Bently Nevada 330780-91-00 Proximity Sensor

The Bently Nevada 330780-91-00 is a proximity sensor from the trusted 3300 XL Series. It is designed for precise shaft displacement and vibration measurements in high-speed rotating machinery.

This probe provides a direct interface to 3300 XL extension cables and Proximitor sensors. It is ideal for critical machinery in oil and gas, power generation, and heavy industrial environments.

The 330780-91-00 proximity sensor features an 8 mm probe tip, a 5-meter integral cable, and durable stainless steel construction. Its non-contact measurement ensures stable operation in harsh or high-temperature zones.

Technical Specifications

Sensor Specifications

• Model: 330780-91-00

• Series: 3300 XL

• Manufacturer: Bently Nevada

• Sensor Type: Non-contact eddy current proximity probe

• Tip Diameter: 8 mm

• Sensing Range: 2 mm linear range (typical)

• Thread Type: 3/8-24 UNF-2A

• Case Material: Stainless steel

• Cable Length: 5 meters (pre-attached)

• Connector Type: Miniature coaxial (connects to extension cable)

Electrical and Mechanical Data

• Frequency Response: Up to 10 kHz

• Output Signal: Proportional voltage to distance (e.g., -200 mV/mil)

• Weight: Approx. 150 g (including cable)

• Operating Temperature: -35°C to +177°C

• Protection: IP65 (with proper installation)

• Mounting Torque: 5.4 N·m ± 0.5 N·m

Key Benefits and Use Cases

The 330780-91-00 sensor offers consistent signal output even in environments with strong electromagnetic interference. It enables real-time shaft position feedback to protect against misalignment, imbalance, or bearing failure.

Use this model in turbine trains, compressors, motors, or pumps that require condition-based maintenance and real-time diagnostics. It works seamlessly with Bently Nevada’s 3300 XL monitoring systems and complies with API 670 standards.

System Integration and Compatibility

The 330780-91-00 sensor connects directly to a 330130-080-00-00 extension cable and a 3300 XL Proximitor Sensor such as 330180-91-00. This allows full integration into a modular vibration monitoring setup with real-time outputs and alarm triggering capabilities.