Metrohm 872 Extension Module IC Pump - Manual (Page 9)

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1 Introduction
872 Extension Module IC Pump
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1 Introduction
1.1 Instrument description
Existing 850 Professional IC instruments can be expanded to include addi-
tional functions by means of 872 Extension Modules. Every 850 Professio-
nal IC instrument can be supplemented with up to 3 extension modules.
The 872 Extension Module – IC Pump permits the installation of an
additional IC high pressure pump «iPump» in a Professional IC System.
Thanks to the 872 Extension ModuleIC Pump, an isocratic 850 Professio-
nal IC System can be supplemented to form a quaternary gradient system.
This means more flexibility for the configuration of the required IC system.
The extension module is operated with MagIC Net software, just like the
IC instrument. When it is connected to an 850 Professional IC instrument,
MagIC Net recognizes the extension module automatically and checks its
functional capability. It controls and monitors the unit IC instrument –
extension module(s), evaluates the measured data and administers it in a
database.
The 872 Extension Module – IC Pump comprises the following com-
ponents:
Eluent degasser
The eluent degasser removes gas bubbles and dissolved gases from the
eluent. For degassing, the eluent flows into a vacuum chamber through a
special fluoropolymer capillary.
High pressure pump
The intelligent and low pulsation high pressure pump pumps the eluent
through the system. It is equipped with a chip on which its technical spec-
ifications and "life history" (operating hours, service data, ... ) are saved.
Inline filter
Inline filters protect the separation column securely against possible con-
tamination from the eluent. Inline filters can however also just as well be
used for the purpose of protecting other sensitive components against
contaminations in the solutions used. The fine 2 µm material of the readily
and easily replaceable filter platelets removes particles such as bacteria
and algae from the solutions.