Replacing The Glass Cylinder - SCHOTT TITRONIC 110 plus Manual De Instrucciones

34 Set-up and first operation
2.5

Replacing the glass cylinder

The hose between the cylinder and the valve is to be unscrewed from the cylinder (see Fig. 3, item 6). Pull
the UV protection down, then loosen the black press screw (cp. Fig. 3, item 6) for the glass cylinder by
turning it anti-clockwise, and pull it off. The cylinder with the piston inside can now be removed. A new cyl-
inder with a piston is to be fitted in reverse order and then adjusted as described under chapter 2.4 "Fitting
and replacing an Interchangeable Unit". Basically, it is to be ensured that only the intended cylinder size is
fitted within an interchangeable unit, since otherwise the code in the interchangeable unit will not match
the cylinder size. The result would be an incorrect dosage. For reasons of dosage and analysis accuracy,
it is always recommended to replace the PTFE piston at the same time when a defect glass cylinder is
replaced. This applies in particular if the glass is broken, since the sealing rings of the PTFE piston may
be damaged by splinters of glass.
Please note: As a rule, the hoses and cylinder contain chemicals which may escape or be sprayed
around when the unit is dismantled. The relevant safety precautions for dealing with these chemicals have
to be observed.
Abb. 5 Installation of the glass cylinder