Metrohm 874 - Figure 13 Coulometric KF Titration Cell

3.11 Inserting the heating tube into the KF titration cell
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874 Oven Sample Processor
6.1830.030
6.1446.170
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2
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Figure 13 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
5
Shift the tip vertically in such a way that the outlet opening of the
tubing is immersed as deeply as possible. The tip must not however
be permitted to get in the way of the stirring bar in the KF titration
cell. Afterwards give the heating tube stopper its final tightening.
Volumetric KF titration cell
￭ Remove the protective cover from the tip of the heating tube and the
E.3010.032 O-ring. The latter you will still need.
￭ A 6.2730.020 septum stopper is enclosed with every KF titrator
made by Metrohm. Disassemble this septum stopper into three parts
and remove the septum. It will not be required.