Bently Nevada 330104-01-09-10-11-05 3300 XL 8 mm Proximity Probe

Product Overview

When unplanned downtime threatens production targets, the Bently Nevada 330104-01-09-10-11-05 3300 XL 8 mm Proximity Probe provides the precise vibration and position measurements needed for predictive maintenance. This probe is part of the trusted 3300 XL series, designed for non-contact sensing of shaft motion in rotating machinery. Built with a polyphenylene sulfide (PPS) tip and an AISI 303 or 304 stainless steel case, it withstands harsh industrial environments. The 330104-01-09-10-11-05 includes a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable, ensuring reliable signal transmission even in demanding conditions.

Key Specifications

The 330104-01-09-10-11-05 features a 1.0 meter (3.3 feet) total length with an unthreaded length of 10 mm and an overall case length of 90 mm. The probe uses an M10 x 1 thread and includes armor for added durability. Nominal probe DC resistance from center conductor to outer conductor is 7.59 ± 0.50 Ω. The probe tip material is polyphenylene sulfide (PPS), and the case material is AISI 303 or 304 stainless steel. It accepts a 3300-series 5 mm or 3300 XL 8 mm probe and extension cable, requiring -17.5 Vdc to -26 Vdc power supply with 12 mA maximum consumption. The output resistance is 50 Ω, and sensitivity is less than 2 mV change per volt change in input voltage.

Industry Applications

This proximity probe excels in monitoring critical rotating equipment such as turbines, compressors, pumps, and motors. In oil and gas facilities, the 330104-01-09-10-11-05 provides real-time shaft vibration data to prevent catastrophic failures. Power generation plants use it for continuous monitoring of steam turbine bearings and generator shafts. The probe's multiple approval options (including Class I, Zone 0 and Zone 2 certifications) make it suitable for hazardous area installations where safety and reliability are paramount.

Installation Guidance

Proper installation ensures accurate measurements. Mount the probe with the M10 x 1 thread into a suitable mounting fixture, ensuring the tip is positioned perpendicular to the target surface. The probe seals differential pressure between tip and case using a Viton O-ring. For optimal performance, gap the probe at 1.27 mm (50 mils) against an AISI 4140 steel target. Connect the miniature coaxial ClickLoc connector securely to the extension cable, and route the FluidLoc cable away from high-interference sources. Always follow the manufacturer's installation drawing for non-incendive or intrinsically safe connections.

Maintenance and Reliability

Routine inspection of the probe and cable assembly helps maintain measurement accuracy. Check the PPS tip for wear or contamination, and verify the stainless steel case integrity. The probe is designed for long-term reliability in temperatures from -55°C to +232°C (depending on temperature classification). Periodic verification of the DC resistance (7.59 ± 0.50 Ω) can indicate cable or connector issues. For safety-rated installations, follow the manufacturer's safety manual for inspection intervals and testing procedures.

Comparison with Similar Probes

Compared to standard 5 mm proximity probes, the 3300 XL 8 mm probe offers a larger sensing face and improved linear range for demanding applications. Unlike unarmored probes, the 330104-01-09-10-11-05 includes armor for enhanced mechanical protection. The ClickLoc connector provides a secure, quick-disconnect solution versus traditional threaded connectors, reducing installation time and preventing signal loss. The multiple approval option (05) allows use in both intrinsically safe and non-incendive circuits, offering flexibility that single-certification probes lack.

Purchasing Advice

Before ordering, verify that the 330104-01-09-10-11-05 matches your system requirements: 1.0 m total length, M10 x 1 thread, and 10 mm unthreaded length. Confirm compatibility with your 3300 XL Proximitor sensor and extension cable. For current availability and lifecycle status, contact plcmatrix.com, a trusted supplier of Bently Nevada components. They offer new, surplus, and obsolete parts to support both active installations and legacy systems.