The correct use of bimetallic thermometer should achieve the following four o 'clock

Bimetallic thermometer its 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. And the application of the bimetallic thermometer is widespread, small to household food thermometer, big a special thermometer in various oil and nuclear power plant, the proper use of bimetallic thermometer should achieve the following four points: 1, carefully observe the bimetallic thermometer range, be sure to select suitable thermometer; 2, bimetallic thermometer at the time of use, best insertion depth for two-thirds of the length of the heat pipe, because the temperature sensing element installed on the bottom of the heat pipe is only measured medium, the temperature sensing element completely immersed to measure the accurate temperature; 3, when using, avoid knock against bimetallic thermometer protecting tube, more should not appear the status of the bending deformation; 4, for bimetallic thermometer is often used, to do regular use of performance check, the best time is inspected once every six months.