Bently Nevada 330850-50-00 3300 XL 25 mm Proximitor Sensor

The Bently Nevada 330850-50-00 is a high-performance 3300 XL 25 mm Proximitor Sensor designed for continuous vibration and position monitoring of critical rotating machinery . As part of the trusted 3300 XL series, this sensor provides accurate, real-time data to help maintenance teams detect potential faults before unplanned downtime occurs.

Key Features and Benefits

Non-Contact Eddy Current Technology

The 330850-50-00 utilizes advanced eddy current principles to measure vibration and displacement without physical contact, ensuring no wear on sensitive machine components .

Exceptional Environmental Durability

Engineered for harsh industrial environments, this Proximitor operates reliably across a wide temperature range of -40°C to +85°C . Its robust aluminum housing and IP67 protection rating make it resistant to dust, moisture, and corrosion .

Superior RFI/EMI Immunity

The 3300 XL Proximitor features enhanced RFI/EMI immunity, allowing installation in electrically noisy environments—even within fiberglass enclosures—without signal degradation. This design meets CE mark standards without special mounting considerations .

Flexible Installation

The thin-profile design supports both high-density DIN-rail mounting and traditional panel mounting, offering versatility for new installations or system upgrades . SpringLoc terminal strips enable fast, tool-free field wiring connections .

System Compatibility

This Proximitor is part of a complete transducer system, designed to work with 3300 XL 25 mm proximity probes and extension cables. It physically and electrically replaces older 7200 series 25 mm and 35 mm systems, allowing seamless upgrades without monitor reconfiguration .

Technical Specifications

Model Number: 330850-50-00

Series: 3300 XL NSv

Compatible Probe: 25 mm diameter

Linear Range: 12.7 mm (500 mils) with 0.787 V/mm (20 mV/mil) output 

Connector: Miniature coaxial ClickLoc connector 

Operating Temperature: -40°C to +85°C

Storage Temperature: -55°C to +125°C

Protection Rating: IP67 

Typical Applications

The Bently Nevada 330850-50-00 is widely deployed across industries for monitoring:

Steam turbines (differential expansion measurement on medium to large generators) 

Compressors and pumps in oil, gas, and chemical processing 

Generators in power generation facilities 

Critical motors in steel, paper, and manufacturing plants 

Why Choose the 330850-50-00?

By delivering precise, reliable vibration data, the 330850-50-00 enables predictive maintenance strategies that reduce downtime and extend machinery life. Its rugged design, ease of installation, and backward compatibility make it a preferred choice for both new projects and legacy system upgrades.

For technical support or to verify system compatibility, consult the official Bently Nevada datasheet or contact an authorized distributor .