Bruker SmartCooler BCU I, User Manual

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Safety
10 Z33119_2_003
2.4.3 Dangers from Magnetic Fields
WARNING
Risk to life due to high magnetic fields
A magnetic field of more than 0.5 mT (5 Gauss) is life-threatening for people with
pacemakers or active metal implants. Exposure to more than 8 T can cause damage to
health. Duration of exposure (8 h/day) above the limit of 200 mT can cause damage to
health. Ferromagnetic tools in the magnetic field are significantly hazardous. Disks and
electronic devices may be damaged.
u Mark the magnetic field of more than 0.5 mT (5 Gauss) before start up.
u
Keep people with active medical implants or heart pacemakers away from the 0.5 mT
(5 Gauss) area.
u
The permanent workplace of employees must be outside the 0.5 mT (5 Gauss) area.
u
Do not stay or work at magnetic fields of more than 8 T.
u Prevent exposure of more than 200 mT for more than 8 h/day.
u
Keep disks, credit cards and electronic devices away from the identified area.
u
Do not use ferromagnetic tools or items within the identified area.
u
Only use non-ferromagnetic transportation dewars or pressure cylinders for the
cryogenic agents.
u
Only use non-ferromagnetic ladders or steps.
u Remove magnetic items (jewelry, watches, pens etc.) before carrying out maintenance
work.
WARNING
Risk to life due to strong magnetic fields
The SmartCooler
TM
BCU I is magnetic and presents a potential hazard in the vicinity of a
magnet (e.g. magnetic fringe field of the NMR magnet).
u
For Ascent
TM
(all frequencies) and other magnets ≤ 700 MHz, place the BCU I outside
the 0.5 mT (5 G) and not less than 1 m from the axis of the magnet.
u
For magnets ≥ 700 MHz, place the BCU I outside the 5 mT (50 G) line and not less than
2.7 m from the axis of the magnet.