{"product_id":"allen-bradley-1746sc-ini4i-isolated-analog-input-module","title":"Allen-Bradley 1746SC-INI4I Isolated Analog Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746SC-INI4I is a specialized 4-channel isolated analog input module engineered by Spectrum Controls for integration within the Allen-Bradley SLC 500 control platform. This module is specifically designed to handle high-precision measurement tasks in industrial environments where electrical noise, ground loops, or potential signal interference are concerns. By providing full channel-to-channel isolation, the 1746SC-INI4I ensures that individual sensor loops remain independent, preventing cross-talk or fault propagation between channels.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour fully isolated differential input channels for robust signal integrity.\u003c\/li\u003e\n\u003cli\u003e16-bit resolution providing high-granularity data for process monitoring.\u003c\/li\u003e\n\u003cli\u003eSupports both voltage and current signal inputs for flexible sensor connectivity.\u003c\/li\u003e\n\u003cli\u003eSelectable digital filtering to balance between rapid response times and noise rejection.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration into the SLC 500 rack system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is ideal for critical instrumentation tasks, including monitoring pressure, flow, temperature, and level in harsh environments. Its isolation capabilities make it particularly suitable for distributed sensor networks where ground potential differences could otherwise impact measurement accuracy.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSpectrum Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlatform\u003c\/td\u003e\n\u003ctd\u003eSLC 500\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4 (Isolated, Differential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500V DC channel-to-channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpdate Rate\u003c\/td\u003e\n\u003ctd\u003e10 ms per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Impedance\u003c\/td\u003e\n\u003ctd\u003e1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnsure the SLC 500 rack is powered down before inserting or removing the module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is firmly seated into the backplane connector and secured with the chassis screws.\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cabling for all analog inputs to minimize EMI pickup.\u003c\/li\u003e\n\u003cli\u003eEnsure that cable shields are grounded at a single point to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eMaintain proper ventilation in the control cabinet to keep ambient temperatures within the specified operating limits for the SLC 500 system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eDoes this module require external power for the inputs?\u003c\/h3\u003e\u003cp\u003eThe 1746SC-INI4I derives its operational power from the SLC 500 backplane, though sensor loops may require external loop power depending on the specific transmitter type used.\u003c\/p\u003e\u003ch3\u003eCan I mix current and voltage inputs on the same module?\u003c\/h3\u003e\u003cp\u003eYes, the module is designed to support both current and voltage inputs, allowing for versatile configurations across its four channels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44693819752536,"sku":"1746SC-INI4I","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/2039\/0488\/files\/wm_1_2df6c580-8648-4451-a255-107781d8813f.jpg?v=1788289452","url":"https:\/\/www.industriaxplc.com\/id\/products\/allen-bradley-1746sc-ini4i-isolated-analog-input-module","provider":"IndustriaX Limited","version":"1.0","type":"link"}