Bently Nevada 330101-00-48-10-02-05 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-00-48-10-02-05 is a high-performance, non-armored 8 mm proximity probe designed as a core component of the industry-standard 3300 XL series. Operating on eddy-current measurement principles, this non-contacting sensor provides highly precise dynamic measurements of static shaft position and dynamic vibration against rotating machinery shaft targets (typically AISI 4140 steel). It plays an essential role in machinery protection and condition monitoring chains, interfacing seamlessly with 3300 XL series Proximitor sensors and extension cables.

This specific configuration is built with a 4.8-inch fully threaded case (indicated by the 0.0-inch unthreaded option and 4.8-inch case length code) using standard 3/8-24 UNF threads, allowing for direct mounting into bearing housings or machine casings where maximum threaded adjustability is required. It is equipped with a 1.0-meter standard triaxial FEP-insulated cable terminated in a gold-plated miniature coaxial ClickLoc connector (without connector protector) and is fully certified under CSA, ATEX, and IECEx approvals for safe installation in hazardous industrial zones.

Features

• Rugged polyphenylene sulfide (PPS) probe tip provides structural and chemical resistance in harsh machine environments.
• Fully threaded 4.8-inch AISI 303/304 stainless steel case offers heavy-duty mechanical protection and installation depth flexibility.
• High-tensile probe-to-cable design withstands up to 330 N (75 lbf) of pull force.
• Gold-plated miniature coaxial ClickLoc connector ensures a vibration-proof, low-loss electrical connection to extension cables.
• Standard FEP-insulated 75-ohm triaxial cable rated for wide operating temperatures.
• Physically and electrically interchangeable with other Bently Nevada 3300 XL 8 mm proximity probe system components.

Applications

• Steam and gas turbine shaft vibration monitoring.
• Rotor axial displacement and radial vibration tracking on compressors, pumps, and cooling tower fans.
• Permanent mounting installations on critical rotating machinery within petrochemical, oil and gas, and power generation plants.
• High-reliability protective monitoring chains interfacing with Bently Nevada 3500 rack systems.

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the proximity probe is installed in accordance with standard Bently Nevada engineering practices. Mount with an appropriate probe gap per system calibration (typically gapped at 1.27 mm or 50 mils against an AISI 4140 steel target for standard 3300 XL systems). Always route the coaxial cable with proper shielding and grounding practices to prevent electrical noise in the vibration monitoring paths. Ensure minimum cable bend radius limits of 25.4 mm (1.0 inch) are respected. Avoid overtightening the probe casing; apply torque up to the recommended 11.2 N-m (100 in-lbf) to prevent damaging thread engagements.

Compliance and Certifications

This configuration complies with the following approvals and directives:

• EMC Directive 2014/30/EU: Compliant with EN 61000-6-2 (Industrial Immunity) and EN 61000-6-4 (Industrial Emissions).
• RoHS Directive 2011/65/EU: Complies with restrictive hazardous substances standards.
• Hazardous Area Approvals (Option 05): Certified for intrinsically safe (ia) and non-incendive (nA/ec) environments under CSA, ATEX, and IECEx approvals.
• Functional Safety: SIL 2 capability (HFT=0), SIL 3 capability (HFT=1) when used as part of a complete safety-instrumented system monitoring chain.