1.3 Certifications .................................................................................................................... 71.4 Safety instructions from the manufacturer ..................................................................... 81.4.1 Copyright and data protection ................................................................................................ 81.4.2 Disclaimer ............................................................................................................................... 81.4.3 Product liability and warranty ................................................................................................ 91.4.4 Information concerning the documentation........................................................................... 91.4.5 Warnings and symbols used................................................................................................. 101.5 Safety instructions for the operator