BUCHI DuMaster D-480 - Manual (Page 235)

Operation Manual D-480 ©BÜCH Labortechnik AG
8 - Maintaining the instrument 235
Drying tube filling (large)
The following picture shows the fillings of the drying tube:
Legend:
1 Empty space
2 Cotton (10 mm)
3 Sicapent® (314 mm)
Safety instruction
Strictly observe the safety instruction "Filling the drying tube" under Warning notes during operation
(on page 24).
Filling the drying tubes
Proceed as follows:
 Disconnect both tubes.
 Remove the glass tube.
 Detach the screw-on caps.
 Leave approx. 5mm space (1) at the end of the tube.
 Plug approx. 10 mm of cotton (2) into the tube so that it comes to rest above the empty space
(3).
 Fill in enough Sicapent® (3) to leave approx. 15mm space at the top of the tube. To do so, tap
the tube wall with a piece of wood or cork so as to prevent cavities. If the Sicapent® cannot be
tapped properly, also a glass rod for slight compacting can be used.
 Clean any Sicapent® off the end of the tube.
 Plug approx. 10 mm of cotton over the Sicapent®.
 Replace the screw-on caps and tighten them on the glass tube by hand.
 Push the glass tube between the clamps and close the tubes.