Engineered for Accurate Shaft Monitoring in Space-Constrained Machinery
The Bently Nevada 330905-00-25-50-02-00 3300 NSv Proximity Probe is a precision non-contact eddy current sensor developed for rotating machinery where installation space is limited and conventional proximity probes cannot be accommodated. As a key component of the 3300 NSv Proximity Transducer System, this probe provides highly accurate shaft vibration and displacement measurements for compact compressors, turbines, motors, and other critical assets. The NSv system is specifically designed for applications with restricted side-view, rear-view, or counterbore clearances while maintaining outstanding measurement accuracy and long-term stability.
The 330905-00-25-50-02-00 configuration features a metric M10 × 1 threaded probe body, 250 mm overall case length, 5.0 m standard cable, and a miniature ClickLoc coaxial connector with connector protector. Its rugged stainless-steel construction and precision electrical characteristics ensure dependable performance in continuous online machinery monitoring systems, helping maintenance teams improve equipment availability and reduce unexpected downtime.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330905-00-25-50-02-00 |
| Product Type | 3300 NSv Proximity Probe |
| Series | 3300 NSv Proximity Transducer System |
| Measurement Principle | Eddy Current (Non-contact) |
| Thread Type | M10 × 1 Metric |
| Armor Option | Without Armor |
| Unthreaded Length | 0 mm |
| Overall Case Length | 250 mm |
| Cable Length | 5.0 m (16.4 ft) |
| Connector Type | Miniature Coaxial ClickLoc Connector with Connector Protector |
| Cable Type | Standard Coaxial Cable |
| Probe Body Material | AISI 304 Stainless Steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Linear Measurement Range | Approximately 1.5 mm (60 mils) |
| Recommended Gap Setting | Approximately 1.0 mm (40 mils) |
| Frequency Response | 0 Hz to 10 kHz |
| Operating Temperature | -52°C to +177°C |
| System Compatibility | 3300 NSv Proximitor Sensor and 330930 NSv Extension Cable |
| Dimensions | M10 × 1 Thread × 250 mm Overall Case Length |
| Weight | Approximately 0.26 kg |
Typical Applications
Designed for compact machinery and restricted mounting locations, the 330905-00-25-50-02-00 delivers reliable shaft displacement measurements across numerous industrial sectors.
Typical applications include:
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Centrifugal air compressors
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Process gas compressors
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Steam turbines
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Gas turbines
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High-speed electric motors
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Gearboxes
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Turbochargers
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Centrifugal pumps
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Machine tool spindles
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OEM rotating equipment
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Petrochemical processing plants
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Power generation facilities
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LNG production systems
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General industrial rotating machinery
Its slim-profile design enables installation where conventional proximity probes cannot be used, while maintaining dependable performance for vibration, shaft position, and displacement monitoring.
Outstanding Product Advantages
Built for continuous industrial service, the 330905-00-25-50-02-00 combines compact dimensions with dependable measurement performance.
Key benefits include:
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Compact M10 × 1 threaded probe for restricted installations
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Non-contact eddy current sensing technology
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High-resolution shaft vibration and position measurement
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Durable stainless-steel construction for long service life
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PPS probe tip offers excellent wear resistance
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Secure ClickLoc connector simplifies installation
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Stable performance over a wide operating temperature range
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Excellent frequency response for dynamic machinery monitoring
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Fully compatible with the complete 3300 NSv transducer system
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Supports predictive maintenance and continuous equipment protection
Technical FAQs
1. What is the primary function of the 330905-00-25-50-02-00?
It measures shaft vibration, shaft position, and relative displacement using non-contact eddy current technology.
2. What thread type does this probe use?
The probe features an M10 × 1 metric threaded body, making it suitable for many compact industrial installations.
3. What does the "25" case length option indicate?
The 25 option specifies an overall probe case length of 250 mm.
4. What cable length is supplied?
This model includes a 5.0-meter standard coaxial cable with a miniature ClickLoc connector.
5. Is this probe armored?
No. The 330905 series is supplied without cable armor, providing greater flexibility for installations where additional mechanical protection is unnecessary.
6. Which monitoring system is compatible with this probe?
It is designed for use with the 3300 NSv Proximitor Sensor and 330930 NSv Extension Cable as part of the complete 3300 NSv Proximity Transducer System.
7. What is the operating temperature range?
The probe is rated for continuous operation from -52°C to +177°C, making it suitable for demanding industrial environments.
8. What measurement range does the probe provide?
The system offers a 1.5 mm (60 mils) linear measurement range with a recommended operating gap of approximately 1.0 mm (40 mils).
9. What are the dimensions and weight?
The probe features an M10 × 1 threaded body, 250 mm overall case length, and weighs approximately 0.26 kg.
10. Why choose the 330905-00-25-50-02-00?
Its compact mechanical design, dependable measurement accuracy, robust construction, and seamless integration with the 3300 NSv monitoring platform make it an excellent solution for high-performance machinery protection in confined installation spaces.
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