Bently Nevada 330881-BR-04-145-06-02 PROXPAC XL Proximity Transducer Housing

Brief Product Description

This industrial-grade proximity transducer assembly monitors critical machinery shaft vibration and position with high accuracy. The design eliminates intermediate extension cables by embedding a 3300 XL 8 mm probe and Proximitor sensor into one unified housing.

Product Overview

The Bently Nevada 330881-BR-04-145-06-02 PROXPAC XL transducer assembly provides non-contact displacement measurements for critical rotating machinery. Because this hardware integrates the Proximitor sensor directly into the field enclosure, it eliminates the need for separate extension cables or remote driver housings. This unified architecture allows technicians to run field wiring directly from the monitor rack straight to the machine casing. Consequently, the design minimizes intermediate connection points and substantially lowers total installation complexity.

To survive severe industrial conditions, the outer enclosure utilizes high-performance molded Polyphenylene Sulfide (PPS). This conductive, glass-fiber-reinforced thermoplastic successfully replaces traditional steel and aluminum housings while optimizing electrostatic charge dissipation. Furthermore, dual environmental ratings of IP66 and Type 4X ensure the hardware remains impervious to dust, moisture ingress, and corrosive atmospheric elements during long-term operation.

Configuration Breakdown and Option Specifics

The individual digits within this specific part matrix determine the physical dimensions and mounting hardware included with the assembly.

• Probe Option (-BR): Equips the housing with a premium 3300 XL 8 mm eddy current probe element.
• Standoff Adapter Option (-04): Features a 40 mm fixed standoff length to achieve correct casing clearance.
• Probe Penetration Option (-145): Specifies a deeper 145 mm insertion depth to reach recessed shaft targets.
• Fittings Option (-06): Includes a 3/4-14 NPT conduit fitting combined with localized installation hardware.
• Mounting Thread Option (-02): Utilizes standard English imperial threads for secure mechanical attachment.

Technical Specifications

The following parameters outline the structural design characteristics and environmental limits for this active Turbomachinery Instrumentation (TSI) component.

• Manufacturer: Bently Nevada (Baker Hughes)
• Part Number: 330881-BR-04-145-06-02
• Product Series: 3300 XL Series / PROXPAC XL Environment
• Enclosure Material: Glass-Fiber Reinforced Conductive Polyphenylene Sulfide (PPS)
• Ingress Protection Ratings: Certified to IP66 and NEMA Type 4X Standards
• Internal Sealing Elements: Viton Probe O-Ring and Neoprene Sleeve O-Ring
• Integrated Sensor Tip: 8 mm Diameter Eddy Current Element
• Shipping Weight: 0.06 kg

Primary Applications

Predictive maintenance teams install this integrated housing across various critical industrial infrastructure setups.

• Continuous Radial Vibration Tracking: Capturing high-speed lateral shaft movement inside fluid-film bearings on industrial machinery.
• Axial Thrust Position Safety: Monitoring rotor displacement thresholds on large scale steam turbines and turbocompressors.
• Phase Reference Angle Detection: Supplying clean Keyphasor pulses from shaft keyways to speed and diagnostic balancing monitors.
• Harsh Area Processing Protection: Delivering real-time machinery health variables in chemical processing plants and offshore oil platforms.