21
Initial Startup
KNAUER
10D User Manual V7670, Version 2.3
Setting the Optical Path Length of a
Preparative Flow Cell
WARNING!
Irritation of retina through UV light! Concen-
trated UV light can leak out from the flow cell or
the fiber optic connectors.
Switch off the device and pull the power plug.
Depending on type, the path length is factory set to 2 mm,
3 mm, or 10 mm. You can remove the spacers on one or both
sides and hence change the path length to 1.25 mm or 0.5 mm.
Prerequisite
Flow cell has been disassembled.
Tool
Allen wrench size 3
Procedure
1. Using the allen screwdriver, unscrew and remove the
threaded ring
1
.
2. Remove the cover
2
and spacer
3
. Put the spacer aside.
3. Insert the cover.
4. Using the wrench, tighten the threaded ring.
Extending the Optical
Path Length
To enlarge the optical path length, put in one or both spacers.
Legend
1
Threaded ring
2
Cover
3
Spacer
4
Seal holder (com-
pression bushing)
5
Light guide with
PTFE seal
Fig. 7
Preparative flow cell
1
2
3
4
5
