Understanding the Types of Industrial Temperature Control Devices

Industrial components are in high demand and play a crucial role in the functionality of industrial operations. A temperature control device or temperature controller is one of the prominent devices that have a wide range of applications in different industries. The temperature controller is an instrument for controlling temperatures without additional operator involvement.

The controller in the temperature control system would include a temperature sensor as input and compare the actual temperature with the desired control temperature, also known as the setpoint. Then, the system would offer output to a selected control element, such as a fan or a heater. The temperature controlling device is a critical component of the temperature control system. Therefore, it is important to analyze the whole system before selecting the ideal temperature control device.

Types of Temperature Control Devices

Now that you know about the basics of a temperature control device, let us learn about the different types of controllers. Generally, there are three fundamental variants of temperature controllers such as on-off, PID and proportional controllers. The operator can use the desired temperature controlling device according to the system they have to control.

On-Off Controllers

The On-Off temperature controlling device is the most basic type of control device. The output of the device is either in on or off state and switches output only after the temperature crosses setpoint. In the applications of heating control, the output is off when temperature is above setpoint and on when temperature is below setpoint.

PID Controllers

PID controllers or Proportional with Integral and Derivative control devices provide a combination of proportional control with additional adjustments. As a result, the PID temperature control unit can automatically cope with changes in the system. Interestingly, the PID temperature controllers provide higher accuracy and stability in temperature control. PID controllers are suitable for systems characterized by small mass and respond swiftly to energy changes.

Proportional Controllers

Proportional controllers are suitable for eliminating the setbacks of coping with fluctuating temperatures found generally in an on-off temperature control device. The proportional controller helps in decreasing the average power supply to the heater when temperature approaches near to setpoint. As a result, the heater will slow down and approach the setpoint while maintaining a stable temperature.

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