Product Overview

The 330880-28-20-038-00-02 is a specialized PROXPAC XL assembly from Bently Nevada that streamlines vibration and position monitoring by integrating the proximity probe and Proximitor sensor into a single, high-durability housing. This "cable-less" design eliminates the traditional extension cable between the transducer and the driver, significantly reducing signal loss and potential failure points. By housing the 3300 XL Proximitor electronics directly within the protective cover, the system provides a self-contained solution for Turbine Supervisory Instrumentation (TSI) that is easier to install and maintain than modular legacy systems.

Key Technical Characteristics

The engineering of the 330880-28-20-038-00-02 emphasizes environmental resilience and precision measurement. The housing is manufactured from advanced Polyphenylene Sulfide (PPS), a glass-reinforced thermoplastic that offers superior chemical resistance and electrostatic dissipation compared to standard aluminum or steel enclosures.

• Model Identification: 330880-28-20-038-00-02

• Probe Diameter: 8mm high-performance proximity probe

• Body Length: 20.0 cm (200 mm)

• Adjustment Range: 3.8 cm (38 mm) for precise gap calibration

• Environmental Protection: Rated Type 4X and IP66 for maximum ingress resistance

• Material Science: Conductive fiber-reinforced PPS thermoplastic

• Termination: 3/4-14 NPT conduit fittings for secure field wiring

• Integrated Driver: Built-in 3300 XL Proximitor for 4-20mA or voltage output

Industrial Applications

This integrated transducer is specifically designed for hazardous and demanding industrial environments where space for external Proximitor enclosures is limited. Its primary use cases involve monitoring large-scale rotating machinery in the oil and gas, power generation, and chemical processing sectors. It is exceptionally effective for measuring radial vibration, axial thrust, and eccentricity on steam turbines, compressors, and industrial pumps. The ability to perform external probe adjustments without opening the machine casing makes it a preferred choice for facilities prioritizing high availability and simplified maintenance protocols.