Bently Nevada 330101-00-40-10-02-CN 3300 XL 8 mm Proximity Probe

Description

Engineered for precise shaft vibration and position measurements in rotating machinery, the Bently Nevada 330101-00-40-10-02-CN represents a core transducer component within the standard 3300 XL 8 mm Proximity Transducer System. This eddy current sensor translates the physical distance between its probe tip and a conductive target into a proportional electrical signal when integrated with a matching Proximitor. Featuring a 3/8-24 UNF thread, a 4.0-inch overall case length, and a 1.0-meter total cable length termination, this probe provides consistent mechanical stability and thermal tracking. The integrated ClickLoc miniature coaxial connector ensures low-loss signal transmission under harsh environmental conditions, while the CN agency option designates specific regional safety approvals for localized industrial compliance.

Features

• High-Stability Threaded Case: 3/8-24 UNF threaded body constructed for robust structural mounting in machine housings.
• ClickLoc Coaxial Design: Gold-plated miniature coaxial ClickLoc connector limits contact resistance and prevents loose couplings from machine vibration.
• Consistent Scale Factor: Delivers a highly linear electrical output when paired with a matching 3300 XL Proximitor over its defined measurement range.
• Rugged Enclosure Protection: Molded PPS probe tip material offers resistance to moisture, lubricating oils, and aggressive industrial solvents.
• Regional Approvals (CN Suffix): Certified to comply with local hazardous area and electrical code safety requirements.

Applications

• Steam and Gas Turbines: Monitoring shaft radial vibration and axial thrust position.
• Centrifugal Compressors: Tracking rotor dynamic motion and bearing wear parameters.
• Large Electric Motors and Generators: Monitoring structural shaft deflection and air-gap stability.
• Heavy Duty Industrial Pumps: Continuous health diagnostics in process-critical fluid machinery.

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The 1.0-meter probe cable option requires a matching 4.0-meter extension cable when used within a standard 5.0-meter proximity system, or an 8.0-meter extension cable within a 9.0-meter system. Connecting a 1.0-meter probe directly to an incorrect length extension cable will cause severe system calibration errors and incorrect millivolt-to-mil conversions. Ensure the Proximitor sensor's electrical length rating matches the total combined physical length of the probe plus the extension cable.

Application Pitfalls & Engineering Notes

To prevent electrical cross-talk and target signal distortion, maintain a minimum physical clearance of 1.5 times the probe tip diameter (approx. 12 mm or 0.5 inches) from any adjacent structural metals or mounting brackets. When installing in deep threaded holes, confirm that the unthreaded length of the probe case matches the application to prevent mechanical interference with internal machine components or potential impact with the rotating shaft.

Commissioning & Wiring Tips

Always clean the coaxial ClickLoc connectors with electronic contact cleaner or isopropyl alcohol prior to coupling. Debris or oil inside the coaxial interface introduces high-frequency resistance, directly mimicking false shaft motion. For secure installation, hand-tighten the ClickLoc connection and wrap it with high-grade self-fusing silicone tape to prevent oil ingress in wet machine environments.

Installation Guidelines