Bently Nevada 330980-71-CN 3300 XL NSv Proximitor Sensor

The Bently Nevada 330980-71-CN is part of the 3300 XL NSv Proximity Transducer System, specifically engineered for machinery with space constraints such as centrifugal compressors, small shaft turbines, and process gas compressors. This system includes a proximity probe, extension cable, and Proximitor sensor optimized for measuring vibration, position, and speed in applications where standard 5 mm or 8 mm systems are impractical.

The 330980-71-CN model features a 7.0-meter system length with DIN mounting. Its compact form factor, enhanced EMI/RFI immunity, and rugged mechanical design make it suitable for harsh industrial environments, including high humidity and corrosive conditions.

Technical Specifications

Applications

• Radial vibration monitoring on shafts < 51 mm in diameter

• Axial (thrust) position measurements on targets < 15 mm

• Speed and phase (Keyphasor) reference detection

• Compact installations with rear/side view limitations

• Upgrades for legacy systems (3300 RAM, 3000/7000 series)

Advantages

• Compact design – Ideal for tight space constraints

• High precision – Output of 200 mV/mil with short linear range for small target accuracy

• Robust EMI/RFI protection – Complies with CE standards without special enclosures

• Flexible mounting – Suitable for both DIN rail and panel mount configurations

• Backward compatibility – Supports upgrades with existing probes and cables in many cases

• Improved chemical resistance – Probe materials withstand corrosive process environments

FAQ

Q1: What does the “NSv” stand for in 3300 XL NSv?

A1: “NSv” refers to “Narrow Side view,” indicating it’s optimized for small target and restricted view applications.

Q2: Is this model compatible with older 3300 RAM probes?

A2: Yes, the 3300 NSv probe and cable are mechanically/electrically compatible with 3300 RAM components.

Q3: Can this system be used for axial position measurements?

A3: Yes, it supports both axial (thrust) and radial vibration/position measurements.

Q4: What is the output voltage scale factor?

A4: The average scale factor is 7.87 V/mm (200 mV/mil).

Q5: What is the environmental temperature limit of the sensor?

A5: The Proximitor sensor operates between -52°C to +100°C.

Q6: Is the sensor suitable for high-vibration environments?

A6: Yes, the sensor is designed to operate in harsh conditions including vibration and chemical exposure.

Q7: What mounting options are available for 330980-71-CN?

A7: It comes with DIN rail mounting hardware.

Q8: Does it meet hazardous area certifications?

A8: Yes, it meets ATEX, IECEx, and other global hazardous area requirements.

Q9: Can the sensor be installed without mounting hardware?

A9: Version 72 (330980-72) comes without mounting pads, intended as a spare.

Q10: Is the Proximitor sensor waterproof?

A10: It is not submersible, but can withstand 100% condensing humidity if connectors are protected.