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Product Introduction
The Bently Nevada 330904-08-15-10-02-CN 3300 NSv Proximity Probe is a high-precision non-contact vibration and displacement sensor specifically engineered for demanding industrial environments. As a member of the 3300 NSv (Narrow Side View) series, it is designed for installations where space is limited but accurate shaft vibration and position monitoring are critical. The probe uses advanced eddy-current sensing technology to deliver real-time measurements of shaft movement, enabling predictive maintenance and protecting high-value rotating equipment such as turbines, compressors, and large electric motors. With robust stainless-steel construction and excellent environmental sealing, this probe ensures long-term stability and dependable performance under severe operating conditions.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | 330904-08-15-10-02-CN |
| Series | 3300 NSv Proximity Probe |
| Total Length | 1 meter |
| Weight | 0.15 kg |
| Sensing Principle | Eddy current, non-contact displacement measurement |
| Tip Diameter | 5 mm (nominal) |
| Linear Range | 0.25 mm to 2.0 mm (depends on target material) |
| Sensitivity | 7.87 V/mm ±5% |
| Frequency Response | 0 to 10 kHz (typical) |
| Operating Temperature | –35 °C to +177 °C |
| Probe Material | Hermetically sealed stainless steel |
| Insulation Resistance | >10 MΩ at 500 VDC |
| Power Supply | Requires compatible Bently Nevada proximitor |
| Connector Type | Standard Bently Nevada miniature coaxial |
| Mounting Thread | M10 × 1.0 or 3/8-24 UNF (varies by configuration) |
| Compliance | CE, RoHS, and ATEX certified for hazardous areas |
Applications
The 330904-08-15-10-02-CN proximity probe supports a wide array of critical industrial uses:
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Gas and Steam Turbines – Continuous shaft vibration and axial position monitoring to prevent imbalance or misalignment.
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Compressors and Pumps – Early detection of bearing wear and cavitation problems.
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Motors and Generators – Accurate rotor dynamics measurement for predictive maintenance.
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Gearboxes and Industrial Fans – Monitors gear mesh and shaft vibration for reliable operation.
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OEM Machinery – Compact design allows easy integration into custom-built equipment with limited space.
Advantages
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High Measurement Accuracy – Advanced eddy-current sensing provides precise displacement and vibration data.
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Compact Narrow Side View Design – Perfect for installations with restricted space without compromising performance.
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Robust Construction – Stainless steel body and hermetic sealing protect against moisture, dust, and corrosive environments.
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Seamless System Integration – Fully compatible with Bently Nevada 3300 monitoring systems for quick installation and calibration.
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Wide Temperature Capability – Reliable operation from –35 °C to +177 °C even in extreme industrial conditions.
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Low Maintenance – Non-contact operation eliminates mechanical wear and reduces downtime.
FAQ
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What target material is recommended for best linearity?
The probe is factory-calibrated for AISI 4140 steel; other ferromagnetic materials may require recalibration. -
What is the maximum extension cable length supported?
Up to 9 meters when paired with an appropriate Bently Nevada proximitor and matching extension cables. -
Can the probe be installed in hazardous areas?
Yes, it meets ATEX and CE Zone 1 requirements when installed with certified accessories. -
How is accuracy affected by temperature variation?
Built-in temperature compensation minimizes measurement drift across the specified operating range. -
What is the standard output sensitivity with a proximitor?
Typically 200 mV per mil (7.87 V/mm) with ±5 % tolerance. -
Does the probe measure both vibration and static shaft position?
Yes, it provides dynamic vibration and static displacement signals simultaneously. -
What cable bend radius is recommended during installation?
A minimum bend radius of 25 mm is recommended to avoid cable damage. -
Is regular calibration required?
Calibration is generally only necessary after system reconfiguration or component replacement. -
Is the probe protected against electromagnetic interference (EMI)?
Yes, the coaxial cable and internal shielding provide strong EMI resistance. -
Can it interface with older Bently Nevada monitoring systems?
Yes, it can operate with earlier Bently Nevada series when used with the correct proximitor and proper calibration.
Related Models in the Same Series
| Model | Description |
|---|---|
| 330904-05-14-05-02-00 | 3300 NSv probe, 0.5 m cable length |
| 330904-00-14-10-02-00 | Standard NSv probe with 1 m cable |
| 330904-05-10-05-02-00 | Short-range NSv probe for confined installations |
| 330909-00-05-05-02-00 | High-temperature NSv probe |
| 330930-040-01-00 | Extended linear range model for larger shaft diameters |
| 330878-90-00 | NSv probe with armored cable for heavy-duty applications |
Popular Bently Nevada Models
| Model | Application |
|---|---|
| 3500/22M | Rack Interface Module for advanced machine monitoring |
| 330105-02-12-10-02-00 | Standard proximity probe for general industrial use |
| 330400 | High-performance accelerometer for vibration detection |
| 330500 | Velocity transducer for rotating equipment |
| 330780-91-05 | Proximitor sensor for precision displacement monitoring |
| 3500/42M | Advanced vibration monitor with diagnostics |
