LI-COR LI-7815, Instruction Manual

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Section 6. Maintenance
4 Remove the column.
It is secured with two screws. Remove them. When the column mounting brackets
are removed, the column can come apart easily, and the silica gel beads can fall out.
Be careful when handling the column so that it does not come apart.
5 HOLDING THE COLUMN AWAY FROM THE CASE, separate one end by grasping one cap and
pulling it off of the column.
Pour out the silica gel beads. They can be disposed of in municipal waste.
6
Locate a new packet of silica gel beads in the accessories kit.
7 Fill the column with fresh silica gel beads.
There may be a little more than is needed. Dispose of the extra silica gel beads.
8
Reassemble the filter and caps; connect the tubes, and tighten the screw clamps securely.
Important: Tighten the clamp screws securely. The clamps hold the caps onto the
tube; the caps hold the silica gel beads in the tube. If the clamps are not tight, the
caps will be forced off when the tube is pressurized during shutdown. The tube
will open and the silica gel beads will spill in the case. It is a situation easily
avoided by tightening the clamp screws securely.
6-6 LI-7815 CO₂/H₂O Gas Analyzer