Bently Nevada 330876-01-90-00-00 3300 XL Proximitor Sensor

This 3300 XL Proximitor sensor provides precise shaft vibration and position measurements for large rotating machinery. It operates as a specialized component within the Bently Nevada 3300 XL transducer system for critical asset monitoring. The sensor generates a voltage output that varies linearly with the gap between its probe tip and the conductive target surface. Additionally, it meets API 670 standards for mechanical configuration, linear range, and temperature stability.

Technical Specifications

Design and Installation Advantages

This sensor employs a 1-14 UNS thread for secure mounting in large machine casings. The 90.0 mm unthreaded length provides exceptional positioning flexibility for deep-hole installations. Its fully threaded configuration (0.0 mm overall case length) allows maximum thread engagement for superior mounting stability. Furthermore, the 0.5 meter probe cable terminates with a miniature coaxial ClickLoc connector. This short cable length suits applications where space constraints limit the installation depth.

Performance Characteristics

This sensor delivers a 12.7 mm linear measurement range for monitoring large shaft movements. The 0.787 V/mm sensitivity ensures stable and repeatable readings across the entire operating range. The system supports full interchangeability of probes, extension cables, and Proximitor sensors. Consequently, users can replace individual components without system recalibration, reducing maintenance downtime.

Application Suitability

This sensor excels at monitoring radial vibration and thrust position in large turbines, compressors, and generators. Its extended linear range accommodates significant shaft excursions during start-up and shutdown transients. The PPS tip and stainless steel construction resist harsh process conditions and chemical exposure. Therefore, this sensor suits power generation, oil and gas, and heavy industrial environments where large machinery demands robust monitoring.