{"product_id":"bently-nevada-990-05-70-01-01-990-vibration-transmitter","title":"Bently Nevada 990-05-70-01-01 990 Vibration Transmitter","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 990-05-70-01-01\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e990\u003c\/strong\u003e Vibration Transmitter, operates as a dedicated hardware component for continuous proximity probe signal conditioning and 4-20 mA loop-powered vibration monitoring within machinery protection networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e990-05-70-01-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eVibration Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e3300 NSv Proximity Probe input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC (proportional to vibration amplitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e2-wire loop powered (12-30 VDC nominal loop voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eIntegrated DIN-rail clips or bulkhead mounting screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eFully potted enclosure (up to 100% condensing humidity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e76 x 102 x 51 mm (3.0 x 4.0 x 2.0 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg (1 lbs 3.0 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLoop-powered, 4-20 mA current loop dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEddy-Current Probe Scaling \u0026amp; Gap Voltage Validation (-10 VDC Targets)\u003c\/h3\u003e\n\u003cp\u003eThe transmitter processes raw high-frequency RF signals from a 3300 NSv eddy-current proximity probe, converting dynamic shaft displacement into a linearized 4-20 mA DC current loop output. Field installation requires gap voltage validation to ensure the probe tip operates within its linear range, typically targeting -10 VDC at physical mid-span before securing probe locknuts. Precision eddy-current probe scaling ensures accurate peak-to-peak vibration amplitude reporting to plant DCS and PLC instrumentation without phase distortion.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is the transmitter powered and integrated into process control systems?\u003c\/p\u003e\n\u003cp\u003eA: The module features a 2-wire loop-powered configuration that draws operating current directly from the standard 4-20 mA measurement loop, eliminating the need for dedicated local AC or DC power wiring.\u003c\/p\u003e\n\u003cp\u003eQ: What input transducer type is required for accurate signal conversion?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter accepts high-frequency proximity input specifically tuned to Bently Nevada 3300 NSv series eddy-current proximity probes.\u003c\/p\u003e\n\u003cp\u003eQ: What mechanical protection does the enclosure provide against environmental moisture?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter utilizes a fully potted housing design that prevents ingress of moisture and corrosive vapors, allowing continuous operation in up to 100% condensing humidity environments.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the transmitter housing directly to a standard DIN rail using the integrated retention clips or fasten to a rigid panel surface via bulkhead mounting screws.\u003c\/li\u003e\n\u003cli\u003eConnect the 3300 NSv proximity probe extension cable to the dedicated transmitter input connector, ensuring finger-tight coupling without twisting the coaxial core.\u003c\/li\u003e\n\u003cli\u003eVerify the static DC gap voltage across the raw probe test terminals, adjusting probe depth until reaching the designated -10 VDC nominal bias point.\u003c\/li\u003e\n\u003cli\u003eWire the 4-20 mA current loop output terminals using twisted, shielded pair cable (18 to 22 AWG) to prevent electromagnetic interference.\u003c\/li\u003e\n\u003cli\u003eGround the cable shield at a single termination point at the control system rack ground bus bar to eliminate ground loop noise.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43824922656858,"sku":"990-05-70-01-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/990-05-70-01-011.png?v=1786433915","url":"https:\/\/www.spareoil.com\/products\/bently-nevada-990-05-70-01-01-990-vibration-transmitter","provider":"SpareOil Automation","version":"1.0","type":"link"}