{"product_id":"amm42t-yokogawa-analog-input-module-new-original-stock","title":"AMM42T Yokogawa Analog Input Module | New \u0026 Original Stock","description":"\u003ch2\u003eYokogawa AMM42T Analog Input Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-density current signal acquisition in CENTUM CS 3000 and CENTUM VP networks, the \u003cstrong\u003eYokogawa AMM42T\u003c\/strong\u003e (\u003cstrong\u003eAMM42T\u003c\/strong\u003e Analog Input Module) provides direct physical\/electrical execution of 16-channel 4-20 mA loop monitoring.\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\u003eAMM42T\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\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e125 x 130 x 25 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\u003e0.4 A (5 V DC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 isolated inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eYokogawa DCS Process Control and Signal Isolation\u003c\/h3\u003e\n\u003cp\u003eThe AMM42T manages 16 independent current input channels, each featuring dedicated channel-to-channel and channel-to-system isolation. This architecture effectively mitigates ground loops and common-mode interference in field instrumentation circuits. As a primary interface for 4-20 mA HART loop protocol signals, the module maintains high signal integrity by employing a 250 Ω shunt resistance per channel, ensuring precise voltage drops for the onboard 12-bit analog-to-digital converters. The module performs continuous input signal monitoring, where diagnostic data is transmitted to the host Field Control Station (FCS) every 10 ms to maintain deterministic process control.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AMM42T support active hot-swapping during system operation?\u003c\/p\u003e\n\u003cp\u003eA: Hot-swapping is supported only if the I\/O rack is configured for dual-redundant operation. When performing a module exchange in a redundant pair, ensure the secondary module is synchronized and active before removing the primary unit to prevent signal loss.\u003c\/p\u003e\n\u003cp\u003eQ: Can this module interface with non-powered field transmitters?\u003c\/p\u003e\n\u003cp\u003eA: The AMM42T is designed to monitor 4-20 mA current loops. If the field transmitter does not provide internal loop power, external 24 V DC power must be supplied in series with the loop to drive the signal through the 250 Ω shunt resistance.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Insertion\u003c\/strong\u003e: Verify the rack slot configuration matches the required redundancy mode. Insert the module into the designated slot, ensuring the backplane connector pins are seated firmly to prevent high-resistance contact points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Shielding\u003c\/strong\u003e: Terminate cable shields at the cabinet ground bar using high-conductivity grounding lugs. Avoid grounding at both ends of the cable to prevent circulating ground currents that could degrade the ±0.1% accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoop Verification\u003c\/strong\u003e: Use a precision current calibrator to inject 4 mA and 20 mA signals at the field terminal block. Validate the scaling within the CENTUM engineering station to ensure the input register reflects the accurate process value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment\u003c\/strong\u003e: Ensure the cabinet ambient temperature remains between 0 deg C and 55 deg C. In dense rack configurations, provide forced-air ventilation to ensure the module internal components do not exceed safe operating temperatures.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":43576281595994,"sku":"AMM42T","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/423_63c3caf6-f39c-4f25-a5ba-f385e75e89a6.jpg?v=1782876510","url":"https:\/\/www.spareoil.com\/products\/amm42t-yokogawa-analog-input-module-new-original-stock","provider":"SpareOil Automation","version":"1.0","type":"link"}