Instruction manual

2 - 2
2.1 Control Knobs and Switches on Main Unit
2.1.1 Main unit (Column)
Fig. 2-2 shows the appearance of the S-4800 main unit (type I).
Fig. 2-2 S-4800 Main Unit (type 1)
Beam monitor
preamplifier
Beam monitor aperture
Secondary electron
detector (Upper)
Objective movable
aperture
Specimen exchange
device
Evacuation control panel
Electron gun
Gun valve
Anti-contamination
trap dewar
Secondary electron
detector (Lower)
Specimen stage