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Cleaning
Clean the externally accessible device parts regularly. The frequency of cleaning
depends on the operating environment: wet, smoky or particularly dirty surround‐
ings can cause more accumulation of dirt on the device parts.
n
Clean with a soft dry cloth.
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Stubborn dirt can be removed with a slightly dampened cloth.
n
Use only pH-neutral, solvent-free and non-abrasive cleaning agents. Never use
cleaners containing alcohol or thinner.
n
Do not place vinyl objects on the device, as vinyl may stick to the surface or
cause it to discolour.
Components
Cleaning
HD-7 Sonic
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