PID Temperature Controllers
The PID temperature controller uses the Proportional-Integral-Derivative algorithm to precisely let heating elements or other heating devices maintain a desired temperature. According to panel sizes differences, our digital pid temperature controllers are 1/16 DIN(48*48mm), 1/8 DIN(48*96mm or 96*48mm), 1/4 DIN(96mm*96mm), 72*72mm. If by series differences, they are divided into CH series PID controllers, REX series digital temperature controllers, TC5 series big display PID temperature controllers. We can produce from low cost temperature controllers to high-end LCD temperature controllers or programmable temperature controllers(also called ramp and soak temperature controllers). Besides, we can supply a pid temperature controller kit as well, including temperature sensor, temperature controller, SSR with heatsink or ac contactor. Compared with a simple ON/OFF temperature controller, it features high accuracy and efficiency.
On/Off Temperature Controllers
The on off temperature controller manufactured by us is a simple heater controller that turns a heater on and off to maintain a desired temperature. We can produce many kinds, such as button pushing control type and knob control type, the input can be K-TC(Thermocouple) or PT100-RTD(Resistive Temperature Detector), output is relay. This is a cost-effective and highly precise temperature controller, typical applications such as electric oven, water heating equipment, and so on.
Our temperature controller advantages
temperature controller categories
Temperature controller applications
Greenhouse temperature control
The temperature controllers can be used in the greenhouse to keep the temperature at a constant value, ensuring the plants can grow better.
Industrial temperature control
We can find the temperature controllers in various industrial temperature control systems, such as electricity distribution boxes etc.
Oven temperature control
The oven temperature controller is a very vital component in an oven system, it can control temperature very precisely.
Powder coat oven controller
We will use the temperature controller in a powder coat oven to accurately control the temperature.
water boiler temperature control
In some water boilers, a pid temperature controller is very common and easy to find, it can keep the temperature at a desired value.
Furnace temperature control
The furnace needs a very high temperature to melt metal and glass etc., we can control this temperature by a temperature controller.
The Complete Guide To Temperature Controller
Introduction to Temperature Controllers
Today we can find many applications of temperature controllers, such as air conditioners, hot water heater systems, beverage packaging machines etc.. A temperature controller is an instrument adjusting the environment or material temperature to the wanting value. The first temperature controller was innovated by Warren Johnson, owner of Johnson Controls, in 1883. With the technology developing, we can find many types of temperature controllers, such as simple on/off temperature controllers, pid temperature controllers, ramp and soak temperature controllers(also called programmable temperature controllers).
Types of Temperature Controllers
A full temperature control system can simply consist of a temperature sensor, temperature controller and actuator. The three parts have different functions, the temperature sensor is to collect the environment or material temperature for the temperature controller. Then the temperature is like a brain to analyze the temperature data, then tell the actuator when and how to respond.
At present, there are two types of temperature sensors, one is thermocouple, such as S, R, B, N, K, E, J, T. The other is RTD(Resistance Temperature Detector) sensor, products including PT100, PT1000, Cu50, etc..
For the temperature controller, there are 3 different ones according to control accuracy differences, they are on off temperature controller, proportional temperature controller and pid temperature controller, their control accuracy increases sequentially.
On off temperature controller: This is the simplest temperature controller as it only has two working statuses, completely on or completely off. When the measured temperature is above set temperature, it will turn off completely, when the temperature is below the set value, it will turn on completely. This operation will cause a very high temperature fluctuation. It is not particularly perfect, but can be useful in systems that don’t require precise control.
Proportional temperature controller: A proportional temperature controller operates by changing the output in proportion to the amount of temperature error. If the temperature is far from the set value, the controller will adjust the output more, while if the temperature is close to the set point, the controller will adjust the output less. This proportional control helps to maintain the temperature within a narrow range around the desired set point. Compared with the on off one, it is more precise, but less precise than the PID one.
Pid temperature controller: PID temperature controller is the most precise one, the PID stands for Proportional-Integral-Derivative. Relying on this advanced algorithm and continuously calculating the error between set value and measured value, the measured temperature will gradually approach the set value, and finally the two values will be equal.
Key Features of Temperature Controllers
A temperature controller consists of a circuit board, a panel, a regulator, terminal blocks, etc. The function of the temperature controller is to detect the temperature signal, control the switch of the heater or the cooler, so as to realize the regulation of the temperature. As mentioned above, on off temperature controller accuracy is the lowest as it use calibration, pid temperature controller accuracy is the highest as it use auto-tuning technology to automatically calculate the three control parameters of PID, and automatically save them in the temperature controller, so as to achieve the most reasonable and accurate temperature control purpose
Selecting the Right Temperature Controller
Having knowledge about temperature controllers is vital, and selecting the right temperature controller for your application is equally crucial.
When selecting, there are 7 factors to consider, they are control accuracy, the temperature regulator panel size, working voltage, input temperature sensor type, output type( for instance, relay, SSR or analog output), alarm quantity and communication function.
Mistakenly selecting a temperature controller can lead to significant issues. One common mistake to avoid is choosing the output type. SSR output can only control the solid state relay, relay output needs to wire a contactor or intermediate relay. Analog output should wire to a proportional SSVR.
Advanced Applications and Innovations
The temperature controller can be used in many systems, the typical applications are beer brewing temperature control, water temperature control system, HVAC system, boiler temperature control, and so on.
RTD is the abbreviation of Resistance Temperature Detector, it has 3 wires, while thermocouple has 2 wires. RTD detecting temperature range is 0-150℃, while thermocouple detecting temperature range is 0-1000℃. RTD temperature detecting range is lower than thermocouple.
As the PID temperature controller has Proportional, Integral and Derivative three parameters, please read the temperature user manual to calibrate these parameters or use its auto-tune function to automatically calibrate.
Accuracy ensures that processes run optimally, preventing errors or inefficiencies.
They are used in brewing, industrial automation, physics, and more.
Digital controllers offer more precise control and are often easier to calibrate.
A temperature controller major components include circuit board, a panel, a regulator, terminal blocks, etc.
By knowing the above knowledge of the temperature controller, now we can clearly choose a suitable temperature controller for our application.