EN - Page 14
2.
Filling of the test cell
The cell can be filled with approx. 30 ml of electrolyte through the opening in the
cover. Pour in the last ml slowly; observe the filling level in the hole for the reference
electrode, which may rise with a delay. This should be filled to a maximum of halfway
to avoid overflowing when setting the reference electrode.
If the hole does not fill with electrolyte, an air bubble in the Haber-Luggin capillary
blocks the electrolyte flow. Set the measuring cell at a slight angle so that the air
bubbles can escape.
3.
Use of the analyte compartment with membrane
In addition, an intermediate plate (analyte
compartment) can be inserted. These are
optionally available in PP or PTFE and are
supplied with the necessary longer screws.
A membrane is inserted between the analyte
compartment and the counter electrolyte
compartment. This membrane separates
anolyte and catholyte. The working electrode
is thus protected from the reaction products
of the counter electrode.
Membrane
Analyte
compartment
Sample
Reference
electrode
