20 XTM0522-B1 XT H 225 X-ray System
• Do not attempt to operate the vacuum system unless it is fully connected. Ensure that
the vent valve is fully closed before powering up the vacuum system.
• Do not start the vacuum system whilst changing the filament. Damage will result if the
vacuum pumps are operated whilst open to atmosphere.
• Never try to open the X-ray source when the system is under vacuum.
• Never cover the backing pump exhaust vent.
• Never move the system while the turbo pump is running.
3.5 High voltage generator
The following warnings are identified as hazards:
• There is a risk of electrocution if you tamper with, or open the high voltage generator.
• The high voltage generator is heavy (175 kg, 386 lbs). It should only be removed by
authorised Nikon Metrology personnel.
The following warnings are identified as mandatory actions which must
be followed to prevent a hazard:
• Always ensure that the generator is operated in a dry environment.
• Always ensure the generator is earthed.
• The high voltage generator is oil filled and therefore must always be kept in an upright
position.
• Always allow a few minutes before moving the generator if it has been operating and
the system has produced X-rays.
The following warnings are identified as prohibited actions that must
not be performed:
• Never allow the cooling vent on the rear of the generator to be covered.
3.6 Mechanical
The following warnings are identified as hazards:
• The user door is heavy and care must be taken when opening and closing to prevent
injury to the operator or damage to the cabinet.
• Cabinet labyrinths should only be opened by qualified personnel. The covers are
heavy and care should be taken when removing. Systems should be radiation tested
after any work is performed on the labyrinths.
• Care should be taken when loading and unloading samples. Samples should be
securely fixed to the manipulator as otherwise they present a crushing hazard to both
users and the machine. Do not exceed the maximum load rating of the manipulator.
• Take care to ensure that samples do not make contact with the X-ray source, detector
or inside of the cabinet, especially when homing the manipulator or performing CT.
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