{"product_id":"990-08-xx-01-00-mod-283278-01-bently-nevada-vibration-transmitter-990-991-series","title":"990-08-XX-01-00 MOD:283278-01 Bently Nevada Vibration Transmitter 990\/991 Series","description":"\u003cp\u003eThe \u003cstrong\u003eBently Nevada 990-08-XX-01-00 MOD:283278-01\u003c\/strong\u003e serves as the primary \u003cstrong\u003e990\u003c\/strong\u003e Vibration Transmitter utilized to execute radial vibration monitoring across machinery protection platforms. It functions as a 2-wire, loop-powered device that integrates the capabilities of a Proximitor sensor directly into a localized transmitter enclosure. The hardware accepts input from a non-contacting 3300 NSv proximity probe and matching extension cable assembly, converting shaft dynamic movement into a proportional 4-20 mA linear industrial DC output for direct integration into programmable logic controllers (PLCs) or distributed control systems (DCS).\u003c\/p\u003e\n\u003ch3\u003eNomenclature \u0026amp; Option Matrix Decoding\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e990\u003c\/strong\u003e: Base model series for the integrated proximity radial vibration transmitter framework.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e08\u003c\/strong\u003e: Full-scale range option selecting 0-8 mils peak-to-peak (0-200 \\mu m peak-to-peak).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXX\u003c\/strong\u003e: System length selection option designating either 5.0 meters (16.4 feet) or 7.0 meters (23.0 feet) balanced cable tuning parameters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e01\u003c\/strong\u003e: Mechanical interface option supplying integrated 35 mm DIN rail mounting hardware clips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e00\u003c\/strong\u003e: Agency approval option indicating certifications are not required for the deployment environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOD:283278-01\u003c\/strong\u003e: Factory electronic modification identifier specifying custom internal engineering adjustments or hardware components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTransmitter 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\u003e990-08-XX-01-00 MOD:283278-01\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.46 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e10.0 x 7.3 x 6.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNative Sensor Input\u003c\/td\u003e\n\u003ctd\u003e1 x Non-contacting 3300 NSv Proximity Probe \u0026amp; Extension Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Output\u003c\/td\u003e\n\u003ctd\u003eProportional 4-20 mA DC linear peak-to-peak vibration amplitude\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLoop-powered operation via external supply track\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage Spectrum\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 VDC input at the transmitter terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limiting Threshold\u003c\/td\u003e\n\u003ctd\u003e23 mA typical current clamping circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration Diagnostics\u003c\/td\u003e\n\u003ctd\u003eNon-interacting zero and span adjustment potentiometers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStructural Mounting\u003c\/td\u003e\n\u003ctd\u003eIntegrated 35 mm DIN rail clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-35 to +85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\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; Rotor Dynamics Processing\u003c\/h3\u003e\n\u003cp\u003eThe 990-08-XX-01-00 MOD:283278-01 transmitter relies on precise eddy-current probe scaling networks to accurately map high-frequency rotor dynamics fields into stable loop metrics. Accurate operation requires field technicians to perform baseline gap voltage validation (-10 VDC targets) across diagnostic terminals to confirm appropriate physical positioning over the shaft target. The internal analogue circuit layout features dedicated filters optimized for cross-talk suppression, preventing adjacent electromagnetic interference fields from distorting the peak-to-peak vibration translation matrix. The result is pure overall amplitude output matching the configured full-scale spectrum.\u003c\/p\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 990-08-XX-01-00 MOD:283278-01 Vibration Transmitter Unit\u003c\/li\u003e\n\u003cli\u003e2 x Pre-installed 35 mm DIN rail mounting clips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003ch3\u003eGrounding Rules\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTerminate the incoming loop wiring shield drain wire exclusively at the instrumentation clean earth ground bus within the host control room enclosure.\u003c\/li\u003e\n\u003cli\u003eMaintain complete electrical isolation between the proximity sensor extension cable shield layer and local structural machine frames to block ground loop generation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWiring Constraints\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that total loop resistance, including field interconnect cables and barriers, stays within specified voltage drop limits across the +12 to +35 VDC spectrum.\u003c\/li\u003e\n\u003cli\u003eMatch sensor elements exactly to the factory tuned 5.0 meter or 7.0 meter system length selection to prevent calibration deviations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShielding Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnclose all signal loop interconnect conductors inside a continuous, grounded steel conduit to ensure maximum external electromagnetic field rejection.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum structural spacing boundary of 300 mm between sensor conduits and heavy three-phase alternating current motor feed tracks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental Limitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnclose the transmitter inside a sealed weatherproof junction box if local ambient industrial areas face temperatures outside the -35 to +85 deg C window.\u003c\/li\u003e\n\u003cli\u003eOrient the module base away from positions subject to high-velocity oil spray or extreme physical shock events during machine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What is the hot-swap behavior when replacing the 990 transmitter during live industrial processes?\u003c\/p\u003e\n\u003cp\u003eA: The associated control loop must be locked in manual bypass mode prior to disconnection to prevent the loss of loop current from tripping emergency machinery logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What electrical load does the transmitter place on an internal monitor backplane supply?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter imposes 0 mA of internal backplane load, functioning as a standalone 2-wire device powered directly by the external 4-20 mA instrumentation loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What is the electronic redundancy switching delay when the 990 transmitter encounters a probe fault?\u003c\/p\u003e\n\u003cp\u003eA: The internal hardwired analog infrastructure triggers immediately, contributing 0 ms of processing delay to the system loop failure indication.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: Does the 990-08-XX-01-00 MOD:283278-01 require software driver updates for DCS communication?\u003c\/p\u003e\n\u003cp\u003eA: No, the transmitter executes data processing via fully analog circuits, ensuring functional neutrality across varying host microcode versions and software firmware platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What level of electrical signal isolation exists at the front panel diagnostic ports?\u003c\/p\u003e\n\u003cp\u003eA: The diagnostic terminals share a common ground with the internal circuit; testing devices must use isolated inputs to avoid loop errors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: What field wiring constraints must be followed when working with the adjustment potentiometers?\u003c\/p\u003e\n\u003cp\u003eA: Use non-conductive tools to adjust the non-interacting zero and span potentiometers underneath the label to prevent accidental terminal short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: Can this radial transmitter capture dynamic phase angle metrics for System 1 diagnostic platforms?\u003c\/p\u003e\n\u003cp\u003eA: No, the 4-20 mA loop provides overall peak-to-peak amplitude values and cannot compute phase vectors or support transient rule pak analysis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eQ: How does the internal current limiting circuit protect downstream PLC analog input cards?\u003c\/p\u003e\n\u003cp\u003eA: The transmitter clamps its loop output at a typical threshold of 23 mA, preventing extreme probe over-travel from over-ranging and damaging input components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":46025229107373,"sku":"990-08-XX-01-00 MOD:283278-01","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/Bently991-001-xx-01-cn_1_9d97586a-ec1c-482d-9b1f-7e6c99ebf49a.jpg?v=1783784251","url":"https:\/\/www.maxwellplc.com\/ru\/products\/990-08-xx-01-00-mod-283278-01-bently-nevada-vibration-transmitter-990-991-series","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}