Freeze-dryer Beta 1-8 LSCbasic
Freeze-dryer Beta 2-8 LSCbasic
Version 03/2018, Rev. 1.5 of 09/03/2020 • sb-dc
Translation of the original operating manual
3.7.2 Hazards caused by the refrigeration system (natural, flammable refrigerants)
Risk of explosion due to refrigerants
The refrigerants used are highly flammable and can form an explosive
mixture if their concentration in the ambient air is sufficiently high.
There is an explosion hazard.
• Work on the refrigeration system of the freeze-dryer must only be
carried out by qualified specialist personnel who have been trained to
handle flammable refrigerants!
• Ensure good ventilation and make sure that no ignition sources (e.g.
soldering iron, welding equipment) are present!
3.7.3 Hazards caused by the refrigeration system (non-flammable refrigerants)
Risk of poisoning caused by the refrigerant
During its decomposition (e.g. due to naked flames or hot surfaces),
hazardous/toxic gases are released.
Contact with the decomposition products may cause severe damage to
health.
• Only qualified persons are authorised to perform work on the
refrigeration system of the freeze-dryer!
• Do not eat, drink, or smoke when working on the refrigeration system!
Risk of cold burns or frostbite caused by the refrigerant
When work is performed on the refrigeration system of the freeze-dryer,
refrigerant may escape in the liquid or gas state and under high pressure.
In the case of skin contact with liquid refrigerant, cold burns or frostbite
may result.
• Only qualified persons are authorised to perform work on the
refrigeration system of the freeze-dryer!
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