Product Overview

The Bently Nevada 330730-040-00-00 is a high-performance 4.0-meter extension cable specifically engineered for the 3300 XL 11mm Proximity Transducer System. This specialized component serves as the vital signal bridge between an 11mm eddy current probe and the Proximitor sensor, facilitating the accurate transmission of displacement and vibration data. Designed for applications where standard 8mm systems lack sufficient linear range, the 11mm system—supported by this extension cable—provides an extended measurement window of 4.0 mm (160 mils). This cable is essential for maintaining the system's calibrated impedance and ensuring a consistent 3.94 V/mm (100 mV/mil) output for critical machinery monitoring.

Technical Architecture and Hardware Metrics

Industrial Deployment and Operational Context

The 330730-040-00-00 extension cable is indispensable for monitoring high-value rotating assets that exhibit significant shaft movement or require larger installation gaps. It is primarily utilized in power generation and petrochemical sectors for measuring axial (thrust) position on large steam turbines, ramp differential expansion, and rod drop in reciprocating compressors. Because the 11mm system offers a significantly longer linear range than standard 8mm sensors, it is the preferred solution for tracking thermal growth in massive turbine casings. By ensuring high-fidelity signal transmission to Bently Nevada 3500 series monitoring racks, this cable enables deterministic data acquisition for automated machinery protection and advanced predictive maintenance diagnostics.