Bently Nevada 330101-40-75-10-01-CN 3300 XL 8 mm Proximity Probe

Product Overview

The 330101-40-75-10-01-CN 3300 XL 8 mm proximity probe from Bently Nevada is designed for continuous vibration and shaft position monitoring in turbines, compressors, pumps, and other critical rotating machinery. It is widely applied in oil and gas refineries, LNG facilities, petrochemical plants, and power generation systems where stable machine protection is required to prevent unplanned downtime and equipment damage.

This probe operates within the 3300 XL monitoring system and ensures accurate signal transmission in high vibration industrial environments. The 3/8-24 UNF threaded body provides secure mechanical installation on machine housings. The 7.5 in case length and 4.0 in unthreaded length support flexible installation configurations in deep mounting locations. The 1.0 m cable length allows compact routing in constrained machinery spaces. The CN approval option supports hazardous area installations requiring NEPSI, CCC, and applicable ATEX or IECEx compliance, making it suitable for explosion-risk industrial environments.

Suffix Breakdown

Technical Specifications

Technical FAQs

What does the CN suffix represent in this probe model?

The CN suffix indicates a China hazardous area approval package that includes NEPSI, CCC, and applicable ATEX or IECEx certifications for explosive environments.

Is this probe compatible with standard 3300 XL systems?

Yes. It is designed for integration with Bently Nevada 3300 XL monitoring systems when properly matched with extension cables and Proximitor modules.

Can this probe be used in turbine vibration monitoring applications?

Yes. It is commonly used for turbine, compressor, and pump monitoring in critical machinery protection systems.

Does installation length affect measurement accuracy?

Yes. Proper electrical length matching between probe, cable, and monitoring system is required for stable calibration and accurate vibration readings.

Engineering & Installation Guide

Ensure correct probe gap setup during commissioning to maintain linear measurement performance and stable vibration signal output.

Route probe cables away from high voltage conductors and VFD output cables to reduce electromagnetic interference in monitoring systems.

Use proper mechanical fixation in high vibration areas to prevent connector stress and long-term signal instability.