Flow Cells With Fiber Optical Connectors - Knauer Smartlibe UV Detector 2500 Handbuch

Simple Maintenance

Flow cells with fiber optical connectors

Fig. 33
4. Insert the PEEK distance plate again and then the shutter.
5. Fasten the outer thread carefully.
When fastening the threads, the rod shaped light guide is pushed back in
the correct position inside the cell. Inserting a distance plate thus enlarges
the path length for 0.75 mm. It is not necessary to change the PTFE
sealing ring when adjusting the path length.
Changing the path length of flow cells with fiber optical connectors can be
done in the same way. In these cells the screwthread is replaced by a
special adapter Fig. 33. They additionally contain a lens to focus the light
onto the optical fibers.
Fiber optical connector with lensholder
Lens
PEEK shutter
PEEK distance plate
Gasket holder
Light guide with PTFE seal
Fiber optical connector of a preparative flow cell
33