Hitachi HT7800 - System overview column

Power switch panel
2
EMERGENCY OFF switch
(should be used in case
of an emergency like
water leakage or fire
exposure). Special
procedure must be
followed for switching
on the system again).
EVAC power switch
(evacuation system).
Do not touch!
COL power switch
(high voltage,
lenses, deflection
system)
Goniometer switch panel
Sample holder
Condenser aperture
Objective aperture
(automized)
Cold fingers – only
used when needed