Intrinsic safety (IS) is a protection technique for safe operation of electrical equipment in hazardous areas by limiting electrical and thermal energy, available for ignition to safe levels. For potentially hazardous (for example Class I, Div. 1) environments, Hardy Process Solutions has not only designed safety into its new IS instruments but also its other scale components with an appropriate level of protection for different applications. Hardy recommends using intrinsically safe low-energy instruments, load cells, scales, and summing boxes. These products limit power and current to them through fibre optics or other low power design. Other applications may require intrinsic barriers that prevent energy from crossing over from the safe area.