Bently Nevada 330101-00-75-20-02-05 3300 XL 8 mm Probe

Bently Nevada 330101-00-75-20-02-05 3300 XL 8 mm Probe – Robust Vibration Sensing for Critical Machinery

As a maintenance engineer, you know that reliable vibration monitoring is essential to prevent unplanned downtime. The Bently Nevada 330101-00-75-20-02-05 is a 3300 XL 8 mm probe designed for demanding industrial environments. This probe uses a 3/8-24 UNF thread and comes without armor, making it suitable for a wide range of installation configurations.

Technical Specifications Breakdown

Key parameters for the 330101-00-75-20-02-05 are listed below for quick reference:

Industry Applications – Where Reliability Matters

This 8 mm probe is engineered for continuous vibration monitoring on rotating machinery such as turbines, compressors, and pumps. The patented TipLoc molding method ensures a robust bond between the probe tip and body, reducing the risk of sensor failure in high-vibration environments. The CableLoc design provides 330 N (75 lbf) pull strength, securing the cable against accidental pulls during maintenance. For applications where oil leakage through the cable interior is a concern, the optional FluidLoc cable option prevents such leaks, enhancing machine integrity.

Installation & Setup Guidance

When installing the 330101-00-75-20-02-05, ensure the probe tip is clean and free of debris. Use the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration measurements. Field wiring should use 3-conductor shielded triad cable (0.2 to 1.5 mm² or 16 to 24 AWG) with tinned conductors. Maximum field wiring length between the Proximitor Sensor and monitor is 305 meters (1,000 feet). Refer to the frequency response graphs for signal rolloff at high frequencies when using longer cable runs.

Maintenance & Reliability

Inspect the probe and cable periodically for physical damage or wear. The probe case is made of AISI 303 or 304 stainless steel, providing corrosion resistance in harsh environments. The Viton® O-ring seal maintains differential pressure integrity, but probes are not pressure tested before shipment. If your application requires pressure seal testing, contact the custom design department. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure.

Compatibility & Integration

This probe is part of the Bently Nevada 3300 XL series and is compatible with 3300 XL Proximitor Sensors and extension cables. The miniature coaxial ClickLoc connector ensures a secure, quick connection. The probe’s nominal DC resistance (RPROBE) is 7.88 ± 0.50 Ω for the 2.0-meter length, and the extension cable capacitance is 69.9 pF/m (21.3 pF/ft) typical.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify the thread size (3/8-24 UNF) and overall length requirements. The 330101-00-75-20-02-05 is available at AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering. We stock genuine Bently Nevada parts to ensure your machinery monitoring system operates at peak performance.