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      330851-02-000-030-10-00-00

      Proximity Probe
      Ships by Sunday, November 8
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Bently Nevada 330851-02-000-030-10-00-00 is a 3300 XL 25 mm proximity probe with an M30×2 threaded case and a 1.0 m unarmored lead. It senses target displacement within a matched differential-expansion transducer system.
      • Manufacturer part number
        330851-02-000-030-10-00-00
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        4.5cm x 3.8cm x 116cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete Bently Nevada 330851-02-000-030-10-00-00 reference, label photographs and the required quantity.

      • 1

        Confirm the offer

        Compare the offered 330851-02-000-030-10-00-00 configuration, condition and included items with your installed equipment before accepting the quotation.

      • 2

        Arrange dispatch

        Confirm the quantity of 330851-02-000-030-10-00-00, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Compare the complete Bently Nevada 330851-02-000-030-10-00-00 marking, hardware configuration and connections with the installed item before approving a replacement.

      • Check the offered item before ordering

        Request clear label and connector photographs of Bently Nevada 330851-02-000-030-10-00-00. Ask your maintenance team to compare the offered item with the installed equipment and the applicable Bently Nevada 3300 XL 25 mm Proximity Transducer System, 163236 Rev. M before ordering.

      Technical specifications for 330851-02-000-030-10-00-00

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        330851-02-000-030-10-00-00
      • Weight:
        0.26 kg
      • Tariff Code:
        8537101190
      • Transducer family:
        3300 XL 25 mm
      • Mounting thread:
        M30×2
      • Overall case length:
        30 mm
      • Unthreaded-length selection:
        0 mm
      • Total probe lead:
        1.0 m
      • Lead armor:
        None
      • Probe resistance, center to outer:
        6.2 ± 0.5 Ω
      • Probe tip / case material:
        PEEK / AISI 304 stainless steel
      • Cable construction:
        75 Ω triaxial, PFA-insulated FluidLoc
      • Matched-system scale factor:
        0.787 V/mm nominal
      • Matched-system linear range:
        12.7 mm under specified calibration conditions
      • Probe continuous temperature:
        -35 to +200 °C
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • Bently Nevada 330851-02-000-030-10-00-00 supports non-contact observation of rotor growth relative to the turbine casing. The compact threaded case places the sensing face close to a turbine differential-expansion target, while its short lead connects into a separately matched extension-cable chain.
      Case interface: M30×2 threaded construction
      Integral lead: 1.0 m unarmored FluidLoc cable
      Matched-system output: 0.787 V/mm nominal
      The M30×2 probe has a 30 mm overall case length, a zero unthreaded-length selection and a 1.0 m total lead. The selected 00 armor option uses an unarmored lead. PEEK forms the probe tip, AISI 304 stainless steel forms the case, and the 75 Ω triaxial FluidLoc cable uses PFA insulation.

      The 1 m probe lead combines with the appropriate 4 m or 8 m extension cable to form a 5 m or 9 m system using the matching 3300 XL 25 mm Proximitor Sensor. Disconnected probe resistance from center to outer conductor is 6.2 ± 0.5 Ω. Cable and conditioner selection must preserve the complete electrical length.

      For the complete matched system, nominal sensitivity is 0.787 V/mm and the linear range is 12.7 mm. The reference conditions include a -24 Vdc supply, a 10 kΩ load, a Bently Nevada AISI 4140 steel target at least 61 mm in diameter, a 7 mm gap and component temperatures from 0 to +45 °C. Probe survivability to +200 °C does not make these reference accuracy conditions universal.
      Controller platform reference: 3300 XL 25 mm system. Match electrical length and target calibration.
      Original Bently Nevada pages explain the 25 mm sensing system, calibrated response, materials and applicable cable options. The separate installation guide covers short-lead system assembly, connector protection and displacement verification.
      Original manufacturer pages retain their technical context. Use the Apter Power guide with the applicable manufacturer instructions and approved installation design.
      System and supply context: This 1.0 m probe is one component of the 3300 XL 25 mm transducer chain. The Proximitor Sensor, any required extension cable, brackets and monitor are separate unless itemized.

      Application scope: Differential-expansion performance depends on the collar or ramp geometry, target material and configured channel arrangement. Mechanical fit alone does not establish electrical or calibration compatibility.
      Prepare Bently Nevada 330851-02-000-030-10-00-00 for its configured installation using these checks.
      Preserve electrical length

      The 1 m probe lead combines with the appropriate 4 m or 8 m extension cable to form a 5 m or 9 m system using the matching 3300 XL 25 mm Proximitor Sensor.

      Protect the connector

      Keep the high-temperature ClickLoc connector clean, finger tight and inside its connector protector.

      Check target geometry

      Use the intended collar or ramp surface and verify the target material against the calibration.

      Separate torque limits

      Do not apply probe-body tightening torque to the electrical connector; connector maximum is 0.565 N·m.

      Observe thermal boundaries

      Apply probe, cable and Proximitor Sensor temperature limits separately; avoid treating short-term exposure as continuous service.

      Verify motion response

      Test the complete channel through controlled relative movement before restoring the machine protection function.

      Alternative Names

      330851-02-000-030-10-00-00 Bently Nevada 330851-02-000-030-10-00-00

      Technical notes

      Electrical relationship: The 1 m probe lead combines with the appropriate 4 m or 8 m extension cable to form a 5 m or 9 m system using the matching 3300 XL 25 mm Proximitor Sensor. Disconnected probe resistance from center to outer conductor is 6.2 ± 0.5 Ω. Cable and conditioner selection must preserve the complete electrical length.

      Measurement boundary: For the complete matched system, nominal sensitivity is 0.787 V/mm and the linear range is 12.7 mm. The reference conditions include a -24 Vdc supply, a 10 kΩ load, a Bently Nevada AISI 4140 steel target at least 61 mm in diameter, a 7 mm gap and component temperatures from 0 to +45 °C. Probe survivability to +200 °C does not make these reference accuracy conditions universal.

      Technical reference: Bently Nevada 3300 XL 25 mm Proximity Transducer System, 163236 Rev. M.

      FAQ View All FAQ

      • Which electrical-length combinations work with 330851-02-000-030-10-00-00?
        The integral lead is 1.0 m. Use the appropriate 4.0 m or 8.0 m extension cable to complete a 5 m or 9 m calibrated system with the corresponding 3300 XL 25 mm Proximitor Sensor.
      • Why is 330851-02-000-030-10-00-00 suited to differential-expansion measurements?
        In a matched 25 mm system, the nominal scale factor is 0.787 V/mm and the linear range is 12.7 mm. That range supports observation of turbine rotor growth relative to the casing; the target and mounting arrangement still determine the usable measurement geometry.
      • What resistance check is appropriate for the lead of 330851-02-000-030-10-00-00?
        For the 1.0 m probe, resistance from the center conductor to the outer conductor is 6.2 ± 0.5 Ω. Measure the disconnected probe path under the maintenance procedure and keep it separate from extension-cable resistance.
      • Does the short case of 330851-02-000-030-10-00-00 remove the need to check mounting clearance?
        No. The M30×2 case has a 30 mm overall case length and a zero unthreaded-length selection. Check the thread engagement, target clearance and connector route against the actual machine installation.
      • Can 330851-02-000-030-10-00-00 be mixed with an older 7200 extension cable during an upgrade?
        No. An upgrade from the older 7200 or 25 mm DE Integral system requires the probe, extension cable and Proximitor Sensor to be changed together to 3300 XL 25 mm components.
      • How should the ClickLoc connection on 330851-02-000-030-10-00-00 be protected from moisture?
        Use the supplied connector protectors and keep the connector clean during assembly. The front and rear probe seals and FluidLoc lead help block moisture migration, but the connected system is non-submersible.
      • What is the nominal linear gap interval for a system using 330851-02-000-030-10-00-00?
        Under the specified calibration conditions, the interval is approximately 0.63–13.33 mm, corresponding to about -1.5 to -11.5 Vdc. These values describe the matched system rather than an unconditioned probe output.
      • How can the measurement chain containing 330851-02-000-030-10-00-00 be checked mechanically?
        Move the installed transducer arrangement relative to the shaft collar to simulate displacement and compare the indicated change with a mechanical reference. An appropriate sliding bracket keeps the probe aligned during this verification.
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