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3300 XL 8 mm Probe
3/8-24 UNF thread
without armor
Linear Range: 2 mm (80 mils)
AISI 303 or 304 stainless steel (SST)
Polyphenylene sulfide (PPS)
Minimum Bend Radius: 25.4 mm (1.0 in)
The 330104-04-10-50-02-05 is the complete product order number for a 3300 XL 8mm proximity sensor probe manufactured by Bentley Nevada. This sensor is primarily used for vibration and displacement monitoring in industrial rotating machinery.
One 3300 XL 8 mm probe
One 3300 XL extension cable
One 3300 XL Proximitor Sensor
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 330104-04-10-50-02-05 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.
Thermal Power
Used to continuously monitor shaft vibration and axial displacement of large Steam Turbine Generators, preventing rotor bending or catastrophic failure caused by thermal expansion or imbalance.
Hydroelectric Power
Installed on the main shafts and thrust bearings of Hydro Turbines to monitor low-speed shaft orbit/radial play and thrust clearance, ensuring stability under hydraulic impact.
Oil & Gas
Used on large high-pressure water injection pumps and gas export compressors on offshore drilling platforms or onshore stations for real-time anti-surge and vibration monitoring.
Petroleum Refining
Monitors core refinery assets, such as the Flue Gas Turbines and Air Compressors in Fluid Catalytic Cracking Units (FCCU), providing API 670 standard over-limit trip protection.
Iron & Steel Metallurgy
Applied to Blast Furnace Blowers and Top Gas Recovery Turbine (TRT) units in ironmaking, preventing severe vibration caused by bearing wear under dusty and high-temperature conditions.
When deploying the 330104-04-10-50-02-05 proximity probe, especially in high-demand Oil and Gas applications, three critical practices must be observed. First, never cut, splice, or alter the 5-meter tuned cable because any change in length will destroy the impedance matching and cause massive calibration errors. Second, during installation, you must monitor the Proximitor output voltage with a multimeter to precisely adjust the initial installation gap to the midpoint of its linear range, which is typically set around minus 10 VDC. Lastly, since this is a reverse-mount style operating in pressurized and oily environments, ensure the probe housing seal is completely intact and always utilize the integrated connector protector to prevent oil and gas migration into the coaxial connection, which can cause severe signal interference.
What exactly is the product 330104-04-10-50-02-05?
This is a 3300 XL 8mm Proximity Probe from Bently Nevada. It is used for non-contact shaft vibration, axial displacement, and speed measurements on critical industrial rotating machinery such as turbines and compressors.
How does the 330104-04-10-50-02-05 proximity probe work?
It operates on the eddy current principle. The probe tip emits a high-frequency electromagnetic field. As the metal shaft surface moves closer or further away, eddy currents are induced on the target surface, changing the loop impedance. This subtle change is converted into a voltage signal by a Proximitor sensor.
Why use a non-contact probe like the 330104-04-10-50-02-05?
Critical rotating machinery shafts spin at extremely high speeds, making mechanical contact measurement impossible due to wear. The non-contact design ensures no physical friction with the shaft surface, delivering exceptional accuracy and a long lifespan even in harsh industrial environments.
What equipment must be used alongside the 330104-04-10-50-02-05?
It must be paired with a corresponding 3300 XL Proximitor Sensor (typically a 5m system version). The Proximitor processes the signal and sends it via an extension cable to a monitoring module, such as the Bently Nevada 3500/42M.
What is the most critical factor when installing the 330104-04-10-50-02-05?
The most critical factor when installing the 330104-04-10-50-02-05 probe is setting the correct target clearance (voltage gap) while maintaining physical side clearance to prevent cross-talk and target distortion.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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