{"product_id":"bently-nevada-990-04-50-03-00-2-wire-vibration-transmitter","title":"Bently Nevada 990-04-50-03-00 2-Wire Vibration Transmitter","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e990-04-50-03-00\u003c\/strong\u003e is a compact vibration transmitter used for integrating shaft vibration measurement into control systems without requiring a full monitoring rack. It is designed around a 2-wire loop-powered architecture and converts proximity probe displacement signals into a stable 4 to 20 mA output for PLC or DCS use.\u003c\/p\u003e\n\u003cp\u003eIn practical OEM installations, this model is often selected when engineers want a balance between wiring simplicity and mechanical flexibility. The 5.0 metre system length fits most skid-mounted rotating equipment layouts where probe routing distance is moderate but still needs stable signal integrity.\u003c\/p\u003e\n\u003cp\u003eThis configuration uses a combined DIN clip and screw mounting method, which gives technicians flexibility during panel layout. In many real-world builds, this hybrid mounting style is preferred because it allows both quick rail installation and additional mechanical reinforcement when vibration exposure is higher than normal.\u003c\/p\u003e\n\u003cp\u003eThe transmitter is typically used in basic protection or condition trending loops, where the goal is to detect changes in machine behavior early rather than perform deep diagnostic analysis.\u003c\/p\u003e\n\u003ch3\u003eFunctional Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConverts proximity probe signal into 4 to 20 mA output\u003c\/li\u003e\n\u003cli\u003eDesigned for continuous vibration trending applications\u003c\/li\u003e\n\u003cli\u003eSupports 3300 NSv proximity probe systems\u003c\/li\u003e\n\u003cli\u003eLoop-powered 2-wire operation simplifies wiring design\u003c\/li\u003e\n\u003cli\u003eHybrid DIN rail + screw mounting for flexible installation\u003c\/li\u003e\n\u003cli\u003eIntegrated signal conditioning electronics\u003c\/li\u003e\n\u003cli\u003eProvides access to raw vibration via PROX OUT\u003c\/li\u003e\n\u003cli\u003eExternal calibration adjustment (zero\/span)\u003c\/li\u003e\n\u003cli\u003eFault detection with output drop indication\u003c\/li\u003e\n\u003cli\u003eCompact encapsulated industrial housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere Engineers Typically Use It\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eEquipment Context\u003c\/th\u003e\n\u003cth\u003eWhy It Is Used\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor skids\u003c\/td\u003e\n\u003ctd\u003eStable shaft vibration monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndustrial pumps\u003c\/td\u003e\n\u003ctd\u003eEarly detection of imbalance or wear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFan systems\u003c\/td\u003e\n\u003ctd\u003eContinuous condition tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOEM packaged machines\u003c\/td\u003e\n\u003ctd\u003eEmbedded vibration feedback loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary rotating equipment\u003c\/td\u003e\n\u003ctd\u003eBasic protection input to PLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetrofit panels\u003c\/td\u003e\n\u003ctd\u003eEasy integration into existing cabinets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eOrdering Breakdown\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eElement\u003c\/th\u003e\n\u003cth\u003eCode Meaning\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\u003e-04 = 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\u003e-50 = 5.0 metres (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Option\u003c\/td\u003e\n\u003ctd\u003e-03 = DIN clips and screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Approval Option\u003c\/td\u003e\n\u003ctd\u003e-00 = 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; Dimensional 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\u003eValue\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\u003e990-04-50-03-00\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\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew \u0026amp; Original in Factory Packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFactory Warranty\u003c\/td\u003e\n\u003ctd\u003e12 Months\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 (no 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\u003eNet 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\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-20 mA Output\u003c\/td\u003e\n\u003ctd\u003eVibration signal to control system\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 signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOM\u003c\/td\u003e\n\u003ctd\u003eElectrical 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 Experience Perspective)\u003c\/h3\u003e\n\u003cp\u003eIn cabinet installations, this model is usually mounted on DIN rail first, then mechanically secured with screws when vibration or cable tension is expected. This reduces long-term loosening in high-vibration environments such as compressor enclosures.\u003c\/p\u003e\n\u003cp\u003eProbe cable routing is important on this model. Engineers typically keep low-level signal cables separated from motor power lines to avoid noise coupling, especially in 5-metre routing layouts where bundling is common.\u003c\/p\u003e\n\u003cp\u003eDuring commissioning, the probe gap should be checked before energizing the loop. Once powered, allow the signal to stabilize under steady machine conditions before integrating it into alarm logic.\u003c\/p\u003e\n\u003cp\u003eThe PROX OUT point is useful during troubleshooting, but in practice it is often used only during startup or maintenance windows rather than continuous operation.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this transmitter suitable for compact machinery skids?\u003c\/strong\u003e\u003cbr\u003eYes, it is commonly selected for OEM skid-mounted rotating equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the main advantage of the 5.0 m system length?\u003c\/strong\u003e\u003cbr\u003eIt matches most medium-distance probe routing layouts without signal complexity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be installed only on DIN rail?\u003c\/strong\u003e\u003cbr\u003eIt supports DIN rail installation but also allows screw reinforcement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it provide raw vibration access?\u003c\/strong\u003e\u003cbr\u003eYes, PROX OUT provides a diagnostic signal for external instruments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of control system is it designed for?\u003c\/strong\u003e\u003cbr\u003eIt is intended for PLC and DCS analog input integration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a diagnostic system or a transmitter?\u003c\/strong\u003e\u003cbr\u003eIt is a simplified transmitter, not a full vibration analysis system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the probe fails?\u003c\/strong\u003e\u003cbr\u003eThe output drops to a low-current fault state to indicate NOT OK.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for compressors and pumps?\u003c\/strong\u003e\u003cbr\u003eYes, it is widely used on compressors, pumps, and fans.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat makes this version different in installation?\u003c\/strong\u003e\u003cbr\u003eIt uses a combined DIN clip and screw mounting arrangement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it used for detailed vibration diagnostics?\u003c\/strong\u003e\u003cbr\u003eNo, it is intended for trend-level monitoring only.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666613432683,"sku":"990-04-50-03-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-990-04-50-03-00-990-vibration-transmitter-3phzlju5ibc_8ef2edb9-f39d-43ca-9b7b-48c54e693a39.jpg?v=1765444172","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-990-04-50-03-00-2-wire-vibration-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}