Bently Nevada 330101-39-67-10-12-05 3300 XL 8 mm Probe

Product Overview

The Bently Nevada 330101-39-67-10-12-05 is a 3300 XL 8 mm Probe with a 3/8-24 UNF thread, designed without armor for non-contact vibration and position measurement. This probe is essential for protecting rotating machinery such as turbines, compressors, and pumps by providing accurate displacement data. The 3300 XL series incorporates patented TipLoc and CableLoc technologies, ensuring a robust bond between the probe tip and body, and a pull strength of 330 N (75 lbf) for enhanced cable security. The 8 mm probe diameter offers a thicker PPS plastic encapsulation, making it more rugged against physical abuse. With approvals including CSA, ATEX, and IECEx, this probe is suitable for hazardous environments.

Technical Specifications Breakdown

Key parameters for the 330101-39-67-10-12-05 are listed below for quick reference:

Industry Applications

For example, in a steam turbine train, the 330101-39-67-10-12-05 provides precise shaft vibration readings, enabling early detection of imbalance or misalignment. In a centrifugal compressor, its 2 mm linear range and high sensitivity (7.87 V/mm) allow accurate measurement of rotor displacement, preventing catastrophic failure. The FluidLoc cable option prevents oil leakage through the cable interior, making it suitable for lubricated environments.

Installation & Setup Guidance

When installing the 3300 XL 8 mm probe, ensure the target surface is clean and within the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a 3-conductor shielded triad cable, keeping the length between the Proximitor Sensor and monitor under 305 meters (1,000 feet) to avoid signal rolloff. The miniature coaxial ClickLoc connector simplifies cable attachment, but verify the connector is fully seated to maintain the 330 N pull strength.

Maintenance & Reliability

The probe's PPS tip and stainless steel case resist harsh conditions, but regular inspection of the cable and connector is recommended. The probe is designed to seal differential pressure via a Viton O-ring, though it is not pressure tested before shipment; contact the custom design department if pressure testing is required. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. The probe's humidity resistance is verified with less than a 3% change in Average Scale Factor after 56 days at 93% humidity per IEC 68-2-3.

Compatibility & Integration

This probe is part of the Bently Nevada 3300 XL system and is compatible with 3300 XL Proximitor Sensors and monitors. For standard 5 or 1 meter systems, the incremental scale factor is 7.87 V/mm ± 5% over the linear range. If using a 9 meter system, the tolerance expands to ± 6.5%. The probe's output is designed for direct connection to Bently Nevada monitoring systems, ensuring seamless integration for vibration and position measurements.

Selection Guide & Purchasing Advice

When selecting a probe, consider the thread size (3/8-24 UNF), total length (1.0 meter), and the need for armor (this model is without armor). For applications requiring higher temperature resistance up to 218°C at the tip, consider the Extended Temperature Range probe. The 330101-39-67-10-12-05 is available now at AutoDCSTech, your trusted source for industrial automation parts. Please verify current lifecycle status and availability with AutoDCSTech before ordering.