Ulvac EGL-206M Instruction Manual page 30

(5) Checking the flow switch
Does the water flow rate meet the requirements of the electron
・
beam gun?
Is the flow switch adjusted in such a way that switch contact is
・
switched OFF when the minimum rate of water specified for the
electron beam gun flows?
Is the flow switch connected to the electron beam gun power
・
supply?
Is the float free from iron power?
・
(6) Does the hearth rotate smoothly?
(7) Is the height of the shutter appropriate?
The shutter must be located at least 70 mm above the top of the crucible.
(8) Is the crucible visible through the view port?
(9) Are the terminals on the high voltage feedthrough covered for safety?
(10) Is the electron beam gun power unit wired correctly?
(See the electron beam gun power supply instruction manual.)
Never operate EB GUN without wiring of a ground cable. For wiring of a
ground cable, read the EB power supply instruction manual carefully.
Never operate EB GUN with short-circuiting of interlock.
SECTION 4
CAUTION
DANGER
WARNING
20