Metrohm 761 SD Compact IC - Manual (Page 26)

2 Installation
761 SD Compact IC / Instructions for Use 8. 761.1043
18
2.6.3 Connection high-pressure pump → injection valve
In order to protect the column material against hammering effects ow-
ing to injection, the supplied pulsation dampener 6.2620.150 must
be fitted between high-pressure pump and injection valve of the 761 SD
Compact IC.
Connection between pump head and injection valve (see Figure 3):
Pump head 24 → connection capillary 25 → purge valve 26 → con-
nection capillary 28 → inline filter 56 → connection capillary 29 →
pulsation dampener 30 → connection capillary 31 → injection valve
When delivered, a PEEK coupling 54 is fitted in place of the pulsation
dampener 30 between connection capillary 29 and 31. The PEEK cou-
pling should be removed and the pulsation dampener should be fitted
at the same position. Proceed as follows:
The pulsation dampener is filled with isopropanol and must be rinsed
with eluent before connection of a separating column (see Section
2.13.2).
The pulsation dampener 6.2620.150 can be operated in both direc-
tions.
1 Position the pulsation dampener
Place the pulsation dampener 30 6.2620.150 in the inner com-
partment of the 761 SD Compact IC on the bottom.
2 Remove the PEEK coupling
Remove the PEEK coupling 54 located between connection
capillary 29 and 31.
3 Connect the pulsation dampener
Connect the connection capillary 29 and connection capillary 31
to the pulsation dampener.
56
29 31
30
50
50