The bimetallic thermometer precision grade

Bimetallic thermometer precision grade and how much error + %. Under the condition of normal use, the instrument the accuracy of the measurement results of the accuracy of the instrument, traditionally known as precision instrument accuracy. In industrial measurement, the accuracy of the often said with a precision instrument, precision is great reference error remove '+' and '%'. Precision measuring instrument is one of the important indicators of quality, our country industrial instruments into 0. 1, 0. 2, 0. 5, 1. 0 and 1. 5, 2. 5, 5. 0 seven grades, and logo on the meter scale or nameplate. Accuracy level customarily called precision level. Bimetallic thermometer, for example. Precision grade is it permissible error of the dial scale value by it's percentage, its accuracy level the greater the number of permissible error of dial scale limit value is larger. Range, the greater the same precision level, it measured the absolute value of the temperature the greater the margin of error. 1. Level 5 and 1. Level 0 respectively under normal use, the permissible error of the thermometer was the range of + / - 1. 5 and + 1. 0%.