Aggressive and toxic cleaning agents damage the equipment and rep- resent an increased accident risk. ▲ Follow the safety regulations for dealing with cleaning agents. After use dispose properly the cleaning agents. ▲ Avoid cleaning solutions with a 5.0 < pH < 8.5. ▲ Clean with non-toxic cleaning agents and disinfectants. ▲ Only use cleaning agents that not affect the used seal and filter materials (silicone / PTFE / Teflon / polyester fabric). ▲ Any residues of cleaning agent on parts with product contact are not allowed. ▲ Do not clean with high pressure cleaners, steam cleaner or compressed air. ▲ Not remove product adhesion with force. ▲ There must no moisture on electrical components. ▲ Wipe all surfaces dry before use.