Product Manual for IonPac CS16
Page 52 of 65
6.1.2.
Replacing Column Bed Support Assemblies
If the column inlet bed support is determined to be the cause of the high back pressure, it should be replaced. If the bed
support is contaminated and/or deformed, it may be the cause of poor efficiency and/or poor peak shape. To change the inlet
bed support assembly, refer to the following instructions, using one of the two spare inlet bed support assemblies included in
the Ship Kit.
A.
Disconnect the column from the system.
B.
Carefully unscrew the inlet (top) column fitting.
Use two open-end wrenches.
C.
Remove the bed support.
Turn the end fitting over and tap it against a benchtop or other hard, flat surface to
remove the bed support and seal assembly. If the bed support must be pried out of the end fitting, use a sharp
pointed object such as a pair of tweezers, but be careful that you do not scratch the walls of the end fitting. Discard
the old bed support assembly.
D.
Place a new bed support assembly into the end fitting.
Make sure that the end of the column tube is clean and
free of any particulate matter so that it will properly seal against the bed support assembly. Use the end of the
column to carefully start the bed support assembly into the end fitting.
IonPac
CS16
IonPac
CS16
IonPac
CS16
5-mm
Columns
3-mm
Columns
0.5-mm
Columns
Part
(P/N)
(P/N)
(P/N)
Analytical
or
Capillary
Column
057573
059596
075401
Guard
Column
057574
059595
075402
Bed
Support
Assembly
042955
056823
N/A
End
Fitting
052809
052809
N/A
CAUTION
!
If the column tube end is not clean when inserted into the end fitting, particulate matter may obstruct a
proper seal between the end of the column tube and the bed support assembly. If this is the case, additional
tightening may not seal the column but instead damage the column tube or the end fitting.
E.
Screw the end fitting back onto the column.
Tighten it fingertight, then an additional 1/4 turn (25 in x lb). Tighten
further only if leaks are observed.
F.
Reconnect the column to the system and resume operation.
NOTE
!
Replace the outlet bed support ONLY if high pressure persists after replacement of the inlet fitting.
Document No. 031747-05
© 2010 Dionex Corporation
December 2010
Содержание IonPac CG16
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