Bently Nevada 330101-00-11-10-02-05 3300 XL 8 mm Probe with CSA, ATEX, IECEx Approvals

Selecting the Right Vibration Probe for Critical Machinery

When monitoring rotating machinery, the choice of proximity probe directly impacts measurement accuracy and system reliability. The Bently Nevada 330101-00-11-10-02-05 offers a proven solution for radial vibration and position measurements. This 3300 XL 8 mm probe is designed for demanding environments where robust construction and precise sensing are essential.

Product Overview

The Bently Nevada 330101-00-11-10-02-05 is a 3300 XL 8 mm probe with a 3/8-24 UNF thread and no armor. It features a 1.0 meter (3.3 feet) total length and a miniature coaxial ClickLoc connector with standard cable. This probe carries CSA, ATEX, and IECEx approvals, making it suitable for hazardous area installations. The patented TipLoc molding method ensures a robust bond between the probe tip and body, while the CableLoc design provides 330 N (75 lbf) pull strength for secure cable attachment.

Technical Specifications Breakdown

Key parameters for the 330101-00-11-10-02-05 are listed below for quick reference:

Industry Applications

Typical uses include:

• Steam and Gas Turbines: The 8 mm probe provides a thicker encapsulation of the probe coil in molded PPS plastic, offering enhanced ruggedness against physical abuse in high-vibration environments.
• Compressors and Pumps: The stainless steel case (AISI 303 or 304 SST) resists corrosion, while the optional FluidLoc cable prevents oil leakage through the cable interior.
• Hazardous Area Installations: With CSA, ATEX, and IECEx approvals, the probe meets safety requirements for explosive atmospheres, reducing compliance risks.

Installation & Setup Guidance

For optimal performance, follow these engineering best practices:

• Thread Engagement: The probe case thread is 3/8-24. Maximum length of thread engagement is 0.563 in. Use the recommended torque of 11.2 N•m (100 in•lbf) for standard forward mounted probes.
• Gap Setting: For radial vibration, set the recommended gap to -9 Vdc, approximately 1.27 mm (50 mils).
• Field Wiring: Use 3 conductor shielded triad cable, 0.2 to 1.5 mm² (16 to 24 AWG). Maximum field wiring length is 305 meters (1,000 feet) between the Proximitor Sensor and the monitor.

Maintenance & Reliability

Inspect the probe and cable periodically for physical damage, especially near the tip and connector. 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. The probe shows 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.

Compatibility & Integration

The 3300 XL 8 mm probe is designed for use with Bently Nevada 3300 XL Proximitor Sensors and compatible monitoring systems. The miniature coaxial ClickLoc connector ensures secure, quick connections. For extended temperature range applications, an ETR probe option is available (not included in this model).

Selection Guide & Purchasing Advice

When evaluating this probe, consider the total system length and agency approval requirements. For non-hazardous areas, other approval options may be selected. Contact AutoDCSTech to verify current lifecycle status and availability before ordering. Our team can help match this probe to your specific machine train and monitoring system needs.