Metrohm 881 Compact IC pro – Anion - Manual (Page 48)

3.13 Injection valve
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38 ￭￭￭￭￭￭￭￭
881 Compact IC pro – Anion
1 2
3
4 5
6
1
2
3
4
5
6
7
7
7
7
Figure 19 Injection valve – connected
1 Injection valve 2 Sample loop
Connected to connectors 3 and 6.
3 Connection capillary
Connected to connector 4. Carries eluent to
the injection valve. 4 Connection capillary (column inlet
capillary)
Connected to connector 5. Carries eluent to
the separation column.
5 Connection capillary
Connected to connector 1. Carries sample to
the injection valve. 6 Connection capillary
Connected to connector 2. Carries sample to
the waste container.
7 PEEK pressure screw 6.2744.010
Replacing the sample loop
The sample loop can be replaced, depending on requirements. For addi-
tional information concerning selection of the appropriate sample loop,
see Chapter 3.13.3, page 40.
Note
Use only 6.2744.010 PEEK pressure screws for connecting capillaries
and sample loop to the injection valve.
1 Removing existing sample loop
￭ Loosen 6.2744.010 pressure screws at connector 3 and connec-
tor 6.
￭ Remove sample loop.
2 Mounting new sample loop
￭ Fasten one end of the sample loop (19-2) with a 6.2744.010
PEEK pressure screw (19-7) to connector 3.
￭ Fasten the other end of the sample loop (19-2) with a second
6.2744.010 PEEK pressure screw (19-7) to connector 6.