{"product_id":"ast143-yokogawa-tc-mv-input-module","title":"AST143 Yokogawa TC\/mV Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa AST143 is a high-density Thermocouple (TC) and Millivolt (mV) Input Module designed for the CENTUM VP Field Integrated Operation (FIO) system. It provides 16 channels for accurate acquisition of temperature signals from a wide range of thermocouples and millivolt inputs. This module is widely used in critical applications such as power generation, oil \u0026amp; gas, and heavy industry, where precise temperature monitoring is essential. Supplied as 100% brand new, original factory equipment, the AST143 ensures high measurement accuracy, stability, and seamless integration into Yokogawa DCS environments.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Types\u003c\/td\u003e\n\u003ctd\u003eThermocouple (TC), Millivolt (mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Ranges\u003c\/td\u003e\n\u003ctd\u003eTC: -200 to 1500°CRTD: -200 to 800°CThermistor: -50 to 150°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.2% of span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Update Period\u003c\/td\u003e\n\u003ctd\u003e10 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V AC (between circuits and channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 1 MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold Junction Compensation\u003c\/td\u003e\n\u003ctd\u003e±1°C accuracy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e120 mm × 100 mm × 39 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.30 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003e100% Brand New Original\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Data Processing\u003c\/strong\u003e\u003cbr\u003eWith a 10 ms update cycle, the module delivers fast and responsive temperature data acquisition, enabling immediate control actions in dynamic processes such as turbines and reactors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Signal Isolation\u003c\/strong\u003e\u003cbr\u003eEach channel features 1500 V AC isolation, preventing electrical interference and ground loops, ensuring stable and accurate readings across all inputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Cold Junction Compensation\u003c\/strong\u003e\u003cbr\u003eBuilt-in compensation with ±1°C accuracy eliminates the need for external compensation devices, simplifying installation and reducing system complexity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-Sensor Versatility\u003c\/strong\u003e\u003cbr\u003eSupports thermocouples, RTDs, and thermistors, allowing engineers to standardize temperature measurement across diverse applications using a single module type.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the AST143 support HART communication?\u003c\/strong\u003e\u003cbr\u003eYes, it supports HART communication, enabling remote diagnostics and configuration of compatible intelligent field transmitters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the module handle a broken thermocouple wire?\u003c\/strong\u003e\u003cbr\u003eIt includes burnout detection. If a sensor fails, the module forces the output to a predefined up-scale or down-scale value and triggers an alarm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the AST143 compatible with different thermocouple types?\u003c\/strong\u003e\u003cbr\u003eYes, it supports common thermocouple types such as J, K, E, T, R, S, and B. Each channel can be individually configured via Yokogawa engineering tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the module be replaced without shutting down the system?\u003c\/strong\u003e\u003cbr\u003eYes, the AST143 supports hot-swapping in FIO nests, allowing replacement without powering down the system, subject to node configuration and redundancy rules.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":52012416827704,"sku":"AST143","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/AST143-S001.jpg?v=1762504790","url":"https:\/\/www.automodulexpert.com\/products\/ast143-yokogawa-tc-mv-input-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}