Bently Nevada 330101-01-29-10-01-05 3300 XL 8 mm Proximity Probe

Description

The 330101-01-29-10-01-05 is a high-performance 3300 XL 8 mm proximity probe engineered by Bently Nevada for reliable, non-contact machinery protection and condition monitoring. This unarmored probe operates on the eddy-current principle to measure shaft vibration, displacement, and axial position in critical rotating equipment. What distinguishes this specific configuration is its customized hardware segment combination: an unthreaded length of 0.1 inches, an overall case length of 2.9 inches, a total length of 1.0 meter (3.3 feet), a standard coaxial cable terminated with a Miniature ClickLoc connector including a pre-installed connector protector, and full CSA, ATEX, and IECEx hazardous area approvals. This precise combination is ideal for permanent mounting on machinery where space is confined and standard non-armored cables are routed inside protective conduits or junction boxes.

Designed with a rugged 8 mm tip and a corrosion-resistant stainless steel threaded body, the probe performs with high stability and accuracy over a wide range of industrial temperatures. It integrates seamlessly into standard 3300 XL monitoring systems, pairing directly with 330180 series Proximitor sensors and standard extension cables. This model is commonly deployed on critical machinery assets—including steam and gas turbines, high-pressure pumps, centrifugal compressors, and gearboxes—to deliver continuous position and dynamic vibration feedback, preventing unexpected mechanical failures and optimizing machinery uptime.

Features

• 8 mm tip diameter proximity probe optimized for dynamic non-contact eddy-current displacement measurements.
• Stainless steel 3/8-24 UNF threaded casing without protective outer armor, allowing for clean threaded installation.
• Standard coaxial cable terminated with a Miniature ClickLoc coaxial connector and an integrated connector protector.
• Direct system compatibility with Bently Nevada 3300 XL Proximitor 330180 series sensors and 3500 rack monitoring configurations.
• Factory-calibrated to deliver a highly accurate linear scale factor of 7.87 V/mm (200 mV/mil).

Applications

• Radial vibration and shaft position monitoring in heavy industrial turbines.
• Axial thrust displacement sensing in centrifugal and axial compressors.
• Rotor movement and oil-film bearing wear detection in high-power utility pumps.
• Permanent vibration monitoring on critical machinery within explosive gas or dust environments.

Ordering Information

Technical Specifications

Installation Guidelines

• Adjust the probe gap per the monitoring system specifications, typically setting a target gap near 1.27 mm (50 mils) to establish the standard -10 Vdc baseline output.
• Ensure that the minimum unthreaded length is correct for the installation thickness to avoid thread binding.
• Route transmission cables with proper industrial shielding and grounding techniques to prevent high-frequency electrical noise.
• Fully secure the ClickLoc connector, making sure the connector protector is correctly seated over the terminal junction to block moisture and chemical entry.

Compliance and Certifications

• CSA certified for North American hazardous areas.
• ATEX and IECEx certified for Zone 0, Zone 1, and Zone 2 hazardous areas.
• Certified intrinsically safe Ex ia IIC for gas-hazardous environments and Ex ia IIIC for dust-hazardous environments.