133
Fig. 119
After having determined the buffers for buffers 1 - 3, the selection is to be confirmed with <Accept
values>. If the distance between 2 buffer values is too small (for instance, buffer 1 “6.87“ and buffer 2
“7.00“), an error message will appear:
Fig. 120
5.2 Reagents
– Dosing unit
You can set up the attachment size in the menu (20 or 50 ml), perform an attachment change and
enter reagent data, which are put out into the GLP documentation during manual titration.
Fig. 121
5.2.1
Replacing the dosing unit
As a rule, the need for replacing the dosing unit occurs only rarely. The dosing unit has to be replaced,
if such a replacement becomes necessary as a result of a defect, or of an inspection of the titration
unit.
The dosing unit is equipped with lateral ribs around its circumference, with one of these ribs being in
double design. This double rib serves as a mark for the correct placement of the dosing unit (fig 125.).
With <OK/ENTER> confirm the <Unit size>
