Bimetallic thermometer is introduced and the matters needing attention

Bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer working principle is to round shape into threaded heat bimetallic strip as thermal devices, and put it in a protective sleeve tube, one end is fixed, known as the fixed end, the other end of the connection on a thin shaft, called the free end. Spool at the free end is equipped with a pointer. When the temperature changes, the resulting thermal devices the free end of the rotation, drive the thin axis from the Angle of the pointer changes, corresponding temperature indicator on the dial. The temperature is the most common and important in the process of industrial production operation parameters. So the bimetallic thermometer is applied in chemical and petrochemical industry; Power engineering; Field of food. Construction machinery and general factory. When use must pay attention to the following: 1, the bimetallic thermometer is installed on the use of protection tube, in the process of using, it into the medium length, must be greater than the actual length of the temperature sensing element. 2, bimetallic thermometer at the time of use, often immersed in the 100 mm to the length of the control. Measure the temperature in 0 The range of 50 ℃, immersed length must be greater than 150 mm, only in this way can accurately measure the temperature. 3, the bimetallic thermometer safekeeping, either at the time of use, or at the time of transport, must avoid knock against the condition of the existence, more should not have been the use of the bending deformation condition. 4, for bimetallic thermometer is often used, to do regular use of performance check, the best time is inspected once every six months. 5, have the thread gauge is installed wrench must be used when the rotating hexagonal section, it is forbidden to turn the thermometer meter by hand. The bimetallic thermometer operator, in the process of use, must be in strict accordance with the above method to use.