• Shut the unit off immediately if it is defective or
malfunctioning.
• Keep packaging material away from children to
avoid danger of suffocation.
• Do not use flammable cleaning fluids (denatured
alcohol, petroleum ether, or isopropanol).
• Do not use the unit in the open air.
• Do not touch the unit with wet hands while it is
plugged in; do not allow any water to be sprayed
onto the unit. The unit must be operated only when
it is completely dry.
• Protect the unit from strong impacts.
• Connect the unit only to the mains voltage listed on
the type plate.
CAUTION - To reduce the risk of personal
injury or product/property damage:
• Use the device for the intended purpose only and in
the manner specified in these instructions for use.
Any form of improper use can be dangerous.
• Do not use the device if it shows signs of damage
or does not function properly. In this case, contact
Customer Service.
• Protect the device from dust, dirt and moisture.
2. Getting to Know your Instrument
How do ultrasonic cleaners work?
Ultrasonic cleaning is widely used in many industrial
applications and the jewelry industry. All hard materials
can be cleaned using ultrasound. Even tough stains
or dirt in hard-to-reach areas can be removed in an
environmentally friendly way. An ultrasonic generator
converts electric power into mechanical vibrations. The
generated sound waves are in the ultrasound range,
outside the range audible to human ears.
Ultrasonic cleaning takes place in a liquid medium (for
example, water with a dissolved cleaning agent). The
vibrations have a periodic effect on the cleaning fluid,
thus transferring the energy. This results in microscopic
vacuum bubbles (cavitation bubbles) in the liquid,
which implode on the item to be cleaned and thus
create a cleaning effect. All areas on the inserted item
that are accessible by water are cleaned. For heavy or
tough stains, it may be necessary to perform several
cleanings.
The device is suitable for cleaning hard, waterproof
objects, such as metal jewelry (including gold and
silver), plates, waterproof watches (with metal
wristbands), coins, cutlery, shaving heads on razors,
CDs/DVDs, etc.
Do not clean contact lenses, glasses, dentures and
orthodontic appliances, spectacles, gemstones with
a porous surface, medical instruments of any type, or
self-winding watches.
3. Package Contents
1 x Ultrasonic cleaner SUR 42
1 x Removable cleaning basket with watch holder
1 x Ring basket
1 x Instruction manual
4. Parts and Controls
1
2
3
4
5
6
Overview
1
Lid
2
Water Basin
3
LCD Display
4
Timer Button
5
Power Button
6
START Button
7
Ring Basket
8
Removable cleaning basket
9
Watch Holder
5. To Use
NOTES:
• Only use cold or lukewarm water.
• For best results, add a small amount of mild dish
soap or cleaning solution to the water.
• For best cleaning results, place the item in the
middle of the unit and add only enough water as
needed to cover the item.
• Do not use flammable cleaning fluids (denatured
alcohol, petroleum ether or isopropanol).
• Do not use soaps with a strong moisturizing
effect.
• Do not plug in the power cord until all items are
loaded into the basin and cleaning is ready to
begin.
• Place the device on a flat, stable, water-resistant
surface away from ovens or open flames.
Wristwatches
• Only clean waterproof quartz watches with metal
wristbands.
3
7
8
9