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Q
Jewellery:
necklaces, rings, earrings, bracelets, watch
chains, coins, etc.
Q
metal parts:
parts of water-tight watches, coins, medals,
badges, valves, parts of devices (shaving parts), etc.
Q
writing utensils:
pens of fountain pens, ball-point pen
covers, printer nozzles, signature stamps, etc.
the following objects are not suitable for ultrasound
cleaning:
Q
genuine pearls, semi-precious stones, costume jewellery
or soft stones such as pearls, opals, turquoise, coral,
emeralds, etc.
Q
objects that can easily be discoloured, waterlogged or
damaged.
Q
wooden items, leather items, fabric, materials with a
sensitive/already damaged surface, electric appliances,
polycarbonate lenses (thermoplastics), glasses equipped
with coated plastic lenses (even the smallest damage to
the surface layer may result in irreparable damages to the
material).
Q
mobile phones, watches, glass frames or artworks made
from tortoiseshell or abalone.
cleaning concentrate:
Q
special cleaning concentrates should be used in case of
difficult and/or stubborn dirt - such as grease, resinifica-
tions, rust, wax, pigments, etc. – that cannot be removed
with water and all-purpose cleaner.
these concentrates can be purchased conveniently at our
service center (
→
12. warranty and service).
prior to use, be sure to observe the warnings and instruc-
tions of the manufacturer.
