Description

The Bently Nevada 330101-02-12-10-02-05 is a high-precision, non-contact 8 mm proximity probe designed for the 3300 XL Proximity Transducer System, featuring a 3/8-24 UNF threaded body without protective armor. This specific configuration is highly customized for applications requiring an unthreaded length of 0.2 inches, an overall case length of 1.2 inches, and a total cable length of 1.0 meter (3.3 feet). Standard coaxial cable is paired with a miniature coaxial ClickLoc connector to deliver clean, uncorrupted signal outputs to compatible Proximitor sensors. Equipped with full CSA, ATEX, and IECEx agency approvals (Option 05), this proximity probe is engineered for permanent installation in challenging hazardous industrial environments, delivering reliable eddy-current displacement and vibration feedback for critical machinery protection.

Features

• Provides non-contact, high-precision radial vibration and axial shaft position measurements.
• Features a standard unarmored 3/8-24 UNF-2A thread design, optimal for installations utilizing protective rigid conduit.
• Specifies a 0.2-inch unthreaded section and a 1.2-inch overall case length to fit precise machinery physical dimensions.
• Includes a 1.0-meter (3.3 feet) integrated standard coaxial cable terminated with a gold-plated miniature ClickLoc connector.
• Resistant to severe moisture and chemical exposure, featuring a rugged high-pressure seal at the probe tip.
• Compatible with Bently Nevada 3300 XL Proximitor Sensors (330180 series) and standard extension cables.
• Designed for permanent installation in critical rotating machinery, including turbine bearing housings and gearboxes.

Applications

• Steam and gas turbine shaft vibration and axial thermal expansion monitoring.
• Rotor axial displacement measurement in high-speed compressors, pumps, and fans.
• Critical rotating machinery protection and machinery diagnostics in power generation facilities.
• Industrial condition monitoring in oil and gas refineries, petrochemical processing plants, and water treatment systems.

Ordering Information

Technical Specifications

Installation Guidelines

• Probe Gap Calibration: Calibrate the physical spacing of the probe (typically set to 1.27 mm or 50 mils) to match the center of the dynamic linear range of the transducer loop.
• Conduit Protection: Since this model is unarmored, feed the standard coaxial cable through a dedicated metal conduit to prevent mechanical damage or environmental degradation.
• Shielding Integrity: Maintain shield grounding at the monitor rack (such as the 3500 system I/O modules) while ensuring the shield remains isolated at the probe case.
• Connector Handing: Clean probe connector contact surfaces prior to assembly. Tighten the gold ClickLoc connectors firmly by hand to guarantee proper impedance connection.

Compliance and Certifications

• Intrinsically Safe (ia): Certified to Ex ia IIC T5...T1 Ga and Ex ia IIIC T90 degC...T280 degC Dc (ATEX/IECEx); Class I, Division 1, Groups A, B, C, D (CSA).
• Non-Incendive (nA/ec): Certified to Ex nA IIC T5...T1 Gc and Ex ec IIC T5...T1 Gc; Class I, Division 2, Groups A, B, C, D.
• Environmental Protection: Tip-to-case pressure seal rated for high-differential process seals to prevent leakage.