{"product_id":"bently-nevada-991-06-50-01-00-industrial-automation-module","title":"Bently Nevada 991-06-50-01-00 Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-50-01-00 Thrust Transmitter is a precision industrial automation module designed for continuous axial vibration monitoring. This probe vibration transmitter provides a reliable 4-20 mA output signal proportional to shaft thrust displacement. Part of the 991 series, it accepts a non-contacting 3300 NSv proximity probe and integrates seamlessly into control systems. The model 991-06-50-01-00 offers a full-scale option of 0.6-0-0.6 mm with a 5.0 meter system length. Its DIN rail mounting clip enables fast installation in electrical cabinets.\u003c\/p\u003e\u003cp\u003eWhen axial thrust exceeds safe limits, plant downtime and equipment damage can occur. The 991-06-50-01-00 addresses this with a Not OK\/Signal Defeat function that drives the output below 3.6 mA within 100 µs of a fault, quickly alerting operators. This feature makes it a critical component for turbomachinery protection.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-scale Option\u003c\/td\u003e\n\u003ctd\u003e0.6-0-0.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e5.0 meters (16.4 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN-rail clips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA (2-wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Input\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc at transmitter terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range\u003c\/td\u003e\n\u003ctd\u003e0.25 to 1.65 mm for Prox Out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eWithin ±1.5% of full scale (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Loop Resistance\u003c\/td\u003e\n\u003ctd\u003e1,000 Ω including cable at 35 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limiting\u003c\/td\u003e\n\u003ctd\u003e23 mA typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZero and Span\u003c\/td\u003e\n\u003ctd\u003eNon-interacting external adjustments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-35°C to +85°C (-31°F to +185°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-51°C to +100°C (-60°F to +212°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.43 kg (0.9 lbm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-06-50-01-00 serves in critical rotating machinery such as steam turbines, centrifugal compressors, and large pumps. Its axial measurement capability monitors thrust bearing wear and prevents catastrophic failure. For example, in a turbine generator set, the transmitter provides a 4-20 mA signal to the distributed control system (DCS) for continuous protective monitoring. The Not OK feature ensures rapid response to probe or electronics faults, aligning with API 670 protection standards.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup Guidance\u003c\/h2\u003e\u003cp\u003eMount the 991-06-50-01-00 using the included 35 mm DIN-rail clips. Accept a 3300 NSv proximity probe and extension cable (sold separately). Connect power (+12 to +35 Vdc) and loop wiring per the terminal diagram. Adjust zero and span using non-interacting external trimmers. Verify the 4-20 mA output over the specified full-scale range. The transmitter operates in a 2-wire configuration, simplifying field wiring. Ensure loop resistance does not exceed 1,000 Ω at 35 Vdc to maintain accuracy.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eThe 991-06-50-01-00 requires minimal routine care. Inspect the DIN rail connection and probe cable annually. The operating temperature range of -35°C to +85°C suits harsh environments. The Not OK\/Signal Defeat feature self-checks the transmitter and probe integrity, enhancing system reliability. Store the module between -51°C and +100°C when not in use. Its 0.43 kg weight and compact design simplify spare parts management.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Purchasing Advice\u003c\/h2\u003e\u003cp\u003eBefore ordering, verify the required system length (option -50 indicates 5.0 meters) and full-scale range (06 = 0.6-0-0.6 mm). The mounting option 01 provides DIN-rail clips. For compatibility, use only a 3300 NSv proximity probe and extension cable. The agency approval option is 00 (not required). For assistance selecting the correct configuration, contact ubest101, a trusted supplier of Bently Nevada modules like the 991-06-50-01-00.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416679313507,"sku":"991-06-50-01-00","price":260.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-06-50-01-00-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}