Bently Nevada 330780-51-00 3300 XL 11 mm Proximitor Sensor

The Bently Nevada 330780-51-00 is a high-performance signal conditioner within the 3300 XL 11mm proximity transducer family. This module performs the essential task of converting raw eddy current data from a probe into a linear analog voltage. Because this specific 11mm system offers a wider linear range than standard 8mm sensors, it is ideal for monitoring larger vibration amplitudes and axial displacements. The Proximitor ensures that vibration monitoring systems receive precise, real-time measurements from rotating machinery targets.

Industrial Resilience and Precise Measurement

Engineers designed the 330780-51-00 for maximum reliability in hazardous and high-interference environments. The unit features advanced RFI/EMI shielding to protect signal integrity against electrical noise. Furthermore, the 11mm tip technology allows for a greater gap between the sensor and the machine shaft. This non-contact method prevents mechanical wear while delivering highly accurate data on shaft position and speed. The rugged housing is built to withstand extreme plant conditions, maintaining performance across a temperature spectrum of -51°C to +100°C.

Technical Specifications

System Connectivity and Integration

The 330780-51-00 integrates smoothly with the Bently Nevada 3500 series machinery protection racks. It utilizes a terminal strip design for secure field wiring, which facilitates easy connection to extension cables and probes.² Since this module supports standard industrial voltage outputs, it also pairs well with various PLCs and DCS architectures. This flexibility allows maintenance teams to implement sophisticated predictive maintenance programs across different machinery types, from large steam turbines to industrial pumps.

Key Performance Advantages

The 3300 XL 11mm Proximitor provides several critical benefits for machine health monitoring:

• Extended Measuring Range: Offers superior linear range for applications requiring larger shaft clearances.
• Stable Thermal Performance: Minimizes drift in measurement accuracy despite significant ambient temperature changes.
• Robust Noise Rejection: Internal filtering maintains clear signals even in electrically dense industrial environments.
• Simplified Calibration: Matches with standard 11mm probes for quick system setup and commissioning.