Bimetallic thermometer precision is how to choose?

Bimetallic thermometer is a professional - measurement 50 to 500 c the thermometer instrument, it is widely used in petrochemical, hvac equipment, ventilation equipment, pipelines, power plants, Marine, and home. 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. As a measurement, the precision of in different fields have different natural, then, the precision of the bimetallic thermometer how should choose? Delta industrial bimetallic thermometer delta household bimetallic thermometer we common the precision of the bimetallic thermometer is divided into 1. Level 0, 1. Level 5, 2. Level 0, 2. Level 5 and 4. Level 0, 1. The precision of level 0 is higher than 1. Level 5. Normally the precision of the thermometer 2. Level 5, and the precision of the bimetallic thermometer is used in industry to 1. 0 or 1. 5 is suitable.