Bently Nevada 330103-02-04-10-02-05 3300 XL 8 mm Proximity Probe

Description

Option 02 (20 mm unthreaded length), Option 04 (40 mm overall case length), and Option 10 (1.0 m total length) define the precise mechanical profile of the 330103-02-04-10-02-05 3300 XL 8 mm proximity probe. This metric threaded configuration is manufactured with M10 x 1 threads and operates without protective armor over its coaxial cable, supporting direct mounting in machinery locations where space limits armored routing. The probe is equipped with a miniature coaxial ClickLoc connector (Option 02) for connection with standard extension cables and includes Option 05 approvals, which verify its certification for hazardous areas under CSA, ATEX, and IECEx directives.

Compared to unthreaded or armored configurations within the same series, this specific model features a threaded case that allows for fine-tuning the target gap inside machine casings. The lack of outer armor reduces the overall cable envelope diameter to 3.68 mm, facilitating routing through tight internal conduits. The 1.0 m total length pairs with standard 3300 XL extension cables and 3300 XL Proximitor sensors to form a complete eddy-current measurement system.

Features

• M10 x 1 metric thread structure with 40 mm overall case length (Option 04) and 20 mm unthreaded length (Option 02).
• Unarmored 1.0 meter (3.3 feet) coaxial cable (Option 10) featuring a 3.68 mm outside diameter for internal machine routing.
• Miniature male coaxial ClickLoc connector (Option 02) without connector protectors.
• Option 05 agency approval package, certified for installation in hazardous locations under CSA, ATEX, and IECEx standards.
• Polyphenylene sulfide (PPS) probe tip with an 8.0 mm diameter for chemical and fluid resistance in industrial environments.
• AISI 303 stainless steel thread body construction providing mechanical stability and resistance to corrosion.

Applications

• Radial vibration monitoring of rotating shafts on industrial turbines, compressors, and pumps.
• Axial thrust position measurements to detect shaft displacement in gas and steam turbines.
• Phase reference (Keyphasor) speed measurements on machinery shafts.
• Machinery protection systems requiring ATEX/IECEx certified proximity sensors.

Ordering Information

Technical Specifications

Installation Guidelines

Proper gap configuration and mounting stability are essential to avoid mechanical damage or signal interference. Follow these criteria during installation:

• Thread Engagement: Ensure a maximum thread engagement of 15 mm to prevent binding or thread deformation during installation.
• Gap Setting: Set the initial mechanical probe gap to approximately 1.27 mm (50 mils), which corresponds to a nominal output of -9 Vdc on the 3300 XL Proximitor sensor for standard radial vibration targets.
• Cable Handling: Avoid bending the 3.68 mm coaxial cable to a radius of less than 25.4 mm (1.0 in) to prevent internal conductor damage. Do not route the unarmored cable over sharp edges or burrs.
• Connector Torque: Hand-tighten the miniature ClickLoc coaxial connectors. Do not use tools to torque the connectors unless pairing with a non-XL stainless steel connector, in which case a 1/8-turn with pliers is recommended.
• Grounding and Shielding: Connect the outer coaxial shield directly to the Proximitor sensor housing, and ensure the housing is electrically isolated from any local machine grounds to prevent ground loops.

Compliance and Certifications

• CSA: Certified for Class I, Division 1 and 2, Groups A, B, C, and D hazardous locations when installed per drawing 140979.
• ATEX: II 1 G Ex ia IIC T4/T5 Ga certified for explosive gas atmospheres.
• IECEx: Ex ia IIC T4/T5 Ga certified for intrinsic safety in hazardous locations.
• CE Mark: Complies with European Electromagnetic Compatibility (EMC) and Hazardous Areas (ATEX) directives.