Bently Nevada 330101-00-76-20-02-05 3300 XL 8 mm Proximity Probe

Description

Fully threaded 3/8-24 UNF steel probe body (Option 00) with a 7.6 in overall case length (Option 76) and 2.0 m total length (Option 20) — 330101-00-76-20-02-05 specifies this unarmored 3300 XL 8 mm proximity probe. This specific variant is configured without armor, utilizing a standard coaxial cable and a miniature ClickLoc connector without a connector protector (Option 02). It is certified with Option 05 approvals (CSA, ATEX, and IECEx) for hazardous areas.

Operating on the eddy-current principle, this probe measures static and dynamic shaft displacement on high-speed rotating machinery. It interfaces with a 3300 XL Proximitor sensor and extension cable to form a complete 3300 XL transducer system. Sibling configurations such as the 330102 series feature stainless steel armor for additional mechanical protection, whereas this unarmored 330101 model is preferred for installations where the cable is routed entirely within protective conduit or machine casings. The 7.6-inch long case allows deep insertion through thick bearing housings or outer machine casings to achieve the required probe-to-target gap.

Features

• Option 00 unthreaded length (0.0 inches) provides a fully threaded body along the entire case length.
• Option 76 overall case length of 7.6 inches accommodates deep-reach installations on large machinery.
• Option 20 total length provides a 2.0-meter integrated coaxial cable.
• Option 02 coaxial cable is unarmored and features a miniature coaxial ClickLoc connector without connector protector.
• Option 05 hazardous area certification provides compliance with CSA, ATEX, and IECEx standards.
• Threaded body utilizes standard 3/8-24 UNF-2A thread configuration.
• Eddy-current operating principle measures physical distance to conductive target materials without contact.

Applications

• Steam and gas turbine shaft vibration and axial position monitoring.
• Compressor and pump rotor displacement measurements.
• Shaft radial vibration and position sensing in fluid-film bearings.
• Critical rotating machinery protection systems.

Ordering Information

Technical Specifications

Installation Guidelines

Mount the probe with the appropriate probe gap per system calibration, typically 1.27 mm (50 mils) for standard linear range. Route the unarmored cable using proper shielding and grounding practices to prevent electromagnetic interference. Ensure that the target surface is free of physical defects and magnetic runout, and do not exceed the maximum mechanical torque limits on the 3/8-24 threads during installation.

Compliance and Certifications

• CSA Certified
• ATEX Compliant
• IECEx Certified
• CE Compliant