Metrohm 940 Professional IC Vario ONE/SeS/PP/Prep 3 - Manual (Page 68)

3.22 Connecting and rinsing the guard column
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940 Professional IC Vario ONE/SeS/PP/Prep 3 (2.940.1530)
￭ Guard column (suitable for the separation column)
Connecting the guard column
1 Removing the coupling
Remove the coupling installed between the column input capillary
and the column output capillary for the initial start-up.
2 Preparing the guard column
￭ Remove the stopper and the sealing cap from the guard column.
3 Connecting the guard column
CAUTION
When inserting the guard column, ensure that it is inserted cor-
rectly based on the marked flow direction (if specified).
￭ Fasten the input of the guard column to the column input capil-
lary using a short pressure screw (6.2744.070).
￭ Optional: In case the guard column is connected to the separation
column using a provided a connection capillary, fasten the con-
nection capillary to the guard column's output using the pressure
screw also provided.
Rinsing the guard column
1 Rinsing the guard column
￭ Place a beaker under the guard column's output.