Electric temperature controller with temperature transmitter

Project Overview

Electric temperature controller with temperature transmitter

With the continuous improvement of industrial automation, the requirements for temperature control accuracy are also getting higher and higher. Traditional mechanical temperature control instruments have been unable to meet the needs of modern industrial production due to their low accuracy and single function. The electric temperature controller with temperature transmitter has gradually become a mainstream product in the field of industrial temperature control due to its advantages such as high reliability and multi-function.

1. What is an electric temperature controller with temperature transmitter?

The electric temperature controller with temperature transmitter is an intelligent temperature control instrument that integrates temperature sensors, temperature transmitters, PID controllers, actuators and other components. It uses a temperature sensor to sense the measured temperature and converts the temperature signal into an electrical signal. After amplification and linearization processing by the temperature transmitter, it outputs a standard current or voltage signal to the PID controller. The PID controller calculates the control signal through the PID algorithm based on the deviation between the set value and the actual temperature value, and drives the actuator to perform heating or cooling operations, thereby achieving precise temperature control.

2. The structure of the electric temperature controller with temperature transmitter

The electric temperature controller with temperature transmitter mainly consists of the following parts:

Temperature sensor: used to sense the measured temperature and convert the temperature signal into an electrical signal. Commonly used temperature sensors include thermocouples, thermal resistors, etc. Temperature transmitter: used to amplify and linearize the electrical signal output by the temperature sensor, and convert it into a standard current or voltage signal and output it to the controller. PID controller: Based on the deviation between the set value and the actual temperature value, the control signal is calculated through the PID algorithm and drives the actuator to perform heating or cooling operations. Actuator: Receives the control signal output by the controller and performs corresponding heating or cooling actions. Common actuators include solenoid valves, contactors, solid state relays, etc. Display and operation panel: used to display temperature values, set values, alarm information, etc., and provide operation interfaces such as parameter setting and mode switching. Power module: Provides working power for the instrument. Shell: protects the internal components of the instrument and provides installation and fixation functions. 3. Working principle of electric temperature controller with temperature transmitter

The working principle of electric temperature controller with temperature transmitter can be summarized as the following steps:

Temperature collection : The temperature sensor senses the measured temperature and converts the temperature signal into an electrical signal. Signal conversion: The temperature transmitter amplifies and linearizes the electrical signal output by the temperature sensor, and converts it into a standard current or voltage signal and outputs it to the controller. PID control: The PID controller receives the set value and the actual temperature value output by the temperature transmitter, and calculates the control signal through the PID algorithm based on the deviation between the two. Execution control: The control signal output by the PID controller drives the actuator to perform corresponding heating or cooling actions. Feedback adjustment: The temperature sensor continuously collects the measured temperature and feeds the temperature signal back to the controller. The controller adjusts the output based on the feedback signal.The control signal is adjusted to achieve precise control of the temperature. 4. Characteristics of electric temperature controllers with temperature transmitters

Compared with traditional mechanical temperature control instruments, electric temperature controllers with temperature transmitters have the following significant features:

< p>: Due to the use of advanced temperature sensors and temperature transmitters, as well as advanced PID control algorithms, the control accuracy of electric temperature controllers with temperature transmitters can reach ±0.1°C, or even higher. High reliability: Designed using electronic components and integrated circuits, it has the advantages of strong anti-interference ability, good stability, and long service life. Multi-function: In addition to the basic temperature control function, the electric temperature controller with temperature transmitter also has multiple functions such as alarm output, communication interface, self-tuning, manual/automatic switching, etc., which can meet the needs of different applications. Easy to operate: Using LCD display and button operation, the interface is intuitive and simple, and parameter setting is convenient and quick. Easy to install: Small size, flexible installation method, panel installation, guide rail installation and other installation methods can be selected. 5. Application of electric temperature controller with temperature transmitter

 

Application of electric temperature controller with temperature transmitter, the following are some common application areas:

Plastic processing: injection molding Temperature control of plastic processing equipment such as machines, extruders, and film blowing machines. Food processing: Temperature control of food processing equipment such as food dryers, food packaging machines, and food sterilization equipment. Pharmaceutical production: Temperature control of pharmaceutical production equipment such as pharmaceutical drying equipment, pharmaceutical packaging equipment, pharmaceutical reactors, etc. Environmental monitoring: Monitoring and control of environmental temperature in greenhouses, farms, warehouses, etc. Laboratory equipment: Temperature control of laboratory equipment such as constant temperature water baths, thermostats, ovens, etc. 6. How to choose an electric temperature controller with temperature transmitter?

When choosing a suitable electric temperature controller with a temperature transmitter, you need to consider the following factors:

Temperature measurement range: Choose a suitable temperature sensor and temperature transmitter to meet the requirements of the measured temperature. temperature range requirements. Control accuracy: According to different applications, choose an instrument that meets the control accuracy requirements. Output mode: According to the requirements of the actuator, select the appropriate output mode, such as relay output, linear voltage output, linear current output, etc. Functional requirements: According to actual application requirements, select instruments with corresponding functions, such as alarm output, communication interface, self-tuning, etc. Installation method: Choose the appropriate installation method according to the installation space and site environment, such as panel installation, guide rail installation, etc. Brand and price: Choose a brand with good reputation and reliable quality, and choose products with high cost-effectiveness within a reasonable budget. 7. The future development trend of electric temperature controllers with temperature transmitters

With the continuous development of Industry 4.0 and intelligent manufacturing, electric temperature controllers with temperature transmitters will also become more intelligent and The specific trends are as follows:

Intelligentization: using more advanced control algorithms and artificial intelligence technology to realize functions such as self-learning, self-adaptation, and self-diagnosis, and further improve control accuracy and effectefficiency and reduce operational difficulty. Networking: Integrate communication interfaces such as Ethernet, WiFi, and Bluetooth to realize remote monitoring and data interaction with host computers and cloud platforms, making it convenient for users to conduct remote management and data analysis. Integration: Integrate with other instruments, sensors, actuators and other equipment to form a complete automated control system to achieve more complex control functions and meet higher-end application requirements.