Bently Nevada 330901-00-40-05-02-CN 3300 NSv Proximity Probe

Description

Engineered for confined physical locations and small target areas, the 330901-00-40-05-02-CN proximity sensor acts as a critical component of the Bently Nevada 3300 NSv transducer system. This eddy-current non-contacting measurement device is designed primarily for fluid film bearing machines where standard probe configurations cannot be deployed due to shaft diameter limitations or tight installation clearances.

The unit features an unthreaded body design with a 4.0-inch overall case length and is equipped with a 0.5-meter (20-inch) integrated probe cable. This particular model utilizes a miniature coaxial ClickLoc connector for secure, reliable signal transmission back to the Proximitor sensor. Formulated for durability in harsh industrial processes, the probe incorporates a polyphenylene sulfide (PPS) tip and a rugged stainless steel case shell to resist process chemicals and mechanical stress.

Features

• Specifically scaled for machinery with small shafts or narrow installation envelopes.
• Robust polyphenylene sulfide (PPS) probe tip provides high chemical and thermal resistance.
• AISI 304 stainless steel (SST) probe case construction protects against mechanical wear.
• Integrates a 75-ohm coaxial fluoroethylene propylene (FEP) insulated cable.
• Equipped with a miniature coaxial ClickLoc connector to resist vibration-induced disconnection.
• Features a Viton O-ring pressure seal to isolate differential pressures between the tip and case.

Applications

• Radial vibration and axial thrust position monitoring on high-speed turbomachinery.
• Industrial centrifugal compressors and small-scale steam turbines.
• Fluid film bearing diagnostics on generators, pumps, and gearboxes.
• Predictive maintenance and machinery protection systems in power generation, chemical processing, and oil and gas facilities.

Technical Specifications

Connections and Interfaces

Installation Guidelines

• Ensure the installation surface is free of metallic debris that could interfere with the eddy-current field.
• Do not overtighten the unthreaded mounting clamp; follow recommended engineering torque limits for 304 stainless steel housings.
• Keep ClickLoc connectors clean, dry, and free of moisture or lubricating oils before mating.
• Finger-tighten ClickLoc connectors; do not use pliers or other mechanical tools which may damage the connection interfaces.
• Verify the Viton O-ring is properly positioned if the probe is required to seal pressure differentials.