Metrohm Variocell for Bioscan – 6.5331.1X0 - Manual (Page 17)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4 Maintenance - Taking out of operation
IC Equipment set Variocell for Bioscan ￭￭￭￭￭￭￭￭ 11
￭ Insert spacer.
￭ Screw together the two pieces of the Variocell.
2 Inserting the working electrode
Note
Working electrodes have a front side and a rear side. The front
side is polished smooth and glossy, while the rear side is more
matte. "Au", "Ag" or "Pt" is also engraved on the rear side of
working electrode plates made of gold, silver or platinum, respec-
tively.
The working electrode must always be inserted with the smoothly
polished, glossy side facing outward.
￭ Insert the working electrode (1-9) into the silicone holder (2-2) of
the working electrode holder (1-10) with the polished side facing
outward.
￭ Remove fingerprints with acetone or methanol.
￭ Secure the working electrode with the mounting ring (2-1).
￭ Guide the working electrode holder into the Variocell aligning it
with the clamping screw (1-8).
￭ Pull the fastening ring over the electrode cable and screw on just
tightly enough to ensure that the working electrode holder is held
firmly in place.
3 Installing the Variocell
Install the cleaned Variocell back in the 871 Advanced Bioscan. To do
so, follow the instructions in chapter Installing the Variocell, page 5.
4.2 Taking the cell out of operation
Caution
The Variocell should be cleaned and stored in its original packaging
when not in use.