Description

Designed specifically for applications requiring standard 3/8-24 UNF threading without mechanical armor, the Bently Nevada 330101-00-45-10-12-CN is an 8 mm proximity probe configured with a fully threaded 4.5-inch case, a 1.0-meter FluidLoc cable, and a miniature coaxial ClickLoc connector. This specific configuration includes the -CN China hazardous area approval package, making it certified under NEPSI and CCC standards for installation in explosive environments across China. It operates as part of the 3300 XL 8 mm Proximity Transducer System, utilizing eddy-current principles to deliver highly accurate, non-contact measurement of static and dynamic shaft movement.

The FluidLoc cable design provides an integrated moisture barrier that prevents oil, process fluids, or gases from leaking through the cable interior, addressing critical containment concerns in pressurized machine casings. When paired with a compatible 330180 series Proximitor sensor and a 3300 XL extension cable, the probe generates a continuous voltage output directly proportional to the distance between the probe tip and the observed conductive target surface (typically AISI 4140 steel). By permanently mounting this probe on bearing housings or machine casings, industrial plants gain continuous machinery protection and diagnostics capabilities for highly critical rotating assets.

Features

• FluidLoc Cable Technology: Prevents fluid and gas leakage through the cable core, ensuring process containment and preventing media bypass.
• Unarmored 3/8-24 UNF Body: Features a fully threaded 4.5-inch stainless steel case without external armor, optimized for installations with direct internal sleeve or bracket mounting.
• ClickLoc Coaxial Connector: Equipped with a miniature male coaxial ClickLoc connector for reliable, low-loss signal transmission with a secure connection feel.
• China Hazardous Area Approval: Certified with the -CN package, meeting local NEPSI and CCC requirements for intrinsically safe and non-incendive environments.
• Eddy-Current Measurement Principle: Delivers high-precision, non-contact displacement sensing, capturing dynamic shaft vibration and static position.
• Complete Compatibility: Fully interchangeable with standard 3300 XL 5-meter and 9-meter systems, as well as older non-XL 3300 series 5 mm and 8 mm components.

Applications

• Steam and Gas Turbines: Monitoring shaft radial vibration and axial position/thrust displacement within high-speed bearings.
• Centrifugal Compressors: Tracking rotor displacement and axial shaft movement under high-pressure process conditions.
• Industrial Pumps and Fans: Continuous vibration monitoring on fluid-film bearing surfaces of critical balance-of-plant machinery.
• Process Fluid Containment: Ideal for machinery enclosures where oil or gas leakage through standard sensor cabling must be strictly prevented.

Ordering Information

Technical Specifications

Installation Guidelines

• Thread Engagement: Do not exceed a maximum thread engagement of 0.563 inches (14.3 mm) for 3/8-24 UNF threads to prevent binding and structural damage during mounting.
• Probe Gap Calibration: Set the initial physical gap between the probe tip and target surface using a micrometer or mechanical feeler gauges, verifying voltage readings with a compatible Proximitor sensor prior to locking the case nut.
• Cable Routing and Shielding: Maintain proper shielding and grounding from the probe connector through the extension cable to the Proximitor sensor. Route cabling through dedicated protective conduit to avoid high-voltage power lines and electromagnetic interference.
• Connector Protection: Ensure the ClickLoc connectors are clean and dry. Finger-tighten the gold coaxial connectors securely. If installing in environments with high moisture or oil mist, use an external connector protector kit to seal the connection.

Compliance and Certifications

• NEPSI: Certified for hazardous area installations in China under National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation.
• CCC: China Compulsory Certification compliant for explosion protection.
• CE Mark: Complies with European Union electromagnetic compatibility (EMC) and low voltage directives.