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Verfügbare Sprachen
Simple Maintenance
SOP 6
SOP 7
Analytical flow cells
Fig. 27
Cross-section drawing of an analytical flow cell
Cleaning an analytical flow cell
This instruction applies to the analytical flow cells A4061, A4042, and
A4045.
1.
Unscrew the outer threads with the 3 mm hexagonal spanner
enclosed in the flow cell´s delivery.
2.
Remove the black gasket that carries the lenses with a pair of
tweezers or by gently tapping it on a clean surface. The lens is
embedded in the gasket and sealed against the flow path with a
PTFE seal. This seal should be changed every time when
disassembling the flow cell.
3.
Take out the lenses and clean them by wiping them with a soft
cloth or with an appropriate solvent in an ultrasonic bath. Be
careful not to touch the clean lenses with the fingers.
4.
Reassemble the cell in the reverse manner, making sure that the
PTFE seal does not block the light path.
5.
Tighten the outer threads carefully with the spanner in order not
to damage the lenses.
Preparative flow cells
Washer
Gasket holder
Fig. 28
Cross-section drawing of an preparative flow cell
Cleaning a preparative flow cell
This instruction applies to the preparative flow cells A4066, A4067,
A4068 and A4069.
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 plain washer 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.
Outer thread
Gasket
Lens
PFA Sealing
Screw thread
PEEK distance plate
Light guide with
PTFE seal
29
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