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      330851-02-000-070-90-00-CN

      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 330851-02-000-070-90-00-CN is a 3300 XL 25 mm proximity probe with an M30×2 threaded case and a 9.0 m unarmored lead. It senses target displacement within a matched differential-expansion transducer system.
      • Manufacturer part number
        330851-02-000-070-90-00-CN
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        23cm x 23cm x 4.5cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete Bently Nevada 330851-02-000-070-90-00-CN reference, label photographs and required quantity.

      • 1

        Confirm the offer

        Review the offered 330851-02-000-070-90-00-CN configuration, condition and included items against your installed equipment.

      • 2

        Arrange dispatch

        Confirm the quantity of 330851-02-000-070-90-00-CN, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Compare the full Bently Nevada 330851-02-000-070-90-00-CN marking and selected configuration with the installed component before accepting a replacement.

      • Check the offered item before ordering

        Request clear label and connector photographs of Bently Nevada 330851-02-000-070-90-00-CN. Ask your maintenance team to compare the offered unit with the installed equipment and the applicable Bently Nevada 3300 XL 25 mm Proximity Transducer System, 163236 Rev. M before ordering.

      Technical specifications for 330851-02-000-070-90-00-CN

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        330851-02-000-070-90-00-CN
      • Weight:
        0.54 kg
      • Tariff Code:
        8537101190
      • Transducer family:
        3300 XL 25 mm
      • Mounting thread:
        M30×2
      • Overall case length:
        70 mm
      • Unthreaded-length selection:
        0 mm
      • Total probe lead:
        9.0 m
      • Lead armor:
        None
      • Probe resistance, center to outer:
        8.8 ± 1.1 Ω
      • Probe tip / case material:
        PEEK / AISI 304 stainless steel
      • Cable construction:
        75 Ω triaxial, PFA-insulated FluidLoc
      • Nominal scale factor:
        0.787 V/mm nominal
      • Nominal 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 330851-02-000-070-90-00-CN carries a collar-displacement signal along its nine-metre integral lead to a remote conditioner. Its 70 mm threaded body provides mechanical reach without changing the required nine-metre electrical match.
      Case interface: M30×2 threaded construction
      Integral lead: 9.0 m unarmored FluidLoc cable
      Matched-system output: 0.787 V/mm nominal
      The M30×2 probe has a 70 mm overall case length, a zero unthreaded-length selection and a 9.0 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 9 m probe lead must be treated as part of the corresponding 9 m calibrated system, not extended as though it were the 1 m version. Its disconnected center-to-outer-conductor resistance is 8.8 ± 1.1 Ω. The Proximitor Sensor provides the electrical excitation and conditioned output; the probe is not a stand-alone voltage transmitter.

      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 long-lead integrity, 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 9.0 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 330851-02-000-070-90-00-CN for its configured installation using these checks.
      Preserve electrical length

      The 9 m probe lead must be treated as part of the corresponding 9 m calibrated system, not extended as though it were the 1 m version.

      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

      330851-02-000-070-90-00-CN Bently Nevada 330851-02-000-070-90-00-CN

      Technical notes

      Electrical relationship: The 9 m probe lead must be treated as part of the corresponding 9 m calibrated system, not extended as though it were the 1 m version. Its disconnected center-to-outer-conductor resistance is 8.8 ± 1.1 Ω. The Proximitor Sensor provides the electrical excitation and conditioned output; the probe is not a stand-alone voltage transmitter.

      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

      • Why does the nine-metre version of 330851-02-000-070-90-00-CN need its own matching conditioner?
        Its integral 9.0 m lead defines the electrical-length selection. Use the corresponding 9 m 3300 XL 25 mm Proximitor Sensor; a conditioner chosen for a different total length does not preserve calibration.
      • How is the 70 mm case length of 330851-02-000-070-90-00-CN separated from measurement travel?
        The 70 mm dimension is mechanical reach of the M30×2 body. The matched system has a nominal 12.7 mm linear range under the specified calibration conditions, independent of that case length.
      • Can spare lead on 330851-02-000-070-90-00-CN be cut away after routing?
        No. Retain the calibrated lead and arrange excess cable without sharp bends or abrasion. The minimum bend radius is 25.4 mm, and the connector should remain protected and accessible.
      • What resistance indicates an intact long lead on 330851-02-000-070-90-00-CN?
        The isolated 9.0 m probe path is 8.8 ± 1.1 Ω from centre to outer conductor. Do not apply the lower 1 m probe resistance or include other connected components in that measurement.
      • Where should supply voltage be checked when the range of 330851-02-000-070-90-00-CN seems limited?
        Check the Proximitor Sensor terminals under load. Operation more positive than -23.5 Vdc can reduce the system linear range; the passive probe itself does not receive a separate DC transmitter supply.
      • Which nominal output interval corresponds to the calibrated gap of 330851-02-000-070-90-00-CN?
        For the matched system under reference conditions, approximately 0.63–13.33 mm corresponds to about -1.5 to -11.5 Vdc. These are conditioned-system values, not voltage generated directly by the bare probe.
      • How does receiving-channel loading affect verification of 330851-02-000-070-90-00-CN?
        Reference performance uses a 10 kΩ load and the Proximitor Sensor has 50 Ω output resistance. Evaluate the receiving input and field wiring together before comparing measured output with the nominal scale factor.
      • Can 330851-02-000-070-90-00-CN extend an existing 7200 measurement chain by changing only the probe?
        No. Conversion from 7200 or 25 mm DE Integral equipment requires the probe, extension cable where used, and Proximitor Sensor to be selected as a matched 3300 XL 25 mm system.
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