Description

The Bently Nevada 330101-00-12-10-02-00 is an unarmored 8 mm proximity probe featuring a standard 3/8-24 UNF thread, configured specifically with a 0.0 in unthreaded length and a 1.2 in overall case length. Featuring a 1.0 meter (3.3 feet) standard coaxial cable with a miniature ClickLoc connector, this specific configuration provides a streamlined solution without external armor or an integrated connector protector. Because it carries the agency approval code "00", this probe is optimized for general-purpose, non-hazardous industrial environments where high-performance machinery vibration and shaft position monitoring are required without specialized hazardous area certifications.

Operating on the eddy-current physical principle, this proximity probe delivers non-contact measurements of static displacement (shaft position) and dynamic vibration. It is fully integrated into the 3300 XL monitoring chain, pairing seamlessly with a 330180 series Proximitor sensor and a standard extension cable. When positioned next to a rotating or reciprocating shaft, the probe transmits a continuous voltage output directly proportional to the gap distance between the probe tip and the observed target surface. This level of precise measurement is essential for identifying early indicators of machinery fatigue, misalignment, and bearing wear in heavy industrial machinery.

Features

• 8 mm High-Stability Tip: Engineered for eddy-current displacement measurements with maximum stability across standard operating temperatures.
• Fully Threaded 1.2-Inch Case: Standard fractional thread with 0.0 in unthreaded length, allowing maximum positioning flexibility inside threaded machine casings.
• Unarmored Coaxial Cable: Uses a lightweight and highly flexible FEP-insulated coaxial cable, providing a clean path through protected conduit systems.
• Miniature ClickLoc Connector: Gold-plated contact surfaces ensure secure, low-resistance connection with quick-connect functionality.
• Complete Interchangeability: No bench calibration required when swapping parts with other same-length 3300 XL 8 mm system components.

Applications

• Continuous radial shaft vibration and axial position monitoring in steam and gas turbines.
• Rotor displacement and thrust position measurement in critical centrifugal compressors.
• Bearing housing displacement and shaft diagnostics in large industrial pumps.
• Machinery protection and diagnostics in non-hazardous turbine supervisory instrumentation (TSI) suites.
• Keyphasor reference and rotational speed measurements on high-speed machinery.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure consistent physical performance and protect signal integrity, follow these standard practices during installation:

• Avoid Thread Binding: Do not exceed a maximum thread engagement of 0.563 inches (14.3 mm) in standard mounting configurations to avoid binding or damaging the threads.
• Proper Cable Routing: Secure and route the unarmored coaxial cable through dedicated, rigid conduits to protect it from mechanical impacts, sharp metal corners, and excessive ambient machinery movement.
• Respect Bend Limits: Maintain the minimum cable bend radius of 25.4 mm (1.0 in) at all times to prevent damage to the internal triaxial conductors.
• Maintain Cleanliness: Keep ClickLoc connectors free of dust, grease, and conductive fluids before mating. Hand-tighten the connectors until they "click" to secure the physical joint.
• Single-Point Shield Grounding: Ensure the probe signal cable shield is isolated from the machinery ground and terminated properly at the Proximitor sensor bracket to minimize electromagnetic noise.