{"product_id":"bently-nevada-149758-01-non-isolated-i-o-module","title":"Bently Nevada 149758-01 Non-Isolated I\/O Module","description":"\u003ch1\u003eBently Nevada 149758-01 Non-Isolated I\/O Module\u003c\/h1\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 149758-01\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e149758\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNon-Isolated I\/O Module, operates as a dedicated hardware component for external signal termination and routing within the 3500 Machinery Protection System. The module interfaces field wiring from eddy-current proximity sensor circuits and overspeed monitoring channels to associated 3500 rack-based protection and vibration monitoring hardware.\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\u003e149758-01\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\u003eSeries\u003c\/td\u003e\n\u003ctd\u003e3500 Machinery Protection System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eNon-Isolated I\/O Module (External Terminal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eNon-Isolated I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eRack-mounted within 3500 system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eBently Nevada 3500 monitoring systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003e3300 Series eddy-current proximity sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Function\u003c\/td\u003e\n\u003ctd\u003eExternal terminal interface for vibration and overspeed monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Function\u003c\/td\u003e\n\u003ctd\u003eElectronic overspeed monitoring support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Interface\u003c\/td\u003e\n\u003ctd\u003eExternal field termination connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eGap Voltage Validation for Overspeed Monitoring Circuits\u003c\/h3\u003e\n\u003cp\u003eThe 149758-01 supports signal termination paths associated with eddy-current proximity probe monitoring systems. During commissioning, probe circuits are typically verified through gap voltage measurements to confirm correct probe positioning and transducer operation.\u003c\/p\u003e\n\u003cp\u003eFor proximity probe installations used in overspeed protection and shaft monitoring applications, a gap voltage near the specified monitor target value, commonly around -10 VDC depending on probe system configuration, is used as an indication of proper transducer operating range. Final acceptance values must follow the applicable 3300 or 3500 monitoring system documentation.\u003c\/p\u003e\n\u003cp\u003eBecause the module utilizes a non-isolated architecture, grounding practices and shield termination methods should be reviewed carefully to minimize unwanted signal coupling between field circuits.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the 149758-01 provide galvanic isolation between field circuits and the monitoring system?\u003c\/strong\u003e\u003cbr\u003eA: No. The module is identified as a non-isolated I\/O module. Grounding and cable shielding practices should therefore follow the applicable installation requirements for the connected monitoring system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the module operate as a standalone overspeed protection device?\u003c\/strong\u003e\u003cbr\u003eA: No. The module functions as an interface component within a 3500 Machinery Protection System and requires associated monitoring hardware installed in the rack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does the module directly process vibration measurements?\u003c\/strong\u003e\u003cbr\u003eA: No. Signal processing is performed by the associated monitoring modules. The 149758-01 provides field termination and signal routing functions.\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 the module only in the designated 3500 rack location specified by system documentation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify all proximity probe, keyphasor, and overspeed circuit terminations before energizing the rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoute sensor cables separately from power conductors and high-current switching circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTerminate cable shields according to the plant grounding philosophy and Bently Nevada installation practices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInspect terminal tightness and conductor identification before commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify probe gap voltage, channel status, and monitor configuration after field wiring is completed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvoid introducing additional ground paths that could increase common-mode noise on non-isolated signal circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44163873243224,"sku":"149758-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/350065_a3d90a88-65fa-4105-abaa-87d9fe6c71cc.jpg?v=1780306930","url":"https:\/\/www.industriaxplc.com\/products\/bently-nevada-149758-01-non-isolated-i-o-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}