Refrigeration System; Vacuum Sensor - Christ Beta 1-8 LSCbasic Operating Manual

8.1.8

Refrigeration system

DANGER
WARNING
WARNING
→
8.1.9

Vacuum sensor

NOTE
Version 03/2018, Rev. 1.5 of 09/03/2020 • sb-dc
Translation of the original operating manual
Risk of explosion due to refrigerants (natural, flammable
refrigerants)
The natural 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!
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!
Risk of poisoning caused by the refrigerant (non-flammable
refrigerants)
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!
The refrigerant circuit is a closed system. Only certified and qualified
persons are authorised to perform work on the refrigeration system!
Please refer to the separate operating manual of the vacuum sensor!
The vacuum sensor has only a limited service life. Especially carbon-
containing substances, e.g. alcoholic compounds, reduce the service life
extremely.
•
The vacuum sensor is maintenance-free.
•
Remove any soiling on the outside with a cloth.
Freeze-dryer Beta 1-8 LSCbasic
Freeze-dryer Beta 2-8 LSCbasic
8 Maintenance and service
79 / 107