{"product_id":"thermocouple-mv-analog-input-module-amm25c-yokogawa","title":"Thermocouple\/mV Analog Input Module AMM25C Yokogawa","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe AMM25C (incorporating part number AMM25C) is a specialized high-performance analog input multiplexer engineered for the Yokogawa CENTUM VP and CENTUM CS 3000 Distributed Control Systems (DCS). This module is specifically designed to interface with thermocouples and low-level millivolt (mV) DC signals. Featuring an integrated Reference Junction Compensation (RJC) input port, it provides laboratory-grade temperature measurement accuracy within rugged industrial environments.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannel Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15 isolated input points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Signal Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC Voltage (-10 to 10 V), Millivolt DC (-100 to 100 mV), and Thermocouples\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement Precision\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-fidelity accuracy of ±40 µV for mV inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Stability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSuperior drift control with ±80 µV per 10°C ambient change\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBurnout Detection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eProgrammable sensor-break logic (UP, DOWN, or OFF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCold Junction Compensation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuilt-in RJC connector for thermocouple linearity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Connectivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUtilizes the KS1 system cable for high-speed bus communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully isolated inputs to eliminate ground loops and electromagnetic interference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTerminal block style S1 with secure M4 screw terminations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 cm (H) x 22.9 cm (W) x 7.6 cm (D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOperational Performance\u003c\/h3\u003e\n\u003cp\u003eThe AMM25C serves as a critical data acquisition node for processes where precise thermal tracking is paramount—such as furnace control, chemical reactor monitoring, and glass manufacturing. By multiplexing 15 channels through a high-speed switching matrix, it reduces the physical hardware footprint while maintaining the signal integrity required for mission-critical automation loops. Its robust mechanical design ensures that connections remain secure even in high-vibration environments.\u003c\/p\u003e\n\u003ch3\u003eEngineering FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ\u003c\/strong\u003e: Does the AMM25C require an external RJC sensor for thermocouple measurements?\u003cbr\u003e\u003cstrong\u003eA\u003c\/strong\u003e: The module includes a dedicated RJC input port; however, for accurate compensation, it must be paired with the appropriate Yokogawa terminal board (such as the TEV or similar series) that houses the actual cold-junction sensing element.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":48746755522812,"sku":"AMM25C","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/AMM25C2.jpg?v=1772263127","url":"https:\/\/www.electronicplc.com\/products\/thermocouple-mv-analog-input-module-amm25c-yokogawa","provider":"Electronic PLC","version":"1.0","type":"link"}