Freeze-dryer Alpha 3-4 LSCbasic
3 Safety
Version 11/2018, Rev. 1.9 of 01/12/2021
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Translation of the original operating manuel
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3.7
Safety notes concerning the operation
The following notes and instructions concerning the operation of the freeze-
dryer must be observed in order to protect all persons and property.
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3.7.1
Hazards caused by electricity
DANGER
Danger of life caused by electric shock
There is a risk of electric shock when touching current-carrying
components.
This may lead to ventricular fibrillation, cardiac arrest, or respiratory
paralysis.
• Only qualified electritians are authorised to perform work on the
electrical system of the freeze-dryer!
• The electrical equipment of the freeze-dryer must be checked at
regular intervals by a qualified electrician!
• Defects such as loose connections or burnt cables must be eliminated
immediately.
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3.7.2
Hazards caused by the refrigeration system (natural, flammable refrigerants)
DANGER
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!
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