{"product_id":"991-06-50-01-cn-991-thrust-transmitter-bently-nevada","title":"991-06-50-01-CN 991 Thrust Transmitter | Bently Nevada","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 991-06-50-01-CN\u003c\/strong\u003e serves as the primary \u003cstrong\u003e991\u003c\/strong\u003e Thrust Transmitter utilized to execute axial shaft displacement measurement across machinery protection platforms.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOption Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eOption Description\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTechnical Definition\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e991\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBase Model\u003c\/td\u003e\n\u003ctd\u003eThrust Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-06\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd\u003e0.6 - 0 - 0.6 mm measurement range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-50\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSystem Length Option\u003c\/td\u003e\n\u003ctd\u003e5.0 metres (16.4 feet) total system length calibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMounting Option\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN-rail clips installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-CN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option\u003c\/td\u003e\n\u003ctd\u003eATEX\/IECEx and Chinese NEPSI hazardous area marking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e991-06-50-01-CN\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\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eThrust Transmitters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Parameter\u003c\/td\u003e\n\u003ctd\u003eAxial shaft displacement (thrust)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Scale Range\u003c\/td\u003e\n\u003ctd\u003e0.6 - 0 - 0.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e5.0 metres (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eProportional 4-20 mA loop current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Interface\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN-rail clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHazardous Area Approvals\u003c\/td\u003e\n\u003ctd\u003eATEX\/IECEx and Chinese NEPSI (-CN option)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLoop-powered via 24 VDC field circuit\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 \u0026amp; Gap Voltage Validation (-10 VDC Targets)\u003c\/h3\u003e\n\u003cp\u003eThe 991 transmitter processes input signals from non-contacting eddy-current proximity probes across a calibrated 5.0-metre system length. Commissioning requires physical gap voltage validation across raw probe output terminals to set the nominal baseline bias to -10 VDC when the machine rotor rests at mechanical mid-position. Precision eddy-current probe scaling translates mechanical shaft displacement into a proportional 4-20 mA current loop output across the 0.6 - 0 - 0.6 mm physical span.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is operating power supplied to the 991 transmitter terminals?\u003c\/p\u003e\n\u003cp\u003eA: Operating power is supplied directly through the 2-wire 4-20 mA current loop interface from the host control system or monitoring cabinet.\u003c\/p\u003e\n\u003cp\u003eQ: What certification markings are provided under the -CN option code?\u003c\/p\u003e\n\u003cp\u003eA: The -CN suffix indicates compliance with hazardous area certification standards, providing ATEX, IECEx, and Chinese NEPSI explosion-proof and intrinsic safety approvals.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 5.0-metre system length option be modified in the field using non-calibrated extension cables?\u003c\/p\u003e\n\u003cp\u003eA: No, the total system length of 5.0 metres is factory-calibrated to match specific transducer coil inductance and cable capacitance; alter cable length disrupts output scaling.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount the transmitter module securely onto a standard 35 mm DIN rail inside an enclosure rated for the local hazardous area classification.\u003c\/li\u003e\n\u003cli\u003eConnect the matching 5.0-metre proximity probe extension cable coaxial connector to the transmitter input terminal, ensuring a clean and finger-tight joint.\u003c\/li\u003e\n\u003cli\u003eValidate static DC gap voltage using a multimeter across raw signal test terminals, adjusting mechanical probe depth until a target of -10 VDC is established.\u003c\/li\u003e\n\u003cli\u003eConnect 2-wire shielded twisted-pair cabling to the 4-20 mA output terminals according to intrinsically safe or explosion-proof wiring diagrams.\u003c\/li\u003e\n\u003cli\u003eGround the field cable shield at a single point on the cabinet earthing bus bar to suppress electromagnetic interference and prevent ground loop noise.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43825063723098,"sku":"991-06-50-01-CN","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/991-05-70-01-01_22217d06-672c-41f6-9765-6daafe41d704.png?v=1786437653","url":"https:\/\/www.spareoil.com\/products\/991-06-50-01-cn-991-thrust-transmitter-bently-nevada","provider":"SpareOil Automation","version":"1.0","type":"link"}