{"product_id":"bently-nevada-990-04-70-01-00-990-vibration-transmitter","title":"Bently Nevada 990-04-70-01-00 990 Vibration Transmitter","description":"\u003ch2\u003eBently Nevada 990-04-70-01-00 990 Vibration Transmitter\u003c\/h2\u003e\n\u003cp\u003eConfigured for proximity probe signal conditioning and 4-20 mA vibration transmission in machinery monitoring systems, the \u003cstrong\u003eBently Nevada 990-04-70-01-00\u003c\/strong\u003e (\u003cstrong\u003e990-04-70-01-00\u003c\/strong\u003e 990 Vibration Transmitter) provides direct physical\/electrical execution by converting dynamic shaft vibration measurements into an industry-standard analog current output.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe available documentation identifies \u003cstrong\u003e990-04-70-01-00\u003c\/strong\u003e as a complete ordering model. No official suffix breakdown is specified in the provided data.\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\u003eParameter\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e990-04-70-01-00\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eVibration Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e990 Series\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.46 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100 mm x 73 mm x 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensor\u003c\/td\u003e\n\u003ctd\u003eBently Nevada 3300 NSv proximity probe with matching extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length Options\u003c\/td\u003e\n\u003ctd\u003e5 m or 7 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA analog output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\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\u003eZero and Span Adjustment\u003c\/td\u003e\n\u003ctd\u003eNon-interacting external adjustments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Options\u003c\/td\u003e\n\u003ctd\u003eDIN rail clips or bulkhead mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Electronics\u003c\/td\u003e\n\u003ctd\u003eIntegrated Proximitor Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagnostic Outputs\u003c\/td\u003e\n\u003ctd\u003ePROX OUT, COM terminals, and coaxial connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTest Function\u003c\/td\u003e\n\u003ctd\u003eTest Input pin for loop verification\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 and Gap Voltage Validation\u003c\/h3\u003e\n\u003cp\u003eThe 990 Vibration Transmitter accepts input from a 3300 NSv eddy-current proximity probe and its matching extension cable. Internal signal conditioning converts shaft vibration into peak-to-peak engineering units and produces a proportional 4-20 mA output for connection to PLC, DCS, or machinery protection systems.\u003c\/p\u003e\n\u003cp\u003eThe integrated Proximitor Sensor eliminates the need for a separate external signal conditioning unit. In addition to the analog loop output, the transmitter provides non-isolated PROX OUT and COM terminals together with a coaxial diagnostic connector for dynamic vibration and gap voltage monitoring.\u003c\/p\u003e\n\u003cp\u003eGap voltage verification is commonly referenced to approximately -10 VDC during commissioning to confirm proper probe positioning within the linear measurement range. Correct probe scaling and cable matching are required to maintain measurement accuracy and support rotor dynamics analysis.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Which proximity probe is compatible with the 990-04-70-01-00?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The transmitter is designed for use with a Bently Nevada 3300 NSv proximity probe and its matching 5 m or 7 m extension cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the transmitter require an external Proximitor Sensor?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. The unit incorporates an integrated Proximitor Sensor within the transmitter housing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How can the analog loop output be verified during commissioning?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The built-in Test Input pin allows loop output verification using a function generator without requiring machine operation.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the transmitter using either the supplied DIN rail clips or the bulkhead mounting hardware. Ensure adequate mechanical support to prevent cable strain.\u003c\/p\u003e\n\u003cp\u003eUse only the specified 3300 NSv proximity probe and matching extension cable to maintain the calibrated measurement system. Do not substitute cables with different electrical characteristics.\u003c\/p\u003e\n\u003cp\u003eRoute probe cables separately from power wiring and variable-frequency drive output cables to reduce electromagnetic interference. Maintain proper shielding and grounding practices throughout the installation.\u003c\/p\u003e\n\u003cp\u003eBefore placing the transmitter into service, verify probe gap voltage, confirm the 4-20 mA loop current using the Test Input function, and adjust the zero and span potentiometers only when calibration is required.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #e74c3c;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003e\u003cspan style=\"font-family: Arial,Helvetica,sans-serif;\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44332358697059,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/2775\/3315\/files\/990-04-70-01-00-1.jpg?v=1783492018","url":"https:\/\/precisemodule.com\/products\/bently-nevada-990-04-70-01-00-990-vibration-transmitter","provider":"Precise Module Ltd.","version":"1.0","type":"link"}