Gilson 155 User Manual page 99

Uv/vis detectors
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Maintenance
4-8
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To replace the inlet tubing:
When replacing the inlet tubing, ensure that its
ID is appropriate for the flow cell (analytical or
preparative). See
Appendix E
replacement parts.
1
Remove the inlet tubing clamp and set it aside.
2
Unscrew the male nut that connects the inlet
tubing to the flow cell assembly.
3
Remove the inlet tubing. To do this, hold the
flow cell assembly in one hand. Grasp the
shorter segment of tubing leading away from
the flow cell assembly. Then gently twist the
tubing to the left to unseat the circular portion
from the groove around the flow cell assembly.
Once the circular portion is free, pull down on
the tubing to remove the segment from inside
the flow cell assembly.
4
If necessary, position the fitting and ferrule on
the flow cell end of the replacement inlet
tubing. The tubing should extend beyond the
ferrule. See diagram below.
5
Insert the inlet tubing into the bottom of the
flow cell assembly. Position the circular segment
of tubing over the flow cell and seat it into the
groove around the flow cell.
6
Make sure the inlet tubing is seated in the flow
cell assembly. Slightly finger tighten the fitting.
Don't completely tighten it yet.
4
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