Description

This specific configuration of the Bently Nevada 330101-25-44-10-02-05 3300 XL 8 mm Proximity Probe features a 2.5-inch unthreaded section on a 4.4-inch overall case length with 3/8-24 UNF threads, lacking armor protection. It is equipped with a 1.0-meter (3.3 feet) standard cable terminated with a miniature coaxial ClickLoc connector (without a connector protector) and is fully certified with CSA, ATEX, and IECEx agency approvals for hazardous environments. Operating as a critical component in the 3300 XL 8 mm Proximity Transducer System, this non-contact eddy-current sensor provides high-accuracy shaft displacement and vibration measurements for critical rotating machinery protection. It pairs seamlessly with 3300 XL extension cables and 330180 series Proximitor sensors, providing reliable machinery diagnostics within 3500 monitoring racks and other industrial turbine protection systems.

Features

• Standard 3/8-24 UNF threaded probe case without protective armor for direct-mount applications.
• 2.5-inch unthreaded length combined with a 4.4-inch overall case length.
• 1.0-meter (3.3 feet) integrated standard cable with a premium miniature coaxial ClickLoc connector.
• CSA, ATEX, and IECEx hazardous area certifications for explosive atmosphere installations.
• Robust non-contact design measures eddy-current displacement with minimal target crosstalk and excellent thermal stability.

Applications

The 330101-25-44-10-02-05 probe is primarily deployed in high-reliability industrial machinery protection environments, including:

• Steam and gas turbine shaft vibration and axial position monitoring.
• Rotor displacement and radial vibration tracking in high-speed compressors.
• Bearing oil film clearance and structural motion measurement in critical industrial pumps.
• Continuous condition monitoring of rotating assets in power generation, oil and gas, and petrochemical plants.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure optimal measurement accuracy and longevity of the transducer system, follow these general installation recommendations:

• Probe Gap Calibration: Mount the probe with the precise mechanical gap (typically 1.27 mm or 50 mils) as required by the associated 3300 XL Proximitor sensor calibration curves.
• Cable Routing: Protect the 1.0-meter integrated probe cable from physical damage and route it using proper conduit. Ensure that the probe-to-extension cable connection is mechanically secured and insulated from machine ground.
• Grounding: Follow Bently Nevada system wiring practices (e.g., drawing 141092 for hazardous area installations) by grounding the shield at the monitor rack or barrier panel. Do not ground the cable shield at both ends.
• Thread Engagement: Avoid exceeding standard thread engagement guidelines (maximum 0.563 inches for 3/8-24 UNF threads) to prevent binding or mechanical damage to the probe housing.

Compliance and Certifications

This specific probe configuration meets rigorous international standards for safety and environmental performance, certified by option 05:

• CSA: Certified for Class I, Division 1 and 2, Groups A, B, C, D; Class II, Groups E, F, G; Class III.
• ATEX/IECEx: Certified for Zone 0 (Ex ia IIC T5...T1 Ga) and Zone 2 (Ex nA/ec IIC T5...T1 Gc) when installed per approved wiring diagrams.
• CE Mark: Fully compliant with applicable European Union directives for industrial machinery and EMC.