{"product_id":"991-25-50-01-00-bently-nevada-991-thrust-transmitter","title":"991-25-50-01-00 Bently Nevada 991 Thrust Transmitter","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 991-25-50-01-00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e991\u003c\/strong\u003e Thrust Transmitter, operates as a dedicated hardware component for axial shaft displacement signal conditioning within machinery protection systems.\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-25\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd\u003e25-0-25 mils (+\/-25 mils) full-scale axial displacement 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) calibrated system length\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-00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option\u003c\/td\u003e\n\u003ctd\u003eNot required (No hazardous area approvals)\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\u003e991-25-50-01-00\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\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 Type\u003c\/td\u003e\n\u003ctd\u003eAxial shaft displacement (thrust position)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-Scale Range\u003c\/td\u003e\n\u003ctd\u003e25-0-25 mils (+\/-25 mils)\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\u003eAgency Approvals\u003c\/td\u003e\n\u003ctd\u003eNot required (-00 option)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLoop-powered via 2-wire 4-20 mA current loop\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 transmitter conditions high-frequency RF excitation signals driven to non-contacting eddy-current proximity probes across a calibrated 5.0-metre system length. Commissioning requires physical gap voltage validation across test terminal connections to verify the static baseline target of -10 VDC when the machine shaft rests at mechanical zero. Precision eddy-current probe scaling translates physical displacement variations into a proportional 4-20 mA current output across the 25-0-25 mils linear measurement span.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is primary operating power delivered to the 991-25-50-01-00 module?\u003c\/p\u003e\n\u003cp\u003eA: Power is supplied directly over the 2-wire 4-20 mA current loop interface connected to the host control system analog input channel.\u003c\/p\u003e\n\u003cp\u003eQ: Can extension cables be lengthened or shortened in the field?\u003c\/p\u003e\n\u003cp\u003eA: No, the 5.0-metre total system length option is factory-calibrated to specific probe inductance and cable capacitance; modifying cable lengths alters system frequency response and current loop accuracy.\u003c\/p\u003e\n\u003cp\u003eQ: What mounting mechanism is supplied with the -01 option code?\u003c\/p\u003e\n\u003cp\u003eA: Option -01 provides pre-installed mounting clips that secure the transmitter assembly directly onto standard 35 mm DIN rails.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInstall the transmitter module onto an industrial 35 mm DIN rail inside a protective field enclosure using the pre-installed clips.\u003c\/li\u003e\n\u003cli\u003eConnect the 5.0-metre proximity probe extension cable coaxial fitting to the transmitter input jack, securing it hand-tight.\u003c\/li\u003e\n\u003cli\u003eMeasure static DC bias voltage across raw probe test terminals using a digital multimeter, adjusting mechanical probe depth until a target reading of -10 VDC is obtained at mechanical mid-span.\u003c\/li\u003e\n\u003cli\u003eRoute 2-wire shielded twisted-pair conductors from the output terminals to the host automation system current loop card.\u003c\/li\u003e\n\u003cli\u003eConnect the field wiring cable drain shield to a single earth ground bar inside the cabinet to prevent noise pickup and ground loop currents.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43825075552346,"sku":"991-25-50-01-00","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_035fa879-9abb-4c7e-8cd3-c9807f0b3af0.png?v=1786438061","url":"https:\/\/www.spareoil.com\/products\/991-25-50-01-00-bently-nevada-991-thrust-transmitter","provider":"SpareOil Automation","version":"1.0","type":"link"}