{"product_id":"yokogawa-ast143-s00-input-module","title":"Yokogawa AST143-S00 Input Module","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa AST143-s00\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eAST143\u003c\/strong\u003e Analog Input Module, operates as a dedicated hardware component for localized temperature sensor signal conditioning and high-density data acquisition within process control networks. Configured to interface with up to 16 independent sensors, this rack-mounted device provides direct physical\/electrical execution by digitizing microvolt-level inputs from field transducers and modulating standard process variables.\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.30 kg (0.66 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e120 x 100 x 39 mm\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 Supply\u003c\/td\u003e\n\u003ctd\u003e24 VDC +\/- 10% nominal input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption\u003c\/td\u003e\n\u003ctd\u003e150 mA at 5 V DC (Internal), 80 mA at 24 V DC (External)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e16 independent channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Input Types\u003c\/td\u003e\n\u003ctd\u003eThermocouple (TC), Millivolt (mV), RTD, Thermistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input 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\u003ePrimary Output Signal\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA analog replication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCore Measurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 0.2% of span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference Junction Accuracy\u003c\/td\u003e\n\u003ctd\u003e+\/- 1 deg C internal compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003eAt least 1 Mohm\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\u003eTemperature Drift Rates\u003c\/td\u003e\n\u003ctd\u003eTC: +\/- 125 uV per 10 deg C shift \/ mV: +\/- 250 uV per 10 deg C shift\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital Protocol\u003c\/td\u003e\n\u003ctd\u003eIntegrated HART protocol digital communication\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation Barrier\u003c\/td\u003e\n\u003ctd\u003e1500 V AC between logic circuits and channels, for 1 minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Cold Junction Compensation\u003c\/h3\u003e\n\u003cp\u003eThe AST143-s00 modulates digital instrument parameters straight onto its analog current outputs using the integrated 4-20 mA HART loop protocol, enabling concurrent execution of secondary variable tracking and sensor calibration commands over standard field wires. To safeguard data tracking integrity when managing low-voltage sensor elements, the board relies on a cold junction compensation (CJC) circuit calibrated to a precise +\/- 1 deg C thermal baseline boundary. Millivolt inputs run directly through individual, high-impedance filtering networks and a built-in isolated barrier array that maintains a 1500 V AC dielectric threshold between channels, preventing ground loop potential variances or high-voltage inductive spikes from shifting the core digital-to-analog conversion tracking metrics.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the AST143-s00 maintain input measurement accuracy across long thermocouple lines exposed to high ambient temperature variations?\u003c\/p\u003e\n\u003cp\u003eA: The module relies on its integrated cold junction compensation circuit paired with low thermal drift coefficients (+\/- 125 uV per 10 deg C shift for TC lines). This layout continuously recalibrates the thermocouple millivolt offset relative to real-time termination block temperatures.\u003c\/p\u003e\n\u003cp\u003eQ: Can the AST143-s00 module update its 16 signal channels concurrently without increasing system scanning loop latency?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the onboard hardware uses parallel conversion stages to achieve a fixed 10 ms data update period across all 16 channels. This configuration minimizes processing delays, exporting updated temperature variables straight to the backplane registers within a uniform cycle.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":45054358159475,"sku":"AST143-S00","price":233.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-15_11-25-24_f38dbffe-4b38-4604-a43d-d1dfe569b4cc.png?v=1780019696","url":"https:\/\/www.dcssupplier.com\/products\/yokogawa-ast143-s00-input-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}