Instruction Manual

Chapter 3: Getting Started
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9
Venting the Vacuum Pump
If any materials will be placed in the Bulk Tray Dryer that can liberate
hazardous gases when heated, the vacuum pump exhaust must be vented to a
fume hood or other ventilation device.
Electrical Connection
Plug the power cord into the receptacle on the back of the Bulk Tray Dryer and
plug the other end into a suitable power receptacle.
DO NOT ATTEMPT TO CONNECT THE BULK TRAY DRYER INTO THE
FREEZONE FREEZE DRY SYSTEM.
Chemical Resistance of Freeze Dryer Components
The FreeZone Freeze Dry System and Bulk Tray Dryer are designed to be
chemically resistant to most compounds that are commonly used in freeze drying
processes. However, by necessity, the Freeze Dryer is comprised of a number of
different materials, some of which may be attacked and degraded by certain
chemicals. The degree of degradation is dependent on the concentration and
exposure duration. Some of the major components of the FreeZone Freeze Dry
System that are susceptible to degradation are as follows:
Acids Buffers Solvents
Component Material
Acetic Acid 20% Formic Acid Trifluoroacetic Acid (TFA) Calcium Chloride Sodium Phosphate Acetone Acetonittirle Carbon Tetrochloride Cyclohexane Dioxane Methyl t-Butyl Ether (BTBE) Pyridine
Valve Stem Acetal C D D D D
Collector*
Lid & Door
Acrylic D D D D
Hoses,
Gaskets &
Valve Bodies
Neoprene C D D C C D D D C D
Flask Top Silicon
Rubber
C D D D D D C D
Chamber &
Fittings
Stainless Steel C
* An accessory glass lid is available for the Freeze Dry base units.
C – Moderate degradation; Limited use.
D – Severe degradation; infrequent use recommended; immediate
thorough cleaning
required.