The equipment and protection systems intended to be marketed in the European Union must have ATEX marking and CE Declaration of Conformity, issued by the manufacturer or legal representative. An instruction manual will also be attached to each unit supplied, in the original version and in the user’s language, which, at least, must include: Safety instructions regarding commissioning, use, assembly and disassembly, maintenance and repair, installation and adjustment. Information relating to marking and facilitation of maintenance. All those instructions, plans and diagrams that are useful from a safety point of view. Where applicable, indications relating to the user’s training, details of use in the intended location and conditions, the parameters or magnitudes or limit values of the appliance and the special conditions of use.