Metrohm 930 Compact IC Flex ChS Manual page 50

3.16 Connecting and rinsing the guard column
Accessories
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CAUTION
New guard columns are filled with a solution and sealed with stoppers
or caps on both sides.
Before inserting the guard column, ensure that this solution can be
mixed with the eluent being used (follow the information provided by
the manufacturer).
NOTE
The guard column may not be connected until after the instrument has
already been put into operation once (see Chapter 3.15, page 39). The
guard column and the separation column have to be replaced by a cou-
pling (6.2744.040) until then.
For this step, you need the following accessories:
Guard column (suitable for separation column)
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Connecting the guard column
1 Removing the coupling
Remove the coupling (6.2744.040) installed between the column
inlet capillary and the column outlet capillary for the initial start-up.
2 Preparing the guard column
Remove the stoppers or the stopper and the sealing cap from the
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guard column.
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930 Compact IC Flex ChS (2.930.1200)