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3.2 Control panel
Push buttons (left)
•
Transfer
Evacuates the airlock and opens the gate
valve.
Precondition: Stage is in transfer position, air-
lock rod is retracted.
Stage Ready
LED lights permanently.
Transfer mode is used to insert the specimen
from the airlock into the specimen chamber of
the FESEM.
•
Store
Maintains the vacuum in the airlock while air-
lock door and gate valve remain closed.
The Store LED is flashing until the required
vacuum is achieved in the airlock.
Store mode is used to keep a specimen that is
already located in the airlock under vacuum.
Moreover, this mode is selected to leave the
airlock when not in use.
•
Vent
Closes the gate valve and ventilates the air-
lock.
Vent mode is used to load the specimen into
the airlock.
Each push button also contains a LED.
If the LED is
flashing
, the state, selected by press-
ing the push button, is not achieved yet.
If the LED
lights permanently
, the state selected
by pressing the push button, has been achieved.
LED (right)
•
Stage Ready
Indicates that the stage is in the position ready
to transfer the specimen.
•
Rod Retracted
Indicates that the airlock rod is completely
withdrawn.
•
Door Open
Indicates that chamber door or airlock door is
open.
•
Error
Indicates an error.
