{"product_id":"yokogawa-amm25t-analog-input-multiplexer-module","title":"Yokogawa AMM25T Analog Input Multiplexer Module","description":"\u003cp\u003eConfigured for multi-channel signal consolidation in CENTUM VP and CENTUM CS automation architectures, the \u003cstrong\u003eYokogawa AMM25T\u003c\/strong\u003e (\u003cstrong\u003eAMM25T\u003c\/strong\u003e Analog Input Multiplexer Module) provides direct physical\/electrical execution of high-precision measurement for industrial instrumentation.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAMM25T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSystem dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e45 mm x 97 mm x 103 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eProvided via I\/O baseplate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Capacity\u003c\/td\u003e\n\u003ctd\u003e8 Channels (4-20 mA \/ mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Instrumentation Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART loop protocol:\u003c\/strong\u003e The module architecture manages standard process current loops, facilitating the reliable acquisition of sensor data while maintaining compatibility with legacy analog instrumentation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA connectivity:\u003c\/strong\u003e The multiplexer integrates into the Yokogawa control fabric, ensuring that consolidated field signals are correctly formatted for high-speed transmission across the DCS network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-channel isolation:\u003c\/strong\u003e Each input channel is protected by channel-to-bus galvanic isolation barriers, preventing ground loop interference and protecting the backplane from common-mode electrical noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold junction compensation (CJC):\u003c\/strong\u003e Internal thermal management circuitry ensures measurement stability and precision when interfacing with low-level millivolt signals typical of temperature transmitters and thermocouple loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AMM25T support hot-swapping?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module is designed for hot-swapping on standard Yokogawa I\/O baseplates. Ensure the DCS application is configured to force the input channels to a fail-safe state prior to module removal to prevent downstream control disturbances.\u003c\/p\u003e\n\u003cp\u003eQ: Can the module handle both current and voltage inputs simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module is engineered to accept both 4-20 mA and millivolt input types; refer to the DCS engineering station software to verify channel-level configuration and scaling parameters.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Seat the AMM25T firmly into the designated I\/O baseplate slot. Ensure the module locking mechanism is engaged to maintain constant electrical contact with the backplane communication and power rails.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Connect the I\/O baseplate chassis to the cabinet’s instrument earth bus. A low-impedance ground connection is mandatory to ensure the efficacy of the channel-to-bus isolation and to protect the internal circuitry from electrostatic discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Terminate field wiring for transmitters at the baseplate terminal blocks. Maintain at least 150 mm of separation between analog input loops and high-power AC cabling to mitigate inductive interference and maintain measurement accuracy within the ±0.1 % FS rating.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45213751214195,"sku":"AMM25T","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-07-10_17-00-44_972705c2-0ff5-4636-ab80-76952269ff1d.png?v=1783676904","url":"https:\/\/www.dcssupplier.com\/ar\/products\/yokogawa-amm25t-analog-input-multiplexer-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}