Unsuited For Being Cleaned By Ultrasound; Examples Of Use - Silvercrest 100117 Operating Instructions Manual

__GRA100117_B4.book Seite 6 Montag, 2. Juni 2014 10:23 10
6.2 Unsuited for being
cleaned by ultrasound
Basically the following is unsuitable to be
cleaned by ultrasound ...
... objects consisting of or including
wood, leather, horn, tortoise shell or
fabric,
... contact lenses,
... materials with damages or a
scratched surface,
... special types of fashion jewellery such
as silver-plated fashion jewellery.

6.3 Examples of use

Jewellery / metal parts
WARNING! Risk of material
damage!
• Do not clean objects whose surfaces show
scratches, since these scratches may
deepen during the ultrasonic treatment.
• The device is unsuited for cleaning deli-
cate or porous stones such as pearls,
mother-of-pearl or corals, opal, tur-
quoise, azurite, malachite, tiger eye
and similar gems. Ask the jewellery
salesman if the jewellery may be
cleaned with ultrasound and if neces-
sary, with cleaning additives.
• Screws and loosely fastened fittings
may come off during the cleaning pro-
cess. Do not clean these objects more
than once a month and only briefly (for
a maximum of 90 seconds).
• Do not clean any mechanical watches
in this device. The precision can be af-
fected.
• The device is suitable for cleaning
gold/silver jewellery and jewellery
made from other metals such as neck-
laces, rings, bracelets as well as metal
cutlery, coins, insignia, metallic equip-
ment parts, etc.
6
GB
• Figure A: Place small objects such as
rings in the basket inset|11. In order to
prevent scratches, the objects should not
come in contact with one another. Since
the basket inset absorbs ultrasonic waves,
the effectiveness decreases and several
cleaning processes may be required.
Figure B: In order to clean metal
•
bracelets of watertight watches, fasten
the watch on the bracelet holder|10 so
the watch case is at the top.
Eyeglasses / magnifying glasses
WARNING! Risk of material
damage!
• Do not clean objects whose surfaces
show scratches, since these scratches
may deepen during the ultrasonic treat-
ment.
• All optical glasses may be cleaned in
the ultrasound bath for a maximum of
90 seconds.
• Never clean polycarbonate lenses
(plastic) in an ultrasound bath. Ask
your optician for the material of the
lenses.
• Screws and loosely fastened fittings
may come off during the cleaning pro-
cess. Do not clean the objects more
than once a month and only briefly (for
a maximum of 90 seconds).
• The device is unsuited for cleaning eye-
glass frames made from sensitive mate-
rials such as horn or tortoise shell.
• Position the eyeglasses in the basket in-
set|11 with the lenses up so they will
not be scratched.