Operating Manual
Operation instructions Page12-7
12．6 Round antechamber
12.6.1 Open/Close antechamber door
► Carefully open the antechamber door in
upward direction
Risk of damage!
An evacuated antechamber cannot be opened. The attempt to open a door of an evacuated
antechamber may damage the door locking mechanism.
Never open inner and outer antechamber doors simultaneously and
Never open the inner door of an antechamber filled with ambient atmosphere.
This would result in pollution of the box atmosphere and possibly in damage of measuring
instruments and material within the box.
► Turn the locking mechanism anti-
clockwise, until the antechamber door is
free.
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