Bently Nevada 330101-55-75-10-02-00 3300 XL 8 mm Probe

Product Overview

The Bently Nevada 330101-55-75-10-02-00 is a 3300 XL 8 mm Probe with a 3/8-24 UNF thread, designed without armor for precise vibration monitoring in rotating machinery. This probe is essential for detecting shaft vibration and position in critical assets like turbines, compressors, and pumps. Its robust construction includes a patented TipLoc molding method for a stronger bond between the probe tip and body, and a CableLoc design providing 330 N (75 lbf) pull strength.

Technical Specifications Breakdown

Key parameters for the 330101-55-75-10-02-00 are listed below for quick reference:

Industry Applications

This probe is widely used in oil and gas refineries, power generation plants, and chemical processing facilities for monitoring radial vibration and thrust position of rotating equipment. Its 2 mm linear range and high sensitivity (7.87 V/mm) enable early detection of shaft misalignment or bearing wear, reducing unplanned downtime. The robust stainless steel case and PPS tip withstand high temperatures and corrosive environments, ensuring reliable operation in critical applications.

Installation & Setup Guidance

When installing the 330101-55-75-10-02-00, ensure proper thread engagement: the maximum length of thread engagement is 0.563 in for the 3/8-24 UNF thread. Use the recommended probe case torque of 11.2 N•m (100 in•lbf) for standard forward mounted probes, and 7.5 N•m (66 in•lbf) for the first three threads. The recommended gap setting for radial vibration is -9 Vdc (approximately 1.27 mm or 50 mils). Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) 3-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) between the Proximitor Sensor and the monitor.

Maintenance & Reliability

Inspect the probe and cable periodically for physical damage or wear. The probe is designed to seal differential pressure with a Viton O-ring; avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. The probe maintains less than a 3% change in Average Scale Factor (ASF) when tested in 93% humidity per IEC standard 68-2-3 for up to 56 days, ensuring stable performance in humid conditions.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify the thread type (3/8-24 UNF), unthreaded length (5.5 in), and overall case length (7.5 in) to match your installation. The 330101-55-75-10-02-00 is a standard configuration without armor, suitable for most industrial environments. For availability and lifecycle status, contact AutoDCSTech to ensure the correct part for your application. AutoDCSTech offers genuine Bently Nevada components with expert support to help you maintain machinery reliability.