Metrohm 807 Dosing Unit - Manual (Page 16)

2.3 Cylinder unit
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807 Dosing Unit
2.3 Cylinder unit
1
2
3
4
5
Figure 3 Cylinder unit
1 Piston stopper
Coupling for the piston rod of the Dosino. 2 Dosing piston
For ejecting and aspirating a solution.
Material: ETFE
3 Dosing cylinder (Glass: 6.1574.XXX,
ETFE: 6.1575.XXX)
Contains the solution for dosing. Volume
2 mL , 5 mL, 10 mL, 20 mL or 50 mL.
Material: Borosilicate 3.3 or ETFE 4 Centering tube
Is actuated by Dosino and rotates the entire
inner cylinder unit, together with dosing cyl-
inder, cylinder base and the valve disc
mounted within.
Material: PETG or PVDF
5 Cylinder base
Seals the dosing cylinder and contains the
valve disc.
Material: PTFE / Graphite