Freeze-dryer Alpha 1-4 LDplus
Freeze-dryer Alpha 2-4 LDplus
8 Maintenance and service
Version 11/2006, Rev. 2.2 of 17/10/2016 • sb
Translation of the original operating manual
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8.1.3 Exhaust filter (oil mist separator)
Please refer to the separate operating manual of the vacuum pump and
the exhaust filter!
The oil mist that is emitted by the vacuum pump in quantities that depend
on the working pressure must be led to the outside or to an exhaust hood
or similar. If this is not possible, the pump must be equipped with an
exhaust filter (oil mist separator).
• Observe the liquid level in the collecting vessel of the filter.
• Remove the condensate in time (please refer to the information
provided by the manufacturer in the separate operating manual).
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8.1.4 Vacuum sensor
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.
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8.1.5 Accessories
For the care of the accessories, special safety measures must be
considered as these are measures that will ensure operational safety at
the same time.
Chemical reactions as well as stress-corrosion (combination of oscillating
pressure and chemical reaction) can affect or destroy the metal and plastic
parts. Barely detectable cracks on the surface can expand and weaken the
material without any visible signs.
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