Compact High-Performance Eddy Current Sensor for Advanced Machinery Protection
The Bently Nevada 330905-00-25-70-02-00 3300 NSv Proximity Probe is a precision displacement measurement sensor designed for applications where installation space is limited but reliable shaft vibration monitoring is essential. As part of the 3300 XL NSv Proximity Transducer System, this probe provides accurate non-contact measurement of shaft position, radial vibration, and dynamic displacement for small targets and compact rotating machinery. The NSv series is specifically optimized for machines with restricted mounting clearances, including compressor applications where standard proximity probes cannot be installed effectively.
The 330905-00-25-70-02-00 configuration features an M10 × 1 threaded probe design, 250 mm overall case length, 7.0-meter cable, and a miniature coaxial ClickLoc connector with standard cable construction. This configuration offers extended installation flexibility while maintaining excellent signal stability and measurement accuracy. Built with industrial-grade materials and designed for continuous operation, it supports reliable machinery condition monitoring in demanding environments.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330905-00-25-70-02-00 |
| Product Type | 3300 NSv Proximity Probe |
| Series | 3300 XL NSv Proximity Transducer System |
| Measurement Technology | Eddy Current Non-contact Displacement Measurement |
| Probe Thread | M10 × 1 Metric Thread |
| Probe Type | Standard Mount, Without Armor |
| Unthreaded Length | 0 mm |
| Overall Case Length | 250 mm |
| Cable Length | 7.0 m (23 ft) |
| Connector Type | Miniature Coaxial ClickLoc Connector |
| Cable Type | Standard Coaxial Cable |
| Probe Body Material | AISI 304 Stainless Steel |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Target Measurement | Shaft Vibration, Position, Displacement |
| Linear Range | 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 Extension Cable |
| Dimensions | M10 × 1 Thread × 250 mm Probe Case Length |
| Weight | Approximately 0.28 kg |
Industrial Applications
The 330905-00-25-70-02-00 is designed for machinery requiring accurate displacement monitoring in compact installation spaces. Its narrow profile makes it especially valuable for equipment where access restrictions prevent the use of larger proximity probe systems.
Common applications include:
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Centrifugal compressors
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Process gas compressors
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Refrigeration compressors
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Small steam turbines
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High-speed rotating machinery
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Electric motors
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Gearboxes
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Turbochargers
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Auxiliary turbine systems
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Pump monitoring systems
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Petrochemical processing equipment
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Power generation machinery
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OEM packaged machinery
The probe is particularly suitable for monitoring smaller shafts and limited-clearance installations while maintaining dependable vibration and position measurement performance.
Product Advantages
The 330905-00-25-70-02-00 combines compact mechanical design with proven Bently Nevada sensing technology.
Main benefits include:
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Compact M10 × 1 design for restricted installation areas
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Non-contact eddy current measurement eliminates mechanical wear
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Extended 7-meter cable length improves installation flexibility
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Stable output performance for continuous machinery monitoring
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Excellent resistance to vibration and industrial environments
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High-temperature capability up to 177°C
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Accurate measurement of shaft displacement and vibration
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Compatible with 3300 NSv Proximitor Sensor systems
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Supports predictive maintenance programs
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Helps reduce unexpected equipment failures and downtime
Technical FAQs
1. What is the purpose of the 330905-00-25-70-02-00?
It is used to measure shaft displacement, vibration, and position on rotating machinery through eddy current proximity sensing technology.
2. What system does this probe belong to?
It belongs to the Bently Nevada 3300 XL NSv Proximity Transducer System, which includes the NSv probe, extension cable, and Proximitor Sensor.
3. What does the 330905 model number represent?
The 330905 series identifies an M10 × 1 threaded 3300 NSv proximity probe without armor.
4. What does the “25” option indicate?
The 25 option specifies an approximately 250 mm overall case length configuration.
5. What does the “70” option indicate?
The 70 option indicates a 7.0-meter total cable length.
6. Does this probe include cable armor?
No. This model uses a standard cable configuration without stainless-steel armor.
7. What type of connector is used?
It uses a miniature coaxial ClickLoc connector for secure signal connection.
8. What is the measurement range?
The probe provides approximately 1.5 mm (60 mils) linear measurement range.
9. What is the operating temperature range?
The probe is designed for operation from approximately -52°C to +177°C.
10. Why choose the 330905-00-25-70-02-00?
Its compact size, extended cable length, reliable eddy current technology, and compatibility with Bently Nevada monitoring platforms make it a strong solution for precision machinery protection.
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