System Options: UMB Stub Holder Kit
7-30
User Manual
C O N F I D E N T I A L –
limited rights
Feb 2018
Revision A
Unloading a sample
1.
If there is a sample carrier in the loader chamber attached to the bayonet, remove it (the chamber needs to be
vented and the carrier removed).
2.
Switch off the electron beam accelerating voltage. Retract the GIS modules or STEM detector (if present) to a
safe state (cannot be used in combination with the loader).
3.
Close the loader chamber lid. After the lid is properly closed, the
P
button starts to shine.
4.
Press the
P
button. The button stops shining and the pumping cycle starts. The stage moves to the loading
position at the same time. When the vacuum in the loader chamber is correct, the pump light starts to shine and
the
OK
button lights up, indicating operation can continue. The gate valve lever interlock is released.
5.
Turn the Gate Valve knob lever from the LOCK to the UNLOCK position. Then carefully pull the knob bar fully out
from the first mark on the knob drum to the second mark. Turn the knob bar counterclockwise to the LOCK position.
6.
Move the unloading rod from the Parking position into the chamber while still holding the rod bar. When
resistance is found, turn the rod bar to the left (counterclockwise) to enter the bayonet. Push forward and turn
the rod to the right (clockwise. The bayonet will engage with the Sample Carrier on the Stage Adapter close to
the end of the rod travel.
7.
Withdraw the rod back to the far end of the rod guide and place it in the Parking position. The rod, bayonet and
sample carrier are now out of the specimen chamber and sit in the Loader chamber.
8.
Close the Gate Valve by turning the knob bar to the UNLOCK position. Press the knob in to engage the valve over
the opening. This can be seen through the lead glass lid. Then turn the knob bar to the LOCK position to secure
the valve.
9.
Press the
V
button once. The loader chamber will be vented and the lid can be opened. The sample carrier can
be released by turning the rod bar to the far left and pulled back, then returned to the parking position. Remove
the sample carrier.
10.
Close the loader chamber lid.
11.
Press the
P
button to evacuate the loader chamber.
Note
In case the sample carrier falls from the loading rod, vent the specimen / loader chamber with gate valve opened, put the
carrier back to its correct position, and close the gate valve. Proceed from step 1.
UMB Stub Holder Kit
This option contains the following items:
•
Universal mounting base (UMB)
•
Storage box
•
2 stub modules each holding 3× 1/2” stubs or 2× 1” stubs
•
2 clamp bars
•
User guide
•
System calibration sample
The stub holder is mounted on the stage interface plate.
