
E-30
ElektroPhysik
8.2 Concave surfaces
Samples
∅
≥
100mm:
rubber gasket
∅
1,5mm and C or D mask
Note:
Only samples accessible form the upper side can be
measured.
8.3 Gold coatings (Au)
Gold coatings can be measured by means of the modified
rubber gasket D/Au (0,25mm
2
). Being resistant to
electrolyte solutions, this gasket enables measurement
of gold (AU) on smooth and even surfaces.
Its size of measuring area is the same as with the mask
D (0,25mm²). When using the modified rubber gasket
D/Au on the measuring stand, full contact pressure must
be applied to ensure maximum sealing of the mask on
the measuring surface.
The D and C masks are not suitable for measuring gold.
For larger measuring areas, you can use the rubber
gasket B.
8.4 Multi-layer coatings
The GalvanoTest 3000 is suitable for measuring
subsequently the individual coatings of multi-layer
systems (such as chrome, nickel, copper on steel) at
one measuring point. There is no need to lift the
measuring cell between the individual measurements.
Measurement of the upper layer is carried out according
to the general instructions of section 4.