System control: System states
2-8
User Manual
C O N F I D E N T I A L –
limited rights
Feb 2018
Revision A
System shutdown
In case of emergency, bring the system to the
Complete shutdown
state by following this procedure:
1.
Click on the
Column
module /
Beam On
button to stop the
accelerating voltage. A
Column
module /
Source
progress bar
indicates the actual status; the button turns gray when
finished.
2.
Click on the
Vacuum
module /
Vent
button to vent the chamber.
3.
Switch off the Emitter with the use of the
5 - Emitter Startup
alignment – Step 2 of 2.
(f)
4.
Click on the
xT microscope Server
software /
Standby
button.
This stops the UI, the xT microscope Server application
services, and the console (the green
power
button on the
microscope front control panel changes to amber).
(g)
5.
Shut down
Windows 7™
and
switch off the monitor.
6.
If needed, disconnect the power cord and any other input /
output used.
(h)
Note
f)
Switching off the console when the Emitter is on is not optimal for
the emitter – it may deteriorate its filament lifetime.
g)
The system can be left in this state if electrical power is supplied to
the instrument because the pumps are running and pumping the
column.
h)
The Complete shutdown procedure brings the system to the non-
powered state, in which the vacuum in the column area is no longer
supported by running pumps. All valves are closed, and the electron
column and specimen chamber areas are vented. Normally this is used
for system transportation or for service actions, such as repair to
essential systems (electrical and air supplies).
