Bently Proximity Eddy Current Sensor

Jul 18, 2025

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Bently Nevada relies on the quality and integrity of its vibration sensors to monitor and measure their machine performance. By installing Bently Nevada eddy current sensors, it is ideal for measuring rotor shaft position and vibration. The sensor portfolio helps you install and protect the accessories and components of your most critical equipment, monitor unit vibration, and protect equipment. Eddy current proximity sensors provide continuous condition monitoring information and trip monitoring machines when needed to support proactive maintenance programs and machinery diagnostics. Bently proximity eddy current sensors are ideal for measuring rotor shaft position and vibration within the gap of fluid film bearings and provide excellent performance in harsh environments.

 

Bently Nevada proximity sensors feature:
• Help reduce costs, improve product quality, and limit machine downtime.
• Reduce overall rates - When you use proximity sensors as part of a plant-wide monitoring program, costs associated with insurance, maintenance, and unplanned repairs will drop significantly
• Increase revenue - When you use our proximity sensors as part of a plant-wide monitoring program, revenue will increase by increasing uptime and production quality.
• Minimize unplanned downtime - You can convert unplanned and expensive downtime into planned, manageable downtime.

 

The bently 3300 XL series eddy current sensor system is divided into standard range, large range, and special application according to the probe diameter (system composition: Bently bently3300XL vibration probe + extension cable + preamplifier)
1. bently 3300 XL 8mm series eddy current sensor represents the most advanced performance of the Bently Nevada eddy current non-contact sensor system. Measuring range: 2mm, measurement type: shaft vibration, shaft displacement, speed, key phase
2. bently3300XL 11mm series eddy current sensor, linear measurement range of 4mm for various applications, and provides 3.94 V/mm output to measure vibration and displacement.
3. bently3300XL 25mm series eddy current sensor, providing an extended linear measurement range of 12.7 mm, is an ideal choice for the steam turbine TSI (turbine monitoring instrumentation) system. The typical measurement type is differential expansion.
4. bently 3300XL 50mm series eddy current sensor, with a linear measurement range of 27.9 mm (1100 mil). The 3300 XL 50 mm system measures the differential expansion between the rotor and stator of large steam turbine generators.
5. bently 3300XL NSv series eddy current sensor, for installation where the space gap is too small, is suitable for centrifugal air compressors and other machines with strict installation requirements, and can monitor shaft vibration, shaft displacement, tachometer, zero speed, and key phase applications.

 

Representative models:
Sensor:330103-00-04-10-02-00, 330703-00-05-10-02-00 , 330851-02-000-060-10-00-CN,330905-00-10-10-02-00
Extension cable:330130-040-00-00 , 330730-040-00-00 , 330854-040-25-CN, 330930-045-00-00
Proximitor Sensor: 330180-50-00 , 330780-50-00, 330850-51-CN, 330980-51-00

 

The 3300 PROXPAC XL sensor assembly integrates the Proximitor* sensor with a specially designed probe housing to form a compact, self-contained, all-in-one proximity probe system. An advanced thermoplastic called polyphenylene sulfide (PPS) is molded with glass and conductive fibers to strengthen the housing and effectively eliminate the danger of static charges. The housing cover contains its own 3300 XL proximity sensor, so no extension cables are required. Rated Type 4X and IP66 - the 3300 PROXPAC XL provides extra protection in harsh environments.