Manual

2 Installation

761 SD Compact IC / Instructions for Use 8.761.1043

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.