Maintenance 3.3353.3 MaintenanceCleaningIf used frequently, 2N® Helios IP Force gets dirty. To clean it, use a piece of soft clothmoistened with clean water. We recommend you to obey the following principles whilecleaning: Never use aggressive detergents (such as abrasives or strong disinfectants). Use suitable cleaning agents for glass lens cleaning (cleaners for glasses,optic devices screens, etc.). Alcohol-based cleaners may be applied. Clean the device in dry weather in order to make waste water evaporatequickly.Tip The 2N® Helios IP Force models of Part Nos. 9151101W and 9151101CWmay be cleaned with WAP high pressure washers.Future Tag Replacement, Programming ChangesFor necessary steps refer to the preceding subsections. Keep the following for futurechanges: This manual Unused transparent foil strips for button tagsAlways 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 IP Force contains no environmentally harmful components. When theproduct„s service life is exhausted and you would like to dispose of it please do so inaccordance with applicable legal regulations.