Description

The Bently Nevada 330101-00-28-90-02-00 is an 8 mm unarmored proximity probe featuring a fully threaded 2.8-inch case (0.0 inches of unthreaded length) and an integrated 9.0-meter (29.5-foot) cable. This specialized configuration is engineered for direct connection to a 9-meter Proximitor sensor, entirely bypassing the need for an intermediate extension cable. By eliminating secondary cabling connections, this setup reduces signal degradation, simplifies routing, and minimizes potential mechanical failure points on critical bearing casings and machine housings.

Operating on the eddy-current measurement principle, the probe delivers highly precise, non-contact dynamic vibration and static shaft position tracking. It interfaces with the Bently Nevada 3300 XL machinery protection system, Proximitor 330180 series, and 3500 rack structures. This specific configuration (00 unthreaded length, 28 case length, 90 total length, 02 unarmored standard coaxial cable, and 00 non-hazardous agency approval) is optimized for general-purpose installations where specialized armor and agency certifications are not required.

Features

• High-performance 8 mm probe tip optimized for non-contact machinery displacement sensing.
• 9.0-meter total integrated cable length supports direct connection to the Proximitor sensor without an extension cable.
• Fully threaded 3/8-24 UNF housing (2.8 inches overall length) provides highly flexible mounting options.
• Tactile ClickLoc miniature coaxial connector ensures a locked, low-loss RF connection.
• Rugged polyphenylene sulfide (PPS) probe tip with stainless steel body designed for demanding industrial environments.

Applications

• Steam turbine and gas turbine shaft vibration and axial position monitoring.
• Compressor and pump rotor dynamic displacement measurements.
• Thrust and radial displacement tracking in fluid-film bearing housings.
• Permanent installation for critical rotating machinery protection chains.

Ordering Information

Technical Specifications

Installation Guidelines

• Mount the probe with the proper initial gap (typically calibrated to 1.27 mm or 50 mils) determined by monitoring output voltage during system setup.
• Do not exceed standard tightening torque limits for 3/8-24 UNF threads to prevent damaging the stainless steel case or internal assembly.
• Maintain a minimum bend radius of 25.4 mm (1.0 inch) for standard unarmored coaxial cables.
• Clean and lock ClickLoc coaxial terminals cleanly; avoid applying excess mechanical stress to the probe connections.