Bently Nevada 330101-23-38-10-02-00 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-23-38-10-02-00 is an 8 mm proximity probe configuration belonging to the 3300 XL Proximity Transducer System. This specific model features a 3/8-24 UNF thread pattern without mechanical armor, a 2.3-inch unthreaded length, and a 3.8-inch overall case length. It is supplied with a 1.0-meter integrated coaxial cable terminated with a miniature ClickLoc connector. Engineered for non-contact vibration and shaft position measurements, it acts as an eddy-current sensor that pairs with a 3300 XL Proximitor sensor and an extension cable to monitor fluid-film bearing housings on critical industrial rotating machinery.

Compared to other variants in the 3300 XL family that utilize armored cables or integrated connector protectors, this unarmored standard-cable configuration is optimized for installations where cables are run through external protective conduit. This design offers greater routing flexibility through tight clearances, while omitting unnecessary armor weight. The 330101-23-38-10-02-00 provides complete interchangeability with other 3300 XL system elements without requiring tedious bench recalibration, and is also backward compatible with legacy non-XL 3300 series 5 mm and 8 mm components.

Features

• Proximity probe with an 8 mm tip diameter designed for precise non-contact displacement measurements.
• Features a 2.3-inch unthreaded length and a 3.8-inch overall case length for precise positioning relative to the observed target.
• Equipped with a 1.0-meter integrated standard coaxial cable without heavy stainless steel armoring.
• Terminated with a miniature gold-plated coaxial ClickLoc connector to ensure highly secure signal transmission.
• Robust casing constructed with high-grade stainless steel for enduring harsh industrial operating environments.
• Broad operating temperature range from -52 degC to +177 degC for both the probe tip and the standard cable.

Applications

The 330101-23-38-10-02-00 proximity probe is typically deployed in heavy industrial environments to measure radial vibration, axial position, and speed metrics. Key application fields include:

• Steam turbines and gas turbine shaft vibration and displacement monitoring.
• Centrifugal compressors, pump rotor displacement, and generator bearing protection.
• Keyphasor reference and phase angle measurements on high-speed rotating machinery.
• Safe-area installations where external conduits provide mechanical protection for the transducer cabling.

Ordering Information

Technical Specifications

Connections and Interfaces

The integrated coaxial cable is terminated with a miniature gold-plated male coaxial ClickLoc connector. This connector matches with a 3300 XL extension cable to form a complete 5-meter or 9-meter transducer circuit. The connection should be made finger-tight to secure it properly without damaging the gold-plated conductors.

Installation Guidelines

• Adjust the unthreaded length (2.3 inches) so that it is properly seated in the bracket or sleeve, ensuring that the threaded body does not bottom out prematurely.
• Establish the correct probe gap by monitoring the output voltage of the Proximitor sensor; a reading of -9 Vdc indicates a nominal gap setting of 1.27 mm (50 mils).
• Ensure the coaxial cable is routed through a dedicated, grounded protective conduit to shield the dynamic electrical signal from external electromagnetic interference (EMI).
• Observe a minimum cable bend radius of 25.4 mm (1.0 inch) to protect the internal conductor from damage.

Compliance and Certifications

This standard configuration (Option 00) is intended for use in safe-area, non-hazardous industrial environments. It complies with all applicable standard CE requirements for electromagnetic compatibility and RoHS standards when installed in accordance with manufacturer specifications as a complete measurement chain.