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      330195-02-12-50-05

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

      Product Describe：

      Extended Temperature 
      Range Reverse Mount Probe
      3/8-24 UNF threads
      Linear Range: 2.0 mm (80 mils)
      Polyphenylene Sulfide - PPS
      AISI 304 Stainless Steel - SST

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      Technical specifications for 330195-02-12-50-05

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        330195-02-12-50-05
      • Estimated shipping dimensions:
        1.3x1.2x69cm
      • Weight:
        0.04 kg
      • Tariff Code:
        8537101190
      • Counliy of origin:
        USA
      • Total Length Optio:
        5.0 meters (16.4 feet)
      • Agency Approval Option:
        CSA, ATEX, IECEx approvals
      • Output Resistance:
        50 Ω
      • Power Requirement:
        -17.5 Vdc to -26 Vdc
      • Scale Factor / Sensitivity:
        7.87 V/mm (200 mV/mil)
      • Cable Type:
        75 Ω Triaxial Cable
      • Unthreaded Length:
        2.0 inches
      • Overall Case Length:
        1.2 inches
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      Information

      Overview Manuals Common Applications Product Precautions
      The 330195-02-12-50-05 is a 3300 XL series 8mm eddy current reverse-mounted explosion-proof radial displacement and vibration probe manufactured by Bentley Nevada, USA. As an important monitoring hardware component for critical rotating machinery in industrial applications, it is commonly used to accurately measure the radial vibration, axial displacement, or rotational speed signals of shafts in a non-contact manner.
        • 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 330195-02-12-50-05 ETR Reverse Mount 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.
      Power Generation
      Monitoring the dynamic bearing vibration and axial shaft displacement of steam turbine generators to prevent rotor-to-stator contact.

      Oil & Gas
      Monitoring high-pressure water injection pumps and gas export compressors on offshore platforms or onshore stations to prevent catastrophic mechanical failures.

      Petrochemical & Refining Industry
      Monitoring the axial displacement and radial vibration of core cracked gas compressors and high-pressure hydrogenation pumps to ensure long-term safe operation in hazardous areas.

      Coal Chemical Industry
      Monitoring ultra-large air compressors and oxygen compressors in Air Separation Units (ASU) to prevent bearing wear and rotor instability under high-speed operation.

      Paper & Pulp Industry
      Monitoring micron-level dynamic runout of driving bearings in high-speed paper machine drying cylinders, press sections, and large pulpers.

       Four critical precautions must be observed when using the 330195-02-12-50-05 probe. First, never strike or scratch the PPS plastic tip to prevent internal coil damage. Second, strictly follow the initial gap voltage calibration of approximately -9Vdc during installation to ensure it sits at the center of the 2.0mm linear range. Third, maintain a cable bend radius greater than 25.4mm during routing, and also avoid running it alongside high-voltage power cables to prevent signal interference. Fourth, control the tightening torque when screwing in the reverse-mount probe, and regularly inspect the seals of the hazardous-area connectors and the Viton O-ring.

      FAQ View All FAQ

      • What kind of device is 330195-02-12-50-05?
        It is a 3300 XL series 8mm eddy current proximity probe with a reverse mount configuration, manufactured by Bently Nevada, USA.
      • What is the primary purpose of 330195-02-12-50-05?
        It is used for non-contact precision measurement of axial displacement, radial vibration, and rotational speed of large rotating machinery, such as steam turbines and compressors.
      • How should 330195-02-12-50-05 be used and connected?
        It must be connected directly to a 3300 XL 5-meter Proximitor Sensor using its integrated ClickLoc connector, which then outputs voltage signals to monitoring instruments.
      • Is an extension cable required when using 330195-02-12-50-05?
        No. It is a 5-meter direct-connect probe, and its cable connects directly to a 5-meter Proximitor sensor without extension cables.
      • What target material is 330195-02-12-50-05 standardly calibrated against?
        It is standardly calibrated against AISI 4140 steel at the factory. Re-calibration is needed if the field shaft material differs.
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