Industrial maintenance cycle and examination of the bimetallic thermometer

Bimetallic thermometer is a kind of special used in industry measurement - 50 to 500 c temperature field instruments, widely used in industrial equipment, pipelines, power plants, petrochemical industry, heating systems, Marine, hvac equipment, etc. In order to ensure the accuracy of temperature measurement, daily use industrial bimetallic temperature time, should be checked regularly, so its maintenance cycle is how long? Check the content contains what? First of all, the bimetallic thermometer used in industry in the case of normal use, maintenance cycle is 1 year commonly. Second, bimetallic thermometer used in industry of check the content of the content mainly includes the following four aspects: 1. Check the thermometer indicates whether normal, its installation site should not have severe vibration instructions to influence greatly the shaking and so on. 2. Check whether there is the certificate of approval of the thermometer, and whether certificate expired. 3. Check the various parts of the thermometer. Parts should be assembled firmly, no influence on the performance measurement of corrosion, the header with the protection of the glass or other transparent material should be transparent, shall not interfere with the correct reading defects and damage. 4. Check the dial index value of the thermometer and symbols, and shall be complete, clear and accurate. Thermometer table card should be ℃ symbols. At the same time the precision grades of the thermometer, date of production will be complete. Finally, after the completion of the inspection, we should update related record information.