Metrohm 940 Professional IC Vario ONE/Proep 2 - Manual (Page 11)

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1 Introduction
940 Professional IC Vario ONE/Prep 2 (2.940.1120)
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Peristaltic pump
The peristaltic pump is used for pumping sample and auxiliary solutions. It
can rotate in both directions.
6-port valve
The 6-port valve mimics the injection valve in its design. It is used during
sample preparation and serves as a unit for switching between two differ-
ent liquids, such as switching between sample dilution and direct injection
during sample dilution.
Separation column
The intelligent separation column separates different components accord-
ing to their interactions with the column. Metrohm separation columns
are equipped with a chip where their technical specifications and history
(start-up, operating hours, etc) are stored.
1.2 Intended use
The 940 Professional IC Vario ONE/Prep 2 is used for the determination of
cations and anions without suppression using ion chromatography.
The present instrument is suitable for processing chemicals and flammable
samples. Usage of the 940 Professional IC Vario therefore requires the
user to have basic knowledge and experience in handling toxic and caustic
substances. Knowledge with respect to the application of the fire preven-
tion measures prescribed for laboratories is also mandatory.
1.3 Safety instructions
1.3.1 General notes on safety
WARNING
This instrument may only be operated in accordance with the specifica-
tions in this documentation.
This instrument has left the factory in a flawless state in terms of technical
safety. To maintain this state and ensure non-hazardous operation of the
instrument, the following instructions must be observed carefully.