{"product_id":"bently-nevada-990-05-70-02-00-vibration-transmitter","title":"Transmetteur de vibration Bently Nevada 990-05-70-02-00","description":"\n\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 990-05-70-02-00\u003c\/strong\u003e is a two-wire, loop-powered \u003cstrong\u003e990 Vibration Transmitter\u003c\/strong\u003e designed to process signals from proximity probes into a proportional 4 to 20 mA industry-standard current loop. The device directly interfaces with a \u003cstrong\u003e3300 NSv proximity probe\u003c\/strong\u003e and its matching extension cable to monitor peak-to-peak vibration amplitude. This transmitter provides an engineered solution for machinery control systems where local control-level protection alarming and logic are required. It operates as an integrated Proximitor Sensor unit, optimizing signal processing for compact industrial equipment.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Proximitor Sensor requires no external driver unit.\u003c\/li\u003e\n\u003cli\u003eNon-isolated PROX OUT and COM terminals plus a coaxial connector deliver dynamic vibration and gap voltage signals.\u003c\/li\u003e\n\u003cli\u003eNon-interacting zero and span potentiometers enable straightforward calibration and loop adjustment.\u003c\/li\u003e\n\u003cli\u003eTest Input pin permits direct verification of the loop output using an external function generator.\u003c\/li\u003e\n\u003cli\u003eNot OK\/Signal Defeat circuit quickly drops output below 3.6 mA to suppress false alarms during probe faults.\u003c\/li\u003e\n\u003cli\u003ePotted construction provides robust environmental protection for high-humidity installations.\u003c\/li\u003e\n\u003cli\u003eCompact design supports installation in confined spaces with minimal clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCentrifugal air compressors\u003c\/li\u003e\n\u003cli\u003eSmall pumps and fluid machinery\u003c\/li\u003e\n\u003cli\u003eIndustrial electric motors\u003c\/li\u003e\n\u003cli\u003eCooling and ventilation fans\u003c\/li\u003e\n\u003cli\u003eOEM machinery control system integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eSuffix Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption Type\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eField Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e990\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003e990 Vibration Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-05\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA: Full-scale Option\u003c\/td\u003e\n\u003ctd\u003e0-5 mils pp (0-125 um pp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-70\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB: System Length Option\u003c\/td\u003e\n\u003ctd\u003e7.0 meters (23.0 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC: Mounting Option\u003c\/td\u003e\n\u003ctd\u003eBulkhead screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eD: Agency Approval Option\u003c\/td\u003e\n\u003ctd\u003eNot required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/th\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\u003e\u003cstrong\u003eIdentity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e990-05-70-02-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e1 non-contacting 3300 NSv Proximity Probe and extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003ePower Requirements\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc input at the transmitter terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eSignal Output\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mAdc over specified full-scale range (2-wire configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA Loop Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin +\/-1.5% over specified full-scale range across 250 Ohm resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eMaximum Loop Resistance\u003c\/td\u003e\n\u003ctd\u003e1,000 Ohm including cable at 35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eCurrent Limiting\u003c\/td\u003e\n\u003ctd\u003e23 mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eZero and Span\u003c\/td\u003e\n\u003ctd\u003eNon-interacting external adjustments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eNOT OK\/Signal Defeat\u003c\/td\u003e\n\u003ctd\u003eSignal output \u0026lt; 3.6 mA within 100 us of fault; restores in 2-3 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003ePower-up Inhibit\u003c\/td\u003e\n\u003ctd\u003eSignal output \u0026lt; 3.6 mA for 2 to 3 seconds after power application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDynamic Performance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProx Out Linear Range\u003c\/td\u003e\n\u003ctd\u003e1.4 mm (55 mils), begins approx. 0.25 mm (10 mils) from target\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eProx Out Scale Factor\u003c\/td\u003e\n\u003ctd\u003e7.87 mV\/um (200 mV\/mil) +\/-6.5% typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eTemperature Stability\u003c\/td\u003e\n\u003ctd\u003eScale factor remains within +\/-10% of 7.87 mV\/um from 0 Celsius to +70 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e5 Hz to 6,000 Hz +0, -3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eMinimum Target Size\u003c\/td\u003e\n\u003ctd\u003e9.5 mm (0.375 in) diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTransmitter Operating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 Celsius to +85 Celsius (-31 Fahrenheit to +185 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eTransmitter Storage Temp\u003c\/td\u003e\n\u003ctd\u003e-52 Celsius to +100 Celsius (-62 Fahrenheit to +212 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eProbe Operating\/Storage Temp\u003c\/td\u003e\n\u003ctd\u003e-52 Celsius to +177 Celsius (-62 Fahrenheit to +351 Fahrenheit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd\u003e100% condensing, non-submerged (with coaxial connector protection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTransducer Tip Material\u003c\/td\u003e\n\u003ctd\u003ePolyphenylene sulfide (PPS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eTransducer Case Material\u003c\/td\u003e\n\u003ctd\u003eAISI 303 or 304 Stainless Steel (SST)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eProbe Cable Type\u003c\/td\u003e\n\u003ctd\u003e75 Ohm coaxial, fluoroethylene propylene (FEP) insulated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eTransmitter Weight\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e \u003c\/td\u003e\n\u003ctd\u003eTotal System Weight\u003c\/td\u003e\n\u003ctd\u003e0.82 kg (1.8 lbm) typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterface \/ Terminal\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmitter Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc Loop Power Input and 4-20 mA Signal Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePROX OUT Terminal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNon-isolated dynamic transducer signal for local diagnostic connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOM Terminal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCommon reference point for signal verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoaxial Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBNC connection for dynamic vibration and gap voltage monitoring (Max 3m distance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTest Input Pin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSignal injection point for verifying loop response via a function generator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eProbe Gap Adjustment\u003c\/h3\u003e\n\u003cp\u003eThe proximity probe must be physically gapped between 0.5 and 1.75 mm (20 and 55 mils) from the target surface. This ensures the target remains inside the transmitter's linear measurement range during machine operation.\u003c\/p\u003e\n\u003ch3\u003eThread Engagement Limits\u003c\/h3\u003e\n\u003cp\u003eDo not exceed the maximum thread engagement lengths during installation to avoid component binding. For 1\/4-28 threads, the limit is 0.375 inches; for M8x1 threads, the limit is 12 mm. Bently Nevada does not cover warranty replacements for probes damaged by excessive thread engagement.\u003c\/p\u003e\n\u003ch3\u003eMoisture Protection\u003c\/h3\u003e\n\u003cp\u003eThe unit utilizes potted construction suitable for up to 100% condensing humidity. To maintain loop integrity, all coaxial connectors must be protected against direct moisture ingress using appropriate sealing boots or enclosures.\u003c\/p\u003e\n\u003ch3\u003eSignal Isolation and Test Adapters\u003c\/h3\u003e\n\u003cp\u003eThe PROX OUT coaxial connector is non-isolated from the 4 to 20 mA loop circuit. While compatible with ungrounded, portable test equipment, you must use a 122115-01 or 990\/991 Test Adapter when connecting to grounded, ac-powered test equipment like oscilloscopes to isolate the loops and maintain safety integrity.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat limitations do vibration transmitters have compared to standard machinery protection monitors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTransmitters provide peak-to-peak trending data only and cannot capture dynamic waveforms during an alarm event. They do not support phase tracking, gap alarms, Timed OK channel defeat, Danger Bypass, or Trip Multiply, and they cannot interface with plant-wide diagnostic platforms like System 1.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the Not OK circuit manage loose sensor connections?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf a probe connection loosens or fails, the transmitter drops the loop output below 3.6 mA within 100 microseconds. Once the connection is secure, the transmitter waits 2 to 3 seconds before restoring the standard output signal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size target is required for the transmitter to meet its accuracy specification?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe target must have a minimum diameter of 9.5 mm (0.375 inches) and be composed of AISI 4140 steel to maintain the calibrated scale factor.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666849362283,"sku":"990-05-70-02-00","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-990-05-70-02-00-vibration-transmitter-dzqdke2pxtm_6cabc840-bf2b-46c8-9c16-0efd97486b2a.jpg?v=1765449009","url":"https:\/\/www.plcprotech.com\/fr\/products\/bently-nevada-990-05-70-02-00-vibration-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}