Metrohm 806 Exchange Unit - Manual (Page 11)

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1 Introduction
806 Exchange Unit
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1.2.3 Filling the dosing cylinder
CAUTION
If a buret tip is clogged, then it could happen that no liquid will be aspi-
rated when the dosing cylinder is being filled. A vacuum can arise as a
result.
If you then remove the exchange unit from the instrument, the piston
could destroy the dosing cylinder.
Do not fail to loosen the tubing connections on the dosing cylinder
first, before you remove the exchange unit. This will eliminate the vac-
uum.
1.3 Recycling and disposal
This product is covered by European Directive 2002/96/EC, WEEE – Waste
from Electrical and Electronic Equipment.
The correct disposal of your old equipment will help to prevent negative
effects on the environment and public health.
More details about the disposal of your old equipment can be obtained
from your local authorities, from waste disposal companies or from your
local dealer.