{"product_id":"allen-bradley-1746-nt8-thermocouple-module","title":"Allen-Bradley 1746-NT8 SLC 500 8-Point Thermocouple\/mV Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Allen-Bradley 1746-NT8 is a specialized analog input module designed for the SLC 500 programmable controller platform. This module features 8 differential input channels, specifically engineered to interface with thermocouple sensors or millivolt signals. It provides high-precision data acquisition for temperature control and monitoring applications within industrial automation environments.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e8 isolated differential input channels.\u003c\/li\u003e\n\u003cli\u003eCompatibility with a wide range of thermocouple types (J, K, T, E, R, S, B, N) and millivolt input ranges.\u003c\/li\u003e\n\u003cli\u003eIntegrated cold junction compensation for thermocouple accuracy.\u003c\/li\u003e\n\u003cli\u003eDirect integration into the SLC 500 I\/O chassis for seamless communication with the CPU.\u003c\/li\u003e\n\u003cli\u003eSoftware-configurable input types and data formats.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eThis module is widely utilized in industrial processes requiring precise temperature monitoring, including heat treatment furnaces, chemical reactors, environmental chambers, and plastic extrusion machinery. Its ability to process low-level millivolt signals makes it suitable for various laboratory and process instrumentation sensors.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003e1746-NT8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eAnalog Thermocouple \/ mV Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e8 Differential\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\u003eInput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e24 VDC (Backplane Powered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUnited States\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 chassis power is disconnected before installing or removing the module.\u003c\/li\u003e\n\u003cli\u003eUse shielded twisted-pair cabling for all thermocouple and millivolt sensor connections to minimize electromagnetic interference (EMI).\u003c\/li\u003e\n\u003cli\u003eGround the cable shields at one end only to prevent ground loops.\u003c\/li\u003e\n\u003cli\u003eVerify that the module is firmly seated in the chassis slot and secured with the retaining screws.\u003c\/li\u003e\n\u003cli\u003eKeep signal wiring separated from high-voltage power lines and motor control cables.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs the 1746-NT8 a digital input module?\u003c\/strong\u003e\u003cbr\u003eNo, despite some legacy documentation labels, the 1746-NT8 is an analog input module designed for thermocouple and millivolt signals, not discrete digital inputs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this module require external power?\u003c\/strong\u003e\u003cbr\u003eThe module is powered via the SLC 500 backplane; however, ensure your chassis power supply has sufficient capacity for the total I\/O load.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44009559621722,"sku":"1746-NT8","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_a76054ae-4a6f-4112-bbe6-dd31b70c704f.jpg?v=1788492979","url":"https:\/\/www.spareoil.com\/ar\/products\/allen-bradley-1746-nt8-thermocouple-module","provider":"SpareOil Automation","version":"1.0","type":"link"}