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        • Lifecycle status

          Discontinued / Obsolete by OEM
          Apter Power provides advanced, RF-validated legacy eddy-current hardware to sustain precise rotor-dynamic alignment meshes, successfully preventing erroneous trip commands and sensory-loop interruptions caused by legacy oscillator impedance drift.

        990-05-70-01-06

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        1001 reviews ｜ Need a Specific Revision?
        The Bently Nevada 990-05-70-01-06 is a loop-powered vibration transmitter engineered to deliver seamless 4-20mA machinery condition monitoring directly to PLC, DCS, or SCADA systems.
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        Ships by Wednesday, October 28
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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 990-05-70-01-06

        • Manufacturer:
          Bently Nevada
        • Part Number:
          990-05-70-01-06
        • Product Family:
          990 Vibration Transmitter
        • Stock:
          1
        • Full-scale:
          0-5 mils pp (0-125 μm pp)
        • System Length:
          7.0 meters (23.0 feet)
        • Mounting:
          35 mm DIN rail clips
        • Full-Scale Target Range:
          0 to 5 mils peak-to-peak (0 to 125 µm pp) linear vibration
        • Total Calibrated System Length:
          7.0 meters (23.0 feet) configured probe + cable impedance
        • Mechanical Mounting Architecture:
          Factory-installed 35 mm standard DIN rail clips
        • Hazardous Area Certification:
          ATEX / IECEx / Zone 2 / Class I Division 2 Non-Incendive
        • Primary Analog Signal Output:
          2-wire, loop-powered 4 to 20 mAdc proportional to vibration
        • Dynamic Diagnostic Port:
          Non-isolated coaxial BNC terminal
        • Prox-Out Scale Factor Precision:
          7.87 mV/µm (200 mV/mil) with a typical variance of ±6.5%
        • Weight:
          0.45 kg
        • Estimated shipping dimensions:
          10x7.4x6cm
        • 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 Manuals Applications Monitoring & Control Safety & Compliance

        Features:

        • Loop-Powered Direct Control System Integration
        • Intelligent Not OK Fault Protection and Startup Inhibit
        • Dual-Purpose Continuous Trending and Dynamic Analysis Interface
        The Bently Nevada 990-05-70-01-06 outputs a standalone, industrial-standard 4-20mA proportional loop signal, enabling direct injection of continuous dynamic vibration data straight into DCS or PLC input modules without requiring specialized rack-mounted monitoring monitors.

        To prevent false plant trips during critical operations, the Bently Nevada 990-05-70-01-06 incorporates an ultra-fast fault-sensing circuit that drops the loop current below 3.6 mA within 100 microseconds of a probe failure, alongside a 2-second power-up transient suppression system.

        Equipped with a rugged front-panel BNC diagnostic port, the Bently Nevada 990-05-70-01-06 allows reliability engineers to tap directly into raw, unconditioned eddy-current voltage data using portable oscilloscopes or machinery analyzers without disrupting the main 4-20mA monitoring loop.

        The 990-05-70-01-06 Bently Nevada 2-Wire Vibration Transmitter may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
        Bently Nevada 990-05-70-01-06 2-Wire 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 990-05-70-01-06 2-Wire Vibration Transmitter

        General

        • Manufacturer GE / Bently Nevada
        • Model 990-05-70-01-06
        • Condition New Original ready stock
        • Product Family 990-05-70-02-00,990-05-70-02-05,990-05-70-02-01
        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 Compressor Protection: The Bently Nevada 990-05-70-01-06 provides precise radial vibration trending for narrow-clearance fluid-film bearings, detecting shaft instabilities before catastrophic oil-whip failures occur.
        • Industrial Cooling Tower Fan Monitoring: Perfect for remote, damp, and inaccessible geographic points, the unit accurately measures unbalance or aerodynamic blade stresses in multi-stage fan systems.
        • High-Speed Boiler Feed Pumps: It effectively captures high-frequency shaft dynamics and structural resonance spikes caused by hydraulic turbulence or misalignment on critical thermal power infrastructure.
        • Small Steam and Gas Auxiliary Turbines: The Bently Nevada 990-05-70-01-06 acts as a dependable standalone safety barrier for auxiliary machinery, delivering robust, low-maintenance trending on critical utility assets.
        • DCS-Level Predictive Analytics: By delivering continuous linear 4-20mA currents, the unit allows direct programming of early-warning alert thresholds right within plant SCADA mathematical logic blocks.
        • Dynamic Troubleshooting Access: The raw unisolated coaxial output lets engineers run advanced orbit plots, shaft centerline analysis, and cascade spectrum tracking via portable diagnostics tools during live machinery operation.
        • Startup Transient Current Supression: Features an integrated internal inhibit block that clamps output below 3.6 mA during the first 3 seconds of power-up, avoiding nuisance alarms from voltage stabilization spikes.
        • Signal Line Impedance Management: Designed with an optimized drive capability, the transmitter safely supports up to 1,000 ohms of loop resistance at 35 Vdc, facilitating long-distance cable runs back to control rooms.
        • ATEX / IECEx Zone 2 Certified Security: The unit complies with international explosion-proof guidelines, guaranteeing spark-free non-incendive operation inside Zone 2 hazardous areas without expensive explosion-proof enclosures.
        • Strict Electromagnetic Compatibility: Fully compliant with EN 61326-1 and CE directives, ensuring the transmitter rejects high-frequency industrial radio interference and switching noise from nearby VFDs.
        • Robust Fail-Safe Integrity: The ultra-fast < 3.6 mA system clamping feature instantly signals the host controller during physical cable breaks or probe short circuits, isolating hardware errors from real machinery trips.
        • Full Corrosive Ingress Protection: Its dense, fully potted structural housing block seals out 100% condensing humidity and chemical vapors, complying with demanding offshore and petrochemical plant physical standards.
        Description
        The Bently Nevada 990-05-70-01-06 integrates the core signal conditioning capabilities of a Proximitor sensor into a compact, robust transmitter housing, radically simplifying your field deployment footprint. Specially calibrated for the 3300 NSv proximity probe system, it converts raw micro-gap physical eddy-current changes into a highly linear, industry-standard proportional current output. This allows industrial operators to cost-effectively scale up their predictive maintenance strategies across critical auxiliary assets without sacrificing signal integrity or data frequency response.

        Engineered specifically to target the vulnerabilities of rotating machinery under harsh process demands, the Bently Nevada 990-05-70-01-06 offers an elegant standalone monitoring path. It interfaces directly with process control loops while maintaining a high-impedance dynamic diagnostic port on the front panel, satisfying both the operations department's continuous trending needs and the machinery engineer’s advanced wave-form analysis requirements. This hybrid capability dramatically lowers the total cost of ownership by eliminating specialized local display hardware while keeping critical maintenance insights fully accessible.

        The hardware topography of the Bently Nevada 990-05-70-01-06 represents the pinnacle of field-reliability standards for high-vibration and aggressive chemical atmospheres. Featuring an internal solid-state potted construction, it isolates delicate digital-analog hybrid circuitry from corrosive gases and moisture ingress, making it the perfect upgrade path for older legacy monitoring systems. Its native 35 mm DIN rail clips mounting architecture allows international panel builders to achieve effortless modular density inside high-density Marshalling cabinets.
        Alternative Names
        990 05 70 01 06 990-05-70-01-00 990-05-70-01-01 990-05-70-01-05 990-05-70-02-01 990-05-70-02-00 990-05-70-02-00 990-05-70-01-CN
        Technical notes
        The Bently Nevada 990-05-70-01-06 requires a stabilized external loop power supply between +12 and +35 Vdc at its terminal block to guarantee its rated output precision across its complete frequency window. Field technicians must ensure that when deploying the Bently Nevada 990-05-70-01-06, the total interconnected system length (combining probe and extension cable) equals exactly 7.0 meters to maintain strict adherence to the calibrated 7.87 mV/µm (200 mV/mil) prox-out scale factor.
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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 will happen to the output signal if the Bently Nevada 990-05-70-01-06 detects a physical break in the proximity probe extension cable?
        The Bently Nevada 990-05-70-01-06 features an onboard automatic "Not OK" self-diagnostic circuit. Within 100 microseconds of a field cable disconnect, probe short circuit, or open loop error, the Bently Nevada 990-05-70-01-06 clamps its loop current output down below 3.6 mA. This distinct out-of-bounds low signal tells your PLC/DCS software that a hardware sensor fault has occurred, allowing the system to inhibit a machine shutdown trip and log a sensor maintenance alert.
        Can I connect a standard 5.0-meter 3300 NSv probe directly to the Bently Nevada 990-05-70-01-06 without using an extension cable?
        No, the Bently Nevada 990-05-70-01-06 is specifically engineered and factory-calibrated for an exact 7.0-meter system length option. Connecting a 5.0-meter probe directly will cause severe electrical impedance mismatching, leading to incorrect prox-out scale factors and heavily distorted 4-20mA readings. To ensure precise accuracy, the Bently Nevada 990-05-70-01-06 must always be connected to a combined probe-and-cable system that equals exactly 7.0 meters.
        Does the dynamic BNC "PROX OUT" port on the Bently Nevada 990-05-70-01-06 require external isolation or special safety barriers during data collection?
        The BNC diagnostic port on the Bently Nevada 990-05-70-01-06 is non-isolated from the internal transmitter circuitry, meaning it shares an electrical common ground. However, it is fully buffered and short-circuit protected. You can safely connect portable dynamic analyzers directly to the Bently Nevada 990-05-70-01-06 while it is operating without affecting the primary 4-20mA trending loop, provided your test equipment does not introduce external grounding conflicts into the system loop.
        Can the Bently Nevada 990-05-70-01-06 housing block be mounted directly on a machine casing subject to extreme structural vibrations?
        While the Bently Nevada 990-05-70-01-06 is fully potted to resist mechanical shocks, mounting it directly on a high-vibration machine casing can cause fatigue on the 35 mm DIN rail clips or wire terminations over time. The best practice is to install the Bently Nevada 990-05-70-01-06 inside a rugged, field-mounted junction box located on a nearby structural column or low-vibration platform to ensure long-term mechanical reliability.
        What is the recommended upgrade or replacement pathway if my plant's existing Bently Nevada 990-05-70-01-06 becomes obsolete or requires a higher scale range?
        The Bently Nevada 990-05-70-01-06 belongs to a highly standardized, long-lifecycle product family. If you need to increase your measurement scale from 5 mils to 10 mils, you will need to replace it with the 990-10 option variant. Because the Bently Nevada 990-05-70-01-06 shares identical physical dimensions and 35 mm DIN rail clips layout with all other 990 series transmitters, switching units requires zero mechanical modifications to your existing cabinet layouts.

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