Manual
Operating instructions
Ultrasonic cleaner
Item no. 2901763 (2 L)
Item no. 2901768 (4.5 L)
Item no. 2901769 (10 L)
Item no. 2923221 (1.3 L)
Item no. 2923222 (3.2 L)
1 Intended use
The ultrasonic cleaner is intended for cleaning suitable objects using ultrasonic waves.
The appliance is only approved for connection to the 220 – 240 V/AC 50 Hz mains supply. Do
not use any other power supply.
This product is intended for indoor use only. Do not use it outdoors. Do not expose it to mois-
ture, for example, in bathrooms or similar spaces.
Using the product for purposes other than those described above may damage the product.
Improper use can result in short circuits, re, electric shock or other hazards.
This product complies with statutory, national and European regulations. For safety and ap-
proval purposes, you must not rebuild and/or modify the product.
Read the instructions carefully and store them in a safe place. Always provide these operating
instructions when giving the product to a third party.
All company and product names contained herein are trademarks of their respective owners.
All rights reserved.
2 Delivery content
Ultrasonic cleaner
Lid
Cleaning basket
Power cord
Drain hose with a hose clamp, sealing tape and lter (Item No.: 2901769)
Operating instructions
3 Up-to-date operating instructions
Download the latest operating instructions at www.conrad.com/downloads or scan the QR
code shown. Follow the instructions on the website.
4 Description of symbols
This symbol warns of hazards that can lead to personal injury or property damage.
The symbol with the lightning in a triangle indicates that there is a risk to your health,
e.g. due to an electric shock.
This symbol indicates that the product may only be used in enclosed rooms.
Never operate the appliance without water to avoid damaging it.
Maintain water level above 2/3 of the tank capacity.
CAUTION! Hot liquid and hot lid. Risk of scalding.
CAUTION! Ensure that the earthing is connected correctly. Risk of electric shock.
Never ll ammable liquids into the tank.
5 Safety instructions
Read the operating instructions carefully and adhere in particular to the safety
instructions. If you do not follow the safety information and information on
proper handling in these operating instructions, we will assume no liability
for any resulting personal injury or damage to property. Such cases will
invalidate the warranty/guarantee.
5.1 Read rst
This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if
they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the haz-
ards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by chil-
dren without supervision.
5.2 General information
This product is not a toy. Keep it out of the reach of children and pets.
Do not leave packaging material lying around carelessly. It may become a dangerous play-
thing for children.
Should you have any questions or concerns after reading this document, please contact
our technical support or a professional technician.
Maintenance, modications and repairs must be carried out only by a skilled technician or
a specialist repair centre.
5.3 Handling
Please handle the product carefully. Impacts, shocks or even falls from a low height will
damage the product.
Carry the appliance only with an empty tank.
Ensure the appliance is unplugged from the power supply before emptying or lling the
tank or cleaning the unit.
5.4 Operating environment
Do not expose the product to any mechanical stress.
Protect the product from extreme temperatures, strong jolts, ammable gases, vapours,
and solvents.
Never expose the exterior of the appliance, its controls and the power cord to high humidity
and moisture.
Never switch the appliance on immediately after taking it from a cold into a warm environ-
ment. This may cause condensation to form, which can destroy the product. Allow the
product to reach room temperature before using it.
5.5 Power cord
Do not modify or repair power supply components, including the mains plug and
power cord. Never use damaged components. Danger of death from electric
shock!
The power cord should only be connected to a properly installed and earthed mains socket
with a protective earth contact. The voltage rating must correspond to the data on the
rating plate.
The mains socket must be located near the appliance and be easily accessible.
Never plug in or unplug the power cord from the mains socket or the mains connection on
the appliance when your hands are wet.
Never disconnect the mains plug from the socket by pulling on the cable. Always pull the
mains plug out of the mains socket using the intended grips.
Unplug the mains plug from the mains socket if you do not use the appliance for a long time.
For safety reasons, always disconnect the mains plug from the mains socket during thun-
derstorms.
Make sure that the power cord is not squeezed, bent, damaged by sharp edges or exposed
to mechanical stress.
Avoid excessive thermal stress on the power cord from extreme heat or cold.
Never attempt to modify the power cord. Otherwise, the power cord may be damaged.
A damaged power cord can cause a fatal electric shock.
Do not touch the power cord if it is damaged.
– First, power down the respective mains socket (e.g. via the respective circuit breaker),
and then carefully pull the mains plug out of the mains socket.
– Never use the product if the power cord is damaged.
Always lay cables so that nobody can trip over or become entangled in them. Failure to do
so could result in injury.
5.6 Operation
Consult an expert when in doubt about the operation, safety or connection of the device.
If it is no longer possible to operate the product safely, take it out of operation and protect
it from any accidental use. DO NOT attempt to repair the product yourself. Safe operation
can no longer be guaranteed if the product:
– is visibly damaged,
– is no longer working properly,
– has been stored for extended periods in poor ambient conditions or
– has been subjected to any serious transport-related stress.
Never use the appliance when there is too little or too much liquid in the tank.
Never add ammable cleaning liquids or additives to the tank.
The appliance must not be left unattended when in operation.
Never immerse any parts of the body, plants or animals in the appliance when in operation.
Never reach into the cleaning liquid while the appliance is in operation. Ultrasonic waves
are destructive to human cells.
Wear suitable earmuffs when exposed to operating noise for a long time.
The appliance and cleaning liquid can become very hot during operation. There is a risk
of scalding or burns!