{"product_id":"bently-nevada-991-06-70-02-01-thrust-transmitter","title":"Bently Nevada 991-06-70-02-01 Thrust Transmitter","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 991-06-70-02-01\u003c\/strong\u003e is a 2-wire, loop-powered \u003cstrong\u003eThrust Transmitter\u003c\/strong\u003e designed to process signals from a proximity probe system to measure axial shaft position or thrust displacement on rotating machinery. This device conditions the raw signal into a standard 4 to 20 mA analog output proportional to the total target movement. It is engineered to interface directly with control systems like PLC or DCS architectures without requiring a separate monitor rack, providing a cost-effective setup for critical machinery protection. The unit is optimized for integration with compatible proximity transducers to ensure accurate, high-speed axial displacement monitoring in industrial environments.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoop-powered 2-wire design simplifies field wiring and lowers installation costs.\u003c\/li\u003e\n\u003cli\u003eDirect 4 to 20 mA analog output interfaces seamlessly with PLCs and DCS systems.\u003c\/li\u003e\n\u003cli\u003eNon-contacting eddy current measurement principle provides long-term reliability.\u003c\/li\u003e\n\u003cli\u003eDedicated BNC connector provides buffered raw voltage signal for diagnostics.\u003c\/li\u003e\n\u003cli\u003eCompact DIN rail mountable design saves control cabinet space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAxial thrust displacement monitoring on centrifugal compressors\u003c\/li\u003e\n\u003cli\u003eSteam and gas turbine rotor axial position tracking\u003c\/li\u003e\n\u003cli\u003eBoiler feed pump shaft monitoring\u003c\/li\u003e\n\u003cli\u003eIndustrial gearbox thrust bearing wear evaluation\u003c\/li\u003e\n\u003cli\u003eHigh-speed fan and blower shaft positioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e991: Thrust Transmitter\u003c\/li\u003e\n\u003cli\u003e06: 3300 XL 8 mm proximity probe compatibility with 1.0 mm linear range\u003c\/li\u003e\n\u003cli\u003e70: 7.0 metres system length option\u003c\/li\u003e\n\u003cli\u003e02: 35 mm DIN rail mounting option\u003c\/li\u003e\n\u003cli\u003e01: Multi-approval option (ATEX, IECEx, CSA)\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\"\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eThrust Transmitter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eOutput Signal\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003e4 to 20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003ePower Requirements\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003e17 to 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eScale Factor\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e4 mA\/mm (or equivalent mil-based calibration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"8\"\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd data-row=\"8\"\u003e-35 to +85 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"9\"\u003eStorage Temperature Range\u003c\/td\u003e\n\u003ctd data-row=\"9\"\u003e-40 to +100 Celsius\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"10\"\u003eHousing Material\u003c\/td\u003e\n\u003ctd data-row=\"10\"\u003eZinc-plated steel or specialized polymer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"11\"\u003eMounting Type\u003c\/td\u003e\n\u003ctd data-row=\"11\"\u003e35 mm DIN rail mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"12\"\u003eEstimated Weight\u003c\/td\u003e\n\u003ctd data-row=\"12\"\u003e0.43 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"13\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-row=\"13\"\u003e25.4 mm width x 112 mm height x 99 mm depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnections \/ Interfaces\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eConnector Pin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003e+4-20mA \/ +VTX\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003ePositive Power \/ Loop Current Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003e-4-20mA \/ -VTX\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eNegative Power \/ Loop Current Return\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003ePROX\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eProximity Probe Signal Input Terminal\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 Reference Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eSHLD\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003eShield \/ Earth Ground Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eBNC Jack\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003eBuffered Raw Voltage Output (10.2 mV\/micrometer)\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\u003e\n\u003cstrong\u003eDIN Rail Mounting:\u003c\/strong\u003e Clip the transmitter securely onto a grounded 35 mm DIN rail inside an IP54 or better enclosure to protect against dust and water entry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Termination:\u003c\/strong\u003e Connect the transducer cable shields to the transmitter SHLD terminal, and ensure the control loop shield is grounded at the DCS\/PLC side only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProbe Gap Adjustment:\u003c\/strong\u003e Ensure the associated proximity probe is mechanically adjusted to its physical mid-range voltage before calibrating the 4 to 20 mA zero-point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Routing:\u003c\/strong\u003e Separate the input proximity probe cables and output current loop cables from high-voltage AC lines to prevent magnetic noise coupling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Polarity:\u003c\/strong\u003e Verify loop voltage polarity before energizing to prevent damage to the internal protection diodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eATEX\u003c\/li\u003e\n\u003cli\u003eIECEx\u003c\/li\u003e\n\u003cli\u003eCSA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary function of this transmitter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt converts raw proximity probe signals into a proportional 4 to 20 mA current loop for tracking shaft axial displacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this device require a separate rack-based monitoring system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, it is intended to send data directly to a PLC or DCS, eliminating the need for dedicated rack monitors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do engineers collect raw dynamic vibration data from this unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA front-panel BNC jack provides local access to the unconditioned dynamic signal using standard portable data collectors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat loop voltage is required to power the unit properly?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe transmitter operates efficiently within a standard loop supply voltage window of 17 to 30 VDC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be mounted directly on the machine housing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt should be installed in a protected field junction box or control enclosure to minimize high-temperature exposure and excessive vibration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if the loop polarity is accidently reversed during wiring?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInternal reverse-polarity protection prevents component damage, though the unit will not output a current signal until corrected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs calibration required during initial installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe hardware comes factory calibrated to specific system lengths and probe types, requiring only gap verification during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan a 5-metre probe system be connected to a 7.0-metre transmitter option?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, mismatching the electrical system length options will cause significant linearity errors and corrupt the accuracy of the output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the significance of the multi-approval suffix option?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt certifies the transmitter for installation in specific hazardous areas under ATEX, IECEx, and CSA guidelines when installed with barriers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow should electrical noise from variable frequency drives be handled?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnsure all shields are intact, properly isolated from the machine ground, and tied exclusively to the proper instrument common rail.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666733953387,"sku":"991-06-70-02-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-991-06-70-02-01-thrust-transmitter-fb4rym3o53w_88ad2eb0-7ac2-4e76-be22-962babfff94a.jpg?v=1765446737","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-991-06-70-02-01-thrust-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}