Maintenance 4.3654.3 MaintenanceCleaningIf used frequently, 2N® Helios, especially the keypad, gets dirty. To clean it, use apiece of soft cloth moistened with clean water. We recommend you to obey thefollowing principles while cleaning: Never use aggressive detergents (such as abrasives or strongdisinfectants); Clean the device in dry weather in order to make waste water evaporatequickly.Label Replacement, Programming Status ChangesFor necessary steps refer to the preceding subsections. Keep the following for laterchanges: this manual; the completed programming form (including a copy); unused transparent foil strips for button labels.Always use the product for the purpose it was designed and manufactured for, incompliance herewith.The manufacturer reserves the right to modify the product in order to improve itsqualities.2N Helios contains no environmentally harmful components. When the product„sservice life is exhausted and you would like to dispose of it please do so in accordancewith applicable legal regulations.
