{"product_id":"bently-nevada-991-01-xx-01-00-mod-284318-01-thrust-transmitter","title":"Transmetteur de poussée Bently Nevada 991-01-XX-01-00 MOD:284318-01","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e991-01-XX-01-00\u003c\/strong\u003e (Internal SKU\/Part Number: \u003cstrong\u003e284318-01\u003c\/strong\u003e) is a rugged, loop-powered, two-wire \u003cstrong\u003e991 Thrust Transmitter\u003c\/strong\u003e engineered by \u003cstrong\u003eBently Nevada\u003c\/strong\u003e (a Baker Hughes business) to provide continuous machinery asset protection by interfacing field transducers directly with plant control networks. Unlike radial vibration models, this specialized transmitter is dedicated to measuring axial thrust position (the relative movement of a machine's rotor toward or away from the thrust bearing face). It integrates the high-frequency signal conditioning electronics of a proximity sensor and an analog transmitter into a single, compact housing. The unit accepts input signals from a non-contacting 3300 XL 8mm eddy-current proximity probe and extension cable, processing raw target gap variations into a linear 4 to 20 mA analog current loop output proportional to total axial displacement.\u003c\/p\u003e\n\u003cp\u003eThis exact hardware configuration features a factory-calibrated \u003cstrong\u003efull-scale measurement scale of 50-0-50 mils (1.2-0-1.2 mm)\u003c\/strong\u003e, which represents a standard full displacement span of 100 mils (2.5 mm) centered around a zero-voltage mid-point bias. The physical casing comes integrated with \u003cstrong\u003e35 mm DIN rail clips\u003c\/strong\u003e for rapid, toolless snap-on mounting into field marshalling junctions or local boxes. The agency option is designated as \u003cstrong\u003e-00\u003c\/strong\u003e, representing the standard general-purpose unclassified zone base model. The internal engineering part number \u003cstrong\u003e284318-01\u003c\/strong\u003e designates the modern manufacturing build variant, featuring upgraded high-stability surface-mount components, optimized temperature compensation filters, and enhanced RFI\/EMI shielding over legacy configurations.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTwo-wire, loop-powered architecture delivering a direct 4 to 20 mA analog current signal straight to host DCS or PLC processing cards.\u003c\/li\u003e\n\u003cli\u003eStandardized 50-0-50 mils (1.2-0-1.2 mm) linear scale window explicitly tailored for dual-direction axial thrust safety tracking.\u003c\/li\u003e\n\u003cli\u003eIntegral 35 mm DIN rail mounting clips allowing rapid, secure snap-fit structural deployment on enclosure racks.\u003c\/li\u003e\n\u003cli\u003eGeneral-purpose unclassified zone footprint (-00 option) providing cost-effective, high-integrity signal loops.\u003c\/li\u003e\n\u003cli\u003eModern 284318-01 hardware design providing superior thermal stability and lower scale factor drift under fluctuating industrial temperatures.\u003c\/li\u003e\n\u003cli\u003eFront-mounted, isolated BNC dynamic terminal providing raw, unconditioned voltage waveforms for local diagnostic data collectors.\u003c\/li\u003e\n\u003cli\u003eIndependent, non-interacting zero and span controls allowing seamless, single-point calibration trims under field conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContinuous axial thrust position tracking and rotor displacement protection on critical industrial steam or gas turbines.\u003c\/li\u003e\n\u003cli\u003eDirect safety loop integration on heavy-duty process gas compressors, turbo-expanders, and multi-stage boiler feed pumps.\u003c\/li\u003e\n\u003cli\u003eStandalone machinery protection marshaling panels inside balance-of-plant utility areas and power generation modules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOption String Breakdown\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eOption Code Slot\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSelected Option Value\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eTechnical Detail\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e991\u003c\/td\u003e\n\u003ctd\u003e991 Thrust Transmitter Product Line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA: Full-scale Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-01\u003c\/td\u003e\n\u003ctd\u003e50-0-50 mils (1.2-0-1.2 mm) target displacement range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: System Length Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-XX\u003c\/td\u003e\n\u003ctd\u003eConfigurable system loop length (Matches probe\/cable parameters)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eC: Mounting Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-01\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN rail clips factory-installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eD: Agency Approval\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-00\u003c\/td\u003e\n\u003ctd\u003eNone (Standard safety area classification for non-hazardous zones)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Assembly SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e284318-01\u003c\/td\u003e\n\u003ctd\u003eModern factory production assembly code\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\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada (Baker Hughes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrdering Suffix Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e991-01-XX-01-00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOEM Assembly Part ID\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e284318-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo-Wire Proximity Thrust Position Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Scale Linear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50-0-50 mils (1.2-0-1.2 mm) total axial displacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Loop Signaling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProportional 4 to 20 mAdc current loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffered Output Scale Factor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNominal 7.87 V\/mm (200 mV\/mil) corresponding to the raw probe gap voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuffered Output Impedance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 kohm nominal (Protected against continuous short circuit faults)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage Window\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e+12 Vdc to +35 Vdc loop power required at the terminal links\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransducer System Match\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalibrated for 3300 XL 8mm proximity probe and extension cable loops\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eField Wiring Block Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAccepts wire gauges up to 1.5 mm squares (16 to 24 AWG) solid or stranded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Construction Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolycarbonate body structure integrated with an aluminum base plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Component Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature Bounds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-35 degC to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature Bounds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-51 degC to +100 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity Index\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95% maximum, non-condensing atmosphere constraints\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eTerminal Connection\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePROBE Coaxial Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMiniature coaxial connection point receiving the incoming transducer extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e+ (SIG) Terminal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePositive current loop terminal receiving incoming +12 to +35 Vdc loop power inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e- (COM) Terminal\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNegative current loop connection returning the regulated 4 to 20 mA measurement signal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBUF BNC Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront-panel isolated BNC socket providing unconditioned sensor voltage waves\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\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIN Rail Alignment:\u003c\/strong\u003e Position the transmitter housing directly over standard 35 mm DIN rail tracking. Apply firm downward pressure until the integrated plastic clips snap tightly over the rail flanges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Frame Isolation:\u003c\/strong\u003e Ensure the internal ground planes remain isolated from bare electrical conduit paths. The transmitter backplate must remain isolated from structural rack frames to eliminate low-voltage ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Length Synchronization:\u003c\/strong\u003e Check that your specified system length option (Option -XX) perfectly matches the total physical length of the attached 3300 XL 8mm probe and extension cable to maintain calibrated accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Gap Offsetting:\u003c\/strong\u003e During probe installation, the target face should be mechanically positioned so the probe sits at the physical center of its linear range (typically corresponding to a 12 mA output loop current and a specific DC voltage bias on the BNC port) when the rotor is at its normal active thrust position.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666862076267,"sku":"991-01-XX-01-00 MOD:284318-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-991-01-xx-01-00-mod-284318-01-thrust-transmitter-obwqeuloxex_a2793d87-5986-4e37-97cc-5092a8797241.jpg?v=1765449331","url":"https:\/\/www.plcprotech.com\/fr\/products\/bently-nevada-991-01-xx-01-00-mod-284318-01-thrust-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}