{"product_id":"bently-nevada-990-04-50-02-00-2-wire-vibration-transmitter","title":"Bently Nevada 990-04-50-02-00 Émetteur de vibration 2 fils","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e990-04-50-02-00\u003c\/strong\u003e is a compact loop-powered vibration transmitter used to convert proximity probe displacement into a standard 4 to 20 mA signal for industrial monitoring systems. It is designed for applications where vibration data is required for continuous trend observation and basic protection logic rather than full waveform diagnostics.\u003c\/p\u003e\n\u003cp\u003eThis version uses a \u003cstrong\u003ebulkhead screw mounting arrangement\u003c\/strong\u003e, which is often preferred in control panel designs where direct enclosure mounting is required. In practice, engineers choose this type when they want a rigid installation point that reduces mechanical movement and simplifies wiring routing inside tight cabinets.\u003c\/p\u003e\n\u003cp\u003eThe device operates with a 3300 NSv proximity probe system and supports a 5.0 meter system length. This configuration is commonly applied in compressor packages, pump systems, and fan assemblies where probe installation distance is moderate and routing is straightforward.\u003c\/p\u003e\n\u003cp\u003eThe design focus is operational simplicity: once installed and commissioned, it typically runs continuously with minimal adjustment.\u003c\/p\u003e\n\u003ch3\u003eEngineering Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2-wire loop-powered vibration transmitter architecture\u003c\/li\u003e\n\u003cli\u003eConverts proximity probe signal into 4–20 mA output\u003c\/li\u003e\n\u003cli\u003eDesigned for 3300 NSv probe compatibility\u003c\/li\u003e\n\u003cli\u003eBulkhead screw mounting with 4-point fixation\u003c\/li\u003e\n\u003cli\u003eSupplied with 6-32 x 1.326 mounting screws when specified\u003c\/li\u003e\n\u003cli\u003eIntegrated signal conditioning electronics\u003c\/li\u003e\n\u003cli\u003eStable output for continuous vibration trending\u003c\/li\u003e\n\u003cli\u003eExternal zero\/span adjustment capability\u003c\/li\u003e\n\u003cli\u003ePROX OUT available for diagnostic signal access\u003c\/li\u003e\n\u003cli\u003eFault indication via output current drop behavior\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Perspective\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEquipment Type\u003c\/th\u003e\n\u003cth\u003eTypical Use\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCentrifugal compressors\u003c\/td\u003e\n\u003ctd\u003eShaft vibration trending into PLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial pumps\u003c\/td\u003e\n\u003ctd\u003eBearing condition monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling fans\u003c\/td\u003e\n\u003ctd\u003eMechanical imbalance detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM skid systems\u003c\/td\u003e\n\u003ctd\u003eEmbedded vibration input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary rotating machinery\u003c\/td\u003e\n\u003ctd\u003eAlarm and shutdown logic input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcess support equipment\u003c\/td\u003e\n\u003ctd\u003eContinuous condition tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eOrdering Structure\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSegment\u003c\/th\u003e\n\u003cth\u003eCode Description\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 Vibration Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd\u003e04 = 0–4 mils pp (0–100 µm pp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length Option\u003c\/td\u003e\n\u003ctd\u003e50 = 5.0 meters (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Option\u003c\/td\u003e\n\u003ctd\u003e02 = Bulkhead screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Option\u003c\/td\u003e\n\u003ctd\u003e00 = Not required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eMechanical \u0026amp; Installation Data\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e990-04-50-02-00\u003c\/td\u003e\n\u003c\/tr\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\u003eMinimum Target Size\u003c\/td\u003e\n\u003ctd\u003e9.5 mm (0.375 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (H x W x D)\u003c\/td\u003e\n\u003ctd\u003e53.3 mm x 73.9 mm x 100.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Height (without DIN clip)\u003c\/td\u003e\n\u003ctd\u003e42.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hole Distance\u003c\/td\u003e\n\u003ctd\u003e63.5 mm x 69.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hole Diameter\u003c\/td\u003e\n\u003ctd\u003e5.8 mm\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\u003eMounting Hardware\u003c\/td\u003e\n\u003ctd\u003e4 × bulkhead holes, 6-32 x 1.326 screws provided\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInterface Overview\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface\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\u003eProbe Input\u003c\/td\u003e\n\u003ctd\u003eConnection to 3300 NSv proximity probe system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4–20 mA Output\u003c\/td\u003e\n\u003ctd\u003eVibration signal to PLC\/DCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003eLoop-powered DC supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePROX OUT\u003c\/td\u003e\n\u003ctd\u003eRaw vibration diagnostic output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM\u003c\/td\u003e\n\u003ctd\u003eSignal reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Notes (Field Engineering View)\u003c\/h3\u003e\n\u003cp\u003eBulkhead mounting is typically selected when the panel layout requires a fixed and mechanically stable installation point. The four-point fixation reduces vibration-induced loosening, which can be a concern in compressor or pump skid environments.\u003c\/p\u003e\n\u003cp\u003eIn practical wiring design, probe signal routing should be separated from high-voltage or high-current conductors. This helps avoid induced noise, especially when cable runs are bundled inside compact enclosures.\u003c\/p\u003e\n\u003cp\u003eBefore commissioning, verify probe gap alignment and confirm loop current stability under steady machine operation. Engineers usually delay alarm logic activation until the signal behavior is confirmed under real operating conditions.\u003c\/p\u003e\n\u003cp\u003ePROX OUT is mainly used during maintenance or diagnostic checks rather than continuous monitoring in production.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is bulkhead mounting used in this model?\u003c\/strong\u003e\u003cbr\u003eIt provides a rigid enclosure-mounted installation with better mechanical stability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre mounting screws included?\u003c\/strong\u003e\u003cbr\u003eYes, 6-32 x 1.326 screws are provided when the mounting option is specified.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the main function of this transmitter?\u003c\/strong\u003e\u003cbr\u003eIt converts vibration from a proximity probe into a 4–20 mA signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used with PLC systems?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for direct PLC and DCS analog input integration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat probe system is required?\u003c\/strong\u003e\u003cbr\u003eIt is designed for Bently Nevada 3300 NSv proximity probes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this suitable for compressor applications?\u003c\/strong\u003e\u003cbr\u003eYes, it is commonly used on compressors, pumps, and fans.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it support vibration diagnostics?\u003c\/strong\u003e\u003cbr\u003eIt provides PROX OUT for basic diagnostic signal access.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it a full monitoring system?\u003c\/strong\u003e\u003cbr\u003eNo, it is a simplified vibration transmitter for trend-level monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the probe fails?\u003c\/strong\u003e\u003cbr\u003eThe output current drops to indicate a fault condition.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere is it typically installed?\u003c\/strong\u003e\u003cbr\u003eInside control cabinets or skid-mounted equipment panels.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666852933995,"sku":"990-04-50-02-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-990-04-50-02-00-vibration-transmitter-ghs0ash3mzd_bf0dfbdc-8417-4406-82f9-2a26d0af0b40.jpg?v=1765449099","url":"https:\/\/www.plcprotech.com\/fr\/products\/bently-nevada-990-04-50-02-00-2-wire-vibration-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}