The repair cycle and contents of bimetallic thermometer

Repair cycle: the bimetallic thermometer repair cycle is 1 year commonly. Maintenance content 1. Check on the bimetallic thermometer indicates whether normal, its installation site should not have severe vibration instructions to influence greatly the shaking and so on. 2. Check the certificate of approval of the bimetallic thermometer for, and whether certificate expired. 3. Check all the various components 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 thermometer meter disc dividing values and symbols, shall be complete, clear and accurate. 5. Thermometer dial ℃ operator number, name of manufacturer, model, factory number. Precision grade, date of production, the symbol and serial number measuring instruments manufacturing license.