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      990-05-70-01-00

      Vibration Transmitter
      Ships by Thursday, November 12
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Bently Nevada 990-05-70-01-00 is a two-wire vibration transmitter with a 0-5 mils peak-to-peak span and a 7.0 m 3300 NSv transducer system.
      • Manufacturer part number
        990-05-70-01-00
      • Shipping
        Swift global dispatch
      • Condition
        New, original product
      • Shipping size (est.)
        10cm x 7.4cm x 6cm
      • Country of Origin
        USA

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      What happens after you enquire

      • 0

        Review your reference

        Send the complete Bently Nevada 990-05-70-01-00 reference, label photographs and required quantity. Include the 0-5 mils peak-to-peak scale and 7.0 m transducer chain.

      • 1

        Confirm the offer

        Review the offered revision, condition, included items and documents against the confirmed installation.

      • 2

        Arrange dispatch

        Confirm quantity, dispatch date, lead-time start and delivery details in the quotation.

      • Match the complete marking

        Include the complete Bently Nevada 990-05-70-01-00 marking and any hardware revision on the item. Include the 0-5 mils peak-to-peak scale and 7.0 m transducer chain.

      • Check the offered item before ordering

        Request available label and connector photos. Have your maintenance team compare the offered 990-05-70-01-00 with the installed equipment and applicable Bently Nevada documentation.

      Technical specifications for 990-05-70-01-00

      • Manufacturer:
        Bently Nevada
      • Product Category:
        Machinery Monitoring Systems
      • Spare Part Number:
        990-05-70-01-00
      • Weight:
        0.45 kg
      • Tariff Code:
        8537101190
      • Measurement:
        Radial vibration
      • Full-scale span:
        0-5 mils peak-to-peak
      • Electrical system length:
        7.0 m
      • Signal output:
        4-20 mA; two-wire
      • Terminal supply:
        +12 to +35 VDC
      • Maximum loop resistance:
        1000 ohms at 35 VDC; includes cable
      • Frequency response:
        5 Hz-6000 Hz; +0/-3 dB
      • Current limit:
        23 mA typical
      • Mounting:
        35 mm DIN-rail clips
      • Transmitter temperature:
        -35 to +85 degrees C
      • Fault current:
        Below 3.6 mA
      View as PDF Ask for Quote

      Information

      Overview Downloads Applications / Compatibility Product Precautions
      • Bently Nevada 990-05-70-01-00 brings radial shaft motion into the machinery controller through a powered current loop, while retaining a separate diagnostic connection for the probe signal.
      Measurement span: 0-5 mils peak-to-peak
      Transducer system: 7.0 m, compatible 3300 NSv probe and cable
      Mounting: 35 mm DIN-rail clips
      The selected configuration combines a 0-5 mils peak-to-peak measurement span, a 7.0 m transducer system and 35 mm din-rail clips. The integrated proximity conditioner accepts one compatible 3300 NSv probe with its matched extension cable; the probe lead and extension together establish the calibrated length.

      The two-wire loop supplies power and transmits peak-to-peak shaft vibration amplitude as 4-20 mA. The receiving control system supplies the alarm and protection logic. Non-interacting zero and span adjustments support loop calibration, while the TEST input accepts a AC signal generator for controlled output checks.

      The separate PROX OUT/COM and coaxial connection provide the dynamic and gap signal for diagnosis. This output is non-isolated and must be used with the specified test arrangement. Not OK/Signal Defeat drives the loop below 3.6 mA on a faulty transducer connection; power-up and fault recovery require approximately 2-3 seconds.
      Controller platform reference: 3300 NSv transmitter system. Retain the calibrated chain and receiver scale.
      The original technical excerpt for Bently Nevada 990-05-70-01-00 covers transmitter operation, electrical limits and diagnostic connections. The separate installation guide covers measurement scaling, loop burden, cable matching and controlled loop tests.
      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: 990-05-70-01-00 connects a matched NSv probe and extension to a powered current-loop receiver. Probe, cable, test adapter and receiving control equipment are separate unless included in the quotation.

      Application scope: Use the 0-5 mils peak-to-peak scale for shaft-vibration supervision of the assigned machine point. Protective alarm logic remains in the receiving system.
      Prepare Bently Nevada 990-05-70-01-00 for its configured installation using these checks.
      Retain the measurement scale

      Keep 0-5 mils peak-to-peak and its units in the receiver configuration.

      Match the calibrated chain

      The probe and extension together must equal 7.0 m.

      Check loop burden

      Provide the required terminal voltage after wiring and receiver losses.

      Keep test grounding controlled

      The diagnostic connection is non-isolated.

      Recognize Not OK

      Distinguish below-3.6 mA fault and startup states from valid measurements.

      Restore protection deliberately

      Remove test inputs and verify stable measurement before clearing the approved bypass.

      Alternative Names

      990 05 70 01 00 Bently Nevada 990-05-70-01-00

      Technical notes

      Burden calculation: Add controller input resistance and loop-cable resistance before selecting supply voltage. The maximum permitted burden depends on voltage available at the transmitter.

      Waveform access: Use the buffered proximity connection for waveform investigation while checking the main current loop separately for its calibrated displacement span.

      FAQ View All FAQ

      • What displacement span corresponds to the full output of 990-05-70-01-00?
        The selected vibration range is 0-5 mils peak-to-peak, approximately 0-125 micrometres peak-to-peak. Map the 4-20 mA input to this span in the receiving controller.
      • Does 990-05-70-01-00 need a separate Proximitor Sensor?
        No. Signal conditioning is integrated into the transmitter. It accepts a compatible 3300 NSv probe and extension cable directly.
      • How is a 7 m probe chain assembled for 990-05-70-01-00?
        The probe lead and matching extension cable together form the selected 7.0 m electrical system. Do not treat a 7 m extension alone as the complete chain.
      • What loop voltage must reach the terminals of 990-05-70-01-00?
        The transmitter requires +12 to +35 VDC at its terminals. Allow for wiring and receiver voltage drop rather than checking only the power-supply nameplate.
      • Can 990-05-70-01-00 drive a 1000-ohm loop from every allowed supply voltage?
        The 1000-ohm maximum including cable is specified at 35 VDC. It is not an unconditional load allowance across the full supply range.
      • What occurs when the probe circuit of 990-05-70-01-00 becomes Not OK?
        The signal drops below 3.6 mA within 100 microseconds. After the condition clears, output restoration takes approximately 2-3 seconds.
      • Which output of 990-05-70-01-00 is intended for waveform diagnosis?
        PROX OUT, COM and the coaxial connection expose the dynamic and gap signal. This non-isolated diagnostic path is different from the proportional 4-20 mA process loop.
      • Does 990-05-70-01-00 include an alarm relay?
        The transmitter supplies a proportional signal; the receiving machinery control system performs alarm comparison and protection logic. It is not a stand-alone relay monitor.
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