Bently Nevada 330104-03-09-50-02-05 3300 XL 8 mm Proximity Probe

Introduction

When critical rotating machinery like turbines and compressors experience unexpected vibration, the Bently Nevada 330104-03-09-50-02-05 3300 XL 8 mm proximity probe provides the precise measurement needed to diagnose and prevent failures. This probe is part of the trusted 3300 XL series, engineered for reliable non-contact displacement and vibration monitoring in the most demanding industrial applications.

Technical Specifications

The 330104-03-09-50-02-05 features an M10 x 1 thread with armor for enhanced mechanical protection. It offers an unthreaded length of 30 mm and an overall case length of 90 mm. The total length option is 5.0 meters (16.4 feet), providing flexibility for installation in tight spaces. The probe tip is made of polyphenylene sulfide (PPS), while the case is constructed from AISI 303 or 304 stainless steel (SST) for durability. The nominal probe DC resistance (RPROBE) from center conductor to outer conductor is 8.73 ± 0.50 Ω at 5.0 m length. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. It accepts a 3300-series 5 mm or 3300 XL 8 mm proximity probe and extension cable, requires -17.5 Vdc to -26 Vdc power (12 mA max consumption), and has an output resistance of 50 Ω.

Industry Applications

This proximity probe is ideal for monitoring shaft vibration and position in turbines, compressors, pumps, and motors. In a typical power generation plant, the 330104-03-09-50-02-05 helps detect early signs of bearing wear or imbalance, allowing maintenance teams to schedule repairs before catastrophic failure occurs. Its rugged construction and agency approvals (CSA, ATEX, IECEx) make it suitable for use in hazardous areas, including Class I, Zone 0 and Zone 2 environments.

Installation Guide

For optimal performance, mount the probe with the specified gap of 1.27 mm (50 mils) to an AISI 4140 steel target. Ensure the cable is routed without sharp bends and secured to prevent strain. When installing in intrinsically safe circuits, follow drawing 141092 for zener barriers or use galvanic isolators. For nonincendive circuits, connect per drawing 140979. Verify the ambient temperature at the probe tip does not exceed the temperature classification limits for the specific EPL (Ga, Gc, or Dc) as detailed in the temperature schedule.

Maintenance & Reliability

Regularly inspect the probe and cable for physical damage or contamination. The PPS tip and stainless steel case resist corrosion and wear, ensuring long service life. Periodic verification of the system accuracy against an AISI 4140 steel target is recommended. The probe's robust sealing and armor reduce the risk of failure in harsh environments, minimizing unplanned downtime.

Buying Guide

Before purchasing, confirm that the 330104-03-09-50-02-05 matches your system requirements: verify the thread size (M10 x 1), total length (5.0 m), and connector type (miniature coaxial ClickLoc). Ensure compatibility with your existing 3300 XL 8 mm Proximitor Sensor and extension cable. For current availability and lifecycle status, please contact plcmatrix.com. As a trusted supplier of industrial automation components, plcmatrix.com offers this probe along with expert support to help you select the right part for your application.