{"product_id":"bently-nevada-3500-42m-138708-01-shaft-absolute-i-o-module","title":"Bently Nevada 3500\/42M 138708-01 Shaft Absolute I\/O Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/42M (Part Number 138708-01)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-precision Shaft Absolute I\/O module designed for integration within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500 Machinery Protection System\u003c\/strong\u003e. This module interfaces with absolute shaft encoders to deliver precise, non-incremental angular position data, enabling accurate monitoring of rotating machinery behavior.\u003c\/p\u003e\n\u003cp\u003eThe module features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003einternal terminations\u003c\/strong\u003e, simplifying wiring requirements while improving signal integrity in demanding industrial environments. By continuously tracking the shaft’s absolute angular position, it provides highly accurate data for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ephase reference measurements and advanced vibration analysis\u003c\/strong\u003e. This capability is essential for condition monitoring, diagnostics, and predictive maintenance strategies used in critical rotating equipment.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eShaft Absolute Input I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e3500\/42M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e138708-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTermination Style\u003c\/td\u003e\n\u003ctd\u003eInternal Terminations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Capacity\u003c\/td\u003e\n\u003ctd\u003e4 channels for absolute encoder inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Precision\u003c\/td\u003e\n\u003ctd\u003eContinuous absolute angular position tracking\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Dimensions\u003c\/td\u003e\n\u003ctd\u003e2.5 cm × 11.2 cm × 24.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Weight\u003c\/td\u003e\n\u003ctd\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"selectTdClass\"\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd class=\"selectTdClass\"\u003eBently Nevada 3500 Series Rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eApplication Environment\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/42M 138708-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis commonly deployed in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecritical asset protection systems\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor large rotating machinery, including steam turbines, gas compressors, and high-speed gearboxes. In these applications, accurate real-time shaft positioning is essential for phase analysis, rotor dynamics evaluation, and machine protection.\u003c\/p\u003e\n\u003cp\u003eThe module is engineered for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econtinuous 24\/7 operation in harsh industrial environments\u003c\/strong\u003e, ensuring reliable data acquisition and long-term stability within turbine monitoring and vibration protection systems.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the 3500\/42M differ from a standard proximity probe module?\u003c\/strong\u003e\u003cbr\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/42M\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprocesses\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eabsolute angular position data from shaft encoders\u003c\/strong\u003e, while standard proximity probe modules measure\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eshaft displacement or relative vibration\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eusing eddy-current probes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require external terminal blocks?\u003c\/strong\u003e\u003cbr\u003eNo. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e138708-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003evariant features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003einternal terminations\u003c\/strong\u003e, which eliminates the need for additional external terminal blocks and simplifies installation.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":48746736124156,"sku":"3500\/42M 138708-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/350042M_138708-012.jpg?v=1773126953","url":"https:\/\/www.electronicplc.com\/products\/bently-nevada-3500-42m-138708-01-shaft-absolute-i-o-module","provider":"Electronic PLC","version":"1.0","type":"link"}