Description

The Bently Nevada 330101-00-28-10-12-CN is an unarmored 8 mm proximity probe engineered for high-precision, non-contact shaft vibration and displacement measurements in critical industrial machinery [Traits]. This specific configuration of the 3300 XL 8 mm Proximity Transducer System features a FluidLoc cable (option code 12), which prevents oil, lubricants, and other process liquids from leaking out of the bearing housing through the cable's interior. Lacking external stainless steel armor, this probe is optimized for installations where cabling is already routed through external protective conduits or within machine enclosures. The 3/8-24 UNF threaded body has an unthreaded length of 0.0 inches, meaning the 2.8-inch case is fully threaded to permit highly adjustable, secure gapping inside the machine housing. The probe's total physical length is 1.0 meter. Carrying the certified -CN suffix, this transducer includes the complete China hazardous area approval package, certifying its design for explosive environments under NEPSI and CCC regulations.

Features

• FluidLoc Cable Technology: Incorporates a specialized internal sealing structure that stops oil and process fluids from migrating through the center of the coaxial cable, protecting dry terminal areas and auxiliary electrical enclosures.
• Unarmored Mechanical Design: Features a robust, standard unarmored coaxial cable sheath, allowing high flexibility and simpler routing in standard conduit pathways or protected machine structures.
• Fully Threaded 3/8-24 UNF Case: Configured with a 0.0-inch unthreaded section (AA: 00) and a 2.8-inch overall case length (BB: 28) for maximum thread engagement and easy adjustment during calibration.
• Gold-Plated ClickLoc Connectors: Corrosion-resistant ClickLoc connectors slide together and lock securely with standard finger-tight torque, ensuring mechanical reliability without specialized tools.
• Rugged Material Construction: Constructed with a polyphenylene sulfide (PPS) probe tip and a stainless steel casing to deliver superior durability and chemical resistance in hot, oily industrial environments.
• High Interchangeability: Fully compatible with the 3300 XL monitoring chain, including standard Proximitor 330180 series sensors [Traits] and standard 1.0-meter calibration curves.

Applications

• Continuous radial shaft vibration and axial position monitoring in steam and gas turbines [Traits].
• Rotor displacement and thrust position sensing on high-speed industrial compressors and pumps [Traits].
• Gearbox shaft relative vibration tracking inside oil-mist and heavy splash environments.
• Critical rotating machinery protective monitoring in petrochemical facilities and power stations inside mainland China requiring CCC/NEPSI explosion-proof compliance.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure high accuracy and structural integrity for the Bently Nevada 330101-00-28-10-12-CN proximity probe installation, follow these key field procedures:

• Proper Probe Gapping: Mount the probe in the machine casing, and adjust its position to the recommended mechanical gap (typically 1.27 mm or 50 mils) corresponding to the midpoint of the Proximitor's linear voltage output curve.
• Thread Engagement Limits: Do not exceed the maximum standard thread engagement limit of 0.563 inches (14.3 mm) inside the internal mounting threads. Tightening beyond this range can cause physical binding or casing deformation.
• Cable Protection and Routing: Since this configuration utilizes an unarmored cable, pull the lead-out cable through designated rigid or flexible conduits to prevent abrasion, cutting, or pinching against sharp metal edges. Keep proximity cables isolated from high-voltage motor or generator power lines to avoid interference.
• Connector Connection and Handling: Clean the miniature coaxial ClickLoc connectors prior to mating. Bring them together coaxially and tighten them finger-tight until a mechanical "click" is felt. Never use pliers or other heavy metal tools, as excessive torque will damage the gold plating and lock mechanism.
• Fluid Sealing: While the internal FluidLoc core (Option 12) prevents oil leakage through the cable's interior, ensure the probe's Viton O-ring seal is properly positioned on the casing to guarantee full pressure sealing against fluid leakage from the bearing housing.

Compliance and Certifications

The Bently Nevada 330101-00-28-10-12-CN is certified for reliable performance in highly classified environments and carries localized approvals designed specifically for hazardous locations:

• NEPSI: Certified for explosion protection in hazardous environments within the People's Republic of China.
• CCC: Complies with the China Compulsory Certificate standard for explosion-proof electrical apparatuses.
• RoHS: Meets material restriction standards limiting hazardous substances in electronic machinery components.