Malvern Instruments DEG0003, Руководство пользователя

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Vacuum Degasser User manual
Page 16 MAN 0376
To more thoroughly degas a titrant, connect the outlet of the organic channel to the
inlet a second channel and the outlet of the second channel to the pump. This
places the two channels in series and doubles the degassing capacity for the organic
portion of the titrant.
Shutdown
There are two types of shutdown procedures: long-term and short-term.
Short-term Shutdown (Overnight and Weekends)
Observe all precautions pertaining to hazardous titrants and/or those titrants that
form harmful deposits or by-products.
„
Remove harmful titrants from the Vacuum Degasser and other instruments in
the system.
Caution!
Damage caused by precipitating buffer salts in capillary tubing, or damage
resulting from this condition, is specifically excluded from warranty.
„
Flush buffer salts from the system with water by priming the MPT-2 with
demineralised water in the titrant container. Evaporation leaves salt crystals that
may form harmful deposits. Remove chloroform or titrants that can decom-
pose to form hydrochloric acid from the system.
„
For weekend storage flush 60/40% MeOH/Water through the Vacuum Degas-
ser, then turn off the Vacuum Degasser.
Long-term Shutdown and Storage
„
Follow the first two Short-term Shutdown procedural steps above.
„
Remove the column and direct the pump output tubing to a beaker. Flush the
Vacuum Degasser, first with water and then with Isopropanol.
„
Turn off the Vacuum Degasser. Then disconnect the tubing between the Vac-
uum Degasser and titrant containers, and the Vacuum Degasser and the MPT-
2. Plug all of the ports on the Vacuum Degasser.
„
Store the Vacuum Degasser in a clean, dry location.
„
Before using the Vacuum Degasser, completely purge it with the correct titrant
before reconnecting the MPT-2 and restarting the system.
MAN0376-2.0 - Vacuum Degasser.book Page 16 Friday, January 12, 2007 2:49 PM