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Care, maintenance and disposal
Safety
Under normal operating conditions, the device requires only a minimum of care and main-
tenance. However, it is essential to observe certain points to ensure that the device gives
reliable service for many years.
WARNING!
Work carried out incorrectly and electric shocks can have fatal results.
► All covers of the device and the housing in general should only be opened or removed
by trained technicians
► Unauthorised opening or tampering with the device will invalidate the warranty and cre-
ate the risk of serious injury or damage.
If the covers of the device or the housing are opened by trained personnel, the following
warnings apply:
WARNING!
An electric shock can be fatal.
Do not touch any components in the housing interior before the integrated battery has been
electrically isolated from the device and electrically charged parts (e.g. capacitors) have
been discharged. Before opening the device:
► Stop energy delivery by pressing the "OFF" button
► Wait until the "Power ON" indicator has gone off
WARNING!
An electric shock can be fatal.
Do not touch any components in the housing interior before the integrated battery has been
electrically isolated from the device and electrically charged parts (e.g. capacitors) have
been discharged. After opening the device
► Electrically isolate the integrated back-up battery from the device
► Put up an easy-to-understand warning sign to stop anybody inadvertently switching it
back on again
► Using a suitable measuring instrument, ensure that electrically charged parts (e.g. ca-
pacitors) have been electrically discharged
WARNING!
Work that is carried out incorrectly can cause serious injury or damage.
Maintenance, technical inspections and checks must only be carried out by qualified per-
sonnel. All repairs and maintenance work must be performed exclusively using original re-
placement parts.
Any changes to the device or the use of parts that are not original spare parts requires the
approval of the manufacturer.
If these conditions are not met, the manufacturer cannot guarantee the safety of the de-
vice.