Lenze Digitec MP 600-9000 DVI - Handbuch (Seite 47)

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4.2 Operation and cleaning of the touchscreen
For operating the touchscreen you use your finger or a touch pen. Never use sharp objects like
ballpoint pens, pencils, tweezers or the like.
Maintenance note:
Switch off the device before cleaning!
For cleaning the touchscreen, use a standard
window or glass cleaner. First drizzle the cleaner on the cloth,
and then wipe over the touchscreen.
Never apply the cleaner directly to the touchscreen!
Neither use alcohol (methyl/ethyl alcohol, isopropanol) nor solvents. Thinner, benzene, scrubbing
powders and compressed air are also unsuitable.
Ensure that no liquid enters the device. Certain sponges and textiles can cause scratches on the
screen surface.