Metrohm 940 Professional IC Vario ONE/SeS/LPG - Manual (Page 33)

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4 Installation
940 Professional IC Vario ONE/SeS/LPG (2.940.1450)
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Connecting the MCS
Figure 5 Connecting the MCS
1 Air aspiration capillary
For drawing in air with low CO
2
content (via
the CO
2
adsorption cartridge).
2 Pressure screw, short (6.2744.070)
Installed on the air aspiration capillary.
3 Luer coupling (6.2744.120)
Mounted on the air aspiration capillary with
a pressure screw (6.2744.070).
CAUTION
If the MCS is not used, the input and output must be sealed with the
threaded stoppers (6.2744.220).
4.13.2 Installing adsorption cartridges
The suctioned air has to have the lowest CO
2
content possible in order for
the CO
2
to be removed from the eluent as efficiently as possible. In order
to achieve this, the air is aspirated through a CO
2
adsorption cartridge
(6.2837.000).
However, the CO
2
adsorption cartridge is sensitive to humidity; the CO
2
adsorption cartridge becomes clogged when wet. In order to protect the
CO
2
adsorption cartridge, an H
2
O adsorption cartridge (6.2837.010) is
also installed.
Accessories For this step you need the following accessories:
￭ Adsorption cartridge holder (6.2057.080) with 4 clips, an adapter
(6.1808.190) and a piece of PVC tubing.