{"product_id":"yokogawa-sai143-s53-a4s00-safety-analog-input-module","title":"Yokogawa SAI143-S53\/A4S00 Safety Analog Input Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SAI143-S53\/A4S00 is a high-integrity analog input module specifically engineered for the Yokogawa Electric Corporation\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eProSafe-RS Safety Instrumented System (SIS)\u003c\/strong\u003e. Unlike standard control modules, this unit is built to comply with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSIL3 safety requirements\u003c\/strong\u003e, providing 16 channels of isolated 4–20 mA inputs for critical monitoring in safety-critical applications.\u003c\/p\u003e\n\u003cp\u003eIt performs continuous self-diagnostics to detect internal failures and abnormal operating conditions, ensuring that safety loops remain operational in hazardous environments. This makes the module ideal for Emergency Shutdown (ESD), Fire \u0026amp; Gas (F\u0026amp;G), and other high-risk protection systems.\u003c\/p\u003e\n\u003cp\u003eThe SAI143-S53\/A4S00 variant features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eISA S71.04 G3 conformal coating\u003c\/strong\u003e, providing enhanced resistance against corrosive atmospheres such as sulfur compounds, salt-laden air, and chemical vapors—making it particularly suitable for offshore and petrochemical installations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Designation\u003c\/td\u003e\n\u003ctd\u003eSAI143-S53\/A4S00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS (SIS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL3 (Certified by TÜV Rheinland)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e16 channels, channel-to-channel and system isolation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003e4–20 mA DC current input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Impedance\u003c\/td\u003e\n\u003ctd\u003e250 Ω (nominal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Input Current\u003c\/td\u003e\n\u003ctd\u003e25 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Accuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of full scale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Refresh Cycle\u003c\/td\u003e\n\u003ctd\u003e40 ms (internal safety processing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Withstand Voltage\u003c\/td\u003e\n\u003ctd\u003e500 V AC (input-to-system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cp\u003eThe SAI143-S53\/A4S00 is widely deployed in industries where functional safety compliance is mandatory and system reliability is critical:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEmergency Shutdown Systems (ESD) on offshore oil platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBurner Management Systems (BMS) for industrial boilers and furnaces\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eToxic and flammable gas detection systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOverpressure protection loops in chemical reactors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSafety monitoring in power generation and petrochemical plants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFAQ \u0026amp; Comparison\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between AAI143 and SAI143?\u003c\/strong\u003e\u003cbr\u003eThe AAI143 is designed for the CENTUM VP Distributed Control System (DCS) for general process control. In contrast, the SAI143-S53\/A4S00 is a dedicated safety module for ProSafe-RS, incorporating advanced diagnostics and SIL3 certification for safety instrumented loops.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module support dual-redundant configurations?\u003c\/strong\u003e\u003cbr\u003eYes. The SAI143-S53\/A4S00 can be installed in redundant pairs within ProSafe-RS safety nodes, increasing system availability while maintaining SIL3 compliance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the S53 suffix signify?\u003c\/strong\u003e\u003cbr\u003eThe “S53” suffix denotes the standard hardware configuration with enhanced G3 conformal coating for operation in harsh industrial environments with high sulfur content or marine exposure.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51851215733048,"sku":"SAI143-S53\/A4S00","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SAI143-S53A4S00.jpg?v=1772675159","url":"https:\/\/www.automodulexpert.com\/products\/yokogawa-sai143-s53-a4s00-safety-analog-input-module","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}