Bently Nevada 330105-02-12-90-02-05 3300 XL 8 mm Reverse Mount Probes

Description

330105-02-12-90-02-05 is a 3300 XL 8 mm reverse mount proximity probe, featuring a 3/8-24 UNF thread, 20 mm unthreaded length (Option 02), and 120 mm case length (Option 12). This 3300 XL 8 mm proximity probe is engineered for non-contact eddy-current displacement measurement, serving as a core component in vibration and position monitoring systems for critical rotating machinery. The system provides a precise voltage output proportional to the gap between the probe tip and the observed conductive surface, essential for monitoring shaft vibration, axial position, and rotor speed in turbines, compressors, and pumps.

This configuration includes a 9.0 meter total system length (Option 90) and uses a miniature coaxial ClickLoc connector with a standard cable (Option 02). It is rated for hazardous area environments with CSA, ATEX, and IECEx approvals (Option 05). The 3300 XL design ensures compatibility with 3300 XL Proximitor sensors and extension cables, maintaining the necessary electrical impedance match for reliable, long-term performance in industrial monitoring applications.

Features

• Reverse mount probe design with 3/8-24 UNF thread for secure installation
• Option 02: 20 mm unthreaded probe length
• Option 12: 120 mm overall case length
• Option 90: 9.0 meter total length for integration into monitoring chains
• Option 02: Miniature ClickLoc coaxial connector with standard cable
• Option 05: Agency approvals including CSA, ATEX, and IECEx
• Rugged design for continuous operation in demanding, high-vibration environments

Applications

• Turbine and compressor shaft vibration monitoring
• Rotor axial position and thrust measurement
• Critical rotating machinery protection
• Fluid-film bearing performance monitoring
• High-speed industrial pump and motor shaft position

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the probe is installed using the appropriate mounting hardware for 3/8-24 UNF threads. Maintain proper gap settings as specified in the 3300 XL manual to ensure linear operation. The miniature ClickLoc connector must be clean and free of moisture during installation. When routing cables, avoid sharp bends and ensure the cable length and probe length match the system calibration (9.0 m total length in this configuration). In hazardous area installations, ensure compliance with the provided Bently Nevada drawing 141092 or 140979 as applicable.

Compliance and Certifications

• CSA (Canadian Standards Association)
• ATEX (Atmospheres Explosibles)
• IECEx (International Electrotechnical Commission Explosive)