Hitachi S-4800 manual Beware of high Temperature

(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.

(8)Remove the cover of baking power connectors provided at the right side of 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)

(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)

NOTICE

Confirm that heater lead wire does not touch to the heater directly.

CAUTION

Beware of high

temperature

Electron gun/ion pump baking

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.

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