Product Overview

The Bently Nevada 330103-00-04-50-11-00 is an 8 mm eddy-current proximity probe designed for non-contact displacement measurement on rotating machinery. Used within the 3300 XL 8 mm proximity transducer system, it measures the gap between the probe tip and a conductive target (typically a shaft), enabling continuous monitoring of shaft vibration and axial position when paired with a compatible Proximitor sensor.

This configuration is commonly selected for metric machine hardware because it uses an M10 × 1 mounting thread. The integrated long cable option supports installations where the sensor routing distance is extended, while maintaining signal integrity required for machinery protection and condition monitoring.

Hardware Parameters

Technical corrections and notes

• IP67 / NEMA 4X ratings are not typically specified for proximity probes installed within machine housings and conduit systems; environmental protection depends on the installed assembly, connectors, and routing methods. Use cabinet and junction box practices appropriate to site standards.

• Linear range and calibration depend on the complete transducer system (probe + cable + Proximitor) and target material. Confirm compatibility with the monitor input requirements during engineering.

Industrial Applications

Common operating environments include:

• Steam and gas turbines where continuous shaft displacement data supports vibration limits and protection logic

• Centrifugal compressors in oil, gas, and petrochemical services requiring stable proximity signals for reliability programs

• Large pumps and motor-driven trains where displacement trending indicates bearing wear, looseness, or hydraulic instability

• OEM packaged skids and international equipment builds favoring metric mounting threads and longer cable routing

Installation considerations

• Verify mechanical fit for the 40 mm case and confirm adequate clearance for probe adjustment

• Set probe gap per commissioning procedure to remain within the intended linear operating region

• Route the 5 m cable away from VFD outputs and high-current conductors; follow shielding and grounding practices to minimize EMI pickup