{"product_id":"bently-nevada-991-25-50-02-cn-industrial-automation-module","title":"Bently Nevada 991-25-50-02-CN Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-25-50-02-CN is a precision thrust transmitter designed for axial vibration monitoring in rotating machinery. This industrial automation module converts proximity probe signals into a linear 4-20 mA output, enabling seamless integration with PLCs, DCS, and SCADA systems. Ideal for replacing legacy thrust monitoring solutions, the 991-25-50-02-CN offers enhanced accuracy and reliability. Manufactured in the USA, it features a DIN rail mount and accepts one 3300 NSv proximity probe.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-25-50-02-CN delivers robust performance with the following key parameters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-scale range:\u003c\/strong\u003e 25-0-25 mils (0.6-0-0.6 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput signal:\u003c\/strong\u003e 4-20 mA (two-wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop accuracy:\u003c\/strong\u003e ±1.5% of full scale (typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e +12 to +35 Vdc at transmitter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum loop resistance:\u003c\/strong\u003e 1,000 Ω at 35 Vdc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent limiting:\u003c\/strong\u003e 23 mA typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -35°C to +85°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage temperature:\u003c\/strong\u003e -51°C to +100°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.43 kg (0.9 lbm)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eReal-World Applications\u003c\/h2\u003e\u003cp\u003eThe Bently Nevada 991-25-50-02-CN is essential for axial position and thrust bearing monitoring in turbines, compressors, and large pumps. In a steam turbine upgrade, replacing older displacement transmitters with the 991-25-50-02-CN improves response time and reduces false trips. Its Non-interacting zero and span adjustments simplify calibration during overhaul. For hydroelectric generators, the 991-25-50-02-CN provides reliable thrust pad wear indication, preventing catastrophic failures.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRoutine maintenance of the Bently Nevada 991-25-50-02-CN involves checking loop integrity and verifying output against known probe gaps. The transmitter's Not OK\/Signal Defeat function forces output below 3.6 mA within 100 µs of a fault, alerting operators immediately. With all solid-state components, the 991-25-50-02-CN offers long service life in harsh environments. Storage between -51°C and +100°C ensures readiness for spares.\u003c\/p\u003e\u003ch2\u003eSelection Guide \u0026amp; Buying Advice\u003c\/h2\u003e\u003cp\u003eWhen selecting the Bently Nevada 991-25-50-02-CN, verify that your proximity probe is a 3300 NSv series. The -50 system length option indicates a 5.0-meter cable; confirm this matches your installation. For bulkhead mounting (Option 02), ensure adequate clearance. The CN agency approval indicates country-specific certifications. For reliable supply, visit ubest101 and search for 991-25-50-02-CN to order genuine Bently Nevada parts.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416874152035,"sku":"991-25-50-02-CN","price":269.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-25-50-02-cn-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}