Bently Nevada 330105-02-12-10-12-00 3300 XL 8 mm Reverse Mount Proximity Probe

Description

Option 02 (0.2 in unthreaded length) and Option 12 (FluidLoc cable with miniature ClickLoc connector) specify this 3300 XL 8 mm reverse mount probe configuration — 330105-02-12-10-12-00. This specific assembly is a threaded reverse mount proximity probe featuring a 1.0 meter total length and 3/8-24 UNF threads, designed to fit into matching sleeve arrangements on rotating machinery. The integration of FluidLoc cable technology prevents process liquids or lubricating oils from migrating along the interior of the cable jacket and bypassing the containment seal, which differentiates this configuration from standard unarmored coaxial cable versions like option 02.

This probe operates as a non-contacting transducer within the 3300 XL 8 mm system, measuring static position and dynamic shaft vibration. By operating on eddy-current principles, it tracks target movement relative to the probe tip without physical contact. The reverse-mount configuration is typically selected when installation space is restricted on the exterior of the machine housing, allowing the probe to be threaded into place from the inner side of a sleeve or bracket. It couples with a 3300 XL extension cable and a Proximitor sensor of corresponding system lengths.

Features

• Unthreaded Length: 0.2 in (5.1 mm) specified by Option 02.
• Overall Case Length: 1.2 in (30.5 mm) specified by Option 12.
• Total Cable Length: 1.0 meter (3.3 feet) specified by Option 10.
• FluidLoc Cable: Option 12 includes a miniature ClickLoc coaxial connector and FluidLoc cable jacket, blocking leakage of fluids through the cable body.
• Agency Approval: Option 00 specifies that hazardous area approvals are not required.
• Threaded Housing: Standard 3/8-24 UNF-2A reverse mount body configuration.
• Physical Strength: Thick encapsulation of the coil in the molded PPS plastic probe tip for high structural durability.

Applications

• Industrial rotating machinery including turbines, compressors, generators, and large scale pumps.
• Restricted-space mounting applications requiring reverse-mount probe entry.
• Environments exposed to turbine oil, lubricants, or high moisture where fluid migration through the cable must be prevented.
• Shaft radial vibration, axial position, and Keyphasor speed measurements on fluid-film bearing equipment.

Ordering Information

Technical Specifications

Installation Guidelines

• Thread Engagement: The maximum thread engagement length is 0.563 in (14.3 mm) for the 3/8-24 UNF case thread to prevent binding.
• Connector Connection: Gold-plated miniature ClickLoc coaxial connectors must be finger-tightened. Do not use pliers or other tools when mating ClickLoc-to-ClickLoc components.
• Cable Routing: Maintain proper support and avoid sharp bends in the coax. The minimum bend radius should conform to standard coaxial installations to protect internal signal integrity.
• Fluid Protection: Check that the integral Viton O-ring is properly seated during reverse insertion to establish the case seal.

Compliance and Certifications

• Backward Compatibility: Fully interchangeable with standard, non-XL Bently Nevada 3300 series 5 mm and 8 mm components.
• Agency Approval: Option 00 indicates that hazardous area approvals are not required.