{"product_id":"yokogawa-sai143-s33-prosafe-rs-analog-input-module","title":"Yokogawa SAI143-S33 ProSafe-RS Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eYokogawa SAI143-S33\u003c\/strong\u003e is a high-reliability current input module designed for mounting on the safety node unit and safety control unit within the \u003cstrong\u003eProSafe-RS\u003c\/strong\u003e safety instrumented system. This module plays a critical role in safety functions by inputting 4 to 20 mA signals from field instruments directly into the Safety Control Station (SCS). It supports dual-redundant configurations to achieve enhanced system availability and fault tolerance. The \u003cstrong\u003eSAI143-S33\u003c\/strong\u003e features standard individual channel configuration pins for 2-wire or 4-wire transmitters and provides module isolation for its 16 processing channels.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Redundancy:\u003c\/strong\u003e Supports full dual-redundant configuration to eliminate single points of failure in safety-critical applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Sensor Hookup:\u003c\/strong\u003e Individual channel setting via pins to accommodate both 2-wire and 4-wire field transmitter arrangements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimultaneous Power Management:\u003c\/strong\u003e Built-in transmitter power supply ON\/OFF function across all 16 channels simultaneously, facilitating alarm resets for Fire and Gas devices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Isolation:\u003c\/strong\u003e Delivers module-level galvanic isolation protecting internal system electronics from hazardous field transients.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSafety Instrumented Systems (SIS) \u003c\/li\u003e\n\u003cli\u003eEmergency Shutdown Systems (ESD)\u003c\/li\u003e\n\u003cli\u003eFire and Gas (F\u0026amp;G) System integration and device resetting \u003c\/li\u003e\n\u003cli\u003eProcess industry safety monitoring and critical current loop sourcing \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable style=\"width: 100%; height: 352.688px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 14.1439%; height: 39.1875px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.2878%; height: 39.1875px;\"\u003e\u003cstrong\u003eSuffix Codes\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 67.985%; height: 39.1875px;\"\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 14.1439%; height: 39.1875px;\"\u003e\u003cstrong\u003eSAI143\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.2878%; height: 39.1875px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 67.985%; height: 39.1875px;\"\u003eAnalog Input Module (4 to 20 mA, 16 channels, module isolation) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.1439%; height: 19.5938px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 13.2878%; height: 19.5938px;\"\u003e-S\u003c\/td\u003e\n\u003ctd style=\"width: 67.985%; height: 19.5938px;\"\u003eStandard type \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 14.1439%; height: 19.5938px;\"\u003e \u003c\/td\u003e\n\u003ctd style=\"width: 13.2878%; height: 19.5938px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 67.985%; height: 19.5938px;\"\u003eFor pressure clamp terminal block or MIL cable with no explosion protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 14.1439%; height: 39.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.2878%; height: 39.1875px;\"\u003e3\u003c\/td\u003e\n\u003ctd style=\"width: 67.985%; height: 39.1875px;\"\u003eWith ISA Standard G3 and temperature (-20 to 70 degC) \u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eItem\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYokogawa Electric Corporation \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSAI143-S33 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Input Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 channels, module isolation \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Input Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 to 20 mA \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePermissible Input Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 25 mA \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance (Power-ON)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 Ohm + Voltage drop in the input protection circuit inside the module \/ Current value \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Impedance (Power-OFF)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e500 Ohm minimum \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Voltage Drop\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.45 V (in the input protection circuit) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±16 uA (Input range 1 to 23 mA for Style S3) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eData Update Frequency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 ms \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Drift\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±16 uA\/10 degC \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransmitter Power Supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16.15 V minimum (at 20 mA), 26.4 V maximum (at 0 mA) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mA \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWithstand Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.5 kV AC between input signal and system for 1 minute \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Current Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 V system: 320 mA, 24 V system: 550 mA \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 degC \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnvironmental Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eISA Standard G3 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.34 kg (For pressure clamp terminal block or MIL cable) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W x H x D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32.8 mm x 130 mm x 107.5 mm (For pressure clamp and MIL cable) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Siting:\u003c\/strong\u003e Mount the current input module onto a compatible safety node unit or safety control unit chassis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundancy Setup:\u003c\/strong\u003e When implementing dual-redundant pairs, order an additional tracking module with identical technical specifications but without specific optional suffix accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Isolation Barriers:\u003c\/strong\u003e Do not connect Zener barriers directly to this hardware. Utilize an approved isolation barrier when deploying an intrinsically safe instrumented loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFalse Insertion Prevention:\u003c\/strong\u003e When deploying option \/PRP, utilize the specified matching field signaling cable variant equipped with the corresponding option \/SAI143 to ensure functional physical key alignment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISA Standard G3:\u003c\/strong\u003e Certified for installation within corrosive industrial environments meeting the G3 severity specifications.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52695387537771,"sku":"SAI143-S33","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/yokogawa-sai143-s33-analog-input-module-0qm2q1jxoya_d243d919-79c4-446a-a853-432dc8aee39e.jpg?v=1766132816","url":"https:\/\/www.plcprotech.com\/products\/yokogawa-sai143-s33-prosafe-rs-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}