22
Most common compounds used in freeze drying processes, if allowed to enter the
vacuum pump, will degrade the oil and cause damage to the vacuum pump.
Sugars and proteins typically will have minimal negative effect on any of the materials of
construction.
When using compounds in the freeze dryer that are hostile to the materials of construction, it is
imperative the equipment is thoroughly cleaned after use.
Rubber and plastic components that have been exposed to damaging compounds should
be removed and flushed with water.
The oil in the vacuum pump should be checked often. It must be changed if it is cloudy,
shows particles or is discolored. The useful life of vacuum pump oil can be extended if
the vacuum pump is operated for an extended period after a freeze dry run. This allows
contaminants to be purged from the hot oil. This must be done with the inlet to the pump
blocked off to prevent air from free flowing through the pump. If the pump is operated at
an elevated vacuum level (>10 mbar), oil may be expelled from the pump and damage
could occur.
With prudent maintenance the extraction freeze dryer will provide years of service. Warranty on
the affected parts will be voided if maintenance has been obviously neglected. If you have
questions about using specific compounds in the freeze dryer, contact Labconco Product Service
at 1-800-821-5525, 816-333-8811 or e-mail:
Solvent Safety Precautions
Solvents used in the extraction freeze dryer may be flammable or hazardous to your
health. Use extreme caution and keep sources of ignition away from the solvents. When
using flammable or hazardous solvents, the vacuum pump must be vented to or
operated inside a fume hood.
Hazardous materials such as strong acids or bases, radioactive substances and volatile
organics must be handled carefully and promptly cleaned up if spilled. If a sample is
spilled in the collector chamber it must be cleaned up immediately.
Warning:
The disposal of substances used in connection with this equipment may be
governed by various federal, state or local regulations. All users of this equipment are
urged to become familiar with any regulations that apply in the user’s area concerning
the dumping of waste materials in or upon water, land or air and to comply with such
regulations.
Содержание 700821500
Страница 59: ...59 Figure A 1...
Страница 61: ...61 Appendix B Dimensions Dimensions shown in inches centimeters...
Страница 62: ...62 26 5 673 mm 25 4 645 mm...