BANDELIN SONOREX ZE 1031 User manual

6486-001 GB/2021-04
Operating Manual
3
High-performance ultrasonic baths
Applies to:
ZE 1031, ZE 1031 DT
ZE 1032, ZE 1032 DT
ZE 1058, ZE 1058 DT
ZE 1059, ZE 1059 DT
Dokument:6486-001Sprache: GBVersion:2021-04

2/36 6486-001 GB/2021-04
© 2021
1 2 GmbH & Co. KG, Heinrichstr. 3–4, 12207 Berlin, Ger-
many
Tel.: [phone], Fax: [phone], [email protected]
Certified according to ISO 9001 and ISO 13485

6486-001 GB/2021-04 3/36
Table of contents
Table of contents
1 About this operating manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Using the ultrasonic bath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Use in medical field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Avoiding cross-contamination and infections . . . . . . . . . . . . . . . . . . 7
2.4 Keep away from children. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Risk of electric shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 Damage to health due to ultrasonic noise . . . . . . . . . . . . . . . . . . . . . . 8
2.7 Risk due to high working temperatures . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Danger from ultrasound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9 Danger from agents used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10 Disposing of sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.11 Erosion of the ultrasonic oscillating tank . . . . . . . . . . . . . . . . . . . . . . . 10
2.12 Avoiding damage to the ultrasonic bath. . . . . . . . . . . . . . . . . . . . . . . . 10
2.13 Interference with wireless communication . . . . . . . . . . . . . . . . . . . . . 11
3 Design and function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Control panel for control unit ST 15.1 . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Control panel for control unit ST 30 DT. . . . . . . . . . . . . . . . . . . . . . . . . 13
3.4 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Set-up/assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 Direct and indirect sonication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3 Sonication time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4 Pour in sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.5 Switching sonication on and off – ST 15.1 . . . . . . . . . . . . . . . . . . . . . 18
5.6 Switching sonication on and off – ST 30 DT . . . . . . . . . . . . . . . . . . . . 18
5.7 Degassing sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.8 Adding goods to be treated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.9 Removing goods to be treated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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4/36 6486-001 GB/2021-04
5.10 Emptying the ultrasonic oscillating tank. . . . . . . . . . . . . . . . . . . . . . . 20
5.11 Enabling and blocking continuous operation – ST 30 DT. . . . . . . . 21
5.12 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Cleaning and care of the ultrasonic bath. . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Performing the foil test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7 Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9 Dosing table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

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Table of contents
1 About this operating manual
This operating manual contains important and useful information for safe and
efficient use of the ultrasonic bath.
• Please read this operating manual before using the ultrasonic bath.
• In particular, please observe chapter 2Safety.
• If you pass on this ultrasonic bath, include this operating manual.
• Contact your specialist dealer or BANDELIN if you have any questions that are
not answered in this operating manual. You will find information on our ser-
vice department in chapter 6.4 Repair.
Illustrations are examples and not to scale.

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6/36 6486-001 GB/2021-04
2Safety
2.1 Using the ultrasonic bath
The ultrasonic bath can used for the following applications:
• Ultrasonic cleaning of objects of all shapes, types and sizes
• Homogenisation, emulsification
• Rapid degassing of liquids
• Sonochemical applications, e.g. for radical generation or for improved material
transport
• Preparation of samples for analysis
A solution made from water and a special agent for ultrasonic applications is used
as the sonication fluid. You will find information on the sonication fluid in chapter
5.2 Sonication fluid.
Goods to be treated may not be placed on the bottom of the ultrasonic oscillating
tank. They must be placed in the sonication fluid in an insert basket or in another
suitable container. You will find an overview of suitable accessories in chapter
10 Accessories.
If there are stains, discolouration, signs of rust or similar, you can use special
cleaning agents and indirect sonication to perform thorough cleaning.
2.2 Use in medical field
The intended medical purpose of the ultrasonic bath is the cleaning of instru-
ments. Ultrasonic cleaning is performed in the context of further steps required
when reprocessing medical devices. Please observe the hygiene requirements as
per the applicable regulations during this procedure. The ultrasonic bath is a Class
I medical device according to regulation (EU) 2017/745.
UMDNS nomenclature (ECRI/DIMDI): 14-263
Indications/application areas
Medical instruments can be cleaned in the ultrasonic bath as part of manual
reprocessing as well as before or after machine reprocessing. The instrument
manufacturer's specifications provide information on suitability for ultrasonic
cleaning.
Contraindications/exclusions
• Optical equipment, camera systems, light cables, mirrors or objects made
from or with elastic materials (e.g. catheters, ventilator system parts and flex-
ible endoscopes) are unsuitable or only conditionally suitable for sonication.
The respective manufacturer's specifications provide information on suitabil-
ity for ultrasonic cleaning.

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Safety/2
• The ultrasonic bath is not suitable for the cleaning and disinfection of contact
lenses.
• The direct sonication of inflammable liquids is not permitted.
Possible side effects/restrictions
• Ultrasound does not disinfect. However, processes, e.g. chemical disinfection,
can be accelerated in the ultrasonic bath.
• Surfaces can be mechanically attacked and coatings dissolved due to cavita-
tion erosion.
User group
The ultrasonic bath may be used by persons who are qualified and trained for
their work, e.g. in the reprocessing of instruments.
Pregnancy is not a contraindication for operating the ultrasonic bath.
2.3 Avoiding cross-contamination and infections
If you use the ultrasonic bath in the medical field, clean and disinfect the surfaces
of the ultrasonic bath on a regular basis with at least a bactericidal, yeasticidal
and, to a limited extent, virucidal surface disinfection agent to avoid cross-con-
tamination. Reprocess accessories like holders, carriers or baskets in a washer-
disinfector (WD).
At higher working temperatures, vapours and aerosols that are contaminated
with impurities from the goods to be treated can rise from the ultrasonic bath.
This can cause infections and illness. When cleaning medical instruments, avoid
bath temperatures above 40°C. If necessary, use a lid, an extraction system or
protective equipment.
2.4 Keep away from children
Children cannot see the dangers related to the ultrasonic bath. Therefore, keep
children away from the ultrasonic bath.
2.5 Risk of electric shock
The ultrasonic bath is an electrical appliance. If safety rules are not observed, a
life-threatening electric shock can result.
• Protect the ultrasonic bath against moisture and liquids. Keep the surface and
the controls clean and dry.
• Only drain the ultrasonic bath once it has been switched off.
• Disconnect the ultrasonic bath from the mains whenever you clean or main-
tain it.
• Connect the ultrasonic bath only to mains sockets with earthing contacts.

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• If you discover a fault on the ultrasonic bath, disconnect the mains plug
immediately. Do not connect a faulty ultrasonic bath to the mains.
• Have repairs performed only by the manufacturer. See chapter 6.4 Repair.
2.6 Damage to health due to ultrasonic noise
Some people may find the typical ultrasonic noise produced during processing
very unpleasant. Damage to health can result if you remain within a radius of 2 m
for long periods.
• Wear suitable ear protection.
• Use a lid to reduce noise. The ultrasonic bath can also be used inside a sound-
proof box.
2.7 Risk due to high working temperatures
The ultrasonic bath, the sonication fluid and the goods to be treated can become
hot during operation. Touching them can lead to burns.
Ultrasound heats the sonication fluid even without additional heating. Very high
working temperatures can occur during lengthy ultrasonic operation.
• Note the treatment times recommended by the ultrasound agent manufac-
turer. Do not leave the ultrasound switched on for longer than necessary.
• Do not reach into the sonication fluid with your hand. Remove the goods to be
treated with the insert basket or with tongs.
• Allow the goods to be treated to cool down before you touch them.
Non-aqueous liquids can heat up much faster than water. A possible flashpoint
can be reached and exceeded after very short sonication. When using high-boiling
liquids, the bath temperature can rise above 120°C due to the energy supplied by
the ultrasound. This can lead to fires and to serious burns.
• Do not use any flammable, explosive, non-aqueous liquids (e.g. benzine or
solvents) or mixtures with flammable liquids (e.g. alcohol solutions) directly in
the stainless steel ultrasonic oscillating tank.
• Small quantities of flammable liquids can be sonicated indirectly in sample
containers. Before sonicating flammable liquids, familiarise yourself with nec-
essary safety measures and applicable regulations for handling these liquids.

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Safety/2
2.8 Danger from ultrasound
High ultrasonic levels like those reached in the ultrasonic bath destroy cell struc-
tures. If part of the body is immersed in the sonication fluid during operation, this
can cause damage to skin and also damage to internal tissue. The periosteum of
finger bones can be damaged.
• Do not reach into the sonication fluid during operation.
• Never sonicate living creatures.
2.9 Danger from agents used
Agents used in the ultrasonic bath can be toxic or caustic. They can irritate eyes,
skin and mucous membranes. The vapours and aerosols can also be dangerous.
• Wear gloves and protective goggles when handling dangerous agents.
• Do not ingest the agents and do not allow them to come into contact with
eyes or skin. Do not lean closely over the ultrasonic bath otherwise vapours
could come into contact with your eyes and you could breathe in vapours.
• Place a lid on the ultrasonic bath during operation. Use an extraction system if
there are dangerous vapours.
• Note the information on the label and on the safety data sheet for the agent.
• Keep the agents out of the reach of children and of persons who have not
been instructed.
2.10 Disposing of sonication fluid
Dispose of the sonication fluid according to the information provided by the man-
ufacturer of the ultrasound agents used. The recommended ultrasound agents
from the TICKOPUR, TICKOMED and STAMMOPUR product ranges from
DR. H. STAMM GmbH are biodegradable according to the articles of Regulation
(EC) no. 648/2004 (Detergents Regulation). If necessary, the sonication fluid
needs to be neutralised before disposal.
During cleaning, water-polluting substances, e.g. oils or heavy-metal compounds,
can contaminate the sonication fluid depending on the type of soiling. If the limit
value for these substances is exceeded, the sonication fluid must be reprocessed
or disposed of as special waste.
Observe the local waste water regulations.

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2.11 Erosion of the ultrasonic oscillating tank
The surface of the ultrasonic oscillating tank is subject to erosion. How quickly
this erosion takes place depends on the usage of the ultrasonic bath. The erosion
leads to leaks in the ultrasonic oscillating tank. Sonication fluid can thus leak into
the interior of the ultrasonic bath. Moisture on electrical components can lead to
an electric shock or to a fire.
• Do not use the ultrasonic bath any more if you notice a leak. Disconnect the
mains plug immediately. Empty the ultrasonic oscillating tank.
You can extend the service life of the ultrasonic oscillating tank by observing the
following information:
• Change the sonication fluid when it is noticeably contaminated with particles.
• Use only demineralised water with an agent suitable for ultrasound.
• Do not use any chemicals in the ultrasonic oscillating tank that contain or
release chloride ions. This is the case with some disinfection agents, house-
hold cleaning products and detergents. Chloride ions cause corrosion on
stainless steel.
• Use the ultrasonic bath exclusively with accessories that are suitable for the
ultrasonic bath and the goods to be treated, e.g. a basket. Do not place any
goods to be treated directly on the bottom of the ultrasonic oscillating tank.
You will find an overview of suitable accessories in chapter 10 Accessories.
2.12 Avoiding damage to the ultrasonic bath
• Use aggressive agents exclusively in inset beakers or insert tubs. When work-
ing with aggressive agents, do not allow them to splash into the sonication
fluid or onto the stainless steel surface. Replace contaminated sonication fluid
immediately Clean surfaces and rub them dry.
• Do not operate the ultrasonic bath without sonication fluid in the ultrasonic
oscillating tank. The filling level must be at or just over the filling level mark.

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Safety/2
2.13 Interference with wireless communication
The ultrasonic bath can cause interference in nearby wireless communication
devices, e.g.:
• Mobile phones
• WiFi devices
• Bluetooth devices
If interference with the functions of a wireless device occurs, increase its distance
from the ultrasonic bath.
The ultrasonic bath meets the requirements for Class B devices according to EN
55011.

3 / Design and function
12/36 6486-001 GB/2021-04
3 Design and function
3.1 Design
Fig. 1 Overview of ultrasonic bath
1 oscillating tank
2 Filling level mark
3 Control panel (depending on model; control panel ST 15.1 or control panel ST 30 DT)
4 Ultrasonic generator
5 Drain (optional; here Viega fitting)
3.2 Control panel for control unit ST 15.1
Fig. 2 Controls for ST 15.1
1 Green indicator lamp
When lit up: ultrasound switched on
2 Rotary knob for setting the sonication time

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Design and function/3
3.3 Control panel for control unit ST 30 DT
Fig. 3 Controls for ST 30 DT
1 On/off button for switching the ultrasonic bath on and off
2Temperaturescale
3 Button for setting the sonication time with time scale
4 Start/stop button for ultrasound
3.4 Function
The ultrasonic bath uses cavitation triggered by low-frequency ultrasound. Piezo-
electric oscillating systems are located on the underside of the ultrasonic oscillat-
ing tank. The ultrasound generates large pressure fluctuations in the sonication
fluid. Cavitation bubbles are formed at the pressure minima. At higher ambient
pressures around the bubbles, the bubbles collapse very quickly. Strong, localised
microstreaming then occurs on the surfaces of the treated objects. As a result
soiling is removed from the surface of the objects. Particles of dirt are lifted off
and fresh sonication fluid follows.
SONOREX ultrasonic baths use SweepTec®, a technology in which the ultrasonic
frequency varies frequently around the working frequency. The optimum working
frequency depends on the load, filling level, temperature and type of sonication
fluid. The working frequency can differ greatly from the nominal frequency.
SweepTec® creates a particularly homogenous ultrasonic field within the operat-
ing volume for continuously optimum results.

4 / Set-up/assembly
14/36 6486-001 GB/2021-04
4 Set-up/assembly
The ultrasonic bath was assembled by authorised specialist staff using the
assembly instructions.

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Operation/5
5Operation
5.1 Direct and indirect sonication
Objects can be sonicated directly or indirectly in the ultrasonic bath.
Direct sonication is the standard process. The objects to be sonicated are placed
in the ultrasonic oscillating tank using suitable accessories, e.g. a basket. There,
they are in direct contact with the sonication fluid in the tank.
Indirect sonication is used in the following cases:
• Sonication of sample fluids
• Use of chemically aggressive or flammable liquids
• Use of demineralised water without additives
• Removal of chemically aggressive soiling
• Removal of stains, discolouration and signs of rust with acidic agents.
The objects or liquids to be sonicated are placed in the sonication fluid in the
ultrasonic oscillating tank using an inset beaker to transfer the ultrasound. The
sonication fluid in the ultrasonic oscillating tank must contain an agent containing
surfactant.
For accessories suitable for direct and indirect sonication, see chapter
10 Accessories
5.2 Sonication fluid
A solution made from water and a special ultrasound agent is used as the sonica-
tion fluid. Drinking water or demineralised water can be used for the water.
Water without any additives is unsuitable for sonication. Use of demineralised
water without an ultrasound agent leads to increased erosion of the ultrasonic
oscillating tank.
The ultrasound agent used must foster cavitation and be biodegradable, easy to
dispose of, material-compatible and long-lasting. BANDELIN recommends ultra-
sound agents from the TICKOPUR, TICKOMED and STAMMOPUR product ranges
from DR. H. STAMM GmbH.
• Telephone advice: [phone]
• Internet: www.dr-stamm.de
Observe the information on dosing provided by the ultrasound agent manufac-
turer. Please refer to the dosing table for the required quantities of ultrasound
agent and water. See chapter 9 Dosing table.
You can calculate the quantities yourself in the same way as the following exam-
ple:
10 l ready to use solution, 2.5%:

5 / Operation
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5.3 Sonication time
NOTICE
Risk of damage to the goods to be treated
Excessively long sonication can damage the surface of the goods to be treated.
– Select a short sonication time where possible.
The ideal sonication time depends on several factors:
• Type and concentration of agent
• Working temperature of sonication fluid
• Type of soiling
• Type of goods to be treated, in particular materials
Note the information on the recommended sonication time from the agent man-
ufacturer. To begin with, select as short a sonication time as possible to protect
the objects to be sonicated and the ultrasonic oscillating tank. Check the result.
Lengthen the sonication time if the result is not sufficient.
5.4 Pour in sonication fluid
CAUTION
Risk of scalding
– Do not pour hot water into the ultrasonic oscillating tank.
– Maximum filling temperature: 50°C.
NOTICE
Damage due to condensation in the ultrasonic bath
At high humidity, condensation forms inside the device if you fill it with cold
water.
– Do not pour cold water into the ultrasonic oscillating tank when humidity is
high.
10 l x 2,5 %
= 0,25 l agent
100 %
10 l - 0,25 l = 9,75 l water

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Operation/5
NOTICE
If you use an agent in powder form, do not pour it directly into the ultrasonic
oscillating tank.
– Mix agents in powder form in another container before you pour them into the
ultrasonic oscillating tank.
– Only pour the agent into the ultrasonic oscillating tank once it has dissolved
completely.
Fig. 4 Overview of ultrasonic bath
1 oscillating tank
2 Filling level mark
3 Operation (depending on model; control panel ST 15.1 or control panel ST 30 DT)
4 Ultrasonic generator
5 Drain (optional; here Viega fitting)
Requirements
• On ultrasonic baths with a drain, the drain must be closed.
• The ultrasound must be switched off.
Procedure for direct sonication
1. Fill the ultrasonic oscillating tank with water up to 1⁄3.
2. Pour the correct quantity of agent for the sonication fluid into the oscillating
tank. See chapter 9 Dosing table.
3. Fill the tank with water up to the filling level mark while avoiding foam forma-
tion.
Procedure for indirect sonication
1. Fill the ultrasonic oscillating tank with water up to 1⁄4.
2. Pour the correct quantity of agent for the sonication fluid into the oscillating
tank. See also information for insert tub.
3. Fill with water, see also information for insert tub. Take the displacement
caused by the insert tub into consideration. Also avoid the formation of foam.

5 / Operation
18/36 6486-001 GB/2021-04
4. The insert tub must be filled with sonication fluid until it no longer floats. Fur-
thermore, the insert tub needs to be filled at least until the goods to be
treated are covered with sonication fluid.
Result
» The ultrasonic bath is ready to switch on.
5.5 Switching sonication on and off – ST 15.1
Requirements
• The ultrasonic oscillating tank has been filled.
• The mains plug has been connected to an earthed mains socket.
Procedure
1. If available, place the lid on the ultrasonic bath.
2. Turn the rotary knob for the sonication time to the required sonication time or
to the ∞symbol for continuous operation.
» The ultrasound is switched on. You will hear the ultrasound noise.
» The green indicator lamp lights up.
» If the rotary knob is not set to ∞, it will move slowly anticlockwise and dis-
play the remaining sonication time. The ultrasound is switched off as soon
as it reaches “0”.
3. To switch off the sonication, turn the rotary knob for the sonication time to
“0”.
» The green indicator lamp goes off.
Information
– You can turn the rotary knob in both directions.
– You can extend, shorten or switch off the sonication at any time.
– The time switch only works when the mains voltage is connected. Without
mains voltage, the detent of the rotary knob is hard to feel.
5.6 Switching sonication on and off – ST 30 DT
Requirements
• The ultrasonic oscillating tank has been filled.
• The mains plug has been connected to an earthed mains socket.
Procedure
1. If available, place the lid on the ultrasonic bath.
2. Press the on/off button to switch on the ultrasonic bath.
3. Press the button for setting the sonication time repeatedly until the required
sonication time or the ∞symbol for continuous operation is displayed.
4. Press the start/stop button.
» The ultrasound is switched on. You will hear the ultrasound noise.
» The LEDs indicate the remaining sonication time in seconds.
5. To switch off the sonication, press the start/stop button.

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Operation/5
Information
– The ultrasound switches off automatically as soon as only the “0” LED is lit
up. In continuous operation, the green LED next to the ∞symbol lights up con-
tinuously. The ultrasound does not switch off automatically.
– You can extend, shorten or switch off the sonication at any time.
– If you do not press a button for more than 12 hours, the ultrasonic bath will
be switched off automatically.
– The working temperature cannot be set. The current working temperature is
indicated by a flashing yellow LED, however.
– The red "!" LED will flash if the working temperature exceeds 40°C.
5.7 Degassing sonication fluid
Sonication fluid that has been freshly filled or left in the ultrasonic oscillating tank
must be degassed before use. Degassing the sonication fluid increases the effect
of the ultrasound.
• Cover the ultrasonic oscillating tank with the lid if available.
• Switch the ultrasound on for degassing. The degassing time is:
– Volume of sonication fluid up to 10 litres:
10 minutes
– Volume of sonication fluid over 10 litres:
30 minutes
Information
The ultrasound noise becomes quieter during degassing. This means that the
ultrasonic effect is increasing.
5.8 Adding goods to be treated
To achieve good results, observe the following information when inserting goods
to be treated:
• Each time before sonication, check whether the sonication fluid is contami-
nated. If there is visible contamination, replace the sonication fluid.
• The sonication fluid must be degassed. See chapter 5.7 Degassing sonication
fluid.
• The sonication fluid must be preheated to the required working temperature
before you add objects.
• Use suitable accessories, e.g. a basket. Do not place any objects directly on
the bottom of the ultrasonic oscillating tank. Use a studded silicone mat for
sensitive objects. See chapter 10 Accessories.
• Insert objects so they are distributed. Do not stack them. Sensitive objects
may not touch other objects.
• The ultrasound must be switched off while objects are being inserted.

5 / Operation
20/36 6486-001 GB/2021-04
• Check the filling level. The goods to be treated must be completely submerged
in the fluid. Inset beakers for indirect sonication need to be submerged at
least 2 cm in the sonication fluid.
• Remove air bubbles from cavities. Rotate the objects accordingly. Remove air
bubbles under inset beakers. The ultrasound only works where the fluid is in
contact with the goods to be treated or the inset beaker.
• Position the side with greater soiling so it is facing downwards. Insert objects
with joints (e.g. scissors or tongs) in open condition so that the whole surface
is optimally reached by the sonication fluid.
5.9 Removing goods to be treated
WARNING
Risk of burns
The sonication fluid, goods to be treated, the surface of the ultrasonic bath as
well as accessories can be very hot.
– Do not touch the surface of the ultrasonic bath or accessories like the lid. Do
not reach into the sonication fluid.
– Allow the goods to be treated to cool down before you touch them.
Switch the ultrasound off before you remove the goods to be treated.
Do not remove the goods to be treated with your hands. For example, carefully
lift out the insert basket with the goods to be treated and place it on a flat sur-
face.
Rinse goods to be treated with clear water.
Do not leave the goods to be treated in the sonication fluid for too long. This can
damage the goods.
5.10 Emptying the ultrasonic oscillating tank
Soiling on the bottom of the ultrasonic oscillating tank reduces the ultrasonic
nominal power. If there is visible contamination in the sonication fluid, drain and
clean the ultrasonic oscillating tank.
Also note the agent manufacturer's information on the life of the sonication fluid.
Replace used sonication fluid completely. Do not freshen it up by adding fluid.
Procedure
1. Switch off the ultrasound.
2. Open the drain.
3. Rinse the ultrasonic oscillating tank thoroughly.
4. Wipe the ultrasonic bath dry with a soft cloth.
5. If necessary, disinfect the ultrasonic bath with a suitable surface disinfectant.