Radial type bimetallic thermometer temperature when the pointer is how to turn?

Radial bimetallic thermometer is refers to the header and the heat pipe connections in parallel. Its working principle is based on the principle of solid heat expansion, the two pieces of expansion coefficient difference is very big pieces of metal welded together. When the temperature changes, the difference is very big, caused the different expansion coefficient of expansion and contraction, the deformation of sheet metal bending. According to different deformation and produce different momentum, momentum to drive the connection shaft and the other end of the indicating needle, indicate the temperature. So when the radial type bimetallic thermometer at higher temperatures, a pointer is how to turn? Actually this kind of instruction type of radial type bimetal thermometer, its scale value of the dial annotations from low to high temperature, thus, when the temperature rises, the pointer is clockwise. Bimetallic thermometer is not only in this way, actually pressure type thermometer and so on. In addition, when using, pay attention to choose the suitable temperature range, often need to measure the temperature of the thermometer should be 3/4 point range temperature is better.