{"product_id":"bently-nevada-3500-42m-shaft-absolute-i-o-module","title":"Bently Nevada 3500\/42M Shaft Absolute I\/O Module","description":"\u003ch1 class=\"PDq2pG_selectionAnchorContainer\"\u003eBently Nevada 3500\/42M Shaft Absolute I\/O Module\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eConfigured for combined vibration signal processing in the 3500 Machinery Protection System, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 3500\/42M 138700-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(\u003cstrong\u003e3500\/42M\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eShaft Absolute I\/O Module) provides direct physical\/electrical execution of multi-sensor fusion between proximity probe displacement signals and seismic transducer velocity\/acceleration inputs.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\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\u003e3500\/42M 138700-01\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +65 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4 independent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Types\u003c\/td\u003e\n\u003ctd\u003eProximity probes + seismic transducers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e4-20 mA, alarm and danger relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEddy Current Scaling and Cross-Sensor Signal Correlation\u003c\/h3\u003e\n\u003cp\u003eThe module implements combined processing of eddy-current probe displacement signals with seismic casing motion inputs to derive shaft absolute vibration. Probe scaling is referenced against proximity transducer linear response characteristics, while seismic inputs are aligned through calibrated velocity or acceleration conversion paths.\u003c\/p\u003e\n\u003cp\u003eCross-channel correlation logic performs synthesis of relative shaft motion and absolute casing movement. This reduces ambiguity in rotor-to-bearing displacement interpretation by separating structural vibration from shaft orbit behavior. Signal integrity is maintained through controlled impedance interfaces between external terminations and internal monitoring channels.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 3500\/42M support hot-swapping during system operation?\u003cbr\u003eA: The module is designed for rack insertion in 3500\/05 systems, but electrical connection state change should follow rack configuration procedures to avoid transient channel invalidation.\u003c\/p\u003e\n\u003cp\u003eQ: How is backplane communication affected when the module is replaced?\u003cbr\u003eA: Channel data is reinitialized through the rack interface module. Temporary data interruption occurs during module enumeration and synchronization.\u003c\/p\u003e\n\u003cp\u003eQ: Can mixed probe types be used simultaneously on all channels?\u003cbr\u003eA: Yes. Each channel supports independent configuration of proximity probes or seismic transducer inputs, subject to system configuration rules.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eInstall only in designated post-power-supply slot positions in the 3500\/05 rack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify external termination wiring separation between probe and seismic input groups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintain shield continuity and single-point grounding for all transducer cable shields\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoute proximity probe cables away from high-current rack backplane wiring paths\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure channel configuration matches installed sensor type before system power-up\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSecure external termination blocks to prevent vibration-induced loosening in cabinet environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44338925863000,"sku":"3500\/42M 138700-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/350042M138700-012.jpg?v=1783326982","url":"https:\/\/www.industriaxplc.com\/ar\/products\/bently-nevada-3500-42m-shaft-absolute-i-o-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}