Buchi DuMaster D-480, Operation Manual

Page: 233 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 233
Filling the drying tubes
Note
Note the following rules:

Observe the filling heights indicated as exactly as possible.

The tube filling must not have any cavities. Therefore, tap the tube wall with a piece of wood or
cork when filling the tubes.
If the Sicapent® cannot be tapped properly, also a glass rod for slight compacting can be used.
Since the life time depends on the amount of Sicapent®, it is recommended to achieve a mean
density as high as possible. In doing so, make sure that the carrier gas flow will not be impaired.
Drying tube filling (small)
The following picture shows the fillings of the drying tube:
Legend:
1 Empty space
2 Cotton (10 mm)
3 Sicapent® (116 mm)