Bently Nevada 330101-00-24-10-02-00 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-00-24-10-02-00 is an 8 mm proximity probe that is a core component of the 3300 XL 8 mm Proximity Transducer System. Operating on the eddy-current principle, this probe provides high-precision, non-contact measurement of shaft vibration and dynamic position in critical rotating machinery. Unlike armored configurations, this specific variant features a flexible, unarmored standard coaxial cable. It is configured with a fully threaded 2.4-inch case (0.0 inches of unthreaded length) and a 3/8-24 UNF thread, allowing for versatile depth adjustments within standard bearing housings. Equipped with a standard 1.0-meter (3.3 feet) cable and terminated with a miniature gold ClickLoc coaxial connector, this configuration is optimized for standard applications where connector protectors and hazardous area agency approvals are not required. It integrates directly with 330180 series Proximitor sensors and standard extension cables to transmit clean, low-noise displacement data to machine protection systems such as the Bently Nevada 3500 rack.

Features

• Non-contact eddy-current technology prevents physical wear and maintains long-term calibration stability.
• Fully threaded 3/8-24 UNF stainless steel case provides robust mechanical support and flexible depth adjustments.
• Polyphenylene sulfide (PPS) probe tip offers superior resistance to chemical attack, industrial oils, and humidity.
• Miniature ClickLoc coaxial connector delivers a secure, positive-lock connection with low signal impedance.
• Unarmored standard coaxial cable ensures optimal flexibility for routing through standard protective conduits.

Applications

The 330101-00-24-10-02-00 proximity probe is designed for heavy-duty industrial machinery protection, particularly in power generation and petrochemical sectors. Primary applications include:

• Radial shaft vibration monitoring on high-speed steam and gas turbines.
• Axial shaft position and thrust bearing wear measurement on compressors and expanders.
• Rotor dynamic displacement monitoring in critical industrial pumps.
• Continuous condition monitoring of rotating elements to prevent catastrophic mechanical failure.

Ordering Information

The specific configuration of this proximity probe is defined by its multi-segment orderable code, detailed in the table below:

Technical Specifications

Installation Guidelines

To secure reliable operation and accurate measurements, technical engineers must observe the following installation protocols:

• Calibration Gap: Adjust the probe to a physical gap of approximately 1.27 mm (50 mils) from the target material, corresponding to an electrical output of -9 Vdc, placing it at the midpoint of the linear range.
• Cable Isolation: Coaxial cables must be routed in isolated, grounded conduits or cable trays, keeping them separate from high-current power cables to prevent electromagnetic noise induction.
• Connector Hand-Tightening: Gold ClickLoc connectors should be joined finger-tight. Avoid using heavy pliers, as excessive torque can damage the internal gold contacts or strip threads.
• Thread Engagement Limits: For standard 3/8-24 UNF external threads, limit maximum internal thread engagement to 0.563 inches to avoid mechanical binding during installation.