BUCHI PrepChrom C-700 - Manual (Page 92)

7 | Maintenance BÜCHI Labortechnik AG
92/110 PrepChrom C­700
NOTICE
Risk of flow cell window damage.
Touching the flow cell windows with bare hands can damage the surface of the
cell window.
u Wear protective gloves.
u Remove both flow cell windows (4).
u Remove all PTFE seals (5).
u Reassemble the flow cell in reverse order to the disassembly.
u Depending on the required thickness of the liquid layer, the installation of
the flow cell windows can be changed.
u The optical path can be increased by using the installation positions (b) or
(c).
• Default installation position is (a).
Follow­on tasks
u Check the cell for any impurities (dust, hairs) using a magnifier.
• Any impurity within the cell will increase the signal noise.
u Install the flow cell according the following task:
• 7.2.2 Flow cell, cleaning [ } page 88]
7.3.4 UV Detector lamp, replacement
7.3.4.1 Detector lamp, removal
Preliminary tasks
u Purge the system with a suitable solvent (isopropanol) and with air.
u Air purge the system.
• 6.9 Air purge [ } page 85]