{"product_id":"amm21t-yokogawa-centum-thermocouple-input-module","title":"AMM21T | Yokogawa CENTUM Thermocouple Input Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AMM21T\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-precision thermocouple input module designed for the CENTUM distributed control system (DCS) architecture. This module interfaces directly with a wide array of industrial thermocouples to provide accurate temperature monitoring across an expansive range of -200°C to +1800°C. It converts low-millivolt sensor signals into standard 4-20 mA outputs for the control station's logic processing. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand original, ensuring factory-sealed integrity for critical thermal management applications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe AMM21T provides industry-leading measurement sensitivity and robust signal conversion parameters:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermocouple Compatibility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTypes J, K, T, E, R, S, B, N\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-200°C to +1800°C (Sensor dependent)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt; 100 MΩ\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommon Mode Rejection Ratio (CMRR):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u0026gt; 60 dB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOutput Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0 to 20 mA or 4 to 20 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurement Accuracy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e±0.25% of full scale\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eResponse Time:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e≤ 2 s\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Consumption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e≤ 10 W\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-20°C to +60°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e-40°C to +70°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Humidity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0 to 95% RH (Non-condensing)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100% Brand New and Original\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe AMM21T solves specific technical challenges encountered in high-temperature process environments:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Sensor Interfacing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis module accepts eight different thermocouple types (J through N). This versatility eliminates the need to stock multiple specialized modules, significantly simplifying spare parts inventory and allowing for heterogeneous sensor arrays on a single I\/O rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSuperior Noise Suppression:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith a Common Mode Rejection Ratio exceeding 60 dB and high input impedance, the AMM21T effectively filters out electromagnetic interference (EMI). This ensures stable temperature readings even when thermocouple wires run parallel to high-voltage power lines or heavy motor machinery.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Precision Signal Linearization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module's internal circuitry achieves an output accuracy of ±0.25%. This precision allows for tighter control over temperature-sensitive reactions in chemical and pharmaceutical processing, reducing waste and improving product consistency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Environmental Adaptation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAn operating temperature range of -20°C to +60°C permits installation in field-mounted cabinets without the immediate need for supplemental cooling or heating units. The 0-95% humidity tolerance safeguards the internal logic against moisture-induced corrosion in humid plant environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhich thermocouple type provides the best results with the AMM21T?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe module maintains high accuracy across all supported types. However, you must match the thermocouple type to your specific process temperature. For instance, Type K offers excellent general-purpose range, while Type B or S handles extreme temperatures up to 1800°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the high input impedance benefit the system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u0026gt;100 MΩ input impedance ensures that the AMM21T does not \"load\" the thermocouple circuit. This prevents voltage drops across the lead wires, maintaining the integrity of the millivolt signal over long cable runs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs external cold-junction compensation (CJC) required?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AMM21T typically utilizes internal CJC when paired with the correct Yokogawa terminal board. This simplifies wiring by allowing you to terminate thermocouple extension wires directly at the module's interface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the AMM21T detect a broken sensor wire?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The module incorporates burnout detection logic. If a thermocouple wire breaks, the module drives the output signal to a pre-defined \"upscale\" or \"downscale\" value, immediately alerting the DCS operator to the hardware fault.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52566505226549,"sku":"AMM21T","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/AMM21T.jpg?v=1776146747","url":"https:\/\/www.5gplc.com\/products\/amm21t-yokogawa-centum-thermocouple-input-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}