Freeze-dryer Alpha 3-4 LSCbasic
3 Safety
34 / 117
Version 11/2018, Rev. 1.9 of 01/12/2021
• sb
Translation of the original operating manuel
3.7.8
Dry-running vacuum pump: hazards caused by contaminated exhaust air
WARNING
Danger of poisoning/infection due to contaminated exhaust air
The exhaust air may contain harmful substances originating from the
product.
Contact with particles in the exhaust air (especially by inhalation) may
result in severe damage to health.
• Use a silencer with integrated filter elements or – depending on the
product
– guide the exhaust gases from the outlet of the vacuum pump
to a suitable treatment system in order to prevent the discharge of
harmful substances into the surrounding atmosphere! Compliance with
the national rules and regulations for the protection of the environment
must be ensured!
• Work on the vacuum pump must only be carried out by qualified
specialist personnel!
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3.7.9
Hazards caused by hot surfaces
WARNING
Risk of burns on hot surfaces
During the operation of the freeze-dryer and half an hour afterwards, the
outer surface of the freeze-dryer, especially the vacuum pump, may 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!
• Prior to performing any maintenance work on the vacuum pump or the
oil mist separator, let the components cool!
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!
• Prior to performing any maintenance work, let the chamber cool!
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3.7.10 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!
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