{"product_id":"yokogawa-ast143-s00-tc-mv-input-module","title":"Yokogawa AST143-S00 TC\/mV Input Module","description":"\u003cp\u003eConfigured for high-accuracy thermocouple and millivolt signal measurement in Yokogawa DCS systems, the \u003cstrong\u003eYokogawa AST143-S00\u003c\/strong\u003e (\u003cstrong\u003eAST143\u003c\/strong\u003e TC\/mV Input Module) provides direct physical\/electrical execution. It processes up to 16 input channels and transmits conditioned data across the system backplane with minimal propagation delay.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe base module designation \u003cstrong\u003eAST143\u003c\/strong\u003e defines the 16-channel thermocouple and millivolt input processing hardware architecture. The \u003cstrong\u003e-S00\u003c\/strong\u003e suffix specifies the standard hardware option set, incorporating built-in isolation and standard system integration features without custom barrier modifications.\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\u003eAST143-S00\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 \/ Singapore\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\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e120 mm x 100 mm x 39 mm (W x H x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e150 mA at 5 VDC, 80 mA at 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal Types\u003c\/td\u003e\n\u003ctd\u003eThermocouple (TC), Millivolt (mV)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Ranges\u003c\/td\u003e\n\u003ctd\u003eTC: -200 to 1500 deg C; RTD: -200 to 800 deg C; Thermistor: -50 to 150 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e+\/-0.2% of span; TC: +\/-40 uV, mV: +\/-80 uV at 23 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Protocol\u003c\/td\u003e\n\u003ctd\u003eHART\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC +\/-10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;= 1 Mohm (Power ON\/OFF)\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\u003eWithstanding Voltage\u003c\/td\u003e\n\u003ctd\u003e1500 VAC between circuits and channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDCS Signal Integrity \u0026amp; Process Control Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART Loop Protocol Execution:\u003c\/strong\u003e Supports bidirectional HART digital communication layered over standard 4-20 mA output loops for remote device configuration and diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-Channel Electrical Isolation:\u003c\/strong\u003e Features an integrated isolated barrier rated for 1500 VAC withstanding voltage between circuits and individual channels to eliminate common-mode ground loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Junction Compensation (CJC):\u003c\/strong\u003e Utilizes integrated reference junction compensation with +\/-1 deg C accuracy to ensure accurate thermocouple voltage conversion across ambient thermal variations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Can the AST143-S00 module be inserted or removed while the 24 VDC field supply remains active?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The hardware design allows live insertion and removal from the backplane, provided that field wiring circuits adhere to localized hazardous area safety precautions.\u003c\/p\u003e\n\u003cp\u003eQ: What is the input impedance behavior of the module when backplane power is removed?\u003c\/p\u003e\n\u003cp\u003eA: The input resistance remains \u0026gt;= 1 Mohm in both Power ON and Power OFF states, preventing loading effects on active field measurement loops.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the AST143-S00 securely into the designated slot on the field control station baseplate, ensuring the locking mechanism fully engages. Route thermocouple extension wires and millivolt signal leads separately from high-voltage AC cables to prevent electromagnetic coupling. Connect signal cable shielding to a single dedicated functional earth point. Verify that the ambient operating temperature inside the cabinet remains within -20 to 70 deg C to maintain measurement drift within the specified limits.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":48545106526398,"sku":"AST143-S00","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-15_17-41-27_ea80c6fb-a9e3-4ee7-9bb4-f90b00012d50.png?v=1785986601","url":"https:\/\/www.autooiltech.com\/ar\/products\/yokogawa-ast143-s00-tc-mv-input-module","provider":"AutoOilTech Limited","version":"1.0","type":"link"}