There are multiple classifications of hazardous areas that require appropriately rated equipment such as intrinsically safe scales.

Typical hazardous areas that require intrinsically safe scales to perform weighing duties include coal mines, chemical storage areas, explosives handling facilities, LPG filling operations, and more. Intrinsically safe scales are independently certified and use low power electronic components designed to not generate enough energy to create a spark under any circumstances.

This allows them to be used inside hazardous areas and in most applications these intrinsically safe scales are fitted with a rechargeable battery pack that is removed and taken to a safe area for recharging.