{"product_id":"bently-nevada-991-06-50-01-05-991-thrust-transmitter","title":"Bently Nevada 991-06-50-01-05 991 Thrust Transmitter","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 991-06-50-01-05\u003c\/strong\u003e is a 2-wire, loop-powered machinery protection instrument designed to measure axial shaft displacement. This \u003cstrong\u003e991 Thrust Transmitter\u003c\/strong\u003e interfaces directly with a 3300 NSv proximity probe and its matching 5.0-meter extension cable. It processes proximity sensor signals into a standard 4 to 20 mA DC linear current output proportional to total thrust movement. This continuous monitoring signal integrates directly with standard programmable logic controllers (PLCs), distributed control systems (DCSs), or SCADA hardware without requiring dedicated machinery monitoring rack systems. The transmitter incorporates an internal Proximitor sensor within a single potted housing to withstand demanding industrial plant conditions.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated Proximitor sensor inside a standalone enclosure requires no external driver module\u003c\/li\u003e\n\u003cli\u003eNon-isolated PROX OUT and COM coaxial terminals provide dynamic voltage access for portable diagnostic instruments\u003c\/li\u003e\n\u003cli\u003eNon-interacting zero and span adjustment potentiometers simplify field calibration trims\u003c\/li\u003e\n\u003cli\u003eTest Input pin accepts external signal sources for quick verification of current loop output performance\u003c\/li\u003e\n\u003cli\u003eIntegral Power-up Inhibit circuit prevents signal tracking errors caused by initial line voltage transients\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFluid-film thrust bearing monitoring on small centrifugal air compressors\u003c\/li\u003e\n\u003cli\u003eShaft axial displacement tracking on industrial pumps, motors, and cooling tower fans\u003c\/li\u003e\n\u003cli\u003eCritical machinery protection inside petrochemical refineries and power generation plants\u003c\/li\u003e\n\u003cli\u003eGeneral rotating machinery predictive maintenance setups lacking monitoring rack space\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003eElectrical Parameters Value\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003ePower Requirements\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e2-wire, loop-powered (12 to 35 VDC input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eCurrent Loop Output\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e4 to 20 mA DC proportional to thrust position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eMaximum Loop Load\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003e1,000 ohms at 35 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eSystem Accuracy\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003ePlus or minus 1.5% of Full Scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eFault Response\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eLess than 3.6 mA in 100 microseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003ePerformance and Hardware Configuration Value\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eFull-Scale Range Option (-06)\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e0.6-0-0.6 mm (±0.6 mm \/ 25 mils) total thrust movement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eCable System Length (-50)\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e5.0 meters (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eMounting Type Option (-01)\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003e35 mm DIN rail clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eSensor Input Compatibility\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e3300 NSv proximity probe and extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003eEnvironmental and Mechanical Value\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e-35 deg C to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e-51 deg C to +100 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eRelative Humidity\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003e0 to 100% RH condensing, non-submerged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eVibration Resistance\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e50g conforming to IEC 60068-2-6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eShock Survival\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003e100g at 11 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eTransmitter Weight\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e0.43 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eConnections \/ Interfaces\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003eTerminal \/ Connector Pin Function\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003e+4-20mA\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003ePositive loop power supply input and current transmission terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003e-4-20mA\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eNegative loop power supply return connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003ePROX OUT\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eCoaxial\/terminal signal output for unisolated dynamic diagnostics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eCOM\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003eCommon circuit reference return for diagnostic instruments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eTEST IN\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eTest pin interface for function generator or variable DC verification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eCoaxial Connector\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003eMiniature female socket matching the 3300 NSv extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSnap the device onto a standard 35 mm DIN rail assembly or bolt using optional hardware within a weatherproof panel enclosure.\u003c\/li\u003e\n\u003cli\u003eRoute the loop current conductors through dedicated conduit paths separate from high-current AC motor leads or switching control wires to protect against EMI.\u003c\/li\u003e\n\u003cli\u003eSeal all coaxial connections between the 3300 NSv proximity probe, extension cable, and transmitter terminal socket with self-fusing tape to prevent moisture infiltration.\u003c\/li\u003e\n\u003cli\u003eAvoid structural connection adjustments to the zero and span potentiometers until the proximity probe tip clearance has been set to the proper physical gap.\u003c\/li\u003e\n\u003cli\u003eUse an isolated test instrument or a matching Bently Nevada test adapter when connecting AC-powered oscilloscopes to the PROX OUT and COM terminals to protect loop signaling integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompliance and Certifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eATEX\u003c\/li\u003e\n\u003cli\u003eABS\u003c\/li\u003e\n\u003cli\u003eCSA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat mechanical movement does the Bently Nevada 991-06-50-01-05 measure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt measures the axial thrust or displacement of a rotating machinery shaft rather than radial casing vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require a standalone Proximitor driver unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, it features a built-in Proximitor sensor that processes proximity probe eddy-current fields directly within the transmitter module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat specific cable length is this transmitter calibrated to support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe -50 option specifies that the transmitter is calibrated to match a 5.0-meter proximity probe and extension cable system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the full-scale range defined by the -06 option?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe full-scale measurement limits are 0.6-0-0.6 mm, providing an aggregate scale of ±0.6 mm of shaft axial travel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I connect an AC-powered oscilloscope directly to the PROX OUT pin?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause the dynamic PROX OUT terminal is not isolated from the 4 to 20 mA power loop, using an external signal isolation adapter is highly recommended to protect against signal interference.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat sensor is electrically matched with this thrust transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is built exclusively to read signals from a Bently Nevada 3300 NSv proximity probe.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the Power-up Inhibit feature protect the control room loops?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt mutes erroneous transient output currents during startup spikes to prevent false alarms or safety trips in the connected DCS or PLC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of mounting method does this unit feature?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe -01 option provides integral 35 mm DIN rail mounting clips for immediate standard rail installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit operate in high-humidity machinery environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it is built with fully potted electronic assemblies and certified up to 100% condensing humidity when coaxial connections are properly protected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the -05 configuration suffix represent?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe -05 code designates a specific multi-certification agency approval package, including ATEX, CSA, and ABS Marine ratings.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666746274155,"sku":"991-06-50-01-05","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-991-06-50-01-05-vibration-transmitter-bh34x4ouvy4_82ac7102-9bd7-4cad-8aff-31c08d8a50e3.jpg?v=1765446945","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-991-06-50-01-05-991-thrust-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}