{"product_id":"990-05-50-01-cn-bently-nevada-990-vibration-transmitter","title":"990-05-50-01-CN | Bently Nevada | 990 Vibration Transmitter","description":"\u003ch4\u003eDescription\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e990 Vibration Transmitter\u003c\/strong\u003e is a loop-powered, two-wire vibration measurement device designed for direct integration with machinery protection or condition monitoring systems in rotating equipment applications such as compressors, pumps, motors, and fans. It converts radial vibration sensed by a \u003cstrong\u003e3300 NSv proximity probe system\u003c\/strong\u003e into a proportional \u003cstrong\u003e4–20 mA signal representing peak-to-peak vibration amplitude\u003c\/strong\u003e, enabling continuous monitoring at the control system level.\u003c\/p\u003e\n\u003cp\u003eThis transmitter is typically applied where simplified vibration indication is required without full diagnostic vibration analysis capability. It incorporates an internal Proximitor-style signal conditioning stage, eliminating the need for an external driver module.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e990-05-50-01-CN\u003c\/strong\u003e configuration defines a 0–5 mils peak-to-peak measurement range, a 5.0 meter system length, DIN rail mounting hardware, and region-specific approval marking for installation in regulated environments.\u003c\/p\u003e\n\u003cp\u003eA secondary diagnostic output is available via PROX OUT interface, allowing access to raw vibration signal for troubleshooting using compatible test equipment with proper isolation.\u003c\/p\u003e\n\u003ch4\u003eFeatures\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-wire loop powered vibration transmitter (4–20 mA output)\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003cstrong\u003e3300 NSv proximity probe system\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInternal signal conditioning (no external Proximitor required)\u003c\/li\u003e\n\u003cli\u003ePeak-to-peak vibration amplitude output\u003c\/li\u003e\n\u003cli\u003ePROX OUT diagnostic signal access available\u003c\/li\u003e\n\u003cli\u003eNon-interacting zero and span adjustment\u003c\/li\u003e\n\u003cli\u003ePower-up inhibit and NOT OK signal protection behavior\u003c\/li\u003e\n\u003cli\u003eDIN rail mounting hardware included\u003c\/li\u003e\n\u003cli\u003eBulkhead mounting alternative available (variant dependent)\u003c\/li\u003e\n\u003cli\u003ePotted housing for high humidity environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eApplications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCentrifugal air compressors\u003c\/li\u003e\n\u003cli\u003eSmall centrifugal pumps\u003c\/li\u003e\n\u003cli\u003eElectric motors\u003c\/li\u003e\n\u003cli\u003eIndustrial cooling fans\u003c\/li\u003e\n\u003cli\u003eOEM packaged rotating machinery\u003c\/li\u003e\n\u003cli\u003eAuxiliary machinery vibration trending\u003c\/li\u003e\n\u003cli\u003eBasic protection input to control systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003e2-Wire Vibration Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e990-05-50-01-CN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e3300 NSv proximity probe system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4–20 mA proportional vibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e0–5 mils pp (0–100 µm pp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e5.0 m (16.4 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop Resistance\u003c\/td\u003e\n\u003ctd\u003eUp to 1000 ohm (including cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e5 Hz to 6000 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-35 C to +85 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-52 C to +100 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e100% condensing (non-submerged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmitter Weight\u003c\/td\u003e\n\u003ctd\u003e0.43 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal System Weight\u003c\/td\u003e\n\u003ctd\u003e0.82 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003ePotted industrial enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Case Material\u003c\/td\u003e\n\u003ctd\u003eAISI 303 \/ 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProbe Cable\u003c\/td\u003e\n\u003ctd\u003e75 ohm FEP insulated coaxial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTensile Strength\u003c\/td\u003e\n\u003ctd\u003e222 N (50 lbf)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Target Size\u003c\/td\u003e\n\u003ctd\u003e9.5 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eConnections \/ Interfaces\u003c\/h4\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eConnector \/ Terminal\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePROX OUT\u003c\/td\u003e\n\u003ctd\u003eRaw vibration signal output (diagnostic use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM\u003c\/td\u003e\n\u003ctd\u003eCommon reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoop +\u003c\/td\u003e\n\u003ctd\u003e4–20 mA loop power input\/output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Input\u003c\/td\u003e\n\u003ctd\u003eSignal verification input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch4\u003eInstallation Guidelines\u003c\/h4\u003e\n\u003cp\u003eInstall the transmitter on a stable panel or DIN rail with minimal mechanical vibration influence. Maintain correct probe gap between 0.5 mm and 1.75 mm to ensure linear operation. Use shielded coaxial cable routing for probe signal integrity. Avoid running probe cables parallel to high-voltage power lines to reduce EMI coupling.\u003c\/p\u003e\n\u003cp\u003eFor PROX OUT diagnostic usage, apply proper signal isolation when connecting to grounded test instruments. Ensure enclosure sealing is maintained in high humidity environments.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eIs this transmitter suitable for vibration diagnostics?\u003c\/strong\u003e\u003cbr\u003eIt is designed for basic vibration monitoring and trending, not full diagnostic analysis.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it require an external signal conditioner?\u003c\/strong\u003e\u003cbr\u003eNo, the signal conditioning is integrated inside the transmitter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat probe type is supported?\u003c\/strong\u003e\u003cbr\u003eIt is designed for use with the 3300 NSv proximity probe system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan PROX OUT be used directly on oscilloscope?\u003c\/strong\u003e\u003cbr\u003eYes, but isolation is recommended when using grounded test equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens during probe failure?\u003c\/strong\u003e\u003cbr\u003eThe output enters NOT OK condition and drops below 3.6 mA to indicate fault.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for critical turbine monitoring?\u003c\/strong\u003e\u003cbr\u003eNo, it is intended for non-critical or auxiliary machinery applications.\u003c\/p\u003e\n\u003ch4\u003eOrdering Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel: \u003c\/strong\u003e990 - Vibration Transmitter\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-scale Option: \u003c\/strong\u003e-05 = 0–5 mils pp (0–100 µm pp)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Length Option: \u003c\/strong\u003e-50 = 5.0 meters (16.4 feet)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Option: \u003c\/strong\u003e-01 = 35 mm DIN rail clips\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAgency Approval Option: \u003c\/strong\u003e-CN = regional compliance marking option\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668314648939,"sku":"990-05-50-01-CN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/990-05-50-01-cn-513xklmghp0_d24f999d-16cd-430f-857b-2d504798ffe3.jpg?v=1765520973","url":"https:\/\/www.plcprotech.com\/products\/990-05-50-01-cn-bently-nevada-990-vibration-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}