Bently Nevada 330101-00-61-15-02-00 3300 XL 8 mm Proximity Probe

Description

Optimized for non-contact shaft vibration and displacement measurements, the Bently Nevada 330101-00-61-15-02-00 is an unarmored 8 mm proximity probe engineered with 3/8-24 UNF threads. This specific configuration is tailored for applications requiring a fully threaded body, featuring a 0.0-inch unthreaded length combined with a robust 6.1-inch overall case length. The integrated standard cable spans 1.5 meters (4.9 feet) and terminates in a high-reliability miniature ClickLoc coaxial connector. Since this variant is configured without hazardous area approvals (approval option 00), it offers an efficient and practical monitoring solution for standard industrial environments. It functions seamlessly within the 3300 XL transducer chain to safeguard critical rotating machinery such as steam turbines, gas turbines, compressors, and pumps.

Features

• 8 mm tip diameter proximity probe optimized for non-contact eddy-current displacement measurement
• Fully threaded 3/8-24 UNF-2A probe body (0.0 in unthreaded length) for flexible mounting depth
• Robust 6.1 in overall case length constructed from durable AISI 303 or 304 stainless steel
• 1.5-meter standard triaxial cable insulated with fluoroethylene propylene (FEP) providing high chemical resistance
• Gold-plated miniature ClickLoc coaxial connector ensures consistent electrical contact and reliable signal transmission
• Rugged tip engineered with high-performance polyphenylene sulfide (PPS) for harsh industrial climates
• Electrically and physically interchangeable with non-XL 3300 5 mm and 8 mm components

Applications

• Steam and gas turbine shaft vibration and axial position monitoring
• Compressor rotor axial displacement measurements
• Radial vibration monitoring on fluid-film bearing housings
• Pump shaft displacement and speed sensing
• Machine protection and condition monitoring in non-hazardous industrial installations

Ordering Information

Technical Specifications

Connections and Interfaces

The probe is equipped with an integrated miniature coaxial connector designed to pair directly with Bently Nevada extension cables.

Installation Guidelines

• Mounting: Ensure that the probe is mounted with the correct probe gap setting (typically 1.27 mm or 50 mils for standard calibration with AISI 4140 steel targets) relative to the target surface.
• Thread Engagement: Do not exceed the maximum recommended thread engagement of 0.563 inches to prevent binding during installation. Use the recommended installation torque of 11.2 N-m (100 in-lbf).
• Cable Routing: Route the FEP insulated coaxial cable away from high-temperature areas, sharp edges, and high-voltage power lines. Ensure the minimum cable bend radius of 25.4 mm (1.0 in) is observed to prevent signal degradation.
• Connector Maintenance: Ensure the ClickLoc connectors are clean, dry, and finger-tightened during assembly. Use a silicon connector protector if environmental moisture exposure is a concern.
• Grounding: Follow standard vibration monitoring system grounding and shielding practices, ensuring shields are terminated to instrument ground at the rack panel or junction box.

Compliance and Certifications

This specific variant (option code 00) does not carry or require hazardous area approvals. For hazardous area installations requiring ATEX, IECEx, or CSA approvals, alternate configurations (such as option code 05) must be selected.