Metrohm Variocell for Bioscan – 6.5331.1X0 - Manual (Page 16)

4.1 Maintaining the Variocell ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
10 ￭￭￭￭￭￭￭￭ IC Equipment set Variocell for Bioscan
Cleaning the components of the Variocell
1 Cleaning the spacer
￭ Remove the spacer.
￭ Rinse with ultra pure water and dry.
2 Clean the auxiliary electrode
￭ Carefully clean the auxiliary electrode (1-3) with a soft cloth
soaked with acetone or methanol.
Avoid any use of force while doing so; the electrode could
become damaged.
￭ Rinse off the interior side of the cell with ultra pure water and dry
thoroughly.
3 Cleaning the working electrode
See also (see Figure 2, page 7).
￭ Remove the working electrode (1-9) from the working electrode
holder (1-10).
To do so, pull back the mounting ring (2-1) and use the tips of
your fingers to remove the electrode from the silicone holder
(2-2).
Do not use any tools to remove the working electrode. Using
tools could cause the edges of the working electrode to become
damaged, which might have an influence on the measuring
results.
￭ For the cleaning sequence, please follow the instructions con-
tained in the chapter entitled Cleaning the working electrode in
the 871 Advanced Bioscan manual.
Mounting the Variocell
1 Assembling the Variocell
Caution
Make sure that ...
￭ … the spacer is undamaged and
￭ … the surfaces of the spacer are dry and free of dust.
Remove fingerprints with acetone or methanol.