Description

Providing precise, non-contact measurement of shaft vibration and position, the Bently Nevada 330101-33-60-10-02-00 is an unarmored 8 mm Proximity Probe engineered for the 3300 XL proximity transducer system. This specific configuration features a 3.3-inch unthreaded length combined with a 6.0-inch overall case length and a standard 3/8-24 UNF thread structure. It comes with a 1.0-meter (3.3 feet) total cable length terminated with a miniature coaxial ClickLoc connector. Tailored for applications where agency approvals are not required (Option 00), this probe configuration is optimized for permanent installation inside machinery or within dedicated protective conduit, separating it from armored or hazardous-area certified models.

Because this configuration has a total length of 1.0 meter, it requires a matching extension cable (typically 4.0 meters for a 5-meter system or 8.0 meters for a 9-meter system) and a 3300 XL Proximitor Sensor configured for the same system length. The probe operates on the eddy-current principle, emitting a high-frequency radio frequency signal into the target area to detect minimal shaft displacement, allowing for early detection of potential failures such as rotor misalignment, bearing wear, and unbalance.

Features

• Standard 8 mm tip diameter optimized for non-contact eddy-current displacement measurements.
• Rugged tip construction and high-grade stainless steel probe body built to withstand harsh machine casing environments.
• Standard unarmored design provides maximum flexibility for routing through machine conduits or internal paths.
• Miniature coaxial ClickLoc connector offers a secure, vibration-resistant electrical coupling.
• Robust pressure sealing mechanism using a high-quality Viton O-ring to prevent oil and gas migration.
• Seamless integration with standard 3300 XL series Proximitor sensors and standard extension cables.

Applications

• Shaft radial vibration and axial position monitoring on high-speed rotating machinery.
• Rotor displacement and thrust measurements in steam turbines, gas turbines, and industrial compressors.
• Permanent machinery protection systems for critical pumps, fans, blowers, and gearboxes.
• Hydroelectric and thermal power generation turbine condition monitoring chains.

Ordering Information

Technical Specifications

Connections and Interfaces

The probe cable is terminated with a gold-plated miniature coaxial ClickLoc connector. This connector must be connected finger-tight to a standard 3300 XL extension cable to ensure proper high-frequency signal transmission and mechanical sealing inside the vibration monitoring loop.

Installation Guidelines

• Mount the probe with the appropriate probe gap per system calibration (typically 1.27 mm or 50 mils for a standard AISI 4140 steel target).
• Ensure the unthreaded length (3.3 inches) and overall case length (6.0 inches) align correctly with your bearing housing design to prevent contact between the probe tip and target shaft.
• Avoid exceeding the maximum thread engagement limit of 0.563 inches for standard 3/8-24 UNF threads to prevent binding.
• Route the standard coaxial cable using proper shielding, conduit, and grounding techniques to minimize electromagnetic and radio-frequency interference (EMI/RFI).

Compliance and Certifications

This specific configuration (Option 00) does not carry hazardous area certifications. For applications in classified or explosive atmospheres requiring certifications such as ATEX, IECEx, or CSA, please select the variant with the -05 Agency Approval Option.