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• Rubber
• Polyurethan
Surface treatment
The following surface treatment processes
were used to protect against corrosion:
• Lacquered surfaces = Polyester powder
coating or ED-coating
• Non-lacquered aluminium parts =
Anodized coating
• Non-lacquered steel surfaces = Galvanized
Power unit
For an optimum lifetime the power unit must
be connected to the mains voltages as often
as possible (e.g. every night). Charge the
batteries 12 hours before use.
The batteries must be charged at least
every 3rd month - otherwise there might
be damages due to self-discharge. It is
recommended to test the battery function at
least once every year.
Recharging the battery:
• Plug the charging lead into the handset
• Plug the charger into the electricity supply
and switch ON. A yellow light on the
charger will light up
• Charge the batteries until the lamp on the
charger turns green
EN
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