Metrohm 700 Dosino - Manual (Page 23)

2.4 Assembling the dosing units
700 Dosino, Instructions for Use
17
2.4 Assembling the dosing units
Several important points must be observed when assembling the
dosing units.
The dosing cylinder and piston, in particular its
sealing lips, must not be damaged in the assembly
process.
• Place the black cylinder base with the stopcock
washer facing downwards on a flat surface.
Place the glass cylinder on it as nearly verti-
cal as possible and press it gently and as
uniformly as possible onto the cylinder base
while moving it backwards and forwards slightly.
Do not tilt!
• Check whether the glass cylinder is seated
properly on the cylinder base.
• Place the dosing piston on the cylinder as nearly
horizontal as possible.
• Insert the dosing piston as uniformly as possible
into the cylinder. Hold the outer edge of the
piston between the left and right index fingers
(for larger diameter cylinders use the middle fin-
gers as well) and carefully press the piston into
the glass cylinder with uniform pressure.
• The upper edge of the sealing lip must be flush
with the cylinder rim, see photo.