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Product Introduction
The Bently Nevada 330910-03-09-05-02-05 3300 NSv Proximity Probe is a high-precision non-contact sensor designed for monitoring the vibration and shaft displacement of small or compact rotating machinery. It is part of the Bently Nevada 3300 NSv (Narrow Signal version) proximity transducer system, specifically engineered for applications where space is limited, yet precise and stable measurements are required.
The 330910-03-09-05-02-05 probe operates based on the Eddy Current principle, allowing it to measure the distance between the probe tip and a conductive target surface with high accuracy. It is commonly used for shaft vibration, radial position, and axial displacement monitoring. This model’s compact structure and optimized signal characteristics make it especially suitable for small turbines, compressors, pumps, and gearboxes where conventional probes cannot fit.
Built with robust stainless steel housing and oil-resistant PTFE insulation, this probe provides exceptional resistance to harsh environments, vibration, and temperature fluctuations. When paired with its matching 3300 NSv Extension Cable and Proximitor Sensor, the system ensures consistent performance and excellent linearity across the entire measurement range.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | 330910-03-09-05-02-05 |
| Product Type | 3300 NSv Proximity Probe |
| System Compatibility | 3300 NSv Proximity Transducer System |
| Measurement Principle | Eddy Current (Non-contact displacement) |
| Typical Applications | Shaft vibration, position, and displacement monitoring |
| Linear Range | 0.25 mm to 2.0 mm (10 to 80 mils) |
| Nominal Gap | 1.0 mm (40 mils) |
| Sensitivity | 7.87 mV/µm (200 mV/mil) |
| Frequency Response | DC to 10 kHz (–3 dB) |
| Probe Tip Diameter | 5 mm |
| Thread Type | M8 × 1 |
| Material | Stainless Steel housing with PTFE insulated cable |
| Operating Temperature | –35°C to +180°C |
| Storage Temperature | –40°C to +200°C |
| Maximum Cable Length | Compatible up to 5 m total (probe + extension + proximitor) |
| Output Voltage Range | –2 VDC to –18 VDC proportional to gap distance |
| System Power Requirement | –24 VDC (nominal, via Proximitor) |
| Insulation Resistance | >100 MΩ at 500 VDC |
| Vibration Tolerance | 20 g peak-to-peak (10–2000 Hz) |
| Shock Resistance | 100 g, 11 ms duration |
| Moisture Protection | IP67 (oil and moisture resistant) |
| Weight | 0.15 kg |
| Total Length | 0.5 meter |
Product Applications
The Bently Nevada 330910-03-09-05-02-05 proximity probe is extensively used in industrial and power generation machinery that requires accurate, real-time monitoring of shaft and bearing conditions. Its compact design and superior electrical performance make it ideal for confined or integrated equipment environments.
Typical Applications Include:
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Small Turbines: Used for shaft vibration and position monitoring in small steam and gas turbines.
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Compressors: Ensures accurate detection of radial and axial movement in high-speed compressors.
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Gearboxes: Provides vital shaft displacement data for gear alignment and mechanical health diagnostics.
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Centrifugal Pumps: Detects shaft instability, unbalance, and cavitation-induced vibrations.
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Motors and Generators: Used to monitor shaft alignment and detect rotor dynamic issues.
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OEM Machinery Packages: Suitable for skid-mounted equipment where limited space requires miniature sensors.
The probe is integral to machine protection systems, where it helps prevent failures by detecting early mechanical degradation such as imbalance, misalignment, or bearing wear.
Product Advantages
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Compact Form Factor: Ideal for installation in restricted mechanical spaces or small machinery.
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High Linearity and Accuracy: Maintains consistent sensitivity across its entire operating range.
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Wide Operating Temperature: Performs reliably under extreme temperature variations.
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Strong Environmental Resistance: IP67-rated protection ensures long-term durability against oil and moisture.
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Excellent Frequency Response: Capable of capturing fast vibration events with high fidelity.
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Rugged Stainless-Steel Construction: Provides superior corrosion and wear resistance.
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Electromagnetic Isolation: Reduces interference and enhances measurement accuracy.
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Seamless System Compatibility: Fully compatible with 3300 NSv proximitor sensors and extension cables.
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Low Noise Output: Delivers clean, stable signal transmission even in high-vibration environments.
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Proven Reliability: Based on Bently Nevada’s industry-standard proximity sensing technology.
FAQ
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What is the sensing principle of the 330910-03-09-05-02-05 proximity probe?
It uses the Eddy Current principle to measure the distance between the probe tip and a conductive target without physical contact. -
Which proximitor system is this probe compatible with?
It is designed for use with the 3300 NSv Proximitor System and corresponding extension cables. -
What is the sensitivity rating of this probe?
The sensitivity is approximately 7.87 mV/µm (200 mV/mil), providing accurate output over its full range. -
Can the probe operate in high-temperature environments?
Yes, it operates effectively within a temperature range of –35°C to +180°C. -
What is the output voltage range of the probe system?
The output voltage typically varies from –2 VDC to –18 VDC, corresponding to the gap distance. -
Is the 330910-03-09-05-02-05 probe oil-resistant?
Yes, it features an IP67-rated design that provides resistance to oil and moisture intrusion. -
Can this probe measure both axial and radial shaft motion?
Yes, it can be installed for either axial position monitoring or radial vibration detection, depending on the setup. -
Does this probe require periodic recalibration?
The probe is factory-calibrated, but system calibration may be needed during commissioning for optimal accuracy. -
What is the frequency response range of this model?
It provides a frequency response from DC up to 10 kHz (–3 dB), enabling high-speed measurement capability. -
How does this NSv probe differ from the standard 3300 XL series probes?
The NSv version has a narrower signal range and is optimized for smaller shaft applications and confined installations, unlike the larger XL series designed for general-purpose machinery.
Related Models (Same Series)
| Model Number | Description |
|---|---|
| 330910-01-19-10-02-00 | 3300 NSv Probe, standard type for small machinery monitoring |
| 330910-00-09-05-05-02 | 3300 NSv compact probe for small shaft vibration detection |
| 330910-02-12-10-02-00 | Reverse mount NSv probe for limited access environments |
| 330910-00-05-10-02-00 | Short tip NSv probe for close-coupled machinery |
| 330910-01-08-10-02-00 | 8 mm tip high-temperature NSv probe |
| 330910-00-18-05-05-02 | Compact NSv probe for compressor and turbine use |
Popular Models from the Same Brand (Bently Nevada)
| Model Number | Description |
|---|---|
| 330103-00-05-10-02-00 | 3300 XL 5 mm Proximity Probe, general-purpose |
| 330130-040-00 | 3300 XL 8 mm Proximity Probe for vibration monitoring |
| 3500/42M | Proximitor Seismic Monitor Module, 4-channel |
| 330104-00-10-10-02-00 | 3300 XL 10 mm Proximity Probe, extended range |
| 3500/22M | Communications Gateway Module for 3500 systems |
| 330500-02 | Industrial Accelerometer for high-frequency vibration monitoring |
