Bently Nevada 330103-00-03-10-12-CN 3300 XL 8 mm Proximity Probe

Product Overview

The Bently Nevada 330103-00-03-10-12-CN is a 3300 XL 8 mm proximity probe engineered for accurate, non-contact measurement of shaft vibration and position. This probe is essential for protecting critical rotating assets such as turbines, compressors, and pumps. With a polyphenylene sulfide (PPS) tip and stainless steel case, it withstands harsh industrial environments. The 1.0 meter (3.3 feet) FluidLoc cable with miniature coaxial ClickLoc connector ensures reliable signal transmission.

Technical Specifications Breakdown

Key parameters for the 330103-00-03-10-12-CN are listed below for quick reference:

Industry Applications

This proximity probe is widely used in rotating machinery monitoring for vibration and thrust position measurement. In steam turbines, it detects early signs of shaft instability, preventing catastrophic failure. For centrifugal compressors, the 330103-00-03-10-12-CN provides reliable data for condition-based maintenance, reducing unplanned downtime. Its robust construction suits oil and gas environments where temperature extremes and contaminants are common.

Installation & Setup Guidance

Proper installation is critical for accurate readings. Mount the probe with the M10 x 1 thread into a pre-drilled hole, ensuring the maximum thread engagement of 15 mm is not exceeded. Use the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration monitoring. Field wiring should use 3-conductor shielded triad cable with tinned ends, sized 0.2 to 1.5 mm² (16 to 24 AWG). The maximum cable length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Maintenance & Reliability

Inspect the probe cable and connector periodically for wear or damage. The probe is designed to seal differential pressure between 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 standard probe operates reliably from -52°C to +177°C (-62°F to +350°F). Relative humidity below 93% ensures less than 3% change in Average Scale Factor (ASF) per IEC 68-2-3.

Compatibility & Integration

The 330103-00-03-10-12-CN integrates with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. For intrinsically safe installations, use zener barriers per drawing 141092 or galvanic isolators to achieve Class I, Zone 0 ratings. For non-incendive circuits, follow drawing 140979 for Class I, Zone 2 compliance.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify the total length, thread type, and connector option match your system. The 330103-00-03-10-12-CN is a 1.0 meter probe with M10 x 1 thread and ClickLoc connector. Contact AutoDCSTech for availability and lifecycle status before ordering. Our team can help confirm compatibility with your existing Bently Nevada monitoring equipment.