Safety is of utmost importance when working with thermocouple calibration furnaces. The high temperatures involved pose a significant burn risk. Furnaces should be equipped with proper insulation and heat - resistant exteriors to prevent accidental contact with hot surfaces. Additionally, they should have reliable over - temperature protection systems. In case the furnace's temperature exceeds the set limit due to a malfunction, the over - temperature protection will immediately cut off the power to the heating element, preventing damage to the furnace and the thermocouples, as well as reducing the risk of fire.
Electrical safety is also crucial. All electrical components of the furnace should be properly grounded, and the wiring should be of high quality to prevent electrical malfunctions. When handling thermocouples during calibration, it is essential to use appropriate protective gear, such as heat - resistant gloves and safety glasses. Regular safety inspections of the furnace, including checks of the door seals (to prevent heat leakage) and the integrity of the heating elements, should be carried out to ensure safe operation.