Bently Nevada 330850-51-05 3300 XL 25 mm Proximitor Sensor

The Bently Nevada 330850-51-05 is a 3300 XL 25 mm Proximitor Sensor engineered for high-precision, non-contacting vibration and position monitoring in industrial rotating machinery. This sensor is a critical component of the 3300 XL 25 mm Transducer System, providing reliable displacement measurements in demanding environments.

Features

• System Length: 5.0 metres (16.4 feet) for versatile installation.
• Robust Design: Features improved RFI/EMI immunity, allowing for operation near high-frequency radio signals without requiring special mounting considerations.
• Installation Versatility: Suitable for high-density DIN-rail mounting or traditional panel configurations.
• SpringLoc Terminals: Integrated SpringLoc terminal strips simplify field wiring and eliminate the need for specialized installation tools.
• Compatibility: Backward compatible with non-3300 XL series transducer components, facilitating integration into legacy monitoring architectures.

Applications

• Power Generation: Monitoring steam turbines, large generators, and feedwater pumps in thermal, nuclear, and hydroelectric facilities.
• Oil & Gas: Essential for rotary and reciprocating compressors, gas turbines, and high-capacity delivery pumps.
• Industrial Processing: Used in large-scale equipment such as ethylene plants, ammonia synthesis units, and blast furnace blowers.
• General Machinery: Suitable for large motors, gearboxes, and engine test benches.

Technical Specifications

Installation Guidelines

• Ensure the Proximitor Sensor is installed in a clean, dry environment protected from direct moisture.
• Use appropriate shielded cabling to maintain signal integrity and adhere to EMI/RFI shielding practices.
• Verify that the total system length (Probe + Extension Cable + Proximitor) matches the specified 5.0-meter configuration.
• SpringLoc terminals do not require torque tools; ensure wires are stripped to the correct length for a secure connection.
• Always power down the monitoring system before inserting or removing the sensor to prevent electrical damage.
• Maintain proper clearance from high-voltage power lines to avoid induced noise in the transducer signal.

FAQ

What is the primary function of the 330850-51-05?

This sensor is used to measure the distance between a probe tip and a target surface, typically to monitor shaft vibration and axial position in large rotating machinery.

Is this sensor compatible with older 3300 series systems?

Yes, the 3300 XL 25 mm series is designed to be backward compatible with previous-generation transducer system components.

Does the sensor require special tools for wiring?

No, the unit features SpringLoc terminal strips that allow for quick, tool-free field wiring connections.

How does the sensor handle electromagnetic interference?

The 3300 XL design incorporates enhanced RFI/EMI immunity, ensuring stable operation even in environments with high-frequency radio interference.