Metrohm 872 Extension Module IC Pump - Manual (Page 41)

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4 Installation
872 Extension Module IC Pump
￭￭￭￭￭￭￭￭ 33
Deaerating the high pressure pump
The instrument must be connected to the PC and switched on to deaerate
the high pressure pump.
5
1
2
6
7
5
3
4
5
Figure 22 Deaerating the high pressure pump
1 Syringe 10 mL 6.2816.020
For aspirating the eluent. 2 Luer connector
On purging needle.
3 Purging needle 6.2816.040 4 Deaerating capillary
5 PEEK pressure screws, short
6.2744.070 6 Purge valve
7 Purge valve rotary knob
1 Connecting the purging needle
￭ Push the end of the purging needle (22-3) over the end of the
deaerating capillary (22-4) on the purge valve.
2 Connecting the syringe
￭ Insert syringe (22-1) in the Luer connector (22-2) of the purging
needle (see Figure 22, page 33).
3 Opening purge valve
￭ Open the rotary knob (22-7) by approx. ½ rotation counterclock-
wise.