Metrohm 2.872.0010, Manual

Page: 39 / 79

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4 Installation
872 Extension Module IC Pump
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31
Note
The eluent aspiration tubing is already installed in the newly delivered
instrument. The following installation instructions need
not be carried
out at the time of initial installation.
Connecting inlet to the high pressure pump
5
1 2 3 4
Figure 21 High pressure pump – Connect inlet
1 Pressure screw
For connecting the coupling (21-
2
) to the
pump head input capillary (20-
7
) .
Can be ordered together with the coupling
under the number 6.2744.230.
2 Coupling 6.2744.230
For connecting the eluent aspiration tubing
(21-
4
) to the input of the high pressure
pump.
3 Clamping screw 4 Eluent aspiration tubing
Eluent aspiration tubing 6.1834.080 or
6.1834.090.
5 Backup ring
1 Connecting coupling
Fasten the coupling (21- 2 ) with a pressure screw (21- 1 ) on the pump
head input capillary (20- 7 ) .
2 Connecting eluent aspiration tubing
Caution
The clamping screws must be tightened carefully. To tighten, grip
the coupling
(21-
2
) with the 6.2739.000 key and grip the clamp-
ing screw (21-
3
) with the 6.2621.050 wrench.
￭
Plug the eluent aspiration tubing (21-
4
) into the coupling (21-
2
) .
￭
Tighten clamping screw (21-
3
) .