Hitachi Microscope & Magnifier S-4800 Manual De Usuario
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(6) Mount the heater to the electron gun chamber.
The heater consists of 2 parts. Fix them with the heater band.
(7) Put two rods of inner bake read wire
into the HV cable socket. Insert rods
correctly to pins A and B at the bottom
of the socket referring the right side
picture.
Be careful not to insert to other pins.
correctly to pins A and B at the bottom
of the socket referring the right side
picture.
Be careful not to insert to other pins.
(8) Remove the cover of baking power
connectors provided at the right side of
ion pump cover.
ion pump cover.
(9) Connect the lead wire for OUTER
BAKE and INNER BAKE to the
connectors.
Put the cover again. (A protection is
provided so as if the cover is not put,
baking will not start)
connectors.
Put the cover again. (A protection is
provided so as if the cover is not put,
baking will not start)
(10) Attach the baking protection cover to
the top part of the electron gun. It is for
isolation from high temperature part.
( A protection is provided so that
baking will not start if the cover is not
attached correctly)
isolation from high temperature part.
( A protection is provided so that
baking will not start if the cover is not
attached correctly)
NOTICE
Confirm that heater lead wire does not touch to the heater directly.
CAUTION
Electron gun/ion pump baking
Beware of high
temperature
The electron gun and ion pumps are heated at about
250
°
C in order to keep the electron gun in a high
vacuum. Never touch these parts. Otherwise you will
suffer a burn.
suffer a burn.