{"product_id":"allen-bradley-1794-cjc2-flex-i-o-cold-junction-compensator-kit","title":"Allen-Bradley 1794-CJC2 Flex I\/O Cold Junction Compensator Kit","description":"\u003ch2\u003eAllen-Bradley 1794-CJC2 Flex I\/O Cold Junction Compensator Kit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1794-CJC2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1794-CJC2\u003c\/strong\u003e Flex I\/O CJC Kit, operates as a dedicated hardware component for thermocouple signal compensation within the Flex I\/O 1794 temperature input module system.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe 1794-CJC2 is a fixed catalog number within the Allen-Bradley Flex I\/O accessory family. Available documentation identifies the complete model designation as 1794-CJC2 with a cold junction compensator kit configuration containing two thermistor sensors. No additional suffix or option matrix is specified in the available technical data.\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\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\u003c\/td\u003e\n\u003ctd\u003e1794-CJC2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eCJC Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Line\u003c\/td\u003e\n\u003ctd\u003eFlex I\/O 1794\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eCold Junction Compensation for thermocouple input modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity per Kit\u003c\/td\u003e\n\u003ctd\u003e2 sensors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired per Module\u003c\/td\u003e\n\u003ctd\u003e1 kit per module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible I\/O Families\u003c\/td\u003e\n\u003ctd\u003e1794 FLEX, FLEX EX, FLEX XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Module Types\u003c\/td\u003e\n\u003ctd\u003eThermocouple input modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Technology\u003c\/td\u003e\n\u003ctd\u003eThermistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Style\u003c\/td\u003e\n\u003ctd\u003eTerminal base installation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Orientation\u003c\/td\u003e\n\u003ctd\u003eDIN rail mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical Connection\u003c\/td\u003e\n\u003ctd\u003eVia terminal base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIngress Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.04 lbs\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\u003ePassive temperature compensation accessory, supplied through terminal base connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eCold Junction Compensation and Channel Signal Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe 1794-CJC2 provides thermistor-based cold junction compensation for compatible Flex I\/O thermocouple input modules. The accessory measures terminal temperature conditions through the terminal base connection, allowing the input module to apply compensation calculations to thermocouple measurements.\u003c\/p\u003e\n\u003cp\u003eThe kit supports thermocouple signal processing applications across 1794 FLEX, FLEX EX, and FLEX XT I\/O families. Correct installation maintains the reference temperature point required for thermocouple measurement conversion.\u003c\/p\u003e\n\u003cp\u003eThe DIN rail mounted terminal base configuration supports integration within Flex I\/O modular assemblies while maintaining the physical connection between the compensation sensor and the temperature input channel.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many sensors are included in one 1794-CJC2 kit?\u003cbr\u003eA: Each kit contains two thermistor sensors.\u003c\/p\u003e\n\u003cp\u003eQ: Which input modules require the 1794-CJC2 accessory?\u003cbr\u003eA: The accessory is specified for use with compatible Flex I\/O thermocouple input modules requiring cold junction compensation.\u003c\/p\u003e\n\u003cp\u003eQ: How is the 1794-CJC2 electrically connected?\u003cbr\u003eA: The kit connects through the terminal base of the compatible Flex I\/O module assembly.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eInstall the 1794-CJC2 using the designated terminal base connection for the compatible thermocouple input module. Mount the assembly on the DIN rail with correct mechanical alignment before wiring connections.\u003c\/p\u003e\n\u003cp\u003eMaintain proper terminal connections and avoid routing sensor-related wiring near high-current switching circuits or sources of electrical interference.\u003c\/p\u003e\n\u003cp\u003eVerify that the thermistor sensors are positioned according to the module installation requirements to ensure accurate terminal temperature reference measurement.\u003c\/p\u003e\n\u003cp\u003eConfirm the installed accessory configuration within the Flex I\/O system before applying operating power and commissioning the temperature input channels.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":43768102125658,"sku":"1794-CJC2","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/1794-CJC22.jpg?v=1785478733","url":"https:\/\/www.plcmasters.com\/products\/allen-bradley-1794-cjc2-flex-i-o-cold-junction-compensator-kit","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}