorporates advanced eddy-current sensing technology capable of detecting extremely small shaft movements with high precision. Its compact mechanical construction allows installation in equipment where conventional proximity probes cannot fit.
The sensing element provides outstanding linearity throughout its operating range, ensuring accurate displacement measurements even during long-term continuous operation.
The rugged stainless-steel construction enhances resistance against corrosion, mechanical wear, vibration, oil contamination, and industrial environmental conditions.
The probe is designed for excellent signal stability, minimizing drift caused by temperature changes or long operating periods. This contributes to consistent machine monitoring results and reduces calibration frequency.
The integrated cable structure improves reliability while reducing installation complexity. High-quality shielding minimizes electromagnetic interference from surrounding industrial equipment.
The product supports continuous online monitoring and integrates easily into machinery protection systems used for predictive maintenance programs.
Its low maintenance requirement helps reduce operating costs while improving equipment availability.
The 330905-00-25-50-02-00 is widely applied in industrial machinery protection and condition monitoring systems where accurate shaft movement measurement is essential.
Typical applications include:
The sensor continuously measures shaft vibration, shaft displacement, eccentricity, thrust position, differential expansion, rotor movement, and rotational reference signals, enabling maintenance personnel to detect developing faults before catastrophic equipment failure occurs.
The compact probe design enables installation in confined spaces where larger proximity probes cannot be accommodated.
High measurement accuracy provides dependable vibration and shaft displacement data for machinery diagnostics.
Excellent long-term stability reduces recalibration frequency and lowers maintenance costs.
Robust industrial construction delivers dependable performance under severe operating environments.
Superior electromagnetic interference resistance ensures stable output signals even in electrically noisy installations.
Low mechanical wear contributes to extended operational life.
High corrosion resistance makes the product suitable for harsh industrial applications.
Reliable continuous monitoring improves equipment availability and minimizes unexpected shutdowns.
Fast installation simplifies replacement during scheduled maintenance.
Excellent compatibility with machinery monitoring systems supports efficient plant integration.
Outstanding repeatability enhances trend analysis accuracy.
Low maintenance requirements reduce lifecycle operating costs.
High vibration resistance allows dependable operation on critical rotating equipment.
Stable performance over extended operating periods supports predictive maintenance strategies.
Industrial-grade durability improves overall machinery protection reliability.
| Model | Series | Product Type | Probe Diameter | Typical Application | Dimensions | Weight (kg) |
|---|---|---|---|---|---|---|
| 330905-00-18-10-02-00 | 3300 NSv | Proximity Probe | 5 mm | Small Motors | Compact Configuration | 0.17 |
| 330905-00-25-10-02-00 | 3300 NSv | Proximity Probe | 5 mm | Compressors | Compact Configuration | 0.18 |
| 330905-00-30-10-02-00 | 3300 NSv | Proximity Probe | 5 mm | Turbines | Compact Configuration | 0.19 |
| 330906-02-12-05-02-00 | 3300 NSv | Extension Cable | Matching System Cable | General Monitoring | Standard Cable Configuration | 0.30 |
| 330980-50-00 | 3300 NSv | Proximitor Sensor | Matching Electronics | Machinery Protection | Compact Housing | 0.65 |
| Model | Series | Product Type | Main Function | Dimensions | Weight (kg) |
|---|---|---|---|---|---|
| 330103-00-05-10-02-00 | 3300 XL 8 mm | Proximity Probe | Shaft Vibration Monitoring | Standard Probe Size | 0.22 |
| 330180-90-00 | 3300 XL | Proximitor Sensor | Signal Conditioning | Compact Module | 0.72 |
| 330130-040-00-00 | 3300 XL | Extension Cable | Signal Transmission | Standard Cable Assembly | 0.45 |
| 3500/42M | 3500 Machinery Protection System | Proximitor Monitor | Vibration Monitoring | Rack Module | 0.90 |
| 3500/22M | 3500 Machinery Protection System | Transient Data Interface | Communication Interface | Rack Module | 0.95 |
The Bently Nevada 330905-00-25-50-02-00 is a compact, high-performance proximity probe within the 3300 NSv Proximity Transducer System, specifically developed for precision shaft vibration and displacement monitoring in applications where installation space is limited. Its compact construction, high measurement accuracy, stable long-term performance, rugged industrial design, and excellent environmental resistance make it an ideal solution for critical rotating machinery across numerous industrial sectors.
The probe supports continuous online condition monitoring, predictive maintenance programs, and machinery protection systems by delivering reliable displacement data that assists maintenance engineers in detecting imbalance, misalignment, shaft rub, looseness, bearing wear, thrust movement, and other developing mechanical faults. With its durable construction, low maintenance requirements, excellent repeatability, and compatibility with industrial monitoring systems, the 330905-00-25-50-02-00 remains a dependable choice for improving equipment reliability, minimizing unplanned downtime, and extending the service life of valuable rotating assets.