Gilson 155 User Manual page 104

Maintenance
To remove the flow cell:
1 Loosen the fittings for the inlet and outlet tubing.
The inlet tubing enters the flow cell assembly
from the bottom while the outlet tubing exits
from the top.
2 Using a 1/16" Allen wrench, loosen the stainless
steel screw located on the left side of the flow cell
assembly.
3 Carefully remove the flow cell using a pair of
tweezers or by tilting the flow cell assembly
until the flow cell drops into the palm of your
hand.
Notice that there is only one way that the flow
cell fits into the flow cell assembly.
To replace the inlet or outlet tubing:
1 If you're replacing the inlet or outlet tubing or
both, remove the tubing and its fitting from the
flow cell.
2 For the outlet tubing, position a fitting and
Omnifit gripper on the flow-cell end of the
replacement tubing. Use a razor blade to cut
the end of the tubing at an angle and if
necessary use needle-nosed pliers to pull the
tubing through the Omnifit gripper. Then cut
the end of the tubing so it is flush with the
gripper. See diagram to right.
For the inlet tubing, position a fitting and new
ferrule on the flow-cell end of the replacement
tubing. The cone of the ferrule faces the fitting
and the tubing should extend beyond the
ferrule. See diagram to right.
3 Insert the fitting into the flow cell assembly.
Slightly finger tighten the fitting. Don't
completely tighten it yet.
4 Route the free-end of the tubing through the
cutout, located at the lower left of the detector's
front panel.
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