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7
Maintenance
7.3 CRT display
06.90
7.3
CRT display
The pictures on the CRT display can oscillate when the monitor is
exposed to
electromagnetic
fields. Devices which
generate
electromagnetic fields, such
as
transformers, fans,
electromagnetic switches, a.c.
cables under power,
etc. must
be
more than
300 mm away
from the CRT display unit.
Cleaning
The front
of
the monitor and
the surface of
the operating panel can be cleaned. For dirt that is
relatively easy
to
remove,
standard household washing-up liquid, or an industrial cleaner
(such
as "Spezial Swipe") can be used. These cleaners will also remove dirt containing graphite.
Cleaning
agents
which contain one or more of the following ingredients can be used for short
periods of time:
-
diluted mineral acids
-
bases
-
alcohol
-
organic hydrocarbons
-
detergent solutions
-
greases and oils
7.4
7-4
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Siemens AG 1990 All Rights Reserved
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