Bently Nevada 330104-01-09-10-12-05 3300 XL 8 mm Proximity Probe

Introduction

In the demanding world of industrial rotating machinery, accurate and reliable vibration monitoring is critical for preventing costly downtime and catastrophic failures. The Bently Nevada 330104-01-09-10-12-05 3300 XL 8 mm Proximity Probe provides the precision and durability needed for continuous condition monitoring of critical assets like turbines, compressors, and pumps. Engineered for harsh environments, this probe delivers consistent performance under extreme temperatures and pressures.

Technical Specifications Breakdown

The 330104-01-09-10-12-05 features a nominal probe DC resistance of 7.59 ± 0.50 ohms from center conductor to outer conductor at 1.0 meter length. The probe tip material is polyphenylene sulfide (PPS), while the case is made from AISI 303 or 304 stainless steel (SST). It accepts one non-contacting 3300-series 5 mm or 3300 XL 8 mm probe and extension cable. Power requirement ranges from -17.5 Vdc to -26 Vdc when installed with nonincendive circuit per drawing 140979 at 12 mA maximum consumption, and -23 Vdc to -26 Vdc with barriers. Output resistance is 50 ohms. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring.

Industry Applications

This proximity probe is ideal for monitoring shaft vibration, axial position, and eccentricity in steam turbines, gas turbines, centrifugal compressors, and large electric motors. Its CSA, ATEX, and IECEx approvals make it suitable for hazardous locations including Class I, Zone 0 and Zone 2 environments. The robust stainless steel case and PPS tip withstand high temperatures up to 232°C, ensuring reliable operation in the most demanding applications.

Installation & Setup Guidance

For optimal performance, mount the probe with the specified gap of 1.27 mm (50 mils) to an AISI 4140 steel target. Ensure the probe cable is routed without sharp bends and secured to avoid vibration-induced wear. The miniature coaxial ClickLoc connector provides a secure, quick connection. Always refer to the installation drawing 140979 for nonincendive circuits or 141092 for intrinsically safe barriers to maintain safety compliance.

Maintenance & Reliability

Regularly inspect the probe cable and connector for signs of wear or damage. Verify the probe tip clearance periodically, especially after machine maintenance. The Viton O-ring seal should be checked for integrity to maintain pressure sealing. Following the manufacturer's guidelines ensures long service life and consistent measurement accuracy.

Selection Guide & Purchasing Advice

Before purchasing, verify that the unthreaded length (10 mm), overall case length (90 mm), total length (1.0 meter), and connector type (miniature coaxial ClickLoc with FluidLoc cable) match your application requirements. The agency approval option 05 includes CSA, ATEX, and IECEx certifications. For current availability and lifecycle status, contact plcmatrix.com, a trusted supplier of Bently Nevada components.