Metrohm 860 KF Thermoprep - Manual (Page 27)

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860 KF Thermoprep ￭￭￭￭￭￭￭￭ 19
3.10 Inserting the heating tube into the KF titration cell
The 860 KF Thermoprep can be used for either coulometric or volumetric
water determinations. The mounting of the tip of the heating tube is
accomplished in different ways for the respective KF titration cells.
Coulometric KF titration cell
￭ Remove the protective cover from the tip of the heating tube and the
E.3010.032 O-ring.
￭ Disassemble the accompanying 6.1446.170 heating tube stopper
into three parts.
6.1830.030
6.1446.170
1
2
3
Figure 17 Coulometric KF titration cell
Proceed as follows:
1 Guide the upper part of the heating tube stopper over the tip of the
6.1830.030 heating tube as shown in the illustration.
2 Guide the O-ring of the heating tube stopper over the heating tube.
3 Guide the lower part of the heating tube stopper over the heating
tube and screw the three parts together (not too tightly).
4 Insert the stopper with the tip of the heating tube into one of the
two SGJ openings of the KF titration cell