3.5 Maintenance


If used frequenly, the device surface, the keypad in particular, gets dirty. To clean it, use a piece of soft cloth moistened with clean water. We recommend you to follow these principles while cleaning:

  • 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 evaporate quickly.
  • We recommend using cleaning wipes designed for IT / electronic items.


  • Avoid peroxide-based cleaners.

Future Tag Replacement, Programming Changes

For necessary steps refer to the preceding subsections. Keep the following for future changes:

  • This manual
  • Unused transparent foil strips for button tags


  • Always use the product for the purpose it was designed and manufactured for, in compliance herewith.
  • The manufacturer reserves the right to modify the product in order to improve its qualities.
  • 2N® IP Vario contains no environmentally harmful components. When the product's service life is exhausted and you would like to dispose of it please do so in accordance with applicable legal regulations.