High-Performance Deep-Mount Vibration Sensor for Critical Machinery Protection
The Bently Nevada 330904-15-15-05-02-00 3300 NSv Proximity Probe is a non-contact eddy-current sensor engineered for precise shaft vibration and position monitoring in rotating machinery operating under demanding industrial conditions. As part of the 3300 NSv (Narrow Side View) family, this probe is designed to maintain stable measurement accuracy even in compact mechanical assemblies where surrounding metallic structures can influence signal behavior.
This configuration is typically used in deeper mounting applications, where extended probe geometry is required to reach the optimal measurement target zone. The NSv platform is widely adopted in compressors, turbines, pumps, and OEM rotating equipment due to its combination of compact sensing performance and high mechanical robustness.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330904-15-15-05-02-00 |
| Product Series | 3300 NSv Proximity Probe |
| Measurement Principle | Eddy-current non-contact sensing |
| Thread Type | M8 × 1 metric thread |
| Unthreaded Length | 150 mm class configuration |
| Case Length | 150 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 | 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 | ~0.2–0.9 kg (configuration dependent) |
Industrial Applications
This probe is widely applied in machinery condition monitoring systems where reliability and precision are critical:
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Centrifugal compressors
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Gas and steam turbines
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Turbo-expanders
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High-speed industrial pumps
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Refrigeration and process compressors
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Air separation units (ASU)
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Petrochemical rotating equipment
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OEM skid-mounted machinery packages
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Power generation auxiliary systems
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Continuous predictive maintenance platforms
Its extended mechanical design supports deeper installation requirements commonly found in heavy-duty industrial housings.
Key Advantages
◆ Extended Deep-Mount Configuration
Designed for installations requiring longer insertion depth into machinery housings.
◆ Stable NSv Signal Performance
Reduces measurement distortion caused by nearby metallic structures, improving signal reliability.
◆ High-Accuracy Non-Contact Measurement
Delivers consistent shaft vibration and displacement readings without mechanical wear.
◆ Industrial-Grade Mechanical Strength
Stainless steel construction ensures durability in harsh, high-temperature environments.
◆ Reliable Signal Transmission
75 Ω coaxial cable provides stable, low-noise measurement performance over long-term operation.
◆ Predictive Maintenance Capability
Supports early detection of imbalance, misalignment, and bearing degradation.
◆ OEM and Retrofit Flexibility
Suitable for both new equipment designs and modernization of legacy systems.
Technical FAQs
Q1: What does this probe measure?
It measures shaft vibration and radial displacement without physical contact.
Q2: What is NSv technology?
NSv stands for Narrow Side View, designed to reduce interference from nearby metallic structures.
Q3: What does “15-15” indicate?
It generally refers to an extended body configuration supporting deeper mounting depth (150 mm class geometry).
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 M8 × 1 metric threaded mounting system.
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 shaft target and proper gap setting.
Q10: What maintenance is recommended?
Regular inspection of cable integrity, mounting stability, and signal verification.
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