{"product_id":"ah04tc-5a-delta-ah500-series-4-channel-thermocouple-temperature-module","title":"AH04TC-5A DELTA AH500 Series 4-Channel Thermocouple Temperature Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH04TC-5A (AH04TC5A)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance 4-channel temperature measurement module designed for the Delta AH500 modular PLC system. This module is engineered for high-precision thermal monitoring and control in demanding industrial processes such as plastic extrusion, heat treatment, and chemical reactors. It supports a wide range of thermocouple types (\u003cstrong\u003eJ, K, R, S, T, E, N\u003c\/strong\u003e) and low-voltage signals (\u003cstrong\u003e±150mV\u003c\/strong\u003e) with an effective\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e16-bit resolution\u003c\/strong\u003e. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH04TC-5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis built for mission-critical reliability, featuring\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehot-swapping\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecapabilities, signal isolation, and a built-in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePID control function\u003c\/strong\u003e, allowing it to manage temperature loops independently of the main CPU's scan cycle.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe hardware of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH04TC-5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed for maximum signal integrity and system uptime. It utilizes a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eJIS removable terminal block\u003c\/strong\u003e, which simplifies maintenance and field wiring. The module provides a fast conversion time of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e200ms per channel\u003c\/strong\u003e, ensuring responsive data acquisition for dynamic temperature changes. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eisolated signal design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprotects the internal PLC backplane from field-side electrical interference. Advanced diagnostic capabilities are integrated, including\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edisconnection detection\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto immediately alert operators if a thermocouple probe fails, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emodule status LEDs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor instant local troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAH04TC-5A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDELTA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSeries\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAH500 Series\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eNumber of Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Signals\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJ, K, R, S, T, E, N Thermocouples; ±150mV\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEffective Resolution\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16-bit (0.1°C \/ 0.1°F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAccuracy\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±0.6% of Full Scale\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eConversion Time\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e200 ms \/ channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTerminal Block\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJIS Removable Type\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.5 W (Internal)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eControl Function\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBuilt-in PID\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSpecial Functions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHot-swapping, Disconnection Detection, Interrupts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the AH04TC-5A support Cold Junction Compensation (CJC)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. To maintain high accuracy, the module includes internal cold junction compensation to account for the temperature at the terminal block where the thermocouple wires connect. This ensures that the voltage-to-temperature conversion remains precise across varying ambient conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the \"Hot-swapping\" function in the AH500 series?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH04TC-5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed for high-availability systems. Hot-swapping allows you to replace a faulty temperature module without powering down the entire PLC rack or stopping the process. This is critical for continuous manufacturing lines where downtime results in significant material loss.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the PID function work within the module itself?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eInstead of the PLC CPU performing all PID calculations, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAH04TC-5A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecan be configured to handle PID loops locally. This reduces the processing load on the main CPU and ensures that temperature control continues smoothly even if the CPU scan time increases due to complex logic elsewhere in the program.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermocouple Wiring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen wiring the 4 channels, always use the correct compensation wire for the specific thermocouple type being used. Mixing wire types or using standard copper wire will introduce significant measurement errors. Ensure that the polarity (Positive\/Negative) is strictly observed at the JIS terminal block.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNoise Mitigation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo achieve the rated ±0.6% accuracy, keep thermocouple leads away from high-voltage AC power lines and Variable Frequency Drives (VFDs). If the environment is electrically noisy, utilize the module's built-in digital filtering settings via the AH500 configuration software.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDisconnection Detection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnable the \"Disconnection Detection\" function in the module parameters. This will allow the PLC to trigger a safety routine (such as shutting down heaters) immediately if a sensor wire is broken, preventing uncontrolled heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Delta Electronics","offers":[{"title":"Default Title","offer_id":53102415249771,"sku":"AH04TC-5A","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/AH04TC-5A-ydnnkhu14li.png?v=1776137193","url":"https:\/\/www.plcprotech.com\/products\/ah04tc-5a-delta-ah500-series-4-channel-thermocouple-temperature-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}