Bruker 600'54 Ascend ULH, User Manual

Page: 19 / 102

19 ZTKS0175 / Z31991 / 03
Safety
Cryogenic Agents
Electricity
WARNING
Risk of damage to life and limb due to cryogenic agents.
Risk of damage to life and limb due to not correct handling of liquid cryogenic agents.
Within the transition from liquid to gas, helium and nitrogen expand their volume,
causing closed vessels or transportation dewars to burst. The evaporating cryogenic
agents will displace the breathing air. Helium displaces the breathing air in the upper
part of the room, nitrogen displaces the breathing air in the lower parts of the room. In
case of not sufficient ventilation this may result in death by suffocation.
Liquid and gaseous cryogenic agents are extremely cold. Contact with liquid or
gaseous cryogenic agents will lead to cold burns. Contact with the eyes may cause
blindness. Refer to Warning: Low Temperature on page 21.
Thus:
• Only use cryogenic agents in well ventilated rooms. In case of doubt ask Bruker
Service.
• Wear an oxygen monitor on the body during service and maintenance work.
• Prevent any skin contact with liquid or gaseous cryogenic agents.
WARNING
Risk of damage to life and limb due to electricity.
Risk of damage to life and limb due to contact with electrical lines and damaged
insulation.
Thus:
• Work on electrical equipment must be done by an approved electrical technician.
• Keep moisture away from electrical lines to prevent short-circuits.
• Check the magnet system electrical grounding before start.
• Switch the power OFF before working on the Bruker Power Supply or further
equipment.