Compact Deep-Mount Sensor for High-Reliability Machinery Monitoring
The Bently Nevada 330904-06-14-05-02-00 3300 NSv Proximity Probe is a non-contact eddy-current sensor designed for precise shaft vibration and position measurement in rotating machinery where installation space and mounting depth are critical constraints. As part of the 3300 NSv (Narrow Side View) series, this probe is optimized to maintain stable performance even in dense mechanical environments where nearby metallic structures could otherwise distort signal accuracy.
The NSv platform is widely used in compressors, turbines, pumps, and OEM skid-mounted equipment, offering a compact yet highly stable solution for continuous condition monitoring and predictive maintenance programs. Based on configuration decoding used across NSv probe families, the “06-14” structure typically corresponds to a 60 mm class probe body with a 140 mm case length, designed for deeper installation geometries in industrial housings.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330904-06-14-05-02-00 |
| Product Series | 3300 NSv Proximity Probe |
| Measurement Principle | Eddy-current non-contact sensing |
| Thread Type | M8 × 1 metric thread |
| Unthreaded Length | 60 mm (configuration-based) |
| Case Length | 140 mm |
| 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 | High-durability engineered polymer (PPS class) |
| Operating Temperature | -52°C to +177°C |
| Frequency Response | 0–10 kHz |
| Linear Measurement Range | ~1.5 mm typical NSv system behavior |
| Approx. Weight | ~0.2–0.8 kg depending on configuration |
Industrial Applications
This probe is commonly used in rotating machinery protection and condition monitoring systems such as:
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Centrifugal compressors
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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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Refrigeration compressors
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Air separation units
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Petrochemical process equipment
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OEM packaged rotating systems
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Power generation auxiliary machinery
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Continuous predictive maintenance systems
Its extended mechanical configuration makes it suitable for installations requiring deeper shaft reach or non-standard mounting alignment.
Key Advantages
◆ Deep-Mount Mechanical Design
Supports installations where probe access requires extended insertion depth into machine housings.
◆ Stable NSv Signal Architecture
Reduces measurement distortion caused by surrounding metallic structures.
◆ High-Resolution Vibration Detection
Provides accurate and repeatable shaft vibration and displacement data.
◆ Industrial-Grade Build Quality
Stainless steel construction ensures long-term durability in harsh environments.
◆ Reliable Signal Transmission
75 Ω coaxial cable ensures low-noise and stable signal integrity.
◆ Predictive Maintenance Optimization
Enables early detection of bearing wear, imbalance, and misalignment.
◆ Retrofit & OEM Compatibility
Suitable for both new machinery and legacy system upgrades.
Technical FAQs
Q1: What does this probe measure?
It measures shaft vibration and radial displacement without physical contact.
Q2: What does NSv stand for?
NSv stands for Narrow Side View, designed to reduce interference from nearby metallic surfaces.
Q3: What does the “06-14” configuration mean?
It typically represents a 60 mm probe body length with a 140 mm case length design.
Q4: What is the cable length?
This model includes a 0.5-meter integrated coaxial cable.
Q5: What is the mounting standard?
It uses an M8 × 1 metric threaded mounting interface.
Q6: Where is it commonly used?
It is used in compressors, turbines, pumps, and industrial rotating machinery.
Q7: Is it suitable for harsh environments?
Yes, it is designed for high-temperature and continuous industrial operation.
Q8: Can NSv components be mixed?
No. Probe, extension cable, and Proximitor sensor must be properly matched as a system.
Q9: What is the main installation requirement?
Correct alignment with the rotating target and correct gap setting.
Q10: What maintenance is recommended?
Periodic inspection of cable integrity, mounting stability, and signal verification.
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