Bently Nevada 330101-00-72-20-02-00 3300 XL 8 mm Probe

Technical Specifications Breakdown

Key parameters for the 330101-00-72-20-02-00 are listed below for quick reference:

Industry Applications

Steam Turbine Shaft Monitoring

In power generation, steam turbines operate at high speeds and temperatures. The 3300 XL 8 mm Probe provides a linear range of 2 mm (80 mils) and a recommended gap setting of -9 Vdc for radial vibration measurement. Its PPS tip and stainless steel case withstand temperatures up to +177°C, ensuring reliable data collection even near hot turbine casings.

Compressor Protection in Oil & Gas

Centrifugal compressors in refineries require continuous vibration monitoring to prevent surge and bearing wear. The probe's patented TipLoc and CableLoc designs provide 330 N (75 lbf) pull strength, reducing the risk of cable detachment in high-vibration environments. The 2.0 meter cable with miniature coaxial ClickLoc connector simplifies installation in tight spaces.

Installation & Setup Guidance

For optimal performance, mount the probe with the recommended gap setting of -9 Vdc, corresponding to approximately 1.27 mm (50 mils) from the target. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a 3-conductor shielded triad cable. Maximum field wiring length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet). Ensure the probe tip is clean and free of debris before installation.

Maintenance & Reliability

The probe's robust design minimizes maintenance needs. Inspect the probe and cable periodically for physical damage, especially in high-temperature or high-humidity environments. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure.

Preventing Vibration Monitoring Failures with the Bently Nevada 330101-00-72-20-02-00

In rotating machinery, undetected shaft vibration can lead to catastrophic bearing failure, unplanned downtime, and costly repairs. The Bently Nevada 330101-00-72-20-02-00 3300 XL 8 mm Probe addresses this challenge by providing precise, reliable proximity sensing for critical asset protection. This probe is engineered to withstand harsh industrial environments while delivering consistent performance.

Compatibility & Integration

This probe is part of the 3300 XL system and is compatible with Bently Nevada Proximitor Sensors and monitors. The miniature coaxial ClickLoc connector ensures a secure, quick connection. For extended temperature range applications, the probe tip can operate up to +218°C and the cable up to +260°C.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify the thread type (3/8-24 UNF), overall case length (7.2 in), and total cable length (2.0 meters). The 330101-00-72-20-02-00 is available from AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering.