Precision Monitoring Solution for Critical Rotating Equipment
The Bently Nevada 330902-04-40-10-02-CN 3300 NSv Proximity Probe is a compact, industrial-grade non-contact sensor engineered for high-accuracy shaft vibration and position measurements in demanding machinery protection applications. As part of the renowned 3300 NSv (Narrow Side View) family, this probe is optimized for installations with limited physical clearance while maintaining excellent signal stability and measurement performance. The CN configuration includes multiple international approval options for wider industrial deployment.
Designed for continuous operation, this probe helps operators enhance equipment reliability, reduce unplanned shutdowns, and support advanced predictive maintenance programs. Its robust construction and compact footprint make it an ideal choice for modern industrial facilities that prioritize operational efficiency and long-term asset protection.
Product Engineering Specifications
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330902-04-40-10-02-CN |
| Product Type | 3300 NSv Proximity Probe |
| Measurement Technology | Eddy Current Non-Contact Sensing |
| Product Family | 3300 NSv |
| Probe Construction | Armored Probe Design |
| Thread Type | 1/4-28 UNF |
| Unthreaded Length | 0.4 in (10.2 mm) |
| Overall Case Length | 4.0 in (101.6 mm) |
| Total Cable Length | 1.0 m (39 in) |
| Connector Type | Miniature Coaxial ClickLoc Connector |
| Cable Type | Standard 75 Ω FEP Insulated Cable |
| Housing Material | Stainless Steel |
| Operating Principle | Dynamic Vibration & Static Position Measurement |
| Dimensions | 101.6 mm probe body + 1.0 m cable assembly |
| Approximate Weight | 0.15 kg |
| Approval Configuration | CN Multiple Industrial Approvals |
Typical Industrial Applications
This proximity probe is commonly deployed in mission-critical rotating equipment, including:
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Steam turbines
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Small gas turbines
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Centrifugal compressors
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Turbo-expanders
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Industrial refrigeration compressors
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Air separation units
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High-speed process pumps
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Electric motors
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OEM packaged systems
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Continuous machine protection systems
Its compact profile makes it especially valuable in retrofit projects where installation space is limited.
Performance Advantages
◆ Narrow Side View Technology
Minimizes side interference from nearby metallic structures for improved measurement accuracy.
◆ Compact Yet Powerful Design
Ideal for machinery with restricted installation clearances.
◆ High Measurement Stability
Provides dependable vibration and shaft position data during continuous operation.
◆ International Approval Capability
The CN configuration supports broader industrial deployment requirements.
◆ Rugged Industrial Construction
Stainless steel housing delivers excellent durability and corrosion resistance.
◆ Supports Predictive Maintenance
Enables early detection of abnormal machine behavior before failures occur.
◆ Long Service Life
Built for demanding 24/7 industrial environments.
Technical FAQs
Q1: What is the main function of this proximity probe?
It measures shaft vibration and shaft position without contacting rotating components.
Q2: What does NSv stand for?
NSv stands for Narrow Side View, which reduces sensitivity to nearby metallic surfaces.
Q3: What does the "04" configuration represent?
It indicates a 0.4-inch unthreaded probe length configuration.
Q4: What does the "40" designation indicate?
It represents a 4.0-inch overall case length.
Q5: How long is the integrated cable?
This model includes a 1.0-meter cable assembly.
Q6: What does the CN suffix mean?
CN refers to multiple industrial approval configurations for broader installation compatibility.
Q7: Is this probe suitable for hazardous environments?
Yes, when installed according to applicable system requirements and approvals.
Q8: Can different NSv components be mixed?
No. The probe, extension cable, and Proximitor sensor must always be properly matched as a complete system. Technicians consistently emphasize that NSv components are configuration-specific.
Q9: What maintenance is recommended?
Inspect cable integrity, probe mounting, and verify system performance during scheduled maintenance.
Q10: Which industries frequently use this product?
Oil & gas, petrochemical, power generation, water treatment, refrigeration, and industrial manufacturing sectors.
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