Bently Nevada 330101-00-79-10-02-05 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-00-79-10-02-05 is an unarmored, fully threaded 8 mm proximity probe designed as an integral component of the 3300 XL 8 mm Proximity Transducer System. This non-contacting sensor is engineered for high-precision, eddy-current-based dynamic vibration and static position measurement. Unlike standard armored variants, this configuration features an unarmored standard coaxial cable with a miniature ClickLoc connector, allowing for a lightweight and flexible installation path. It is configured with an overall case length of 7.9 inches (201 mm) and has 0.0 inches of unthreaded length, making it ideal for deep bearing housings and critical rotating machinery installations requiring extensive threaded adjustability. Certified with CSA, ATEX, and IECEx approvals, this probe is fully qualified for operation in hazardous industrial environments, including steam/gas turbines, compressors, and pump rotors.

Features

• 8 mm tip diameter proximity probe designed for reliable eddy-current displacement measurement.
• Fully threaded 3/8-24 UNF stainless steel body provides maximum depth adjustability in mounting ports.
• Ruggedized tip and robust mechanical construction designed for permanent, long-term machinery protection.
• Unarmored standard coaxial cable offers maximum flexibility for routed runs.
• Miniature coaxial ClickLoc connector provides a reliable, secure connection with minimal signal attenuation.
• Fully compatible with 3300 XL Proximitor sensors and extension cables.

Applications

This proximity probe is widely used for heavy-industry predictive maintenance and machinery protection systems, including:

• Steam and gas turbine shaft vibration and axial position monitoring.
• Rotor displacement and thrust position measurement in industrial compressors.
• Pump shaft dynamic vibration and static gap monitoring in petrochemical facilities.
• Critical rotating machinery protection in power generation, water treatment, and mining environments.

Ordering Information

The 330101 series proximity probe is a highly customizable instrument. Below is the detailed segment breakdown for this specific configuration:

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Install the probe using the appropriate gap setting per system calibration, nominally set to -9 Vdc or 1.27 mm (50 mils) to achieve a linear output response.
• Ensure the internal thread engagement in the mounting port does not exceed 0.563 inches (14.3 mm) to avoid binding the threads.
• Connect the miniature coaxial ClickLoc connector finger-tight. Do not use tools, which may damage the gold-plated surfaces and cause signal disruption.
• Observe proper grounding and shielding guidelines. The outer shield should be grounded only at the system monitor to avoid ground loop interference.

Compliance and Certifications

• CSA Class I, Division 1 and 2, Groups A, B, C, D
• ATEX Ex ia IIC T4/T5/T6 Ga intrinsically safe for Zone 0, Zone 1, and Zone 2
• IECEx intrinsically safe approvals for hazardous locations