User guide

7|Maintenance BÜCHILabortechnikAG
92/110 PrepChromC700
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).
Followon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]