Bently Nevada 330703-000-100-10-11-05 3300 XL 11 mm Probe

The Bently Nevada 330703-000-100-10-11-05 is a core eddy current probe in the 3300 XL Series. Designed specifically for monitoring shaft vibration, displacement, and key-phase speed in rotating equipment (such as turbines, compressors, and motors), it serves as a "precise sensor" for industrial equipment condition monitoring systems. As a classic product under GE's Bently Nevada brand, it utilizes the eddy current effect to non-contactly measure dynamic and static position changes of metal shaft parts, capturing parameters with micron-level accuracy.
This probe features an 11mm probe diameter and is compatible with the 3300 XL Series Proximitor Sensor and Monitoring System. It features a wide operating temperature range, is resistant to oil and corrosion, and exhibits strong anti-interference properties. Its specially coated PCB ensures stable operation in extreme environments ranging from -54°C to +121°C. Whether it is shaft vibration monitoring of thermal power turbines, displacement control of petrochemical compressors, or key phase speed acquisition of metallurgical motors, it can provide accurate data support for equipment fault warning and life assessment with high reliability and high stability measurement performance. It is a key sensing component to ensure the safe and continuous operation of rotating equipment.

★ Non-contact, precise measurement
Based on the eddy current effect, it measures displacement and vibration without contacting the rotating shaft, preventing mechanical wear from affecting equipment operation. In high-speed steam turbine monitoring, it can capture displacements as small as 0.1μm with a measurement error of ≤±1% FS, providing accurate data for early fault warning.
★ Wide, stable operation
With an operating temperature range of -54°C to +121°C, combined with high-temperature cables and protective coating, it delivers stable output signals even in high-temperature metallurgical motors and cryogenic LNG pump units, eliminating measurement errors caused by temperature fluctuations.
★ Strong anti-interference capability
A built-in EMC filter protects against electromagnetic interference from inverters and high-voltage equipment. Even in high-interference environments such as steel mills, the signal-to-noise ratio (SNR) is ≥60dB, reducing false alarms caused by spurious data.
★ Pollution-resistant design
The 316 stainless steel probe housing and IP65 protection withstand industrial oil and dust corrosion. It can operate in the oily environment of chemical compressors without performance degradation over time, reducing maintenance and cleaning frequency.

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