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        990-10-50-03-00

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 990-10-50-03-00 Vibration Transmitter is an integrated, loop-powered two-wire device designed to provide continuous machinery protection by transforming complex proximity probe signals into a standard industrial format.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 990-10-50-03-00

        • Manufacturer:
          Bently Nevada
        • Part Number:
          990-10-50-03-00
        • Product Family:
          990 Vibration Transmitter
        • Product Type:
          Vibration Transmitter
        • Full-scale:
          0-10 mils pp (0-250 μm pp)
        • System Length:
          5.0 meters (16.4 feet)
        • Mounting Option:
          DIN clips and screws
        • Output Signal:
          4 to 20 mA proportional to peak-to-peak vibration amplitude
        • Power Supply:
          Two-wire, loop-powered
        • Integrated Sensor:
          Proximitor Sensor (no external unit required)
        • Weight:
          0.5 kg
        • Estimated shipping dimensions:
          7.4x5.8x10cm
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Use Cases Monitoring & Control Configuration & Programming

        Features:

        • Two-Wire Loop-Powered Link Between the 3300 NSv Proximity Probe and Machinery Control System
        • Integrated Proximitor Sensing with Diagnostic Access and Not OK Signal Protection
        • Designed for OEM Centrifugal Compressor and Small Rotating Equipment Applications
        The 990-10-50-03-00 serves as a vibration transmitter intended primarily for original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors, or fans who prefer to provide a simple 4 to 20 mA proportional vibration signal as the input to their machinery control system. Seamless integration is standard with the 990-10-50-03-00; however, using the non-interacting zero and span potentiometers located under the transmitter label will allow straightforward loop adjustment, and the 990-10-50-03-00 has made improvements in several areas over previous designs in addition to incorporating an integrated Proximitor sensor within the compact housing.

        The 990-10-50-03-00 provides essential vibration monitoring functions common to the measurement point, and is a critical component of the protection path, directly affecting the proper, normal operation of the overall machinery control system. One 990-10-50-03-00 transmitter is required per monitoring channel depending on the desired measurement coverage. The 990-10-50-03-00 occupies minimal space near the machine case and is supplied with DIN clips and screws as standard mounting options, with potted construction ensuring reliable operation in high humidity up to 100% condensing environments.

        For diagnostic verification applications, the 990-10-50-03-00 provides a Test Input pin for quick verification of loop signal output using a function generator as the input. In addition to standard continuous vibration transmission, the transmitter also performs active fault monitoring. The 990-10-50-03-00 executes protection using the internal Not OK/Signal Defeat circuitry specified in the transmitter design. Using this method, the system continually monitors the health of the proximity probe and connection integrity. If the 990-10-50-03-00 detects that the proximity probe is no longer providing a valid signal (outside configured tolerance levels due to a faulty probe or loose connection), it will automatically defeat the output and prevent high outputs or false alarms from reaching the control system.

        The 990-10-50-03-00 Bently Nevada Vibration Transmitter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 990-10-50-03-00 Vibration Transmitter Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Bently Nevada 990-10-50-03-00 Vibration Transmitter Specs

        General

        • Manufacturer Bently Nevada
        • Model 990-10-50-03-00
        • Condition New Original ready stock
        • Product Family 990-10-50-03-01,990-10-50-03-05
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Centrifugal Air Compressors: Used by OEMs for tight-clearance radial shaft vibration monitoring.
        • General Rotating Machinery: Installed on pumps, electric motors, and cooling tower fans.
        • Corrosive Environments: Deployed in high-humidity applications up to 100% condensing humidity.
        • Automated Asset Trending: Replaces manual route walkdowns with continuous loop telemetry.
        • Direct DCS/PLC Interface: Outputs an industry-standard 4–20 mA proportional current loop signal.
        • Host-Level Alarm Logic: Machine trip and alert programming occur inside the controller.
        • Signal Defeat Circuit: Drops the loop current below 4 mA if probes fail, preventing false trips.
        • Dynamic Waveform Diagnostics: Features a PROX OUT BNC port for external oscilloscope analysis.
        • Zero Digital Software: This transmitter uses analog hardware components instead of digital software.
        • Physical Probe Gapping: Requires setting a 3300 NSv probe mechanical gap between 20 and 55 mils.
        • Zero & Span Potentiometers: Uses manual faceplate screws to calibrate the 4 and 20 mA loop boundaries.
        • Test Input Validation: Accepts external signal generator inputs to simulate machine vibration loops.
        Description
        The 990-10-50-03-00 is a Bently Nevada vibration transmitter designed primarily for original equipment manufacturers (OEMs) of centrifugal air compressors or small pumps, motors, or fans who prefer to provide a simple 4 to 20 mA proportional vibration signal as the input to their machinery control system. This 990-10-50-03-00 transmitter is a two-wire, loop-powered device that accepts input from the 3300 NSv proximity probe and its matching extension cable, with the 990-10-50-03-00 supporting system length options of 5.0 meters (16.4 feet). The 990-10-50-03-00 conditions the signal into appropriate peak-to-peak vibration amplitude engineering units, and provides this value as a proportional 4 to 20 mA industry-standard signal as the input to the control system where machinery protection alarming and logic occurs.

        The 990-10-50-03-00 provides several notable features that enhance its operational reliability and ease of use. The 990-10-50-03-00 includes an integrated Proximitor Sensor that requires no external unit, and offers non-isolated PROX OUT and COM terminals plus a coaxial connector to provide a dynamic vibration and gap voltage signal output for diagnostics. The 990-10-50-03-00 also features non-interacting zero and span potentiometers under the transmitter label to support loop adjustment, along with a Test Input pin for quick verification of loop signal output using a function generator as the input. Additionally, the 990-10-50-03-00 incorporates a Not OK/Signal Defeat circuit that prevents high outputs or false alarms due to a faulty proximity probe or loose connection.

        This 990-10-50-03-00 vibration transmitter is specifically designed for handling machinery vibration monitoring in compact equipment environments. The 990-10-50-03-00 solves the challenge of integrating vibration monitoring into OEM machinery control systems without requiring complex external sensor conditioning units. The 990-10-50-03-00 is widely applied in the industrial automation sector, particularly for centrifugal air compressors, small pumps, motors, and fans where space is limited and a simple 4-20 mA signal interface is preferred.
        Alternative Names
        990 10 50 03 00 990-10-50-03-01 990-10-50-03-05 990-10-50-01-00 990-10-50-02-00
        Technical notes
        The Bently Nevada 990-10-50-03-00 Vibration Transmitter is engineered primarily for original equipment manufacturers (OEMs) and operators handling critical rotating assets with confined spaces, directly solving the problem of monitoring vibration where traditional, bulky sensors cannot fit.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        How does the 990-10-50-03-00 improve machinery monitoring?
        The transmitter converts dynamic vibration signals into an industry-standard 4 to 20 mA output, enabling direct integration with control systems, PLCs, DCS platforms, and machinery protection systems for alarming and condition monitoring.
        In which industries is the 990-10-50-03-00 commonly used?
        The 990-10-50-03-00 is widely used in facilities operating centrifugal air compressors, pumps, motors, and industrial fans. It is commonly applied in power generation, oil and gas, chemical processing, and general industrial manufacturing environments.
        Why is the 3300 NSv probe compatibility important for the 990-10-50-03-00?
        Compatibility with the 3300 NSv proximity probe allows the transmitter to operate effectively in installations with limited physical clearance while maintaining accurate vibration measurement and reliable signal conditioning.
        How does the 990-10-50-03-00 perform in harsh environments?
        The transmitter features a fully potted construction that allows reliable operation in harsh industrial environments with up to 100% condensing humidity, reducing the risk of signal instability caused by moisture exposure.

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