{"product_id":"bently-nevada-125489-01-3500-series-isolated-4-20ma-i-o-module","title":"Bently Nevada 125489-01 3500 Series Isolated 4-20mA I\/O Module","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\u003efunctions as a high-performance Isolated 4-20mA I\/O Module designed for the 3500 Machinery Protection System. This module bridges the gap between raw machine data and external control systems (DCS\/PLC) by providing ultra-stable, linear analog outputs. It features internal terminations to simplify cabinet wiring and reduce the need for external terminal blocks. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eequipment, ensuring your safety-critical data transmissions remain accurate and immune to ground loop interference.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe 125489-01 maintains high precision across extreme industrial operating envelopes:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBently Nevada (Baker Hughes)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e125489-01\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIsolated 4-20 mA I\/O with Internal Terminations\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eStandard 4 to 20 mA (Linear)\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\u003e1500 V RMS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTransient Immunity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 10 kV\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.25% of full scale (Typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRepeatability\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.1% of full scale\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\u003e-40°C to +70°C (-40°F to +158°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 x 11.2 x 24.2 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\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\u003eSuperior Galvanic Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 125489-01 provides 1500 V RMS isolation between the field-side signals and the internal 3500 rack backplane. This electrical barrier eliminates ground loops and prevents high-voltage transients from damaging sensitive processing cards, ensuring system-wide uptime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInternal Termination Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module incorporates internal terminations, allowing direct wire-to-module connections. This design eliminates the footprint required for external termination assemblies, effectively reducing cabinet congestion and shortening installation time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eExtreme Transient Resilience:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIntegrated surge protection circuitry withstands transients up to 10 kV. This hardware hardening safeguards the I\/O loop against lightning strikes or sudden power surges in industrial grids, protecting your investment in remote processing hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Signal Linearity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module maintains a typical accuracy of ±0.25%. This ensures that the vibration or thrust levels reported to the DCS exactly match the actual machinery state, allowing operators to make informed decisions based on high-fidelity data.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Mounting Flexibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe compact form factor supports both DIN rail and panel mount configurations. This versatility enables engineers to integrate the 125489-01 into existing control cabinets or specialized remote enclosures without custom mounting hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 125489-01 require external termination blocks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 125489-01 features built-in internal terminations. You land your field wires directly on the module’s connectors, which simplifies the wiring path and reduces the total number of failure points in the signal loop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this module handle ground loop noise?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1500 V RMS isolation creates a complete electrical break between the input and output stages. This break stops circulating currents caused by potential differences between ground points, resulting in a clean, noise-free 4-20mA signal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module in unheated outdoor enclosures?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The 125489-01 operates reliably down to -40°C. Its wide thermal range makes it suitable for oil and gas applications in arctic environments or high-heat desert locations without requiring specialized climate control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is \"Brand New\" status critical for the 125489-01?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIsolation components and capacitors degrade over time. Only a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBrand New Original\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e125489-01 guarantees the full 10 kV transient immunity and 1500 V RMS isolation ratings. Using refurbished I\/O modules risks signal drift and potential safety system failures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":53450761896120,"sku":"125489-01","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/125489-01.jpg?v=1778318813","url":"https:\/\/www.globalpetroparts.com\/products\/bently-nevada-125489-01-3500-series-isolated-4-20ma-i-o-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}