Description

The Bently Nevada 330101-00-45-05-02-00 is an 8 mm non-contact proximity probe designed for the 3300 XL 8 mm Proximity Transducer System. This specific configuration is highly tailored for machinery protection chains, featuring a fully threaded 3/8-24 UNF steel body with an unthreaded length of 0.0 inches and an overall case length of 4.5 inches. To minimize unnecessary wire management inside tight machinery enclosures, it is fitted with a short 0.5-meter (1.6 feet) standard coaxial cable and terminated with a miniature coaxial ClickLoc connector. As a general-purpose, uncertified configuration, it does not require hazardous area approvals, distinguishing it from -05 CSA/ATEX/IECEx approved variants.

Utilizing the eddy-current transduction principle, this probe performs high-precision, non-contact measurements of static and dynamic displacement of critical rotating elements. When paired with a compatible 3300 XL Proximitor sensor and extension cable, it forms a complete, calibrated transducer loop. It is extensively applied on bearing housings and machinery casings to monitor shaft dynamic vibration, axial position (thrust), speed, and phase reference on heavy-duty steam turbines, gas turbines, centrifugal compressors, and industrial pumps.

Features

• Standard 8 mm tip diameter optimized for non-contact eddy-current displacement measurement
• Fully threaded 3/8-24 UNF steel body without armor, suited for standard permanent mount installations
• Rugged polyphenylene sulfide (PPS) tip and robust stainless steel case body for harsh industrial environments
• Short 0.5-meter (1.6 feet) integrated cable reduces overall loop length and avoids excess coiled wiring
• Gold-plated miniature coaxial ClickLoc connector ensures secure, reliable coupling with low-loss transmission
• Viton O-ring pressure seal integrated into the probe assembly to prevent bypass media leakage

Applications

• Shaft dynamic radial vibration monitoring on turbo-machinery and auxiliary systems
• Rotor axial dynamic positioning and thrust bearing wear protection
• Speed sensing and phase reference (Keyphasor) applications on high-speed shafts
• Permanent condition monitoring and machinery protection across power generation, petrochemical, and oil and gas fields
• Critical rotating asset protection for high-performance pumps, compressors, and generator sets

Ordering Information

The 330101 proximity probe can be customized across several configuration segments. Below is the exact decoding for this specific SKU configuration:

Technical Specifications

Connections and Interfaces

The probe includes an integrated 0.5-meter standard coaxial cable terminated with a gold-plated miniature ClickLoc coaxial connector. This connection mechanism slides on and clicks in place securely. Connection to compatible Bently Nevada extension cables requires only finger-tight torque, ensuring a low-noise, reliable transmission signal.

Installation Guidelines

• Mount the probe securely using standard threaded brackets. Set the target gap during static conditions to the recommended -9 Vdc [approximately 1.27 mm (50 mils)] center calibration point.
• Observe a maximum thread engagement length limit of 0.563 inches to prevent case binding or damage during mounting.
• Ensure all coaxial cabling is run through dedicated protective conduit and is structurally shielded from abrasive surfaces and high temperatures.
• Maintain a minimum operating temperature of -34 degC to protect the integrated Viton O-ring seal from structural cold-cracking, preventing fluid bypass.

Compliance and Certifications

This configuration incorporates Option 00 for Agency Approvals. It is designed solely for use in general-purpose, non-hazardous industrial environments and does not carry hazardous location certificates (such as ATEX, IECEx, NEPSI, or CSA explosion-proof ratings).