Metalyser
®
Soils HM4000
Instruction Manual v3.0
Electrodes
Counter electrode
– this electrode needs the least maintenance
of all. A quick visual inspection to ensure the electrode has no
physical damage.
Reference Electrode
– this electrode contains a liquid filled tube,
the liquid can be replenished by using the
Reference Electrode
Fill Solution
provided in the kit. Perform a visual inspection to
ensure it has no physical damage and ensure there is enough
liquid in the outer tube and that there are no bubbles in the inner
tube.
For best performance, the Reference Electrode tip
should be kept wet. Please remove cap before use, and
replace after use.
Always place a few drops of deionised water in
the cap before replacing it on the electrode.
Working Electrode
–
the electrode surface should be examined
for cracks and imperfections that will affect analysis. The
electrode should be regularly polished to remove contaminants
and ensure a smooth mirror-like surface using the supplied glass
platen, polishing cloth and polishing slurry (see below). Ensure
that the protective rubber cap is replaced during storage of the
electrode to prevent damage to the electrode surface. After
polishing, conditioning steps needs to be undertaken before
analysis. The different working electrodes can be identified by the
number of connecting pins and are not interchangeable.
Electrode WE1 (6 pins) is to be fitted in position WE1.
Electrode WE2 (3 pins) is to be fitted in position WE2.
Do not mix up the electrodes.
