In recent years, the domestic thermocouple sales momentum has continued to remain optimistic. With the widespread application of thermocouples, the quality of products on the market is also uneven. Some customers have reported that the thermocouple products that have just been purchased failed after a short period of time. , And the failure rate is very high, here to remind the majority of buyers, the selection of reliable quality thermocouple products is the very key. The structure and principle of thermocouple temperature measurement have been very mature. It is mainly composed of two different components of material conductors to form a closed loop. According to the difference in temperature during measurement, there is a current signal in the loop, so that both ends are invisibly generated This is the well-known Seebeck effect. Two homogeneous conductors with different compositions are thermoelectrodes, the end with a higher temperature is the working end, the end with a lower temperature is the free end, and the free end is usually at a certain constant temperature. Thermocouples are also working consumables. After daily use and operation, the corresponding ones will wear out. If they are used for too long, they will also malfunction, leading to failure and scrapping. The key to the thermocouple lies in the thermocouple wire inside. A good thermocouple wire can prolong the service life of the thermocouple. So how should we choose a reliable thermal resistance wire thermocouple product? Below we provide a few points to distinguish the thermal resistance wire Key point: First of all, we can measure the thermal resistance wire for convenience. At the same time, we must carefully check the appearance of the thermal resistance wire to observe the thickness of the wire. Secondly, we judge the quality status through the measurement and comparison of thermocouples, and compare the temperature of the newly purchased thermocouple with the good thermocouple, so that the difference can be intuitively made.
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