Bimetallic thermometer is the difference between 481 and 401

Bimetallic thermometer WSS - And WSS - 481 401 is widely used in industry, they are measured in the field of low temperature test instrument. This kind of bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Those metal thermometer is the difference between 481 and 401? Below small make up to answer for you: bimetallic thermometer WSS - Diameter of 100 mm, 481:4 representative dial 8 representative universal installation, 1 on behalf of the movable nipple. Bimetallic thermometer WSS - Diameter of 100 mm, 401:4, on behalf of the dial 0 (axial type, 1 on behalf of the movable nipple. Bimetallic thermometer WSS - And WSS - 481 401 structure, the principle of thread is wound into the shape of thermal bimetal 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.