{"product_id":"125489-01-bently-nevada-3500-42m-i-o-module-internal-barriers","title":"125489-01 Bently Nevada 3500\/42M I\/O Module Internal Barriers","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBently Nevada 125489-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance I\/O module designed specifically for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/42M Proximitor Seismic Monitor\u003c\/strong\u003e. It functions as the primary interface for field wiring, connecting proximity probes and seismic transducers directly to the 3500 machinery protection rack. This specific variant incorporates\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003einternal intrinsic safety barriers\u003c\/strong\u003e, eliminating the need for external barrier hardware when deploying sensors in hazardous areas. We offer this component as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, ensuring full compliance with factory safety specifications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAssociated Monitor\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3500\/42M Proximitor Seismic Monitor\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Independent Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSafety Logic\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated Internal Barriers (Intrinsically Safe)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRelay Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 Relay Outputs (Form C \/ SPDT)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eContact Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 A @ 24 V DC or 120 V AC (Resistive)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 V continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to +65°C (32°F to 150°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.45 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCE, CSA, UL, ATEX, IECEx\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Intrinsic Safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 125489-01 utilizes built-in barriers to limit the energy sent to field transducers. This design prevents ignition in explosive atmospheres (Zone 0\/1 or Class I, Div 1) and significantly reduces the footprint within the control cabinet by removing external barrier rails.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Fault Tolerance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports \"Alert\" and \"Danger\" alarm levels across four channels. When configured in the 3500 rack, it facilitates hardware voting logic and redundancy, ensuring that a single component failure does not trigger a false machinery trip.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Field Wiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLarge terminal blocks accommodate field-side connections for Proximitor sensors and Velomitor transducers. This layout speeds up installation and provides clear access for loop testing and troubleshooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConditioned Signal Stability:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module maintains high signal-to-noise ratios over long cable runs. It shields the delicate millivolt signals of seismic sensors from the high-frequency interference common in power generation and petrochemical environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use the 125489-01 with a standard 3500\/42 (non-M) monitor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. Bently Nevada specifically engineered the 125489-01 for the 3500\/42M (M-series) Proximitor Seismic Monitor. Always match your I\/O module to the specific monitor hardware revision to ensure correct backplane communication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to buy separate barriers if I use this module in a hazardous zone?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. This module contains internal \"Internal Barriers.\" It provides the necessary energy limiting for intrinsic safety directly at the I\/O terminals. However, you must ensure your field devices and wiring installation follow the approved \"Control Drawing\" for the 3500 system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the Form C relay outputs on this I\/O module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Form C (SPDT) relays provide both Normally Open (NO) and Normally Closed (NC) contacts. This allows you to configure the module for \"De-energize to Trip\" or \"Energize to Trip\" logic, giving you maximum flexibility for safety-instrumented systems (SIS) and interlock loops.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":44177238851683,"sku":"125489-01","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/371._1637fc5e-a028-4226-abdd-2d8ac646334c.jpg?v=1778653663","url":"https:\/\/www.autocontrolglobal.com\/products\/125489-01-bently-nevada-3500-42m-i-o-module-internal-barriers","provider":"AutoControl Global","version":"1.0","type":"link"}