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      Epro PR9268/200-000
      Epro PR9268/200-000

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      Low-tuned electrodynamic velocity sensor

      PR9268/200-000

      Product Information:

      The PR9268/200-000 is a classic and widely recognized electrodynamic vibration velocity sensor. Utilizing a mechanical "spring-mass" inertial system, it is commonly used to measure absolute vibration (i.e., casing vibration) at the bearing housings of equipment such as steam turbines, gas turbines, hydro turbines, compressors, large fans, and pumps.

      Product image is representative; revision or series may vary. Contact us to request a specific version.
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        • PRODUCT OVERVIEW

          What is this product?

          EPRO PR9268/200-000 is a low-tuned electrodynamic velocity sensor for absolute vibration measurement on critical rotating machinery. The official PR9268 technical data places this version in the vertically oriented /20x group and specifies 28.5 mV/mm/s sensitivity, a 4 to 1000 Hz frequency range, 4.5 Hz natural frequency, amplitude linearity below 2%, resistance of 1875 ohms ±10% and inductance not exceeding 90 mH. Installation must preserve the documented measuring direction and signal interface.

          Official source

          Emerson EPRO PR9268 Installation Guide MHM-97479, Rev. 3.9, and PR9268 specification sheet.
        • APPLICATIONS

          Where it may be used

          Use this exact vertical sensor configuration only where the machinery casing, mounting angle, vibration range and connected monitor input agree with the official PR9268 data.

          Vertical Casing Motion

          Measures absolute vibration on a vertically oriented machine surface within the documented ±30° deviation when no sinking current is used.

          Turbine Frame Monitoring

          Provides a low-frequency velocity signal for qualified steam, gas or hydro turbine casing measurement points.

          Pump Vibration Survey

          Supports continuous case-vibration monitoring on pumps or compressors whose input channel matches 28.5 mV/mm/s sensitivity.

          Sensor Loop Renewal

          Restores an existing PR9268/20x measurement channel after suffix, orientation, wiring and monitor input are verified.
      Technical specifications for

      PR9268/200-000

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        Epro
      • Product Category:
        Sensor
      • Sensor Orientation:
        Vertical, ± 30° (without sinking current)
      • Sensitivity:
        28.5 mV/mm/s (723.9 mV/in/s)
      • Frequency Range:
        4 to 1000Hz
      • Natural Frequency:
        4.5Hz ± 0.75Hz @ 20°C (68°F)
      • Vibration Amplitude (Mechanical Limit):
        3000µm (4000µm) peak-peak
      • Amplitude Linearity:
        < 2%
      • Resistance:
        1875Ω ± 10%
      • Inductance:
        ≤ 90 mH
      • Series:
        Epro Sensors and Measurement Chains
      • Stock Availability:
        20
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      Alternative Names

      PR 9268/200-000 PR9268 200 000 PR9268/200-000 Vertical Velocity Sensor

      Information

      Overview Manuals Vertical Sensor Role Machine Casing Fit Signal Commissioning

      Features:

      • Electrodynamic velocity-sensor construction measures absolute mechanical vibration without an external power supply for the sensing element.
      • The PR9268/20x configuration is specified for vertical measurement and permits ±30° deviation from its nominal installation orientation.
      • Official dynamic data specifies 28.5 mV/mm/s sensitivity, a 4 to 1000 Hz frequency range and a 4.5 Hz natural frequency at 20 °C.

      PR9268/200-000 is an EPRO electrodynamic velocity sensor for monitoring absolute bearing-housing or machine-casing vibration in the vertical measuring direction. Its internal seismic system generates a proportional voltage signal from mechanical motion, allowing the sensor to work with compatible vibration-monitoring inputs without a separate sensor supply. The complete /200-000 identity, mounting direction, connector arrangement and connected measuring chain must be checked before replacement so that the documented sensitivity and frequency response are preserved.

      Official source: Emerson EPRO PR 9268 Electrodynamic Velocity Sensor documentation. Confirm the exact suffix and installation orientation against the sensor nameplate and the monitoring-system manual.

      EPRO PR9268/200-000 electrodynamic velocity sensor manuals, specification sheet and related resources

      Important Notice: Other accessories, manuals, cables, calibration data, software, licenses and related items are not included unless listed in the stock item description. All prices are shown in USD.

      PR9268/200-000 belongs to the PR9268/20x vertical-measurement group. Install it only at a qualified absolute-vibration point where the mounting plane and allowed angular deviation agree with the official installation guide.

      This sensor family is used on critical turbomachinery such as steam, gas and hydro turbines, compressors, pumps and fans for case-vibration measurement. The vibration range and connected monitoring input must be verified for the actual machine.

      Before return to service, confirm wiring polarity, cable condition, sensor orientation and the monitoring channel configured for 28.5 mV/mm/s sensitivity. Compare the live vibration response with the machine commissioning procedure.

      Technical notes

      EPRO PR9268/200-000 belongs to the PR9268/20x-x00 low-tuned electrodynamic velocity-sensor group for vertical measurement. Official data specifies 28.5 mV/mm/s sensitivity, a 4 to 1000 Hz frequency range, 4.5 Hz natural frequency, less than 2% amplitude linearity, 1875 ohm resistance and inductance not exceeding 90 mH. Verify the full suffix and mounting orientation before installation.

      Verify the Exact Vertical Sensor

      Confirm the complete PR9268/200-000 designation, vertical measuring orientation, terminal arrangement and unit marking before replacement. If the final suffix or mounting direction cannot be read, provide a clear nameplate and installation photo so the exact EPRO version can be matched.

      Quotation Details for PR9268/200-000

      Please provide the quantity, complete model and suffix, nameplate photo, connected monitoring module, mounting direction, receiving country and required delivery date. Moore Automated uses these details to verify the correct PR9268/20x configuration and prepare an accurate quotation.

      Customs & shipping dimensions / weight

      • Packed shipping dimensions
        Confirmed after final packing
        Confirmed from the supplied-item packing record.
      • Packed shipping weight
        Confirmed after final packing
        Confirmed from actual-item weighing.
      • HS / customs code
        Not officially confirmed
        Verify for the destination before shipment.
      • Country of origin
        Not officially confirmed
        Verify from the item nameplate or COO.
      • Ships from
        Xiamen, Fujian, China
        Dispatch location is confirmed in the written quotation.
      • Customs documents
        Confirmed for the destination
        Available document scope is stated in the written quotation.
      PRODUCT & ORDER FAQS

      Questions buyers ask about PR9268/200-000

      • What does PR9268/200-000 identify?

        It identifies an EPRO low-tuned electrodynamic velocity sensor in the PR9268/20x-x00 group, intended for absolute vibration measurement in the vertical direction.

      • How should the mounting orientation be checked?

        The official PR9268 data specifies vertical operation for the /20x versions, with a maximum deviation of ±30° without sinking current. Match the installed orientation before commissioning.

      • Which sensitivity and frequency range apply to this sensor?

        For the PR9268/20x group, the official specifications state 28.5 mV/mm/s sensitivity and a 4 to 1000 Hz frequency range.

      • Where can this low-tuned sensor be applied?

        It is designed for absolute case-vibration measurement on critical rotating machinery such as turbines, compressors, pumps and fans when the documented vertical mounting and signal interface are satisfied.

      • What must be verified before wiring the PR9268/200-000?

        Check the complete suffix, terminal polarity, cable route, measuring direction, mounting surface and the connected monitoring input against the EPRO installation guide.

      • How is available stock confirmed for this exact suffix?

        Provide the full PR9268/200-000 designation, quantity and a nameplate photo if available so Moore Automated can verify the correct vertical version and unit condition.

      • Is a one-year warranty available?

        Yes. Moore Automated provides a one-year warranty for the quoted PR9268/200-000 unit, subject to the written quotation and supply condition.

      • What information is needed for shipment?

        Send the receiving country, address, required date, quantity and any certificate or packing request so freight, customs-document scope and dispatch timing can be confirmed.
      All FAQ
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            Moore Automated supplies quality EPRO vibration-sensor replacement units and compatible spares for verified measurement channels. Exact suffix and orientation matching helps restore protection coverage and reduce machinery downtime.

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          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

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