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The 330102-30-65-10-02-00 is an 8 mm eddy current proximity probe under the 3300 XL series by Bently Nevada. It is an industrial-grade, non-contacting displacement and vibration sensor widely utilized across global sectors including power generation, petrochemicals, and oil and gas. It is specifically engineered for the real-time condition monitoring of radial shaft vibration, axial displacement (position), and rotational speed (Keyphasor) on large-scale rotating machinery.
API 670 Compliance
Complete Interchangeability
ClickLoc Miniature Coaxial Connector
The 3300 XL 8 mm system delivers the most advanced performance in our eddy current proximity transducer systems. The standard 3300 XL 8 mm 5-meter system also fully complies with the American Petroleum Institute’s (API) 670 Standard for mechanical configuration, linear range, accuracy, and temperature stability.
All 3300 XL 8 mm proximity transducer systems provide this level of performance and support complete interchangeability of probes, extension cables, and Proximitor sensors, eliminating the need to match or bench calibrate individual components. Each 3300 XL 8 mm Transducer System component is backward compatible and interchangeable with other non XL 3300 series 5 mm and 8 mm transducer system components. This compatibility includes the 3300 5 mm probe, for applications in which an 8 mm probe is too large for the available mounting space.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Bently Nevada 330102-30-65-10-02-00 Proximity Probe Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Steam Turbine Power Generation
Utilizing its 6.5-inch extended case to penetrate thick double-wall casings, this probe is installed in pairs on main bearings to continuously monitor radial shaft vibration and eccentricity, preventing excessive shaft runout from damaging the bearing liners.
Gas Turbine Power Plants
Installed within the bearing housings of the compressor and turbine sections in heavy-duty gas turbines to measure axial position (thrust displacement) under high-temperature, high-vibration conditions, preventing catastrophic axial migration of the high-speed rotor.
Natural Gas Pipeline Compression
In unmanned gas-turbine-driven centrifugal compressor stations along long-distance pipelines, this 1.0-meter integrated cable probe pairs with an extension cable to stably transmit shaft runout signals to remote control panels for fault early warning.
Nuclear Power
Inside the main steam turbine-generator sets and full-capacity turbine-driven feedwater pumps of nuclear conventional islands, it performs absolute shaft vibration and Keyphasor speed measurements to guarantee high stability of grid synchronization.
Iron & Steel Blast Furnace Blowing
Used in the bearing housings of large centrifugal blast furnace blowers and TRT (Top Gas Recovery Turbine) units to monitor real-time impeller imbalance vibration caused by blast furnace gas dust accumulation.
When deploying the 330102-30-65-10-02-00 probe, the initial gap voltage must be strictly calibrated (typically to -10 V DC) by adjusting the threading depth of its extended 6.5-inch casing, then secured firmly with a locknut once the midpoint is reached.
Because this probe features a short 1.0-meter integrated cable, it must never be connected directly to a Proximitor sensor; instead, it must be paired with a 4.0-meter or 8.0-meter extension cable to match the required total loop length. Sharp cable bends must be avoided during routing, and its high-performance ClickLoc connector requires proper oil-proof insulation sleeving to prevent signal degradation.
The 330102-30-65-10-02-00 operates as a standard-mount, 3/8-24 UNF threaded proximity probe within the 3300 XL 8 mm Transducer System. The system provides an output voltage that is directly proportional to the distance between the probe tip and the observed conductive surface and can measure both static (position) and dynamic (vibration) values. Featuring a 1.0-meter integrated cable, it interfaces with a 3300 XL extension cable to complete a 5-meter or 9-meter loop. The system’s primary applications are continuous vibration and position measurements on fluid-film bearing machines, as well as Keyphasor reference and speed measurements for critical machinery diagnostics.
The 330102-30-65-10-02-00 is a 3300 XL series 8 mm eddy current proximity probe from Bently Nevada, featuring a standard English thread (3/8-24 UNF) and standard mounting configuration.
What is the working principle of the 330102-30-65-10-02-00?
It operates on the eddy current principle. An internal coil at the probe tip generates a high-frequency electromagnetic field, which induces eddy currents when close to a metal shaft surface, converted by a Proximitor into a voltage signal proportional to the gap distance.
How do you properly install and use a product like the 330102-30-65-10-02-00?
During installation with the machine stopped, thread the probe into a dedicated mounting bracket or bearing housing hole, monitor the gap voltage with a multimeter, and secure it with a locknut once the target voltage is reached.
Does the 330102-30-65-10-02-00 require an extension cable during use?
Yes. Since the probe's integrated cable is only 1.0 meter, it must be connected to a 4.0-meter or 8.0-meter 3300 XL extension cable to interface with the Proximitor sensor in standard 5-meter or 9-meter electrical systems.
What industrial parameters is the 330102-30-65-10-02-00 primarily used to measure?
It is primarily used for radial vibration, axial displacement (position monitoring), eccentricity, and Keyphasor speed measurements on fluid-film bearing machinery.
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