Freeze-dryer Alpha 1-2 LSCbasic
3 Safety
32 / 111
Version 07/2022, Rev. 1.0 of 19/07/2022
• sb-ja
Translation of the original operating manual
3.7.8
Oil-sealed vacuum pump: hazards caused by hot and contaminated vacuum
pump oil
WARNING
Risk of scalding caused by the vacuum pump oil
When working on the vacuum pump and exhaust gas filter (especially
when changing the oil or filter), the maintenance personnel are exposed to
the hot vacuum pump oil.
There is a risk of scalding in the event of skin contact.
• Work on the vacuum pump must only be carried out by qualified
specialist personnel!
WARNING
Risk of poisoning/infection caused by the vacuum pump oil
When working on the vacuum pump and exhaust gas filter (especially
when changing the oil or filter), the maintenance personnel are exposed to
the vacuum pump oil, which may contain harmful substances originating
from the product. In addition, synthetic oils can release toxic fumes when
they are ignited or heated above 300°C.
The inhalation of the fums that are released by the oil, or contact with the
skin, can cause severe damage to health.
• Work on the vacuum pump must only be carried out by qualified
specialist personnel!
• Ensure the environmentally sound disposal of the oil in compliance
with the local rules and regulations!
• Do not let the oil come into contact with tobacco products!
3.7.9
Hazards caused by noise
WARNING
Risk of noise-induced hearing loss
Depending on the local conditions, a harmful sound pressure level may
occur.
High sound pressure levels can cause noise-induced hearing loss.
• Wear suitable personal hearing protection if necessary!
3.7.10 Hazards caused by hot surfaces
WARNING
Risk of burns on hot surfaces
After a drying process, the surfaces inside the chamber may still be hot.
There is a risk of burns when touching the surfaces.
• Wear suitable protective clothes and gloves!
• Do not touch the surfaces on purpose!
3.7.11 Hazards caused by cold surfaces
WARNING
Risk of freezing to cold surfaces
The ice condenser coils can already be cold during the loading phase.
There is a risk of freezing to the ice condenser coils when touching the
surfaces.
• Wear suitable protective clothes and gloves!
• Do not touch the surfaces on purpose!