3 problems in attaching the dosing drive – Metrohm 700 Dosino User Manual

Page 16

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2. Setup

700 Dosino, Instructions for Use

10

Never use force when attaching the dosing

drive!

70 0 Dosin o

10 ml

10 ml

Place the dosing drive (700 Dosino) on the
710 Dosing unit.

The green line on the Dosino must coin-
cide with the short white marking of the
dosing unit; see accompanying diagram.
The guide cams of the Dosino must be lo-
cated in the openings provided for them.

Lock the drive, i.e. turn to the left
(counterclockwise) until the stop is
reached.

The green line on the Dosino must now
coincide with the long white marking of
the dosing unit; see accompanying dia-
gram.

2.2.3 Problems in attaching the dosing drive?

If the dosing unit cannot be attached then either the stopcock
washer of the Dosino or the centering tube of the dosing unit may
not be in the exchange position.
The stopcock washer carrier must fit in the dosing unit recess
provided for it. Please consult the previous diagrams.

The peg of the piston must be flush with the upper
edge of the dosing unit.

How to adjust the dosing piston:

Each Dosino is supplied with piston pliers (6.1546.030); see
accompanying diagram.

Press the white knob of the piston pliers. Two wire loops ap-
pear at the piston pliers tip.

Position the piston pliers so that these wire loops surround the
piston peg.

If you now release the knob carefully the piston pliers will snap
shut and you can pull out the piston with the white knob (some
force is required).

Take care with the 2 mL cylinder! In contrast to the larger
dosing cylinders it is possible to pull out the piston completely.
You should only pull out this piston so far (and carefully) that

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