Chapter 2: Prerequisites
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7
Refer to Appendix C: Freeze Dryer Specifications for dimensional drawings
of the Freeze Dryer. The space for benchtop models must be large enough to
accommodate the vacuum pump, which will be used with the freeze dryer.
Vacuum Pump Requirements
A vacuum pump must be provided by the user. A vacuum pump with a
displacement of 86 liters per minute and 0.0002 mBar ultimate pressure is
adequate for most samples. The inlet fitting on the vacuum pump must be
suitable for 3/4" ID vacuum hose, which is provided. It is recommended that
the vacuum pump is equipped with an exhaust filter to minimize oil mist
exhausting from the vacuum pump. The operating vacuum level may be set
on the freeze dryer. The higher the pressure is set, the more likely it is that
oil mist will be exhausted.
Vacuum pumps used with 115V models should be equipped with a 115V, 15
Amp NEMA 5-15P plug. Vacuum pumps used with 230V models should be
equipped with a reverse IEC plug. This plug is included with 230V models.
This will allow the vacuum pump to be plugged into the receptacle on the
back panel of the freeze dryer. See Appendix D: Freeze Dryer Accessories
for vacuum pumps available from Labconco.
Chamber or Manifold Requirements
A 12-port drying chamber is included with the unit. This allows samples to
be attached to the freeze dryer. See Appendix D: Freeze Dryer Accessories
for available chambers and manifolds.
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