{"id":10278,"date":"2024-04-30T10:17:47","date_gmt":"2024-04-30T02:17:47","guid":{"rendered":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.precicon.com.sg\/?p=10278"},"modified":"2025-12-04T08:03:26","modified_gmt":"2025-12-04T00:03:26","slug":"temperature-controllers","status":"publish","type":"post","link":"https:\/\/glutenfreepleasure.com\/__proxy_domain\/www.precicon.com.sg\/product-guides\/temperature-controllers\/","title":{"rendered":"Temperature Controllers"},"content":{"rendered":"
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What is a Temperature Controller?<\/h3>\n

A Temperature Controller maintains equipment temperature by comparing sensor data with a set point, making calculations based on deviations. Controllers handling different sensor signals, such as humidity, pressure, and flow rate, are called Controllers, and those with electronic capabilities are termed Digital Controllers.<\/p>\n

These Controllers receive sensor signals, regulating heaters and devices for temperature control. They extend to humidity, pressure, and flowrate control, with Omron offering temperature and humidity sensors.<\/p>\n<\/div>\n<\/div>\n

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Temperature Control<\/h3>\n

Temperature Controllers aim to align the process value with the set point, but the response varies depending on the controlled object and method. Ideally, a response like Figure (2) is preferred, achieving the set point quickly without overshooting. However, in some instances, as shown in Figure (1), a rapid temperature increase with overshoot is necessary, while Figure (3) illustrates situations where a slow temperature rise is required.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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(1) The process value settles around the set point while continuously oscillating above and below it.<\/p>\n<\/div>\n<\/div>\n

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(2) Proper response<\/p>\n<\/div>\n<\/div>\n

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(3) Response where the process value slowly reaches the set point<\/p>\n<\/div>\n<\/div>\n

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Temperature Control Configuration Example<\/strong><\/p>\n

The following example describes the basic configuration for temperature control.<\/p>\n<\/div>\n<\/div>\n

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Temperature Controller Principle\u00a0<\/strong><\/p>\n

The figure illustrates a feedback control system for temperature regulation. Key components are integrated into the Temperature Controller, allowing the assembly of a feedback control system for temperature control by combining it with a suitable controller and temperature sensor for the controlled object.<\/p>\n<\/div>\n<\/div>\n

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Configuration of a Feedback Control System<\/strong><\/p>\n<\/div>\n<\/div>\n

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Characteristics of the Controlled Object<\/strong><\/p>\n

To ensure effective temperature control, it\u2019s essential to comprehend the thermal characteristics of the controlled object before choosing a Temperature Controller or temperature sensor.<\/p>\n<\/div>\n<\/div>\n

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Control Methods<\/strong><\/p>\n<\/div>\n<\/div>\n

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[ON\/OFF Control Action]<\/strong><\/p>\n

The graph illustrates ON\/OFF control action, where the output switches ON to provide heater power when the process value is below the set point and OFF when it\u2019s above. This method maintains constant temperature using two values (0% and 100% of the set point), known as two-position control action.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

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[P Action (Proportional Control Action)]<\/strong><\/p>\n

Proportional control action, or P action, reduces the deviation between the process value and set point by generating a control output proportional to the deviation within a set proportional band. Here\u2019s how it works:<\/p>\n