Bimetallic temperature scoring degree value is what mean?

Bimetallic thermometer is applied in chemical and petrochemical industry; Power engineering; Field of food. Construction machinery and general factory. Those metal thermometer degree value is what mean? Index value of the bimetallic thermometer is refers to the adjacent two scribed line ( Each small cells) Said temperature, record degrees Celsius temperature values are unit ( ℃) And Fahrenheit ( ℉) 。 Index value of the bimetallic thermometer is usually 1 ℃ or 2 ℃, large temperature range interval is usually 5 ℃ and 10 ℃. Bimetallic thermometer 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.