Bently Nevada 330780-50-00 Proximitor Sensor

Bently Nevada 330780-50-00 Proximitor Sensor

The Bently Nevada 330780-50-00, also cataloged as the 330780 Proximitor Sensor, operates as a dedicated hardware component for large-range eddy-current signal conditioning within rotating machinery monitoring systems.

Suffix Breakdown & Model Matrix

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

The Bently Nevada 330780-50-00 delivers a linear output of 3.94 V/mm (100 mV/mil), specifically optimized for applications requiring an extended linear range compared to standard 8 mm systems. This sensor is instrumental in monitoring axial (thrust) position, steam turbine ramp differential expansion, and reciprocating compressor rod drop. The unit utilizes high-fidelity eddy-current technology to ensure precise gap voltage validation, maintaining accurate rotor dynamics data capture. It serves as a direct upgrade path for legacy 7200-series 11 mm and 14 mm transducer systems, provided that all components—probe, cable, and sensor—are replaced as a complete matched system to ensure proper scaling and linear response.

Frequently Asked Questions

Q: Is the 330780-50-00 compatible with older 7200-series 11 mm probes?

A: No. When upgrading from 7200-series systems, all components must be replaced with 3300 XL 11 mm hardware. Compatibility is not maintained at the individual component level.

Q: What is the requirement for 3500 system integration?

A: When utilizing a 3500 monitoring system, the installed configuration software must be updated to a version that explicitly lists the 3300 XL 11 mm transducer system as a compatible input option.

Field Installation Guidelines

• System Integrity: Replace the entire transducer chain (probe, extension cable, and Proximitor) during installation to ensure the system meets the intended linear range and accuracy specifications.
• Gap Adjustment: Given the larger tip diameter, verify the mechanical gap against the specific application requirements for thrust or expansion monitoring to ensure the sensor operates within its calibrated linear window.
• Mounting Environment: Secure the Proximitor to a stable DIN-rail mount. Ensure cabling is routed to minimize electromagnetic interference, maintaining the integrity of the 50 Ohm signal path.
• Target Verification: Ensure the observed target surface meets the minimum diameter requirements for an 11 mm probe tip to avoid signal distortion caused by target edge effects.