BANDELIN DT 31 User manual

1686-000 GB/2021-03
Operating Manual
3D
3D-RC
High-performance ultrasonic baths
Applies to:
DT 31, DT 31 H, DT 52, DT 52 H
DT 100, DT 100 H, DT 102 H, DT 102 H-RC, DT 103 H, DT 106
DT 156, DT 156 BH
DT 255, DT 255 H, DT 255 H-RC
DT 510, DT 510 H, DT 510 H-RC, DT 512 H
DT 514, DT 514 H, DT 514 BH, DT 514 BH-RC
DT 1028, DT 1028 H, DT 1028 CH
DT 1050 CH
Dokument: 1686-000Sprache: GBVersion:2021-03

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© 2021
1 2 GmbH & Co. KG, Heinrichstr. 3–4, 12207 Berlin, Germany
Tel.: [phone], Fax: [phone], [email protected]om
Certified according to ISO 9001 and ISO 13485

1686-000 GB/2021-03 3/52
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Avoiding cross-contamination and infections . . . . . . . . . . . . . . . . 8
2.4 Keep away from children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Risk of electric shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 Damage to health due to ultrasonic noise . . . . . . . . . . . . . . . . . . . 9
2.7 Risk due to high working temperatures . . . . . . . . . . . . . . . . . . . . . 10
2.8 Danger from ultrasound. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.9 Danger from agents used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10 Disposing of sonication fluid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11 Erosion of the ultrasonic oscillating tank . . . . . . . . . . . . . . . . . . . . 12
2.12 Avoiding damage to the ultrasonic bath . . . . . . . . . . . . . . . . . . . . . 13
2.13 Interference with wireless communication . . . . . . . . . . . . . . . . . . 13
2.14 Safety stickers on the ultrasonic bath . . . . . . . . . . . . . . . . . . . . . . . 14
3 Design and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4 Remote control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Preparation for operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.1 Requirements for setup location. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2 Fitting ball valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3 Performing a function test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.4 Rinsing out the ultrasonic oscillating tank . . . . . . . . . . . . . . . . . . . 19

Table of contents
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5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Direct and indirect sonication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Sonication time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4 Pour in sonication fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.5 Switching sonication on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.6 Switching the heating on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.7 Avoiding retardation of boiling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.8 Degassing the sonication fluid – DEGAS . . . . . . . . . . . . . . . . . . . . . 27
5.9 Adding goods to be treated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.10 Removing goods to be treated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.11 Emptying the ultrasonic oscillating tank . . . . . . . . . . . . . . . . . . . . . 29
5.12 Enabling and blocking continuous operation . . . . . . . . . . . . . . . . . 30
5.13 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1 Cleaning and care of the ultrasonic bath . . . . . . . . . . . . . . . . . . . . . 32
6.2 Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3 Performing the foil test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.4 Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9 Dosing table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
10 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

1686-000 GB/2021-03 5/52
About this operating manual/1
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 man-
ual.
• 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 service department in chapter
6.4 Repair.
Illustrations are examples and not to scale.

2/Safety
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2 Safety
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 ultra-
sonic 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 thor-
ough cleaning.

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Safety/2
2.2 Use in medical field
The intended medical purpose of the ultrasonic bath is the cleaning
of instruments. 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 reprocess-
ing. The instrument manufacturer's specifications provide informa-
tion 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, ven-
tilator system parts and flexible endoscopes) are unsuitable or
only conditionally suitable for sonication. The respective manu-
facturer's specifications provide information on suitability for
ultrasonic cleaning.
• The ultrasonic bath is not suitable for the cleaning and disinfec-
tion of contact lenses.
• The direct sonication of inflammable liquids is not permitted.
Possible side effects/restrictions
• Ultrasound does not disinfect. However, processes, e.g. chemi-
cal disinfection, can be accelerated in the ultrasonic bath.
• Surfaces can be mechanically attacked and coatings dissolved
due to cavitation erosion.

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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 disin-
fect 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-contamination. 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 protec-
tive 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.

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Safety/2
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 transport the ultrasonic bath when empty.
• Only drain the ultrasonic bath once it has been switched off. Dis-
connect an ultrasonic bath that does not have a drain from the
mains before you empty it.
• Do not put the ultrasonic bath in the sink. Do not hose the ultra-
sonic bath down, do not immerse it in water and do not expose
it to spray water.
• Disconnect the ultrasonic bath from the mains whenever you
clean or maintain it.
• Connect the ultrasonic bath only to mains sockets with earthing
contacts.
• 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 soundproof box.

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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.
The working temperature can be set to up to 80°C.
Ultrasound heats the sonication fluid even without additional heat-
ing. Very high working temperatures can occur during lengthy ultra-
sonic operation. In ultrasonic baths with heating, the ultrasonic
energy can cause the set working temperature to be exceeded con-
siderably.
• Note the treatment times recommended by the ultrasound
agent manufacturer. 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.
• When you lift the basket out by the handles, your hands could
touch the edge of the ultrasonic oscillating tank, which can be
very hot. Allow the ultrasonic bath to cool after use before you
lift it for emptying.
Non-aqueous liquids can heat up much faster than water. A possi-
ble flashpoint can be reached and exceeded after very short sonica-
tion. 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 oscil-
lating tank.
• Small quantities of flammable liquids can be sonicated indirectly
in sample containers. Before sonicating flammable liquids,
familiarise yourself with necessary safety measures and appli-
cable 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 structures. If part of the body is immersed in the soni-
cation 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 aero-
sols 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 pro-
vided by the manufacturer of the ultrasound agents used. The rec-
ommended ultrasound agents from the TICKOPUR, TICKOMED and
STAMMOPUR product ranges from DR. H. STAMM GmbH are bio-
degradable according to the articles of Regulation (EC) no. 648/
2004 (Detergents Regulation). If necessary, the sonication fluid
needs to be neutralised before disposal.

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12/52 1686-000 GB/2021-03
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.
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 oscillat-
ing tank. Sonication fluid can thus leak into the interior of the ultra-
sonic 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. Dis-
connect the mains plug immediately. Empty the ultrasonic oscil-
lating 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 ultra-
sound.
• Do not use any chemicals in the ultrasonic oscillating tank that
contain or release chloride ions. This is the case with some dis-
infection agents, household 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 over-
view of suitable accessories in chapter 10 Accessories.

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Safety/2
2.12 Avoiding damage to the ultrasonic bath
• Use aggressive agents exclusively in inset beakers or insert tubs.
When working with aggressive agents, do not allow them to
splash into the sonication fluid or onto the stainless steel sur-
face. Replace contaminated sonication fluid immediately Clean
surfaces and rub them dry.
• The ball in the ball valve can be attacked if highly acidic agents
are used. The ball valve will leak. If use of a highly acidic cleaning
agent is essential, use a stainless steel ball valve.
• Do not operate the ultrasonic bath without sonication fluid in
the ultrasonic oscillating tank. In particular, make sure that the
heating is switched off when the ultrasonic oscillating tank is
empty. The filling level must be at or just over the filling level
mark.
2.13 Interference with wireless communication
The ultrasonic bath can cause interference in nearby wireless com-
munication devices, e.g.:
• Mobile phones
• WiFi devices
•Bluetoothdevices
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.

2/Safety
14/52 1686-000 GB/2021-03
2.14 Safety stickers on the ultrasonic bath
• Observe all safety stickers on the ultrasonic bath.
• Keep the safety stickers in legible condition. Do not remove
them. Replace them once they are no longer legible. Contact our
customer service about this. See chapter 6.4 Repair.

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Design and function/3
3 Design and function
3.1 Design
Fig. 1 Overview of ultrasonic bath
1 Handles (depending on model)
2 Ultrasonic oscillating tank
3 Control panel
4 Filling level mark
5 Drain with ball valve (depending on model)
6Housing
7 Device feet
21 143
567

3/Design and function
16/52 1686-000 GB/2021-03
3.2 Control panel
Fig. 2 Controls for ultrasonic baths with heating
Fig. 3 Controls for ultrasonic baths without heating
1 On/off button for switching the ultrasonic bath on and off
2 Button for setting the heating temperature with temperature scale
3 Button for setting the sonication time with time scale
4 Start/stop button for ultrasound
3.3 Function
The ultrasonic bath uses cavitation triggered by low-frequency
ultrasound. Piezoelectric oscillating systems are located on the
underside of the ultrasonic oscillating tank. The ultrasound gener-
ates 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.
21 3 4
31 4

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Design and function/3
SONOREX ultrasonic baths use SweepTec®, a technology in which
the ultrasonic frequency varies frequently around the working fre-
quency. The optimum working frequency depends on the load, fill-
ing 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 operating volume for continuously optimum results.
3.4 Remote control
The ultrasonic baths with the additional designation "RC" are
equipped with an infrared interface for remote control from a PC.
For communication, you require the WINSONIC-DT remote control,
which consists of the infrared adapter IR 1 and software (order
no. 3090).
Various additional functions allow easy operation using a PC to
control processes and for quality control. The WINSONIC DT soft-
ware required for this is not part of the standard scope of delivery
of the ultrasonic baths. You can install the software on operating
systems from Windows 2000. For further information, refer to the
user manual for the WINSONIC DT software.
The command set for the infrared interface will be provided free of
charge by the manufacturer on request. The user is responsible for
the program-related implementation required for communication.
This is not supported by the manufacturer. The manufacturer only
guarantees the correct functioning of the infrared interface.

4/Preparation for operation
18/52 1686-000 GB/2021-03
4 Preparation for operation
4.1 Requirements for setup location
The setup location for the ultrasonic bath must meet the following
conditions:
• The setup surface must be horizontal, solid and dry.
• The load-bearing capacity must be sufficient for the ultrasonic
bath with the sonication fluid. For weight and operating volume,
see chapter 8 Technical data.
• Sufficient ventilation must be guaranteed. The supply of air
under the bottom of the ultrasonic bath may not be hindered by
objects. If a soundproof box is used, it must also guarantee suf-
ficient ventilation.
• A water connection for filling the ultrasonic bath should be
located nearby. A basin must be available for draining or pouring
out the sonication fluid.
4.2 Fitting ball valve
Concerns ultrasonic baths from DT 102 H / DT 102 H-RC.
Fit the supplied ball valve, the hose grommet and the hose as
described in the assembly instructions included with the ball valve.

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Preparation for operation/4
4.3 Performing a function test
Requirement
• The ultrasonic bath has adapted to the climatic conditions at the
setup location for at least 2 hours.
Procedure
1. Insert the mains plug for the ultrasonic bath into an earthed
mains socket.
2. Press the on/off button to switch the ultrasonic bath on.
3. Switch the ultrasound on briefly. Do this by pressing the start/
stop button. After 1 to 2 seconds, press the start/stop button
again to switch off the ultrasound.
Result
» A noticeable noise can be heard when the ultrasound is switched
on.
Contact our service department if you cannot hear any noise.
A foil test should be performed before the first use. This is used to
document the effectiveness of the ultrasound. See chapter
6.3 Performing the foil test.
4.4 Rinsing out the ultrasonic oscillating tank
Rinse the ultrasonic oscillating tank thoroughly with water before
using it for the first time.

5/Operation
20/52 1686-000 GB/2021-03
5 Operation
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 soni-
cated 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
•Removalofstains,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 oscil-
lating tank must contain an agent containing surfactant.
For accessories suitable for direct and indirect sonication, see chap-
ter 10 Accessories