INFICON Cygnus Thin Film Deposition Controller - Manual (Page 34)

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Cygnus Operating Manual
1.7 Initial Power-On Verification
A preliminary functional check of the instrument can be made before formal
installation. It is not necessary to have sensors, source controls, inputs or relays
connected to do this. For more complete installation information, see
Chapter 6,
Installation and Interfaces and Chapter 7, Calibration Procedures .
WARNING - Risk Of Electric Shock
There are no user-serviceable components within the
instrument case.
Dangerous voltages may be present whenever the power
cord or external input/relay connectors are present.
Refer all maintenance to qualified personnel.
WARNING - Risk Of Electric Shock
Never interrupt the protective earth circuit.
Any interruption of the protective earth circuit inside or
outside the instrument, or disconnection of the
protective earth terminal is likely to make the instrument
dangerous.
This symbol indicates where the protective earth ground
is connected inside the instrument. Never unscrew or
loosen this connection.