Bently Nevada 330104-00-09-50-02-CN 3300 XL 8 mm Proximity Probe

Product Overview

When rotating machinery experiences unexpected vibration, the Bently Nevada 330104-00-09-50-02-CN provides precise displacement measurements to help diagnose issues early. This 3300 XL 8 mm proximity probe is engineered for continuous monitoring of shaft vibration and position in critical assets like turbines, compressors, and pumps. With its robust construction and proven performance, it supports predictive maintenance programs that reduce unplanned downtime.

Technical Specifications

The 330104-00-09-50-02-CN features a 5.0 meter (16.4 feet) total length with a miniature coaxial ClickLoc connector. The probe tip is made of polyphenylene sulfide (PPS), offering excellent chemical resistance and thermal stability. The probe case is constructed from AISI 303 or 304 stainless steel (SST) for durability in harsh environments. It has a nominal DC resistance of 8.73 ± 0.50 ohms from center conductor to outer conductor. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. For electrical performance, it requires -17.5 Vdc to -26 Vdc power supply when installed with non-incendive circuit per drawing 140979 at 12 mA maximum consumption. The output resistance is 50 ohms. The system is calibrated using an AISI 4140 steel target at a gap of 1.27 mm (50 mils) for optimal accuracy.

Industry Applications

This proximity probe is ideal for vibration monitoring in rotating equipment such as steam turbines, centrifugal compressors, and large electric motors. In a typical installation, the 330104-00-09-50-02-CN mounts near the bearing housing to measure shaft radial vibration or axial position. Its 8 mm sensing face provides reliable gap measurements even in limited access areas. The M10 x 1 thread allows secure mounting in standard probe holders. By integrating this probe into a condition monitoring system, maintenance teams can detect early signs of imbalance, misalignment, or bearing wear, enabling timely corrective action.

Installation and Setup Guidance

Proper installation is critical for accurate readings. Mount the probe with the M10 x 1 thread into a compatible probe holder, ensuring the tip is clean and free of debris. Gap the probe to 1.27 mm (50 mils) from the target surface using a non-ferrous feeler gauge. Connect the miniature coaxial ClickLoc connector to the extension cable, then route the cable to the proximitor sensor. Verify that the power supply meets the -17.5 Vdc to -26 Vdc requirement. For hazardous area installations, follow the applicable intrinsic safety or non-incendive wiring per drawings 141092 or 140979. The probe operates reliably within ambient temperatures from -55°C to +232°C depending on temperature classification (T1 to T5).

Maintenance and Reliability

To ensure long-term reliability, periodically inspect the probe tip for contamination or physical damage. Clean the tip gently with a soft cloth if needed. Check the cable and connector for signs of wear or corrosion. The stainless steel case provides excellent resistance to corrosive environments, while the PPS tip withstands high temperatures and chemical exposure. Regular calibration checks against a known target help maintain measurement accuracy. Following these simple steps extends the service life of the 330104-00-09-50-02-CN and reduces total cost of ownership.

Compatibility and Integration

This probe is designed for use with Bently Nevada 3300 XL 8 mm proximitor sensors and extension cables. It accepts one non-contacting 3300-series 5 mm or 8 mm probe and extension cable. The system performance characteristics apply only when using genuine 3300 XL 8 mm components. For hazardous area installations, the probe is approved for Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga and Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc, among other ratings. Verify compatibility with your existing monitoring system before ordering.

Buying Guide

Before purchasing the 330104-00-09-50-02-CN, confirm the required cable length and connector type. This model comes with a 5.0 meter cable and miniature coaxial ClickLoc connector. Ensure your target material matches the AISI 4140 steel used for calibration. For assistance with selection or to verify lifecycle status, contact plcmatrix.com. As a trusted supplier of industrial automation components, plcmatrix.com offers fast shipping and expert support for Bently Nevada products.