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        • Lifecycle status

          Active / Available from OEM
          Apter Power provides certified Bently Nevada 990 transmitters to ensure accurate vibration monitoring and direct PLC loop integration in hazardous industrial environments.

        990-04-70-01-05

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        1001 reviews ｜ Need a Specific Revision?
        Bently Nevada 990-04-70-01-05 is a 4–20 mA proportional vibration transmitter with peak-to-peak measurement, DIN rail mounting, and CSA, ATEX, and ABS approvals for OEM machinery applications.
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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 990-04-70-01-05

        • Manufacturer:
          Bently Nevada
        • Part Number:
          990-04-70-01-05
        • Product Family:
          990 Vibration Transmitter
        • Product Type:
          Vibration Transmitter
        • Stock:
          1
        • Full-scale Option:
          04=0-4 mils pp (0-100 μm pp)
        • System Length Option:
          70=7.0 meters (23.0 feet)
        • Mounting Option:
          01=35 mm DIN rail clips
        • Agency Approval Option:
          05=CSA Division 2, ATEX Zone 0, ATEX Zone 2 and includes ABS maritime approval
        • Zero and span:
          Non-interacting external adjustments
        • Prox out linear range:
          1.4 mm (55 mils). Begins at approximately 0.25 mm (10 mils) from target surface
        • Storage temperature:
          -52°C to +100°C (-62°F to +212°F)
        • Weight:
          0.44 kg
        • Estimated shipping dimensions:
          10x7.3x6cm
        • 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 Compatibility & Interoperability

        Features:

        • Direct Vibration Interface Between 3300 NSv Proximity Probe and Machinery Control System
        • Combines Integrated Proximitor Sensor Capability with 4-20 mA Signal Conditioning
        • Meets Multi-Agency Certification Requirements with CSA, ATEX, and ABS Maritime Approvals
        The Bently Nevada 990-04-70-01-05 Vibration Transmitter operates as a two-wire, loop-powered device, providing a reliable 4 to 20 mA proportional output directly to control systems for machinery protection. It continuously processes raw displacement input from a 3300 NSv proximity probe and matching extension cable, converting peak-to-peak shaft vibration into a standardized current loop signal across its 0 to 4 mils peak-to-peak (0 to 100 μm peak-to-peak) full-scale range. Built for harsh operating environments, the potted enclosure handles high moisture up to 100% condensing while an integrated Not OK/Signal Defeat circuit prevents false alarm triggers caused by wiring faults or probe failures.

        The Bently Nevada 990-04-70-01-05 Vibration Transmitter provides essential vibration monitoring functions for rotating machinery, serving as a key element in the protection path by supplying accurate amplitude data for alarming and shutdown logic. The transmitter is calibrated specifically for a total system length of 7.0 meters (23.0 feet) to match the transducer assembly. Equipped with 35 mm DIN rail clips, the compact housing simplifies cabinet installation near target machinery, making it particularly well suited for OEM equipment like centrifugal air compressors, small pumps, and fans with tight spatial clearances.

        For diagnostic and field maintenance applications, the Bently Nevada 990-04-70-01-05 Vibration Transmitter provides accessible test and tuning features directly on the unit. In addition to standard loop transmission, non-interacting zero and span potentiometers beneath the front label allow precise signal adjustments without cross-talk. The transmitter incorporates a dedicated Test Input pin to verify loop output using an external function generator, alongside non-isolated PROX OUT and COM terminals plus a coaxial connector. Through these diagnostic connections, field personnel can analyze dynamic vibration waveforms and gap voltages without disrupting the primary control loop.

        The 990-04-70-01-05 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 990-04-70-01-05 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 990-04-70-01-05 Vibration Transmitter Specs

        General

        • Manufacturer Bently Nevada
        • Model 990-04-70-01-05
        • Condition New Original ready stock
        • Product Family 990-04-70-01-01,990-04-70-01-00
        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: Ideal for compact installations where space is limited around the machine housing.
        • Industrial Pumps & Fans: Provides continuous condition monitoring to detect early shaft unbalance, misalignment, or bearing wear.
        • Small Motors & Blowers: Monitors general-purpose machinery that does not justify the high cost of a continuous rack-mounted protection system.
        • Maritime & Offshore Assets: Safe for installation on ships, drilling rigs, and offshore platforms due to its ABS maritime certification.
        • Hazardous Locations: Approved for Zone 0, Zone 2, and Division 2 environments, making it suitable for chemical processing and oil and gas facilities.
        • Signal Processing: It conditions raw proximity signals into a proportional 4–20 mA current loop output, representing peak-to-peak vibration amplitude.
        • Direct Control Integration: The 4–20 mA output connects directly to control hardware, allowing users to configure safety alarms, trend data, and set up automated machine shutdown logic.
        • On-Site Diagnostics: The transmitter features non-isolated "PROX OUT" and "COM" terminals, plus a coaxial connector. This allows maintenance teams to connect portable analyzers and view dynamic vibration waveforms without disrupting the main control loop.
        • False Trip Prevention: Includes a built-in "Not OK / Signal Defeat" circuit. If a probe fails, disconnects, or short-circuits, the transmitter drops its output current below 4 mA to flag a hardware error rather than triggering a false machine trip.
        • Sensor & Cable Matching: This specific model must be paired exclusively with a Bently Nevada 3300 NSv proximity probe and its matching extension cable.
        • System Length Tuning: The "70" option requires the total combined length of the probe and extension cable to equal exactly 7.0 meters to maintain calibrated measurement accuracy.
        • Automation System Interoperability: The linear 4–20 mA output ensures seamless communication with a wide variety of process control platforms.
        • Power Requirements: It operates reliably on standard industrial loop power, accepting a wide voltage range of +12 to +35 Vdc.
        Description
        The Bently Nevada 990-04-70-01-05 Vibration Transmitter is designed for original equipment manufacturers (OEMs) of centrifugal air compressors, small pumps, motors, or fans who require a simple and reliable 4–20 mA vibration signal input for their machinery control systems. It converts vibration motion into a proportional peak-to-peak engineering unit signal, making it easy to integrate with existing control and protection logic.

        This 990-04-70-01-05 transmitter offers a full-scale range of 0–4 mils peak-to-peak (0–100 μm), with a linear prox output range of 1.4 mm (55 mils) beginning approximately 0.25 mm (10 mils) from the target surface. Zero and span adjustments are non-interacting and externally accessible, allowing precise calibration in the field without disturbing other system parameters.

        The 990 model features a system length of 7.0 meters (23.0 feet) and is equipped with 35 mm DIN rail mounting clips for straightforward installation. It also includes non-isolated PROX OUT and COM terminals, along with a coaxial connector for dynamic vibration and gap voltage signal output, enabling detailed diagnostics in addition to standard 4–20 mA output.

        Engineered for harsh industrial environments, this transmitter supports a wide storage temperature range from -52°C to +100°C (-62°F to +212°F). It comes with multiple agency approvals including CSA Division 2, ATEX Zone 0 and Zone 2, as well as ABS maritime certification, ensuring compliance and reliability across global applications.
        Alternative Names
        990 04 70 01 05 990-04-70-01-00 990-04-70-01-01 990-04-70-00-05 990-04-70-02-05 990-04-50-01-05 990-05-70-01-05
        Technical notes
        The Bently Nevada 990-04-70-01-05 is a loop-powered transmitter that converts proximity probe signals into a 4-20 mA output. It features a 0-4 mils pp (0-100 μm pp) range and supports a 7.0-meter (23.0-foot) system length.
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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
        What problem does the Bently Nevada 990-04-70-01-05 solve?
        It prevents unexpected machinery failure from shaft imbalance or misalignment by providing early vibration warnings. It eliminates the need for costly separate monitor modules, making continuous asset protection highly affordable.
        Where is the Bently Nevada 990-04-70-01-05 applied?
        It is used on pumps, motors, and fans in the oil, gas, power, and chemical sectors. Holding CSA, ATEX Zone 0/2, and ABS maritime approvals, the Bently Nevada 990-04-70-01-05 safely handles volatile offshore and marine environments.
        How is the Bently Nevada 990-04-70-01-05 installed and integrated?
        It mounts quickly inside cabinets using integrated 35 mm DIN rail clips. The transmitter integrates directly into standard industrial PLC or DCS architectures via its 4-20 mA loop connection.

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