How to connect the thermocouple to the instrument diagram

1. The basic principle of thermocouples
A thermocouple is a sensor that uses the principle of measuring the thermoelectric potential generated by two different metal conductors under temperature difference. It is formed by connecting the welding ends of two different metal conductors, and when the temperatures of the two joints are different, a thermoelectric potential is generated.
2. The role of instruments
An instrument is a device used to display and measure various physical quantities and electrical signals. In thermocouple measurement, the instrument mainly plays the role of receiving and displaying thermoelectric potential, and converting it into temperature values.
3. Wiring diagram of thermocouple and instrument
The wiring diagram of the thermocouple and instrument is shown in the following figure:
(Insert wiring diagram here)
4. Wiring steps
Firstly, determine the color of the two wires of the thermocouple. Generally, red represents the positive electrode and blue represents the negative electrode.
Connect the red wire of the thermocouple to the positive terminal of the instrument.
Connect the blue wire of the thermocouple to the negative terminal of the instrument.
Ensure that the wiring is secure and be careful not to have short circuits or incorrect connections in the wires.
5. Precautions
When wiring thermocouples and instruments, the following points should be noted:
During the wiring process, ensure that the instruments and other power sources are turned off to avoid electric shock or equipment damage.
During the wiring process, it is important to carefully read the instructions for the instrument and thermocouple, and follow the instructions for wiring.
If you are unsure about the wiring method, you should consult a professional or read relevant materials.
The wiring between thermocouples and instruments is a crucial step in thermocouple measurement, and correct wiring can ensure the accuracy of thermocouple measurement. During the wiring process, carefully read the instructions of the instrument and thermocouple, and pay attention to safety precautions. If you have any questions, you can seek professional help.