{"product_id":"bently-nevada-991-25-70-02-cn-probe-vibration-transmitter","title":"Bently Nevada 991-25-70-02-CN Probe Vibration Transmitter","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eUpgrade your thrust monitoring systems with the Bently Nevada 991-25-70-02-CN Probe Vibration Transmitter. This modern unit replaces older, less reliable transmitters, offering enhanced accuracy and robustness for axial position measurement. Designed for DIN rail mounting and accepting a 3300 NSv proximity probe, the 991-25-70-02-CN delivers a 4-20 mA output proportional to thrust. Its precise linear range and advanced signal handling ensure dependable operation in demanding environments.\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\u003e25-0-25 mils\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Length\u003c\/td\u003e\n\u003ctd\u003e7.0 meters (23.0 feet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Option\u003c\/td\u003e\n\u003ctd\u003eBulkhead screws\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eDIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e+12 to +35 Vdc at transmitter terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLinear Range (Prox Out)\u003c\/td\u003e\n\u003ctd\u003e0.25 to 1.65 mm\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\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003e1 non-contacting 3300 NSv Proximity Probe and extension cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4-20 mA Loop Accuracy\u003c\/td\u003e\n\u003ctd\u003eWithin ±1.5% of specified 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 ohms 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\u003eNot OK\/Signal Defeat\u003c\/td\u003e\n\u003ctd\u003eOutput \u0026lt;3.6 mA within 100 µs; restores within 0.1 s after condition clears\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 991-25-70-02-CN is ideal for measuring axial thrust in rotating machinery, including compressors, steam turbines, gas turbines, and large pumps. Its 25-0-25 mils full-scale range suits typical thrust bearing clearances. The 4-20 mA output integrates directly with PLCs, DCS, and condition monitoring systems. Replacing older transmitters with this model upgrades system reliability and reduces unplanned downtime.\u003c\/p\u003e\u003ch2\u003eInstallation and Setup\u003c\/h2\u003e\u003cp\u003eMount the 991-25-70-02-CN on a standard DIN rail using the bulkhead screws (mounting option 02). Connect a single 3300 NSv proximity probe and extension cable to the transmitter input. Wire the 2-wire 4-20 mA loop to the control system, ensuring the supply voltage remains between +12 and +35 Vdc at the transmitter terminals. Adjust zero and span via the non-interacting external pots as needed. The Not OK signal defeat ensures fail-safe output under fault conditions.\u003c\/p\u003e\u003ch2\u003eMaintenance and Reliability\u003c\/h2\u003e\u003cp\u003eThis solid-state transmitter requires minimal routine maintenance. Periodically inspect the probe and cable for damage, and verify supply voltage at the terminals. The wide operating temperature range (-35°C to +85°C) and robust construction make it suitable for harsh industrial environments. With no moving parts and built-in current limiting, the 991-25-70-02-CN provides long service life, reducing total cost of ownership compared to older designs.\u003c\/p\u003e\u003ch2\u003eSelection Guide\u003c\/h2\u003e\u003cp\u003eWhen ordering, specify part number 991-25-70-02-CN for the exact configuration described. Ensure compatibility with your existing 3300 NSv probe system. For reliable supply of this and other Bently Nevada spare parts, trust ubest101 as your industrial automation partner.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default","offer_id":44416927072355,"sku":"991-25-70-02-CN","price":255.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/991-25-70-01-CN_02fae57d-1d7e-4f41-8f8b-d2a6ccd171d7.jpg?v=1785255773","url":"https:\/\/www.plcsourcepro.com\/products\/bently-nevada-991-25-70-02-cn-probe-vibration-transmitter","provider":"PLC Source PRO","version":"1.0","type":"link"}