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The 330101-08-20-10-02-05 is a Bently Nevada 3300 XL series 8mm eddy current probe (forward mounting). This model is one of the most commonly used vibration sensors in industrial settings, and its configuration parameters make it ideal for applications requiring installation through thick housings and in explosion-proof environments.
One 3300 XL 8 mm probe
One 3300 XL extension cable
One 3300 XL Proximitor Sensor
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. The system’s primary applications are vibration and position measurements on fluid-film bearing machines, as well as Keyphasor reference and speed measurements.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.
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 330101-08-20-10-02-05 3300 XL 8 mm Proximity Probes 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.
Oil & Gas Industry
Utilizing its explosion-proof certification, it monitors the radial vibration of high-speed rotors to prevent combustible gas leaks or equipment destruction caused by bearing failure.
Thermal Power Generation
Used for steam turbine main shaft monitoring. It measures axial displacement (thrust) of the rotor to prevent friction between blades and the casing during operation.
Petrochemical Industry
Used in reciprocating compressors to measure Rod Drop. By monitoring changes in the piston rod's position, it evaluates the wear condition of internal rider bands.
Metallurgy Industry
Used for large blast furnace blowers. In high-dust and high-vibration environments, it monitors the dynamic oil film thickness of bearings to prevent "bearing burnout" caused by excessive loads.
Mining & Mineral Processing
Installed in the gearboxes of large ball mills or crushers. It monitors high-speed vibration of the input shaft to detect poor gear meshing or early bearing pitting at an early stage.
When using the 330101-08-20-10-02-05 probe, it must be used in conjunction with an intrinsically safe safety gate in an explosion-hazardous area. Utilizing its 0.8-inch threadless section, it should safely pass through the housing bracket. During installation, the output must be monitored with a multimeter, and the initial gap must be precisely locked at approximately -10V at the linear midpoint. It is strictly forbidden to cut the 1.0-meter of the built-in cable to maintain system impedance matching. Simultaneously, avoid collisions between the probe head and the axial surface, and ensure proper insulation and moisture-proof sealing of the coaxial connector to guarantee signal stability under harsh operating conditions.
The 330101-08-20-10-02-05 is a 3300 XL series 8 mm Eddy Current Proximity Probe manufactured by Bently Nevada. It is a non-contacting sensor used to measure shaft vibration, displacement, and keyphasor on large rotating machinery.
How to use products like the 330101-08-20-10-02-05?
To use it, it needs to be threaded into the machine's bearing housing or a dedicated probe bracket. The probe tip must face the metal surface of the rotating shaft and maintain a specific initial installation gap. It cannot work alone and must be connected to a 3300 XL Proximitor via an extension cable.
What is the primary function of the 330101-08-20-10-02-05 in the system?
Its primary function is serving as the "sensor" for the monitoring system, converting minute dynamic or static displacements on the shaft surface into electrical signals without contact via the eddy current principle, enabling real-time monitoring of bearing vibration and axial shift.
How to determine if the 330101-08-20-10-02-05 is damaged?
After disconnecting the extension cable, measure the resistance between the center pin and the outer shell of the probe's ClickLoc connector using a multimeter. The normal coil resistance for 3300 XL series probes is typically between 5.0 and 12.0 ohms; infinity or near zero indicates damage.
What should be paid attention to in the daily maintenance of the 330101-08-20-10-02-05?
The maintenance focus is on keeping the ClickLoc connector clean and never letting oil or dust contaminate its interior, which affects measurement accuracy; additionally, sharp bends in the cable must be avoided, keeping the bend radius above 25.4 mm.
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