Metrohm 940 Professional IC Vario ONE/ChS/HPG - Manual (Page 22)

3.1 Setting up the instrument
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940 Professional IC Vario ONE/ChS/HPG (2.940.1240)
3 Installation
3.1 Setting up the instrument
3.1.1 Packaging
The instrument is supplied in highly protective special packaging together
with the separately packed accessories. Keep this packaging, as only this
ensures safe transportation of the instrument.
3.1.2 Checks
Immediately after receipt, check whether the shipment has arrived com-
plete and without damage by comparing it with the delivery note.
3.1.3 Location
The instrument has been developed for operation indoors and may not be
used in explosive environments.
Place the instrument in a location of the laboratory which is suitable for
operation, free of vibrations, protected from corrosive atmosphere, and
contamination by chemicals.
The instrument should be protected against excessive temperature fluctu-
ations and direct sunlight.
3.2 Capillary connections in the IC system
Generally speaking, capillary connections between two components of an
IC system are made up of one connection capillary and two pressure
screws used to connect the capillary to the respective components.
Pressure screws
Three types of pressure screws are used in the IC system:
Number Designation Use
6.2744.010 / 6.2744.014 Pressure screw On the injection valve
6.2744.070 Pressure screw, short High-pressure pump, purge
valve, inline filter, pulsation
absorber, separation columns
6.2744.090 Pressure screw, long MCS, sample degasser, 12-
port valve
Pressure screws are tightened and loosened by hand. A tool is not
needed.