Metrohm 2.889.0010 889, Руководство пользователя

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3.4 Tubing
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16 ￭￭￭￭￭￭￭￭
889 IC Sample Center
1 Connection to the syringe module
Port 3 of the injection valve.
2 Connection to the needle
Port 4 of the injection valve.
3 Connection to the high pressure pump
Port 1 of the injection valve.
4 Connection to the separation column
Port 6 of the injection valve.
5 Sample loop
Port 2 and 5 of the injection valve.
3.4 Tubing
The 889 IC Sample Center is equipped with the following standard tubing:
Tubing/Capillary Material/Dimensions
Standard sample needle and
capillary (15 µL) SS (inert-coated): 97 mm x 0.8 mm OD
x 0.25 mm ID
ETFE (Tefzel): 200 mm x 1/16" OD x
0.25 mm ID
Buffer tubing from the high
pressure valve to the syringe
valve (1000 µL) ETFE (Tefzel): 1275 mm x 1/16" OD x
1.0 mm ID
Tubing from the syringe valve
to the washing bottle PTFE: 400 mm x 1/18" OD x 1.6 mm ID
Tubing from the syringe valve
to the outlet tubing PTFE: 400 mm x 1/8" OD x 1.6 mm ID
Observe the following when mounting new tubing or capillaries:
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Do not tighten the connectors excessively. This could block the flow path.
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Make sure that you always use tubing volumes which are suitable for the
other components in the flow path.
3.4.1 Tubing guide
In order to prevent the rinsing tubing from hindering the horizontal move-
ment of the needle unit, use the tubing guide in the collection pan under
the injection valve:
Figure 8 Guiding the rinsing tubing