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9 Cleaning and maintenance
Clean the user interface regularly with a dry, soft cloth. To prevent scratch-
ing, a microfibre, cotton or linen cloth is recommended; do not use paper
towels. Fingerprints and other residues can be removed with a mild, deter-
gent or glass cleaner, applied to a soft, clean, slightly dampened cloth.
Then wipe the surface with a dry cloth.
Under no circumstances should you use strong cleaning agents such as ac-
etone, alcohol (ethanol, methanol or isopropyl alcohol), benzene, any kind
of acid (including acetic acid and citric acid), abrasives or solvents, or me-
dia containing these substances.
Whatever cleaning agent you use, IN NO EVENT should it be sprayed or
applied directly to the touchpanel.
In order to be able to clean the touchpanel without inadvertently operating
loads or changing their settings, the touchpanel can be temporarily deac-
tivated.
• Tap the [SYSTEM] button and then [Cleaning].
• Clean the touchpanel as described above.
The touchpanel will then be deactivated for 30 seconds. The
cleaning time remaining is displayed.
If during cleaning the touchpanel is penetrated by liquid or solid
materials, disconnect the touchpanel from the mains. Please then
get in touch with your system integrator.
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