Bently Nevada 330104-03-12-05-02-05 | 0.5m Armored Probe

Bently Nevada 330104-03-12-05-02-05 3300 XL 8mm Proximity Probe

Product Overview

The 330104-03-12-05-02-05 is a high-performance 8mm eddy current proximity probe from the Bently Nevada 3300 XL series, the industry benchmark for machinery condition monitoring. This "Made in the U.S.A." sensor features a 120mm overall case length with a 30mm unthreaded section, optimized for specific mounting requirements in industrial rotating equipment. With an integrated stainless steel (SST) armor and a 0.5-meter total length, it delivers precise displacement and vibration data for critical assets like turbines, compressors, and large industrial pumps.

Core Technical Advantages

Engineered for maximum reliability, this probe utilizes a Polyphenylene Sulfide (PPS) tip and an AISI 303/304 stainless steel case, creating a robust seal against differential pressure via an internal Viton® O-ring. The module is fully certified for hazardous locations with CSA, ATEX, and IECEx approvals. Its electrical design ensures superior signal integrity with a stable 50 Ω output resistance and minimal supply sensitivity. The Miniature coaxial ClickLoc™ connector provides a secure, tactile locking connection that remains stable even under the most intense machinery vibrations.

Technical Specifications

Installation & Engineering Guide

During installation, ensure the probe is correctly gapped at 1.27 mm (50 mils) against an AISI 4140 steel target to maintain system accuracy and interchangeability. The 30mm unthreaded length is specifically designed for applications where the probe housing must pass through a bracket or plate before threading into the machine. The ClickLoc™ connector should be tightened until a click is felt to ensure a moisture-resistant and vibration-proof seal. For systems using barriers, the power supply must be maintained between -23 Vdc and -26 Vdc to prevent reduction in the linear measurement range.

Engineering Advantages

The 3300 XL 8mm system provides a standardized solution for machinery protection with high thermal stability and chemical resistance. This probe's Viton® sealing allows it to withstand differential pressure between the tip and case, making it suitable for mounting within gearboxes or bearing housings where fluid containment is vital. The "Option 05" multi-certification package simplifies global compliance, allowing the same probe model to be deployed in hazardous zones across North America, Europe, and international markets using IECEx standards.

Technical FAQs

Q1: What is the benefit of the 30mm unthreaded length (Option 03)?
A1: This option provides a smooth, non-threaded section on the probe case, which is essential for mounting configurations where the probe must slide into a tight clearance hole or specialized mounting bracket before reaching the threaded interface.

Q2: Can this probe be used with 3300-series 5mm systems?
A2: Yes, the 3300 XL 8mm probe is designed to be compatible with 3300-series 5mm and 8mm Proximitor sensors, though using a complete 3300 XL system is recommended for the best accuracy specifications.

Q3: Is a Certificate of Origin (COO) included?
A3: This product is manufactured in the USA. While not included by default in every box, an official Certificate of Origin (COO) can be added to your order upon request to facilitate international trade requirements.