Bently Nevada 330704-000-030-50-02-CN 3300 XL 11 mm Proximity Probe

Description

Engineered for critical industrial turbomachinery monitoring, the 330704-000-030-50-02-CN serves as a robust non-contact displacement sensor within the Bently Nevada 3300 XL series. This 11 mm proximity probe is specifically designed to measure shaft vibration, position, and speed in high-velocity, high-temperature machinery environments. By utilizing eddy current technology, it senses the relative distance between the probe tip and a rotating target shaft with exceptional linearity and repeatability.

The configuration of this specific model features a fully threaded metric housing with an overall case length of 30 mm and no unthreaded section, allowing for direct-mount installations in tight enclosures. Equipped with a 5.0-meter integrated standard cable terminating in a miniature coaxial ClickLoc connector, it ensures seamless integration with corresponding 3300 XL proximitor sensors. The probe tip is molded from high-performance polyphenylene sulfide (PPS) and sealed with a Viton O-ring, offering structural integrity against fluid ingress and pressure differentials.

Features

• Optimized 11 mm Tip: Offers extended linear range compared to standard 8 mm probes, ideal for larger displacement measurement requirements.
• Rugged Case Material: Encased in AISI 304 stainless steel (SST) to withstand corrosive industrial environments.
• Viton O-Ring Seal: Designed to prevent leakage by sealing differential pressure between the probe tip and the outer case.
• ClickLoc Coaxial Connector: Features a gold-plated, miniature coaxial connection mechanism that resists vibration-induced loosening.
• Wide Thermal Range: Maintains high accuracy and structural stability across extreme operating temperatures from -51 degC to +177 degC.

Applications

• Steam and gas turbine shaft vibration and axial position monitoring.
• High-speed centrifugal compressor radial displacement tracking.
• Power generation alternator and generator bearing wear analysis.
• Industrial pump and gearbox health diagnostics in petrochemical processing.

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the mounting bracket or casing is tapped precisely to M14 x 1.5 before mounting to avoid thread damage.
• Maintain a minimum cable bend radius of 25.4 mm (1.0 inch) during routing to prevent attenuation or physical damage to the internal coaxial core.
• To prevent signal interference and accidental grounding, use silicon connector protectors or self-fusing tape to insulate the ClickLoc connection if it is exposed to conductive fluids.
• Calibrate physical gap clearances using a calibrated feeler gauge or electrical voltmeter connected to the proximitor output before final torquing.

Compliance and Certifications

• CN Approval: Certified for country-specific domestic safety standards in industrial hazardous environments.
• Complies with general mechanical and electrical safety standards required for heavy rotating machinery protection.