Compact High-Precision Sensor for Reliable Machinery Protection Systems
The Bently Nevada 330905-00-05-10-02-00 3300 NSv Proximity Probe is a non-contact eddy-current vibration and displacement sensor designed for rotating machinery where installation space is limited but measurement accuracy must remain highly stable. As part of the 3300 NSv (Narrow Side View) series, this probe is engineered to reduce signal distortion caused by nearby metallic structures while delivering consistent performance in continuous industrial monitoring applications.
This model is commonly used in compressors, turbines, pumps, and other critical rotating assets, where predictive maintenance systems rely on accurate shaft vibration data to prevent unplanned downtime and equipment failure. The 330905 configuration is part of the NSv extended family designed for metric-thread compact installations with flexible mechanical reach options.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330905-00-05-10-02-00 |
| Product Series | 3300 NSv Proximity Probe |
| Measurement Principle | Eddy-current non-contact sensing |
| Thread Type | M10 × 1 metric thread |
| Unthreaded Length | 50 mm |
| Case Length | 100 mm |
| Total Cable Length | 0.5 m |
| Connector Type | Miniature ClickLoc coaxial connector |
| Cable Type | 75 Ω FEP insulated coaxial cable |
| Housing Material | AISI 304 stainless steel |
| Probe Tip Material | PPS (Polyphenylene Sulfide) |
| Operating Temperature | -52°C to +177°C |
| Frequency Response | 0–10 kHz |
| Linear Measurement Range | ~1.5 mm typical NSv system behavior |
| Approx. Weight | ~1.0–1.5 kg (configuration dependent) |
Industrial Applications
This probe is widely used in industrial condition monitoring and protection systems, including:
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Centrifugal compressors
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Gas compressors and refrigeration units
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Steam and gas turbines
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Turbo-expanders
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High-speed industrial pumps
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Air separation units
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Petrochemical rotating equipment
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OEM skid-mounted machinery
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Power generation auxiliary systems
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Continuous predictive maintenance platforms
Its balanced configuration makes it suitable for general-purpose NSv installations where both reach depth and mechanical stability are required.
Key Advantages
◆ Balanced Mechanical Design for Versatile Installation
The 100 mm class structure provides a flexible fit for a wide range of machine housings.
◆ Stable NSv Signal Performance
Reduces interference from surrounding metallic structures for more reliable readings.
◆ High-Accuracy Non-Contact Measurement
Delivers consistent vibration and shaft displacement data without physical wear.
◆ Industrial-Grade Construction
Stainless steel body ensures durability in harsh environments and long operational life.
◆ Reliable Signal Transmission
75 Ω coaxial cable ensures low-noise, stable signal integrity.
◆ Predictive Maintenance Support
Helps detect imbalance, misalignment, and early bearing degradation.
◆ OEM & Retrofit Friendly
Suitable for both new machine builds and system upgrades in legacy equipment.
Technical FAQs
Q1: What does this probe measure?
It measures shaft vibration and radial displacement without physical contact.
Q2: What does NSv mean?
NSv stands for Narrow Side View, designed to reduce interference from nearby metal structures.
Q3: What does the “05-10” configuration indicate?
It typically refers to a 50 mm unthreaded length and a 100 mm case length.
Q4: What is the cable length?
This model includes a 0.5-meter integrated coaxial cable.
Q5: What is the thread type?
It uses an M10 × 1 metric threaded mounting system.
Q6: Where is it commonly used?
It is widely used in compressors, turbines, pumps, and industrial rotating machinery.
Q7: Is it suitable for high-temperature environments?
Yes, it is designed for continuous operation up to +177°C.
Q8: Can NSv components be mixed?
No. Probe, extension cable, and Proximitor sensor must be matched as a complete system.
Q9: What is the main installation requirement?
Correct alignment with the rotating shaft target and proper gap setting.
Q10: What maintenance is recommended?
Regular inspection of cable condition, mounting stability, and signal verification.
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