Metrohm 800 Dosino - Manual (Page 26)

4.2 Switching the stopcock ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
18 ￭￭￭￭￭￭￭￭ 800 Dosino
4.2 Switching the stopcock
1
2
3
4
5
6
Figure 11 Switching the stopcock
1 Drive pin
for the rotation of the stopcock 2 Centering tube
3 Cylinder base 4 Valve disc
5 Distributor disc 6 Dosing port
The dosing unit has four ports. Two of these are located on the outside
and two on the underside of the distributor. Depending on the position of
the black valve disk, a connection is set up between the cylinder and the
opening of the white distributor associated with the port.