Metrohm 871 Advanced Bioscan - Manual (Page 35)

4.3 Maintenance and servicing
871 Advanced Bioscan / Instructions for Use 8.871.1003
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Also change the precolumn when you change the separation column.
1 Remove old column
• Switch off flow cell.
• Switch off pump drive of the 818 IC Pump.
• Unscrew connection capillary 21 to flow cell from the column.
2 Connect new column to injector
• Remove end caps from column.
• Screw preheating capillary 31 to inlet end of separating col-
umn (note flow direction).
3 Rinse column
• Place beaker beneath the column outlet.
• Switch on 818 IC Pump and rinse column with eluent for ca.
10 min with 0.3 mL/min and for ca. 10 min. with 1.0 mL/min,
then switch off pump.
4 Connect column to measuring cell
• Screw connection capillary 21 to measuring cell to outlet end
of separating column.