{"product_id":"abb-ai843-thermocouple-input-module-8-channel-s800-i-o","title":"ABB AI843 Thermocouple Input Module | 8-Channel S800 I\/O","description":"\u003ch2\u003eABB AI843 Thermocouple\/mV Input Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #2e8b57;\"\u003eABB\u003c\/strong\u003e \u003cstrong\u003eAI843\u003c\/strong\u003e module provides eight differential input channels for thermocouple and millivolt measurements. It features integrated cold junction compensation and supports multiple thermocouple types. This precision module delivers accurate temperature measurements for industrial process applications.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eEight differential input channels\u003c\/span\u003e for thermocouple\/mV signals\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003e16-bit resolution\u003c\/span\u003e for high-precision measurements\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eIntegrated cold junction compensation\u003c\/span\u003e with Pt100 RTD\u003c\/li\u003e\n\u003cli\u003eSupports 11 thermocouple types: B, C, E, J, K, L, N, R, S, T, U\u003c\/li\u003e\n\u003cli\u003eWire-break detection and open-circuit monitoring\u003c\/li\u003e\n\u003cli\u003eSingle or redundant operation capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003eABB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003eAI843\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3BSE028925R1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Channels:\u003c\/strong\u003e 8 differential inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement Ranges:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003e-30 mV to +75 mV linear\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003e16 bits\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Impedance:\u003c\/strong\u003e \u0026gt; 1 MΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003eMax. 0.1% error\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Junction:\u003c\/strong\u003e Separate Pt100 RTD channel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Cable Length:\u003c\/strong\u003e \u003cspan style=\"color: #2e8b57;\"\u003e600 meters or 500 Ω\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThermocouple Support\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e8b57;\"\u003eTypes B, C, E, J, K, L, N, R, S, T, U\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eConfigurable per individual channel\u003c\/li\u003e\n\u003cli\u003eLinear mV range: -30 to +75 mV\u003c\/li\u003e\n\u003cli\u003eCold junction temperature range: -40°C to 100°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCold Junction Compensation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e8b57;\"\u003eDedicated Pt100 RTD channel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e4-wire RTD measurement for accuracy\u003c\/li\u003e\n\u003cli\u003eLocal or remote junction temperature measurement\u003c\/li\u003e\n\u003cli\u003eUser-configurable fixed junction temperature option\u003c\/li\u003e\n\u003cli\u003eAutomatic cold junction error detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eCMRR:\u003c\/span\u003e 100 dB at 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eNMRR:\u003c\/span\u003e \u0026gt;40 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eInput Filter:\u003c\/span\u003e 1.1 kHz bandwidth\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eTemperature Drift:\u003c\/span\u003e 10 ppm\/°C typical, 25 ppm\/°C max\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eUpdate Cycle:\u003c\/span\u003e 320-960 ms (50Hz), 267-800 ms (60Hz)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003e+5V Modulebus:\u003c\/span\u003e 60 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003e+24V Modulebus:\u003c\/span\u003e 50 mA\u003c\/li\u003e\n\u003cli\u003e+24V External: Not required\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003ePower Dissipation:\u003c\/span\u003e 1.5W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostics \u0026amp; Monitoring\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront panel status LEDs (Fault, Run, Warning)\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e8b57;\"\u003eWire-break detection\u003c\/span\u003e on all channels\u003c\/li\u003e\n\u003cli\u003eCold junction channel error monitoring\u003c\/li\u003e\n\u003cli\u003eReference channel limit supervision\u003c\/li\u003e\n\u003cli\u003ePower supply low detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e8b57;\"\u003eOperating Temperature: 0 to +55°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -40 to +70°C\u003c\/li\u003e\n\u003cli\u003eProtection Class: IP20\u003c\/li\u003e\n\u003cli\u003eRelative Humidity: 5 to 95% non-condensing\u003c\/li\u003e\n\u003cli\u003eHazardous Location certifications available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 45 mm (1.77”)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 102 mm (4.01”)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 119 mm (4.7”)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.157 kg (0.35 lbs.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for S800 I\/O platform\u003c\/li\u003e\n\u003cli\u003eWorks with TU818, TU830, TU833 series\u003c\/li\u003e\n\u003cli\u003eCompatible with TU842, TU843 models\u003c\/li\u003e\n\u003cli\u003eKeying code: BA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSecure industrial packaging\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #2e8b57;\"\u003eWorldwide shipping via FedEx, UPS, DHL\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eComplete documentation included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat thermocouple types does the AI843 support?\u003c\/h4\u003e\n\u003cp\u003eThe module supports \u003cspan style=\"color: #2e8b57;\"\u003e11 thermocouple types: B, C, E, J, K, L, N, R, S, T, and U\u003c\/span\u003e.\u003c\/p\u003e\n\u003ch4\u003eHow does cold junction compensation work?\u003c\/h4\u003e\n\u003cp\u003eA \u003cspan style=\"color: #2e8b57;\"\u003eseparate 4-wire Pt100 RTD channel\u003c\/span\u003e provides accurate cold junction temperature measurement.\u003c\/p\u003e\n\u003ch4\u003eWhat is the resolution of the AI843 module?\u003c\/h4\u003e\n\u003cp\u003eIt features \u003cspan style=\"color: #2e8b57;\"\u003e16-bit resolution\u003c\/span\u003e for high-precision temperature measurements.\u003c\/p\u003e\n\u003ch4\u003eDoes the module detect wiring problems?\u003c\/h4\u003e\n\u003cp\u003eYes, it includes \u003cspan style=\"color: #2e8b57;\"\u003ewire-break detection and open-circuit monitoring\u003c\/span\u003e on all channels.\u003c\/p\u003e\n\u003ch4\u003eCan the module operate in redundant configuration?\u003c\/h4\u003e\n\u003cp\u003eYes, the \u003cspan style=\"color: #2e8b57;\"\u003eABB AI843\u003c\/span\u003e supports both single and redundant operation modes.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eCopyright © 2025 AutoNex Controls Limited. All rights reserved.\u003c\/p\u003e\n\u003cp\u003eReference Source: \u003ca href=\"https:\/\/www.autonexcontrol.com\/\"\u003ewww.autonexcontrol.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eContact our sales team for pricing and technical support:\u003c\/p\u003e\n\u003cp\u003eEmail: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePhone: \u003ca href=\"https:\/\/wa.me\/8615392429628\"\u003e+86 153 9242 9628\u003c\/a\u003e (WhatsApp available)\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45296178233505,"sku":"AI843","price":121.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/AI843.jpg?v=1761903900","url":"https:\/\/www.autonexcontrol.com\/th\/products\/abb-ai843-thermocouple-input-module-8-channel-s800-i-o","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}