The Bently Nevada 330101-30-60-10-02-05 is an industrial-grade 8mm eddy current proximity sensor probe from the 3300 XL series. As a core sensor in Bently Nevada's (a Baker Hughes brand) asset protection and condition monitoring systems, it is widely and securely installed near the hydrodynamically lubricated bearings of high-value rotating machinery such as industrial steam turbines, centrifugal compressors, large steam turbine expanders, and fans.
The Bently Nevada 330101-30-60-10-02-05 is designed for non-contact, high-precision measurement of rotor radial vibration, axial displacement (position), and critical phase velocity signals. In terms of its basic operating principle, the probe's front end is encapsulated in high-strength polyphenylene sulfide (PPS) insulation, and the housing is precision-manufactured from AISI 303/304 stainless steel, capable of withstanding long-term immersion and continuous scouring with high-temperature lubricating oil from -52°C to +177°C. Within its measurement range (linear range up to 2.0 mm), it fully complies with the linearity and temperature drift specifications outlined in American Petroleum Institute (API) Standard 670.
When used with the dedicated [3300 XL proximity sensor, the Bently Nevada 330101-30-60-10-02-05 utilizes the eddy current effect of a high-frequency electromagnetic field to convert micron-level physical gap changes between the probe tip and the surface of the 4140 steel journal being measured into a high signal-to-noise ratio standard proportional voltage signal of 7.87 V/mm (200 mV/mil). This provides stable and fully interchangeable precision monitoring data for online monitors in the control room (such as the Bentley 3500 system), eliminating the need for separate instrument calibration.
