{"product_id":"omron-ej1n-tc4b-qq-temperature-controller-4-loop-pid-rs-485-din-rail","title":"Omron EJ1N-TC4B-QQ Temperature Controller 4 Loop PID RS-485 DIN Rail","description":"\u003ch4\u003e Description \u003c\/h4\u003e\n\u003cp data-end=\"264\" data-start=\"19\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe Omron EJ1N-TC4B-QQ is a modular temperature controller designed for precise multi-zone temperature regulation in industrial automation systems. It provides four independent control loops with PID functionality and supports various sensor inputs for flexible process control. This unit is commonly used in applications requiring accurate heating and cooling management.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-end=\"509\" data-start=\"486\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 86.0364%;\" height=\"509\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eOmron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eIndustrial Automation and Controls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eEJ1N-TC4B-QQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eTemperature Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eEJ1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eControl Points\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eInput Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eThermocouple, Pt100, Infrared, Analog (4–20 mA \/ 0–20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eControl Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eON\/OFF or PID (Auto-tuning, Self-tuning)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eVoltage output for SSR (4 points)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e12 VDC ±15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e3 W max.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eSampling Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e250 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eRS-485 (Modbus, CompoWay\/F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eTerminal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eScrewless clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003e-10°C to 55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eIngress Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 28.8967%;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.7531%;\"\u003eApprox. 160 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cspan data-sheets-root=\"1\"\u003eEJ1N-TC4B-QQ \u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp data-start=\"423\" data-end=\"889\"\u003eThe EJ1N-TC4B-QQ is a compact module from Omron’s EJ1 series of temperature controllers. It is built for DIN rail mounting and integrates into distributed control systems requiring multiple temperature control points. The unit supports thermocouples, platinum resistance thermometers, infrared sensors, and analog inputs, making it adaptable to different sensing environments. It also features RS-485 communication for network integration using industrial protocols.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong data-end=\"1102\" data-start=\"1085\"\u003eKey Features:\u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1476\" data-start=\"868\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"876\" data-end=\"1526\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1479\" data-start=\"849\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1457\" data-start=\"876\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"918\" data-end=\"1579\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1471\" data-start=\"864\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1430\" data-start=\"829\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"784\" data-end=\"1373\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1446\" data-start=\"868\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"808\" data-end=\"1355\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"810\" data-end=\"1356\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1340\" data-start=\"753\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"844\" data-end=\"1357\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1439\" data-start=\"878\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"771\" data-end=\"1357\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1362\" data-start=\"798\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1627\" data-start=\"1030\"\u003e\n\u003cli data-end=\"1103\" data-start=\"1030\" data-section-id=\"19zpqhm\"\u003e4 control loops: Enables simultaneous multi-zone temperature control.\u003c\/li\u003e\n\u003cli data-end=\"1202\" data-start=\"1104\" data-section-id=\"17fwsoc\"\u003eWide input compatibility: Supports thermocouples, Pt100, infrared sensors, and analog signals.\u003c\/li\u003e\n\u003cli data-end=\"1287\" data-start=\"1203\" data-section-id=\"1ltu339\"\u003ePID control with auto-tuning: Ensures precise and stable temperature regulation.\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1288\" data-section-id=\"1p44g21\"\u003eSSR drive outputs: 4 voltage outputs for controlling external relays.\u003c\/li\u003e\n\u003cli data-end=\"1429\" data-start=\"1362\" data-section-id=\"173fim9\"\u003eRS-485 communication: Supports Modbus and CompoWay\/F protocols.\u003c\/li\u003e\n\u003cli data-end=\"1504\" data-start=\"1430\" data-section-id=\"1lj6nly\"\u003eCompact modular design: Ideal for DIN rail mounting in control panels.\u003c\/li\u003e\n\u003cli data-end=\"1570\" data-start=\"1505\" data-section-id=\"ycri4g\"\u003eScrewless clamp terminals: Simplifies wiring and maintenance.\u003c\/li\u003e\n\u003cli data-end=\"1627\" data-start=\"1571\" data-section-id=\"81ihyr\"\u003eFast sampling period: 250 ms for responsive control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1733\" data-start=\"1629\"\u003eThe EJ1N-TC4B-QQ delivers reliable, high-precision temperature control for complex industrial processes.\u003c\/p\u003e\n\u003cul data-start=\"841\" data-end=\"1426\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"902\" data-end=\"1480\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1482\" data-start=\"871\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1577\" data-start=\"909\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"903\" data-end=\"1590\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1573\" data-start=\"902\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1480\" data-start=\"877\"\u003e\u003c\/ul\u003e\n\u003cul data-end=\"1552\" data-start=\"887\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"891\" data-end=\"1526\"\u003e\u003c\/ul\u003e\n\u003cul data-start=\"843\" data-end=\"1499\"\u003e\u003c\/ul\u003e","brand":"Omron","offers":[{"title":"Default Title","offer_id":49104761553152,"sku":"EJ1N-TC4B-QQ","price":1597.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/3_aaac444a-8ea6-4a96-a18d-6bc5d2b8b0f2.jpg?v=1785532298","url":"https:\/\/alotechparts.com\/products\/omron-ej1n-tc4b-qq-temperature-controller-4-loop-pid-rs-485-din-rail","provider":"Alo Tech Solutions","version":"1.0","type":"link"}