Metrohm 861 Advanced Compact IC - Manual (Page 40)

2 Installation
861 Advanced Compact IC / Instructions for Use 8.861.1033
30
sure pump.
• Close the rotary knob on purge valve 37 by turning it in a
clockwise direction (see Figure 3 and Figure 4 and Figure 5).
• Remove the syringe from connection 2.
5 Rinse pulsation dampener
• Place a beaker beneath the column connection capillary 26.
• Click the <On> button for IC pump to switch on the high-pres-
sure pump and rinse the pulsation dampener 60 filled with
isopropanol for approx. 10 min with eluent.
• Click the
<Off>
button for
IC pump
to switch off the high-pres-
sure pump.
6 Reduce flow rate
• Reset the original flow rate under Flow (e.g. 0.5 mL/min ).
• Click <Send to unit> to send this value to the 861 Advanced
Compact IC.
• Click <Save> to save the values.
2.7 Precolumns and separating columns
2.7.1 Precolumns
The use of easily exchangeable precolumns protects the separating
columns and prolongs their lifetime. The precolumns available from
Metrohm are either real precolumns or precolumn cartridges, which are
used together with a cartridge holder. For the installation of a preco-
lumn cartridge into the accompanying cartridge holder see the attached
leaflet.
The precolumn that is suitable for your separating column can be
found in the Metrohm IC Column Catalog which can be obtained
from your local Metrohm agency, the data sheet accompanying your
separating column, the product information about separating columns
that can be found under http://www.metrohm.com , ion chromatogra-
phy products, or let your agency advise you directly.
New IC precolumns are normally filled with solution and sealed at both
ends. Before the precolumn is installed in the system, it must be en-
sured that this solution is freely miscible with the eluent used (check
manufacturer's specifications).