Description

Engineered for precise, non-contact machinery protection, the Bently Nevada 330101-00-15-20-12-05 is an 8 mm proximity probe designed to measure dynamic vibration and static shaft position in critical rotating equipment. This specific configuration is equipped with a 3/8-24 UNF thread, 0.0 inches of unthreaded length, and a 1.5-inch overall case length. Designed to handle severe industrial environments, this variant features a 2.0-meter overall cable length and is equipped with the patented FluidLoc cable option (option 12), which prevents oil, process gases, and other liquids from leaking out of the machine housing through the interior of the coaxial cable. With integrated CSA, ATEX, and IECEx certifications (option 05), this proximity probe is fully certified for use in hazardous areas. It operates as part of the 3300 XL 8 mm Proximity Transducer System, interfacing directly with a 3300 XL Proximitor Sensor and compatible extension cables.

Features

• FluidLoc Leakage Prevention: Incorporates a patented FluidLoc cable seal that stops oil and process fluids from migrating through the internal structure of the cable.
• Secure Mechanical Coupling: Built with a patented CableLoc design providing up to 330 N (75 lbf) of pull strength to secure the cable to the probe tip.
• Precision Threaded Design: Features a 3/8-24 UNF standard threaded body without armor, enabling direct, secure installation on bearing housings or machine casings.
• Hazardous Area Compliance: Certified to CSA, ATEX, and IECEx hazardous area standards for dependable operation in classified zones.
• Corrosion-Resistant Connection: Outfitted with a miniature coaxial ClickLoc connector with gold-plated contacts that "click" when finger-tightened, ensuring a vibration-resistant, tool-free connection.

Applications

• Steam and gas turbine shaft vibration monitoring
• Compressor and pump rotor axial and radial displacement measurement
• Critical rotating machinery protective monitoring chains
• Industrial machinery permanent bearing housing and casing mounting

Ordering Information

Technical Specifications

Installation Guidelines

Mount the probe with the appropriate probe gap as per your 3300 XL system calibration (typically -10 Vdc corresponding to a 1.27 mm or 50 mils gap for AISI 4140 target). Ensure the coaxial cable is routed with proper shielding and grounding practices to prevent electromagnetic interference. Standard practices for rotating machinery monitoring suggest utilizing robust conduit and protecting the ClickLoc connectors from environmental exposure. Avoid exceeding the maximum mechanical torque limits on the 3/8-24 UNF threads.

Compliance and Certifications

This sensor option (05) is certified to hazardous area standard requirements including:

• CSA: Class I, Zone 0, Class II, Groups E, F, G, Class III (intrinsically safe per drawing 141092)
• ATEX/IECEx: Ex ia IIC T5...T1 Ga; Ex ia IIIC T90C...T280C Dc (Zone 0/20 intrinsically safe)
• European Community Directives: EMC Directive 2014/30/EU, RoHS Directive 2011/65/EU
• Functional Safety: SIL 2 (HFT = 0), SIL 3 (HFT = 1)