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VACUUM DESICCATOR STANDARD OPERATING PROCEDURE |
| "The Technical Source!" |
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| SYSTEM DESCRIPTION:
The system is made of one cubic foot fiberglass enclosure for storage of sensitive materials in vacuum or dry nitrogen.
- Size: 12"W x 12"D x 12"H
- Vacuum Level Down to ~27" of Hg
- Nitrogen Vent/Purge
- 3-Way Switch for Changing Between Vacuum and Nitrogen Lines
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| FIG. 1 SHOWS DIFFERENT COMPONENTS
1.
Fiberglass Cabinet Structure
2. Door Frame Assembly
3. Valve Assembly
4. Support Rack
5. Removable Shelves
6. Desiccant Pan |  |
| Fig. 1 Schematic of Vacuum Desiccator & Its Components |
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| OPERATION:
LOADING AND UNLOADING SAMPLES:
- Loosen the Door Lock
- Turn the 3-Way Valve Towards the Nitrogen Line
- Turn on the Main Nitrogen Valve
- Wait for a Few Minutes
- Put Your Samples Inside (Or Unload the Samples) When the Door Pops Open
- Close the Lock
- Turn on the Vacuum Pump
- Turn the 3-Way Valve Towards the Vacuum Line
- Wait Until the Pressure Gauge of the Vacuum Pump Shows 27" of Hg
- Close the 3-Way Valve (Middle Position)
- Turn off the Vacuum Pump
NOTE:
Keep Cabinet Always Under Vacuum or Nitrogen When Not Used.
CAUTION:
- Do Not Force the Door Open by Hand When Cabinet is Still Under Vacuum
- Do Not Exceed 10 psi Pressure for the Nitrogen Line
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