Bently Nevada 330101-48-71-20-02-CN 3300 XL 8 mm Probe, 3/8-24 UNF Thread

Product Overview

The Bently Nevada 330101-48-71-20-02-CN is a 3300 XL 8 mm probe with a 3/8-24 UNF thread, designed without armor. This probe is part of the trusted 3300 XL series and is manufactured in the U.S.A. It delivers precise vibration and position measurements for critical rotating machinery, helping operators detect early signs of mechanical faults before they lead to costly downtime.

Technical Specifications Breakdown

Key parameters for the 330101-48-71-20-02-CN are listed below for quick reference:

Industry Applications

This probe is well-suited for radial vibration monitoring on turbines, compressors, pumps, and other rotating equipment. The 2 mm linear range and -9 Vdc recommended gap setting allow reliable measurement of shaft displacement. The patented TipLoc molding method provides a robust bond between probe tip and body, reducing failure risks in high-vibration environments.

Installation & Setup Guidance

When installing the 330101-48-71-20-02-CN, ensure the probe tip is clean and free of debris. Use the recommended gap setting of -9 Vdc for radial vibration applications. The miniature coaxial ClickLoc connector simplifies cable attachment. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable. Maximum field wiring length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Maintenance & Reliability

The probe is designed to seal differential pressure between the tip and case using a Viton® O-ring. It is not pressure tested before shipment. For applications requiring pressure seal verification, contact the custom design department. The probe can withstand 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. Inspect the probe and cable periodically for physical damage.

Compatibility & Integration

This probe is part of the Bently Nevada 3300 XL system and is compatible with 3300 XL Proximitor sensors and monitors. The 2.0-meter cable with miniature coaxial ClickLoc connector ensures a secure connection. The probe can be ordered with an optional FluidLoc cable to prevent oil leakage through the cable interior.

Selection Guide & Purchasing Advice

When selecting a probe, consider the thread type, cable length, and connector options. The 330101-48-71-20-02-CN features a 3/8-24 UNF thread, 2.0 m cable, and miniature coaxial ClickLoc connector. For applications requiring armor, consider other options. Verify current lifecycle status and availability with AutoDCSTech before ordering. AutoDCSTech offers genuine Bently Nevada parts with expert support.

Troubleshooting & Common Issues

If the probe output is unstable, check the gap setting and ensure it is within the recommended -9 Vdc range. Verify that the cable is securely connected and not damaged. If the signal is noisy, inspect the field wiring for proper shielding and grounding. For persistent issues, contact technical support.