Most of the thermocouples are used in different types of temperature measurement equipment to meet the requirements of the industry. So, what are the unique advantages of several widely used thermocouples in the market?
1. Armored thermocouple.
Armored thermocouple is a kind of thermocouple with high utilization rate. Compared with ordinary thermocouple, armored thermocouple is equivalent to wearing a layer of metal coat, which can effectively protect the thermocouple wire inside. It has a longer service life under such harsh environment as acid and alkaline. Moreover, the armored thermocouple is easy to bend, and the installation of terrain space requirements are relatively low, at the same time, this type of thermocouple pressure resistance is very good, thermal response time is less, so the application range is very wide.
2. S-type Pt Rh thermocouple.
As a kind of precious metal thermocouple, S-type thermocouple is not widely used as armored thermocouple, but this S-type thermocouple is the most stable type in this type of products. Its main feature is wide temperature range, long-term use of the highest temperature can reach 1300 ℃, if short-term use, the maximum temperature can reach 1600 ℃, and the service life is relatively long, it is very suitable for smelting furnace, steel furnace, glass manufacturing industry and so on.
3. J-type thermocouple.
J-type thermocouple is also known as constantan thermocouple. Compared with the first two thermocouples, this thermocouple has a great advantage in price. However, although the price is relatively cheap, J-type thermocouple performs very well in sensitivity, stability and uniformity, so this type of thermocouple is widely used. However, the positive iron oxidizes faster at high temperature, so there are some requirements for the upper temperature limit when using, and some protective measures should be taken when using in sulfurized atmosphere.
4. K type food thermocouple.
As the name suggests, this K-type food thermocouple is a thermocouple model produced to measure the temperature in food production. Its installation and use are simpler and faster than the first two. This K-type food electric couple has good linearity, high sensitivity and cheaper price. Therefore, this type of thermocouple is also widely used.
Above, we have introduced several common thermocouple models, which have a high utilization rate. In addition, there are many other types of thermocouples. They are all customized temperature measuring probe tools according to different temperature measurement environments. No matter what type of thermocouple you buy, you need to choose a professional manufacturer to give suggestions, otherwise it is easy to change the type of thermocouple The improper matching of the number causes great loss in the process of use.
On 2018-08-08 11:45:46
