Preparative Flow Cell - Buchi UV Monitor C-630 Handbuch

14
Fig. 10
SOP 4

Preparative flow cell

Stainless steel
shutter
Gasket holder
Sectional view of a preparative flow cell
Cleaning a preparative flow cell. This instruction applies to the
preparative flow cell
The preparative flow cells have a rod shaped light guide instead of the
concave lens in the analytical cells.
1. Unscrew the outer thread with a hexagonal spanner
2. Take out the stainless steel shutter and the PEEK distance plate
(not present in A4069).
3. Get hold of the gasket holder with the light guide by grasping it with
a pair of tweezers, using the indentations on the outer side of the
gasket holder.
4. Push out the light guide and strip the PTFE sealing ring in order to
clean the lens.
5. Reassemble the cell in reverse order. Use a new PTFE sealing
ring after every disassembly to ensure the consistence of the flow
cell.
Büchi UV Monitor C-630
Screw thread
PEEK distance plate
Light guide with
PTFE seal