Product Overview

The 330780-50-05 is a high-performance signal conditioner designed for the Bently Nevada 3300 XL 11 mm Proximity Transducer System. This Proximitor sensor provides a linear voltage output proportional to the gap between an 11 mm probe tip and a conductive target. Engineered as a robust solution for large-scale machinery, it offers a significantly wider linear range than standard 8 mm systems, making it the preferred choice for applications requiring greater displacement measurement or significant axial shaft movement tracking. This model is factory-calibrated for a 5.0-meter total system length, ensuring high-fidelity data acquisition for Turbine Supervisory Instrumentation (TSI).

Technical Performance and Signal Integrity

The 330780-50-05 is built to deliver precision diagnostics in demanding industrial environments:

• Extended Linear Range: Provides a 4.0 mm (160 mil) linear measurement range, nearly double that of standard proximity systems.

• Scale Factor: Delivers an average scale factor of 3.94 V/mm (100 mV/mil), optimized for large-displacement monitoring.

• System Configuration: Specifically tuned for a 5.0-meter system length (50 option), requiring a matching 5m probe and extension cable for calibrated accuracy.

• Advanced Shielding: Features enhanced RFI/EMI immunity that exceeds European CE mark standards, maintaining signal stability even when mounted near high-frequency industrial noise sources.

• Hazardous Area Approval: The -05 suffix indicates multi-agency certifications (ATEX, IECEx, and CSA), permitting safe installation in explosive atmospheres.

Mechanical Design and Field Integration

Designed for high-density cabinet environments and long-term durability, the 330780-50-05 includes:

• Compact Thin-Profile Housing: The narrow design supports high-density mounting on standard 35 mm DIN rails or traditional bulkhead panel configurations.

• SpringLoc Terminal Strips: Features specialized tool-free wiring terminals that provide a secure, vibration-resistant electrical connection, reducing installation labor and preventing field wiring failure.

• Secure Connectivity: Utilizes high-quality coaxial connectors to maintain low-impedance signal transmission between the probe and the monitoring rack.

• Legacy Compatibility: While part of the 3300 XL family, it is engineered to replace or upgrade older 7200-series 11 mm transducer systems with improved reliability and noise rejection.

Industrial Applications

The 11 mm Proximitor 330780-50-05 is a critical component for protecting high-capital rotating assets, including:

• Large Steam and Gas Turbines: Monitoring axial thrust position where large thermal expansion or rotor movement is expected.

• Hydroelectric Generators: Tracking radial vibration and shaft centerline position on large-diameter vertical or horizontal units.

• High-Power Pumps and Compressors: Providing early fault detection for imbalances, misalignments, and bearing degradation.

• Condition Monitoring Integration: Seamlessly interfaces with Bently Nevada 3500 series machinery protection systems for real-time asset health management.