1, the oxygen meter can be heated properly.
2. Reduce the humidity of the environment. The carbon dioxide gas filled in the cylinder is liquid. Each catty of liquid carbon dioxide gas can be changed into 509 liters of gas. When carbon dioxide changes from liquid to gas, it needs to consume a lot of heat. The purpose of heating the gas meter is to prevent the gas meter from freezing and causing gas blockage. Also, carbon dioxide gas contains a small amount of water, and heating can reduce hydrogen holes caused by water in the weld.