{"product_id":"bently-nevada-991-25-70-01-05-thrust-transmitter","title":"Transmetteur de poussée Bently Nevada 991-25-70-01-05","description":"\u003cp\u003eThe Bently Nevada 991-25-70-01-05 is a 2-wire loop-powered thrust (axial displacement) transmitter developed for OEM machinery monitoring applications on compressors, pumps, motors, and rotating equipment. It converts the proximity probe signal into a standard 4–20 mA output for direct integration with PLC, DCS, or control systems.\u003c\/p\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003eSuffix CodeOption \/ ParameterTechnical Description\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\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-25\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e25-0-25 mils\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003e-70\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003eSystem Length Option\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e7.0 meters (23.0 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003e-01\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003eMounting Option\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\"\u003e-05\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003eAgency Approval Option\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003eCSA Division 2, ATEX Zone 0, ATEX Zone 2, ABS maritime approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated proximity probe driver circuit\u003c\/li\u003e\n\u003cli\u003e4–20 mA proportional axial displacement output\u003c\/li\u003e\n\u003cli\u003eNon-interacting Zero and Span adjustments\u003c\/li\u003e\n\u003cli\u003ePower-up signal suppression to avoid false trips\u003c\/li\u003e\n\u003cli\u003e“Not OK” signal blanking diagnostics\u003c\/li\u003e\n\u003cli\u003eDedicated PROX OUT dynamic signal connector\u003c\/li\u003e\n\u003cli\u003eEncapsulated construction for high-humidity environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"1\"\u003eParameterDescription\u003c\/td\u003e\n\u003ctd data-row=\"1\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"2\"\u003eCompatible Probe\u003c\/td\u003e\n\u003ctd data-row=\"2\"\u003e3300 NSv proximity probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"3\"\u003eOutput Signal\u003c\/td\u003e\n\u003ctd data-row=\"3\"\u003e4–20 mA DC loop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"4\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd data-row=\"4\"\u003e+12 to +35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"5\"\u003eDynamic Output\u003c\/td\u003e\n\u003ctd data-row=\"5\"\u003ePROX OUT coaxial connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"6\"\u003eHumidity Rating\u003c\/td\u003e\n\u003ctd data-row=\"6\"\u003e100% condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"7\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd data-row=\"7\"\u003e0.43 kg (0.95 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-row=\"8\"\u003eMounting\u003c\/td\u003e\n\u003ctd data-row=\"8\"\u003e35 mm DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003ch4\u003ePhysical Mechanical Mounting\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSnap the transmitter onto a standard 35 mm DIN rail\u003c\/li\u003e\n\u003cli\u003eInstall away from high-temperature sources\u003c\/li\u003e\n\u003cli\u003eUse a 304 stainless steel enclosure for outdoor environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProbe Installation \u0026amp; Gapping\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eUse only matched 3300 NSv probe systems\u003c\/li\u003e\n\u003cli\u003eMaintain a total system cable length of exactly 7.0 meters\u003c\/li\u003e\n\u003cli\u003eVerify the shaft target area meets minimum sizing requirements\u003c\/li\u003e\n\u003cli\u003eAdjust the probe to the midpoint of the linear operating range\u003c\/li\u003e\n\u003cli\u003eConfirm the PROX OUT voltage is approximately 6.5 Vdc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eElectrical Loop Wiring\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the transmitter to a +12 to +35 Vdc loop supply\u003c\/li\u003e\n\u003cli\u003eVerify Power (+) and Signal (-) polarity before energizing\u003c\/li\u003e\n\u003cli\u003eTighten the miniature coaxial connector securely\u003c\/li\u003e\n\u003cli\u003eGround the cable shield at the control cabinet side only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eZero \u0026amp; Span Calibration\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAdjust the Zero potentiometer at the mechanical center position\u003c\/li\u003e\n\u003cli\u003eSet loop output current to 12 mA during midpoint calibration\u003c\/li\u003e\n\u003cli\u003eAdjust the Span potentiometer at full-scale displacement\u003c\/li\u003e\n\u003cli\u003eNon-interacting potentiometers minimize recalibration iterations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003ch4\u003eWhy is the initial probe gap important?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIncorrect gaps limit usable measurement range\u003c\/li\u003e\n\u003cli\u003eImproper installation may allow probe-to-rotor contact\u003c\/li\u003e\n\u003cli\u003eThe operating gap must remain within 0.25 to 1.65 mm (10 to 65 mils)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy does the loop current drop below 3.6 mA?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThe transmitter has entered “Not OK” protection mode\u003c\/li\u003e\n\u003cli\u003eProbe or extension cable may be open or shorted\u003c\/li\u003e\n\u003cli\u003eThe coaxial connector may not be fully seated\u003c\/li\u003e\n\u003cli\u003eThe failsafe output prevents false PLC or DCS trip signals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCan an oscilloscope connect directly to the PROX OUT port?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eThe PROX OUT connector is non-isolated from the 4–20 mA loop\u003c\/li\u003e\n\u003cli\u003eStandard grounded oscilloscopes can create ground loops\u003c\/li\u003e\n\u003cli\u003eUse a battery-powered meter or isolated interface adapter instead\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCan the extension cable be shortened or spliced?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eModifying cable length is strictly prohibited\u003c\/li\u003e\n\u003cli\u003eCable impedance changes affect calibration accuracy\u003c\/li\u003e\n\u003cli\u003eShortening or extending the cable invalidates factory calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility Notes\u003c\/h3\u003e\n\u003cp\u003eThe transmitter is specifically designed for use with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBently Nevada 3300 NSv proximity probe systems\u003c\/li\u003e\n\u003cli\u003eOEM centrifugal compressors\u003c\/li\u003e\n\u003cli\u003eSmall pumps and rotating machinery\u003c\/li\u003e\n\u003cli\u003ePLC and DCS analog input systems\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666735296875,"sku":"991-25-70-01-05","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-991-25-70-01-05-thrust-transmitter-4nnys1eggun_8af749c8-fb0e-4137-a612-cfed2c951e30.jpg?v=1765446775","url":"https:\/\/www.plcprotech.com\/fr\/products\/bently-nevada-991-25-70-01-05-thrust-transmitter","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}