4 DESCRIPTION OF CONTROLS
4-20
EM210F-1
4.4.4 Main
Screen
Left main screen
Center main screen
Right main screen
Fig. 4.20 Main screen
4.4.4a
Left main screen
①
②
③
⑥
④
⑦
⑤
Fig. 4.21 Left main screen
①
HT or Emission
·
HT
Appears when electron beam is not being generated.
Gray background color:
Indicates that the accelerating voltage is turned
off.
Green background color:
Indicates that the accelerating voltage is being
generated.
·
Emission
The background color is green while the electron beam is being generated.
②
Beam Valve
Indicates that valve V1 can be opened.
Green background color:
Indicates that valve V1 can be opened.
Gray background color:
Indicates that valve V1 cannot be opened.
③
Acc
Indicates the accelerating voltage (kV).
④
Emis.
Indicates the electron beam current (
m
A).
⑤
Observation mode
TEM, EDS, NBD or CBD is displayed.
⑥
Spot
Displays the spot size value (1 to 5 in the TEM mode).
⑦
Alpha
Displays the electron beam convergent angle (1 to 9).