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      330780-51-CN

      11 mm Proximitor Sensor
      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 330780-51-CN is a 3300 XL 11 mm Proximitor Sensor configured for 5.0 m total electrical length and DIN-rail mounting, with a nominal matched-system sensitivity of 3.94 V/mm.
      • Manufacturer part number
        330780-51-CN
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        8.8cm x 3.5cm x 7cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete 330780-51-CN reference, unit photographs, installed chain details and required quantity.

      • 1

        Confirm the offer

        Review the offered DIN assembly, 5.0 m configuration, condition and included components in the quotation.

      • 2

        Arrange dispatch

        Confirm quantity, dispatch date, delivery destination and lead-time start before shipment.

      • Match the complete marking

        Send the full 330780-51-CN marking, DIN mounting and terminal photographs, together with the installed probe and cable identities.

      • Check the offered item before ordering

        Compare the offered 5.0 m conditioner with the installed 11 mm chain, barrier arrangement and monitor configuration using the applicable manufacturer instructions.

      Technical specifications for 330780-51-CN

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        330780-51-CN
      • Weight:
        0.2 kg
      • Tariff Code:
        8537101190
      • Electrical system length:
        5.0 m
      • Mounting:
        DIN rail, option 51
      • Sensor input:
        One 3300 XL 11 mm probe and extension cable
      • Nominal scale factor:
        3.94 V/mm (100 mV/mil)
      • Incremental scale-factor tolerance:
        ±10%, including interchangeability, at reference conditions
      • Linear range:
        4.0 mm; approximately 0.5–4.5 mm gap
      • Recommended gap:
        2.5 mm
      • Supply without barriers:
        -17.5 to -26 VDC
      • Supply with barriers:
        -23 to -26 VDC
      • Maximum current:
        12 mA
      • Output resistance:
        50 ohm
      • Frequency response:
        DC–8 kHz, +0 / -3 dB typical
      • Sensor operating temperature:
        -52 to +100 °C
      • Field conductor range:
        0.2–1.5 mm²; 0.25–0.75 mm² with ferrules
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • Bently Nevada 330780-51-CN conditions an 11 mm proximity-probe chain for extended-range displacement measurement, providing a voltage signal for position and vibration monitoring.
      Selected system: 5.0 m electrical length; DIN mount
      Nominal sensitivity: 3.94 V/mm (100 mV/mil)
      Linear measurement range: 4.0 mm in the matched system
      The 51 configuration uses DIN mounting and a 5.0 m electrical chain. Probe and extension-cable lengths must add to that total, and both must belong to the compatible 3300 XL 11 mm system. SpringLoc terminals provide the field-wiring connection between the conditioner and monitoring channel.

      The complete system has a nominal 3.94 V/mm sensitivity over a 4.0 mm linear range, with a recommended 2.5 mm gap. The reference target is AISI 4140 steel. Target material, temperature and electrical length affect the accuracy boundary; the extended displacement range is not a universal property of an arbitrary connected probe.

      Applications include axial position, ramp differential expansion and reciprocating-compressor rod position where the longer linear span is useful. Upgrading a 7200-series 11 mm or 14 mm installation requires replacement of all transducer components with the 3300 XL 11 mm arrangement and review of the receiving monitor configuration.
      Controller platform reference: Bently Nevada 3300 XL 11 mm transducer system. Follow the applicable system instructions and approved installation drawings.
      Original 11 mm system specifications and ordering information applicable to 330780-51-CN, including 5 m DIN configuration and operating limits. The separate installation guide covers DIN mounting, length matching, field wiring and extended-range response checks.
      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: The 330780-51-CN conditions one compatible 11 mm probe and cable chain. The selected total electrical length is 5.0 m; probe, extension cable and monitoring equipment are separate items.

      Application scope: These applications describe the completed transducer system. Select the target arrangement and receiving monitor function for the particular machine measurement.
      Prepare Bently Nevada 330780-51-CN for its configured installation using these checks.
      Electrical length

      Verify a 5.0 m total from the probe plus extension cable; physical reach alone does not establish compatibility.

      Mounting and access

      Secure the DIN assembly and provide access to terminals and coaxial connection without cable strain.

      Supply conditions

      Use the correct supply range for the barrier configuration and account for voltage loss at the sensor.

      System sensitivity

      Set the receiving channel for the 3.94 V/mm nominal 11 mm chain rather than an 8 mm scale factor.

      Target geometry

      Check target material, usable gap and neighboring-probe clearance against the 11 mm system requirements.

      Conversion checks

      For a 7200 upgrade, replace the entire transducer chain and verify the monitor supports the new system.

      Alternative Names

      330780-51-CN Bently Nevada 330780-51-CN

      Technical notes

      Reference conditions: Nominal performance uses 0–45 °C, -24 VDC, a 10 kohm load, AISI 4140 target and 2.5 mm gap.

      Reduced supply headroom: Operation more positive than -23.5 VDC can reduce the linear range even within the no-barrier supply window.

      Component temperatures: The conditioner operating limit is +100 °C; the separate probe temperature rating must not be applied to it.

      FAQ View All FAQ

      • Which mounting and electrical length are selected by 51 in 330780-51-CN?
        Option 51 selects a 5.0 m system with DIN mounting. The total includes the probe and compatible extension cable; it is not a 5 m field-wire limit.
      • Can 330780-51-CN operate with a 1 m probe and 4 m extension?
        Yes, when both are compatible 3300 XL 11 mm components: their electrical lengths total 5.0 m. An arbitrary cable with the same physical length is not equivalent.
      • Why must an 8 mm channel scale factor be changed for 330780-51-CN?
        The 11 mm system has a nominal sensitivity of 3.94 V/mm, whereas the common 8 mm system uses 7.87 V/mm. Leaving the wrong sensitivity in the receiving channel changes the interpreted displacement.
      • What gap interval is linear for the chain using 330780-51-CN?
        The nominal 4.0 mm linear range extends approximately from 0.5 to 4.5 mm. A 2.5 mm gap is recommended under the stated reference conditions.
      • How do barriers change the supply requirement for 330780-51-CN?
        Without barriers, the supply window is -17.5 to -26 VDC; with barriers it is -23 to -26 VDC. Operation more positive than -23.5 VDC can reduce the available linear range.
      • Does 330780-51-CN alone replace an entire 7200 11 mm or 14 mm system?
        No. All transducer components must be replaced by the compatible 3300 XL 11 mm chain, and the receiving monitoring system must be reviewed and updated as necessary.
      • Which field conductors fit the SpringLoc terminals of 330780-51-CN?
        The conductor range is 0.2–1.5 mm², or 0.25–0.75 mm² with ferrules. Use the specified shielded field-wiring arrangement and assess frequency response for long runs.
      • Can the +177 °C probe limit be applied to 330780-51-CN?
        No. The Proximitor Sensor operates from -52 to +100 °C. It is a separate electronic component with a lower upper-temperature limit than the probe and extension cable.
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