INFICON Cygnus Thin Film Deposition Controller - Manual (Page 19)

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Cygnus Operating Manual
1.2.4 Main Power Connection
WARNING - Risk Of Electric Shock
This instrument has line voltage present on the primary
circuits whenever it is plugged into a main power source.
Never remove the covers from the instrument during
normal operation.
There are no operator-serviceable items within this
instrument.
Removal of the top or bottom covers must be done only
by a technically qualified person.
In order to comply with accepted safety standards, this
instrument must be installed into a rack system which
contains a mains switch. This switch must break both
sides of the line when it is open and it must not
disconnect the safety ground.