Description

The Bently Nevada 330101-00-20-05-01-05 is a high-reliability eddy-current 8 mm proximity probe designed for non-contact shaft vibration and displacement measurements in rotating machinery. Part of the industry-proven 3300 XL series, this specific configuration features a fully threaded 2.0-inch case without armor and is equipped with a miniature coaxial ClickLoc connector with a connector protector. Unlike basic standard configurations, this probe provides enhanced environmental protection at the connector junction, making it excellent for environments prone to oil, water, or chemical exposure.

Features

• Non-contact eddy-current technology provides highly accurate displacement and vibration feedback.
• ClickLoc coaxial connector with integrated connector protector shields electrical contacts against fluid ingress.
• Fully threaded 3/8-24 UNF-2A casing (0.0 inches unthreaded) allows for optimal installation flexibility in tight clearances.
• 0.5-meter standard coaxial cable length for short-run connections to extension cables.
• Rugged polyphenylene sulfide (PPS) tip construction designed to handle harsh industrial process conditions.

Applications

This proximity probe is ideal for critical rotating machinery protection systems in power generation, oil and gas, and petrochemical refining. Typical applications include:

• Steam and gas turbine shaft vibration monitoring.
• Compressor and high-pressure pump rotor displacement measurement.
• Thrust bearing wear and axial shaft position tracking.
• Hydroelectric generator shaft runout analysis.

Ordering Information

The ordering code 330101-00-20-05-01-05 is segmented based on physical dimensions, cabling, and hazardous area approvals as defined by the Bently Nevada factory specification:

Technical Specifications

Installation Guidelines

Ensure reliable and error-free operation of your proximity probe chain by observing these standard engineering recommendations:

• Probe Air Gap: Calibrate the physical air gap between the probe tip and target material to match the system linear range (typically 2.0 mm or 80 mils, corresponding to a nominal voltage of -10 VDC).
• Cable Protection: Route probe cabling through dedicated conduit or cable trays. Avoid twisting, stretching, or bending below the minimum bend radius of 25.4 mm.
• Proper Grounding: Connect shields in accordance with site vibration monitoring standards to mitigate high-frequency electromagnetic noise.

Compliance and Certifications

This configuration meets international explosion-proof and intrinsically safe design criteria when paired with matching certified monitors and barriers:

• CSA: Intrinsic Safety and Non-incendive ratings for Class I, Division 1 and 2 locations.
• ATEX/IECEx: Certified for Zone 0, 1, and 2 explosive atmospheres with appropriate barrier setups.