Thermocouple wiring method

The installation of thermocouple terminals is the first step in the use of thermocouples. Correct installation can make thermocouples work more efficiently and measure more accurately, while installation errors may cause errors in thermocouple measurement, and even cause thermocouples to damage.

Thermocouple wiring method:

In fact, the thermocouple wiring is divided into two poles, that is, the positive pole and the negative pole. If we observe, we can see the calibration on the wiring board.

The above calibrations are: +, -, but some manufacturers do not have positive and negative points. If we encounter such a situation, we need to judge by experience:

One is the color of the wiring to distinguish, the green one is the positive pole, and the gray one is the negative pole.

Second, use a thermometer to measure it.

Third, look at the temperature after wiring.

Fourth, if it is sucked, it can also be judged by a magnet.

Fifth, the correct wiring is also required for the compensation wire, and there are also positive and negative poles.

6. When connecting the instrument, we should also pay attention to the positive and negative poles. Generally, there are markings on the terminals. If there is no one, please refer to the manual.

When wiring thermocouples, we also need to pay attention to the fact that general-purpose terminals cannot be used for wiring thermocouples, because the current guide strips in the terminals are usually made of special copper materials such as electrolytic copper, which are different from the copper that makes up the thermocouple. The materials are different, and the thermocouple terminals are provided in pairs, unlike the general-purpose combination terminals that are provided in pieces.

The current strips for each pair of thermocouple terminals are made of a different metal material. For different types of thermocouples, there are correspondingly different terminals.

The conductive material used in the thermocouple terminal should be exactly the same as the conductive material that makes up the thermocouple, so as to ensure the accuracy of the thermocouple signal during transmission.

Industrial assembled thermocouples are used as transmitters for measuring temperature and are usually used in conjunction with display instruments, recording instruments and electronic regulators.

It can directly measure the surface temperature of liquid, vapor and gas media and solids ranging from 0°C to 1800°C in various production processes.

Transmitters are usually used in conjunction with display instruments, recording instruments and electronic regulators. It can directly measure the surface temperature of liquid, vapor and gas media and solids ranging from 0°C to 1800°C in various production processes.