How to ensure the precision of the bimetallic thermometer accuracy?

With more and more developed science and technology, more and more strict with production process, the performance of instrumentation, accuracy and functional requirements is more and more, the accuracy of the bimetallic thermometer decides the accuracy of their work, so the bimetallic thermometer is vital to ensure its precision accuracy of production enterprises, so how to ensure the precision of the bimetallic thermometer accuracy? Instrument to tell everyone: bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Bimetallic thermometer can be directly measured in the process of various production - 80 ℃ ~ + 500 ℃ within the scope of liquid, steam and gas medium temperature. Calibration in production process, bimetallic thermometer is an important working procedure, in order to the accuracy of the calibration, the requirement is very important to the accuracy of the standard mercury thermometer, so every two years a standard mercury thermometer must be sent to the professional technical center verification, have issued by the national testing center of metrology verification certificate before it can be applied to the production of calibration bimetallic thermometer.