Metrohm 700 Dosino - Manual (Page 25)

2.4 Assembling the dosing units
700 Dosino, Instructions for Use
19
• Lock the housing by turning it to the left
(clockwise).
Hold the distributor tightly. Do not use force!
If all the parts fit together properly the housing
will snap into place.
• Now check that the piston and the centering
tube are positioned correctly.
The head of the piston must be flush with the
upper edge of the housing.
• Use the piston pliers to pull out the piston until
the stop is reached and press the complete in-
verted dosing unit onto a flat surface.
• Check the valve setting.
You can recognize the recess for the carrier of
the Dosino on the top of the dosing unit, see
photo.
In this recess you will again see two marking
ribs.
• Rotate the centering tube until these ribs coin-
cide.
• Refit all tubing and the adsorber tube.
rib
rib