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      330851-02-000-060-10-01-05

      Proximity Probe
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      3300 XL 25 mm Proximity Probe
      Linear Range: 12.7 mm
      AISI 4140 Steel
      PPS - Polyphenylene Sulfide
      AISI 304 Stainless Steel - SST

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      Technical specifications for 330851-02-000-060-10-01-05

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        330851-02-000-060-10-01-05
      • Estimated shipping dimensions:
        117.5x5x5cm
      • Weight:
        0.42 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Probe Case Type Option:
        M30x2 Thread
      • Unthreaded Length Option:
        0 mm
      • Overall Case Length Option:
        60mm
      • Total Length Option:
        1.0 metre (3.3 feet)
      • Armor Option:
        with SST Armor
      • Agency Approval Option:
        Multiple Approvals
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      Information

      Overview Manuals Common Applications Product Precautions
      The 330851-02-000-060-10-01-05 is a premium 3300 XL 25 mm eddy current proximity probe manufactured by the American brand Bently Nevada. It is engineered as a core safety component for critical rotating machinery, such as large steam turbines and compressors, to monitor shaft expansion and structural rigidity.
        • 1.0-meter integrated FluidLoc cable
        • Stainless steel armor sleeve
        • M30x2 threaded case
      The 3300 XL 25 mm Transducer System consists of a separate 25 mm probe, an extension cable, and a 3300 XL 25 mm Proximitor Sensor. The 0.787 V/mm (20 mV/mil) output gives this system a linear range of 12.7 mm (500 mils). Based on this linear range, the 3300 XL 25 mm Transducer System is suitable for measuring differential expansion (DE) on mid size to large steam turbine generators caused by the difference in growth rates between the turbine rotor and the machine stator (casing). The 3300 XL 25 mm probe comes in a large variety of case configurations to physically replace all standard 7200 25 mm, 7200 35 mm and 25 mm DE Integral transducer systems (including side and rear exit probes). The Proximitor Sensor also has an output that is identical to that of the 7200 and 25 mm DE Integral systems, allowing customers to upgrade without requiring any changes in the monitor configuration

      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 330851-02-000-060-10-01-05 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 for Differential Expansion (DE) monitoring in high, intermediate, and low-pressure cylinders of large steam turbine-generator sets.

      Nuclear Power
      Used for continuous monitoring of Axial Displacement and differential expansion of long-shaft saturated steam turbines in nuclear power plants, ensuring stable operation under strict nuclear safety and radiation redundancy standards.

      Petrochemical Refining Industry
      Used in large-scale rich gas and cracked gas compressors within million-ton ethylene or catalytic cracking units. It monitors the wear of large thrust bearings to prevent impeller damage caused by axial force imbalance.

      Hydroelectric Power
      Used for wide-range Shaft Runout/Vibration monitoring in large Francis or Kaplan hydro-turbine generator units.

      Coal Chemical Industry
      Used on Syngas Compressors and large pumps within coal-to-liquids (CTL) and coal-to-gas projects. Since coal chemical machinery endures massive thermal loads, this probe strictly monitors axial thermal deformation caused by extreme thermal stress.

       First, the flat metal target diameter must not be less than 61mm, otherwise the measurement sensitivity will be distorted. Second, a precise initial long-stroke voltage calibration is required to ensure the 12.7mm ultra-large range perfectly covers the maximum differential expansion of the unit. Third, when screwing in the M30 rigid case, the tightening torque must be strictly controlled at around 68 N·m to prevent excessive torque from squeezing, deforming, and damaging the internal coil. Fourth, even with armor protection, the cable bend radius must never be less than 25.4mm during routing, and hazardous area wiring codes must be strictly followed during installation.

      FAQ View All FAQ

      • What kind of device is 330851-02-000-060-10-01-05?
        It is a 3300 XL series 25mm large-range eddy current proximity probe, manufactured by Bently Nevada, USA.
      • What is the primary purpose of 330851-02-000-060-10-01-05?
        It is primarily used for measuring differential expansion (the relative thermal expansion difference between the rotor and casing) of large steam turbine generators to prevent rubbing between rotating and stationary parts.
      • What is the case thread specification of 330851-02-000-060-10-01-05?
        The case thread specification for the Bently Nevada proximity probe part number 330851-02-000-060-10-01-05 is metric M30x2.
      • How should 330851-02-000-060-10-01-05 be connected within a system?
        It must be connected via its integrated ClickLoc coaxial connector to its dedicated 25mm extension cable, and then wired into a 3300 XL 25mm Proximitor Sensor to output vibration/displacement voltage.
      • How long is the integrated lead cable of 330851-02-000-060-10-01-05?
        The integrated lead cable of the Bently Nevada proximity probe with part number 330851-02-000-060-10-01-05 is 1.0 meter (3.3 feet) long.
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