BANDELIN Sonorex Digitec DT 510 F User manual

3 D Series F
Ultrasonic baths for preparation of samples
User instructions
Valid for:
DT 510 F and DT 1028 F
51326c GB/2017-06

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Copyright & limitation of liability
This document may not be reproduced, either in full or in extracts, without prior approval of BANDELIN electronic GmbH & Co. KG,
hereinafter referred to as BANDELIN.
The German original is the binding version of this document. Any difference in the translation is not binding and has no legal effect.
In case of any discrepancies between the translation and the original of this document, the original version has priority.
BANDELIN accepts no responsibility or liability for damages caused by improper handling or usage contrary to the intended
purpose.
The documentation was prepared with great care. Liability for indirect or direct damages arising because of incomplete or
erroneous information in this documentation, as well as in its delivery and usage, is excluded.
© 2017
1 2 GmbH & Co. KG, Heinrichstrasse 3–4, Germany, 12207 Berlin,
Tel.: [phone] - 0, Fax: [phone], [email protected]

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General
The equipment, the accessories and the preparations are to be used in accordance with the user
instructions and/or the product information.
The instructions are part of the scope of delivery and are to be stored in the vicinity of the device
for later reference. This also applies if possession of the device is transferred.
Before the device is put into operation, these User Instructions are to be read carefully and
completely in order for the user to become familiarised with all functions.
The warnings and safety precautions (Section 1.5) are always to be followed during use.
The manufacturer will not assume any responsibility for the device's safety or functional ability
in the event of improper handling or usage contrary to the intended purpose. In the event of
unauthorised alterations/modifications, both the warranty claim and the !conformity will expire.
If any service is required, please contact the specialist dealer in charge or the manufacturer.
Symbols used:
Symbol Significance Explanation
Danger Identifies information that could signify a risk to life and limb,
especially through electric shock, if not observed.
Caution
Identifies information that is to be observed and adhered to
without fail, to prevent damage to the device and danger to
the user.
When device parts are labelled with this symbol, reference
must be made to the documentation.
Warning Warns of a hot surface.
Important Identifies information that is important for execution.
Note Identifies information provided for explanatory purposes.
Medical note Identifies information that is important for medical use.
In vitro diagnostics
information
Identifies information that is important for in vitro diagnostics
applications.
Do not grip inside For health reasons, touching the oscillating fluid is prohibited.
Wear ear protectors For health reasons, standing for long periods of time in the
vicinity of the device without ear protectors is prohibited.
Operating sequence
instructions
Identifies instructions that are to be followed in the described
sequence.

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Contents
1 Product description .........................................................................................................6
1.1 Mode of operation ..........................................................................................................6
1.2 Purpose ..........................................................................................................................7
1.3 CE conformity .................................................................................................................7
1.4 Technical data ................................................................................................................8
1.4.1 Electromagnetic ambient conditions (EMC) ...................................................................9
1.5 Warnings and safety precautions ................................................................................. 10
2 Preparation ................................................................................................................... 11
2.1 Scope of delivery .......................................................................................................... 11
2.2 Set-up / assembly ......................................................................................................... 11
2.3 Start-up ......................................................................................................................... 11
3 Operation ......................................................................................................................12
3.1 Operating elements ......................................................................................................12
3.1.1 Ultrasound ....................................................................................................................12
3.2 Ultrasound signals - not applicable - .............................................................................13
3.3 Special functions ..........................................................................................................13
4 Use ...............................................................................................................................13
4.1 Fill oscillating tank ........................................................................................................14
4.2 Degassing the fluid .......................................................................................................15
4.3 Ultrasound operation ....................................................................................................16
4.4 Empty the oscillating tank............................................................................................... 17
4.5 Further information .......................................................................................................17
4.5.1 Degassing ....................................................................................................................17
4.5.2 Disposal of sonication fluids .........................................................................................17
5 Cleaning and maintenance of the ultrasonic bath ........................................................18
5.1 Cleaning and care ........................................................................................................18
5.2 Disinfection for medical applications ............................................................................18

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5.3 Warehousing / storing ................................................................................................... 18
6 Maintenance and repair ................................................................................................19
6.1 Maintenance .................................................................................................................19
6.2 Functional checks .........................................................................................................19
6.3 Error analysis ...............................................................................................................19
6.4 Repairs and service ......................................................................................................20
6.4.1 Decontamination certificate ..........................................................................................20
6.4.2 Exchanging fuses .........................................................................................................20
7 Accessories ..................................................................................................................21
7.1 Required accessories ...................................................................................................21
7.2 Optional accessories - not applicable - ......................................................................... 21
7.3 Preparations .................................................................................................................21
8 Consumable materials - not applicable - .....................................................................22
9 Taking the unit out of service ........................................................................................22
10 Key words .....................................................................................................................22
Informative appendices
A Accessories
B Foil test
C Decontamination - sample copy

SONOREX DIGITEC DT 510 F
13
4
6
7
2
5
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1 Product description
Ultrasonic bath of type SONOREX DIGITEC DT ... F user instructions.
The exact type specification and serial number are found on the type plate, on the rear side of the
ultrasonic bath.
Product features:
• Stainless steel oscillating tank (1) with high-grade PZT high-performance ultrasonic systems,
ultrasound frequency 35 kHz
• Digital timer for 1, 2, 3, 4, 5, 10, 15, 30 min and continuous operation (2)
• Filling level mark for safe filling (3)
• Compact, easy to clean stainless steel housing (4)
• Rubber feet for safe positioning (5)
• Outlet with ball valve (6) for easy draining of the bath fluid and handles (7)
1.1 Mode of operation
SONOREX ultrasonic baths use the effect of cavitation. Under their oscillating tank bottoms
they contain piezoelectric transducers, the energy of which is transferred to the bath fluid with
ultrasound frequency as mechanical oscillations. As a result, microscopically small bubbles
are continuously formed in the bath fluid, which release energy upon imploding and generate
local micro currents. This process is called cavitation. During the cleaning processes, it causes
contamination to be regularly "blasted" from the hard surfaces of the objects being treated. At
the same time, dirt particles are dispersed and fresh bath fluid flows in. During sonochemical
processes, cavitation may have a catalytic effect, e.g., with the production of stable emulsions or
the rapid degasification of fluids with a high gas content.
SONOREX ultrasonic baths are efficiently supported by SweepTec®automatic frequency control.
SweepTec®immediately balances load-dependent working point fluctuations to the optimal
working point using fast frequency modulation. This produces an especially homogeneous and
uniform ultrasound field in the bath volume for constantly reproducible results.

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1.2 Purpose
General application
The SONOREX ultrasonic baths with their flat baths were developed for the preparation of
samples in laboratories, clinics and academic research.
With corresponding accessories, it is possible to sonicate samples in laboratory flasks of different
shapes and sizes. The samples can be sonicated both for a defined time and also in continuous
operation. It is not permissible to prepare objects to be cleaned in the ultrasonic baths.
Application examples:
- Preparation of samples
- Even, indirect sonication of the samples
- Homogenisation
- Rapid degasification of samples
e.g., in medical diagnostics, environmental and foodstuff analysis and ultrasonic chemistry.
Sonication is always carried out in connection with a suitable preparation that is added to the bath
fluid.
For correct use, the supplied beaker holder or another holder is required for storing the inset
beakers with the samples during the sonication. Nothing must stand or lie directly on the bottom of
the bath – this is the only way to ensure optimal diffusion of the ultrasound.
The ultrasonic bath is operated from the front. The operation is usually carried out on a table.
In vitro diagnostic laboratory procedures (preparation of samples)
The SONOREX ultrasonic baths can be used for in vitro diagnostic preparation or laboratory
procedures (e.g., preparation of samples) in which medical information is gathered from the
ultrasonic treatment of organic or inorganic material.
In this case, they are classified and treated in accordance with the Directive 98/79/EC on in vitro
diagnostic medical devices.
1.3 CE conformity
SONOREX ultrasonic baths are declared as IVD products and satisfy the CE marking criteria for
the European Directives:
- "IVD" directive
- "Low-voltage directive"
- "Electromagnetic compatibility" directive
in their currently valid versions.
A declaration of conformity can be requested from the manufacturer by providing the serial
number.

Protected against access by
instruments to dangerous
components,
protected against solid
foreign bodies with a
diameter of 2.5 mm or larger
Protected from splashes
up to 60° from its vertical
axis
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1.4 Technical data
SONOREX ultrasonic baths are interference-free and !.
Safety: EN 61010-1,
EMC: EN 61326-1
Mains supply: 230 V~ (± 10 %) 50/60 Hz, (115 V upon request), mains cable length 2 m
Protection class: Class I
Frequency 35 kHz
Oscillating tank: Stainless steel
Serial number (SN): See type plate on the rear side of the ultrasonic bath
Degree of protection: IP 33 according to DIN 60529
Ambient conditions according to EN 61 010-1
Overvoltage category: II
Degree of contamination: 2
Permissible ambient temperature: 5 to 40 °C
Permissible relative humidity up to 31°C: 80%
Permissible relative humidity up to 40°C: 50%
No dewing.
Only for indoor operation.
Specifications for use as a medical device
Name: Ultrasonic bath SONOREX DIGITEC ... F
UMDNS nomenclature (ECRI / DIMDI): 14-263
Purpose: See Section 1.2.
Classification (in acc. with
Directive 98/79/EC for IVD): Device category 5 device
Type, model, serial number, year of manufacture: See type plate on the rear side of the device
The ultrasonic bath has been inspected pursuant to the currently applicable standards and is to be
installed and put into operation pursuant to EMC directions, see Section 1.4.1.
Specifications pursuant to the Medical Devices Operator Ordinance (MPBetreibV):
Startup at location, functional check
and personnel training (§ 5): Not required
Technical safety controls, (STK, § 6): No specifications
Technical measurement controls, (MTK, § 11): Not applicable

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Bath type Order no. Interior dimensions
(L × W × D)
Operating
volume
Outlet
(valve)
Ultrasonic peak
power* / Ultrasonic
nominal output
Weight
(net)
Current
consump-
tion
Fuses for
generator
mm l W / Weff kg A
DT 510 F 3242 300 × 240 × 65 2.5 G ½ 560 / 140 5.5 0,7 F2A
DT 1028 F 3243 500 × 300 × 65 5.8 G ½ 1280 / 320 10 1.4 F2A
/* In order to improve the effect the ultrasound is being modulated whereby, depending upon the ultrasonic bath, a 4- or 8-fold
Ultrasonic nominal output value is yielded as ultrasonic peak power, in connection with SweepTec.
1.4.1 Electromagnetic ambient conditions (EMC)
The device was tested to DIN EN 61326-1 for electromagnetic compatibility (EMC) and complies
with the requirements for class B devices according to EN 55011.
It is suitable for use in facilities and areas which are directly connected to a public low-voltage
supply network, e.g. medical laboratory facilities.

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1.5 Warnings and safety precautions
General
• Keep the ultrasonic bath out of the reach of children and also of persons who have not been
instructed in their operation by reference to these instructions.
• We will not offer a guarantee for damages to the ultrasonic bath or oscillating tank, or to the
objects to be treated, as a result of use of inadequate disinfection agents or detergents.
• Keep the surface of the ultrasonic bath and operating elements clean and dry.
• Do not expose the ultrasonic bath to corroding influences.
• Move the ultrasonic bath only when it is empty.
• Empty the ultrasonic bath only while turned off.
• Ultrasonic baths adhere to prescribed EMC limit values, such that it can be assumed that the
electromagnetic radiation emanating from the units is harmless to humans. However, a binding
statement for wearers of implants can only be made at the place of work and together with the
implant manufacturer. In case of doubt, information regarding the allowable electromagnetic
exposure level is to be obtained from the implant manufacturer.
Operation
• Observe ambient and set-up conditions, see Section 1.4.
• Only plug in the ultrasonic bath to an outlet with a grounded socket.
• Do not operate the ultrasonic bath without fluids.
• Do not stand or lay any objects on the tank bottom, accessories must be used, see Section 7.
• Do not immerse any parts of the body (e.g., hands, feet) or living beings (animals or plants)
into the tank; in particular, do not immerse them in the bath fluid during ultrasound operation.
Danger: Ultrasound has a cell-destroying effect.
• In the event of continuous activity within a 2 m radius, adequate hearing protection must be
used. Danger: Hearing disturbances during operation when not wearing hearing protection – the
typical ultrasound cavitation noise can be very uncomfortable.
• Do not operate the ultrasonic bath while unattended.
Advice for the medical and laboratory field
• The ultrasonic bath is exclusively intended for use by medical skilled personnel.
• It may generate radio interferences or disrupt the operation of devices nearby. It may be
necessary to take remedial measures such as realigning the device or a reconfiguration of the
ultrasonic bath or the shield.
• During operation, portable or mobile HF communication systems in the vicinity of the ultrasonic
bath should be turned off – their operation may be disrupted.
Damages
• If damage to the ultrasonic bath is detected, do not connect the ultrasonic bath to the mains.
• In the event of defects, disconnect the mains plug immediately.
• Repairs are only to be conducted by authorised skilled personnel or by the manufacturer.
• Defective parts may only be replaced with original parts.

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2 Preparation
Carefully unpack the ultrasonic bath and accessories and inspect them for completeness
or possible transportation damages. If any damages or defects are found, these are to be
immediately notified in writing to the transportation company and to the supplier.
Before start-up, the ultrasonic bath is to be left to stand at its operating location for 2 hours so that
it may adapt to the ambient conditions.
2.1 Scope of delivery
1 Ultrasonic bath – see delivery note
1 Ball valve with hose, packaged separately with sealing tape and assembly instructions
1 Beaker holder (for DT 510 F) /
2 Beaker holder (for DT 1028 F)
1 TICKOPUR TR 3 (250 ml)
1 User instructions
Additional accessories according to order – see delivery note
2.2 Set-up / assembly
• Place the ultrasonic bath atop a firm, level and dry surface. In doing so
- observe the maximum weight of the ultrasonic bath, including fluid.
Net weight see Technical Data Section 1.4.
- Do not block the air supply below the ultrasonic bath.
- Guard against moisture and wetness – risk of electric shock.
• Install the ball valve, hose socket and hose, which are included in the delivery, pursuant to the
enclosed assembly instructions.
2.3 Start-up
Thoroughly rinse the ultrasonic bath's oscillating tank with water before its first use.
Connect the ultrasonic bath up to the power supply (grounded socket).
Conduct function test. To do so, switch on the ultrasonic bath, start the ultrasound briefly and
then stop it again (maximum 1 to 2 seconds). A hissing noise should be heard. Then switch
device off again.
It is recommended that a foil test be conducted as part of quality assurance prior to the first
use, see appendix for information.
Place accessories in the ultrasonic bath as necessary.

1 Ultrasonic bath ON/OFF button
2 Preset time button
3 Start/Stop button – Ultrasound
4 LEDs for time
4
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3 Operation
3.1 Operating elements
The unit is operated at the front:
3.1.1 Ultrasound
With the ultrasonic bath turned on – ON/OFF button – after the time is
preset, theultrasound output is turned on with the Start/Stop button.
Timed operation:
• Setting via pressing buttons
Time 1, 2, 3, 4, 5, 10, 15 or 30 minutes; the corresponding, yellow LED lights
up on the time scale
- Following pressing of the Start/Stop button, a running light displays the
remaining time optically.
- Once the time expires, the ultrasonic output is stopped automatically.
• Premature pressing of the Start/Stop button ends the ultrasound output.
Continuous operation:
• Setting via pressing buttons
LED lights up
- Following pressing of the Start/Stop button, the top (green) LED lights up
constantly.
- Ultrasonic bath does not turn off automatically:
press the Start/Stop button to switch it off.
Caution:
For safety reasons, the ultrasound bath is turned off automatically if no button is pressed for more
than 12 hours.
Note
• While turned off, the ultrasonic bath may remain connected to the mains.
It can be disconnected from the mains by pulling out the mains plug.

Contact fluid Sonication fluid
Inset beaker
Contact fluid
Laboratory flasks
with sonication
solution
Beaker
holder
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3.2 Ultrasound signals - not applicable -
3.3 Special functions
Degas ( – in the time scale area)
• The DEGAS function is switched on for degassing the system before sonication. To do so,
set the required time with the preset time button, then hold the Start/Stop button for at least
2 seconds.
The system can be stopped prematurely by pressing the Start/Stop button.
During the degassing, the top green LED ( ) also flashes until the time expires.
• Switching between ultrasound – degas: If the Start/Stop button is kept depressed for a long
time when ultrasound is running, the ultrasound is firstly switched off and then after approx. 2
seconds the Degas function is reactivated.
Locking continuous operation ( – in the time scale area)
• To avoid accidentally turning on the continuous operation, the continuous operation can be
deactivated:
Pull the mains plug out.
Press the preset time button, hold it depressed and insert the mains plug at the same time.
The yellow LED "1 min" lights up in confirmation.
The function can be reactivated in the same way. The green LED continuous operation ( ) lights
up in confirmation.
4 Use
Depending on the application, the samples are sonicated indirectly
in laboratory flasks or other sample vessels, which are inserted in the
contact fluid in the oscillating tank.
Direct sonication of objects in the bath fluid in the ultrasonic baths DT
... F is not permitted.
The intended course is described step by step in the following sections.

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4.1 Fill oscillating tank
If inset beakers are used in the ultrasonic bath, a contact fluid must always be used as otherwise
the ultrasound cannot pass through the air (between the ultrasonic oscillating tank and the inset
beaker). This contact fluid must be able to transfer the ultrasound to the fluid in the inset beaker
without loss if possible. The surface tension is very high in municipal and deionised water. As a
result of this high surface tension, the cavitation does not occur throughout the entire solution.
It generally only forms on the bottom of the oscillating tank or on inhomogeneities in the water.
To reduce the surface tension, you should add a surfactant preparation which is biodegradable,
easily disposable, gentle to the material and long-lasting. We recommend TICKOPUR TR 3, which
is easily available from specialist laboratory supply dealers. Even when used for a long period
of time, this preparation does not leave any scrum or incrustations,does not turn cloudy and on
average functions for 5-7 days before needing to be changed.
The ultrasonic bath is turned off for filling.
Check that the ball valve is closed.
Fill 1/3 of oscillating tank with water.
Add the surfactant preparation in the correct dosage, e.g., 1%
TICKOPUR TR 3.
Dosage Filling
quantity
TICKOPUR TR 3
1%
Water + Concentrate
DT 510 F 2.5 litres 2.48 l + 25 ml
DT 1028 F 5.8 litres 5.74 l + 58 ml
Fill carefully up to the filling level mark, avoid as much as possible the
formation of foam. The oscillating tank must be filled depending on the
sample vessels used, as they displace the contact fluid.
IMPORTANT:
With the sample vessels inserted, the filling level should be at or slightly above the filling level
mark, as a too low filling level damages the ultrasonic bath!
Instructions – filling
• Do not fill oscillating tank with hot water. Maximum filling temperature: 50°C.
• At least drinking-quality water must be used to fill the oscillating tank.
• Only use distilled or deionised water without additives in inset beakers or insert tubs.
• Do not use any combustible, explosive, non-aqueous liquids or azeotropic mixtures directly in
the stainless steel oscillating tank (e.g. benzine, solvents). Furthermore, chemicals that contain
or that separate chloride ions (some disinfectants, household cleaners, and dish detergents),
may not be used directly in the stainless steel tank.
• When working with aggressive preparations in inset beakers or insert tubs: Prevent the contact
fluid or stainless steel surfaces from being sprayed. If necessary, replace the contact fluid, clean
the surfaces and wipe dry.

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• When using strongly acidic preparations, the hard chromium plating of the ball valve may
become corroded and the ball valve start to leak.
If the use of a strongly acidic cleaning agent cannot be avoided, the use of a stainless steel ball
valve is recommended.
• When using preparations, the safety instructions included in the product leaflets are to be
fundamentally adhered to.
• Replace used sonication fluids, do not refresh by adding fluids.
4.2 Degassing the fluid
Freshly-filled bath fluid or fluid that has remained in the oscillating tank for a longer period of time
must be degassed prior to use. See also Section 4.5.1.
Remove basket and other accessories from the oscillating tank.
Turn on the ultrasonic bath.
For setting the degassing time (10 min) and starting the DEGAS function, see Section 3.3.

2 cm
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4.3 Ultrasound operation
For optimal diffusion of the ultrasound and protection of the oscillating tank, nothing should be in
contact with the bottom of the bath during sonication. Laboratory flasks and other sample vessels
must be stored in the supplied beaker holder or similar accessories. We recommend the use of
special holding clamps for fixing the sample vessels in the holder (see Section 7). They prevent
the sample vessels from moving around or toppling over during sonication.
• It is possible to treat multiple sample vessels with different fluids at the same time.
• When treating small quantities of combustible fluids in sample vessels, the country-specific
guidelines/regulations that are currently in effect are to be observed!
The ultrasonic bath is turned off for inserting the beakers.
Insert the sample vessels into the beaker holder, ensuring:
• The sample vessels must be immersed at least 2 cm deep in the contact fluid.
• Remove any air bubbles below the vessels.
• The fill level of the oscillating tank must always be at or slightly
above the filling level mark following equipment. A low fill level
will damage the ultrasonic bath!
Set the required sonication period and start the ultrasound, see
Section 3.1.1.
Following sonication, remove the sample vessels from the tank and set down atop a level
surface.
Caution: Depending on the length of the sonication, the flasks/samples may be hot.
Before the next sonication, verify the service life of the contact fluid. Heed the specifications
of the preparation manufacturer. If the solution in the ultrasonic bath becomes heavily
contaminated, it should be replaced earlier as it can reduce the efficacy of the ultrasound.
Notes on the temperature of the bath fluid:
• Ultrasound energy warms up the bath fluid (even without additional heating). The temperature of
the bath fluid can increase rapidly if the ultrasound is active for long periods of time and/or the
oscillating tank is covered.
• To protect the electronic components inside the ultrasonic bath, the ultrasound output is
reduced upon reaching a critical interior temperature in order to inhibit a further increase in the
temperature.
• The fluid in the oscillating tank must not exceed a maximum operating temperature of 100°C.

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4.4 Empty the oscillating tank.
Layers of contamination on the tank bottom reduce the ultrasonic output.
The oscillating tank must be emptied after a long period of use, see Section 4.5.2.
Switching off the ultrasonic bath (ON/OFF button).
Pull the mains plug out.
Do not place the ultrasonic bath in the sink.
Empty the oscillating tank by placing the ball valve handle in direction
of discharge to open outlet.
After emptying the oscillating tank, rinse it thoroughly. Then dry with a
soft cloth.
For further care instructions, see Section 5.
4.5 Further information
4.5.1 Degassing
Degassing the bath fluid increases the ultrasound effect.
Freshly-filled fluid or fluid that has remained in the oscillating tank for a longer period of time
must be degassed prior to use. Gases released in the fluid (e.g., oxygen) are reduced through
degassing and the ultrasound effect is thus significantly improved.
Switch on the ultrasound (without sonication objects, basket, etc.)
- Ultrasonic baths with up to 10 litres bath volume: 10 min
- Ultrasonic baths with more than 10 litres bath volume: 30 min
Time may need to be extended with acidic cleaning solutions.
The cavitation noise changes during degassing, loud degassing noises disappear at the end of the
degassing process, the ultrasonic bath appears to work more quietly.
A lower noise level, however, does not mean a reduction in ultrasonic power. It rather means the
end of the degassing process and an improvement in the ultrasound effect.
4.5.2 Disposal of sonication fluids
The working solution is disposed of pursuant to the specifications of the product leaflet and the
label of the manufacturer of the preparations employed.
The aqueous preparations of DR H. STAMM GmbH are prepared pursuant to the regulations of
the Washing and Cleansing Agents Act, are biodegradable and may be added to sewerage as
working solutions. Strongly acidic and strongly alkaline fluids are to be previously neutralised
pursuant to technical data sheet specifications. The manufacturer specifications for the
corresponding preparations are to be observed.
If the solution contains substances that are dangerous to water after use, e.g., oils, heavy
metal compounds, etc., it must be prepared once the limit values are exceeded (removal of
contaminants) or disposed of as special rubbish.
In every case, the statutory provisions and regulations of municipal wastewater plants are to be
adhered to. Information is provided by municipal wastewater plants as well as by environmental
agencies.

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5 Cleaning and maintenance of the ultrasonic bath
To achieve an optimum lifespan for the ultrasonic bath, cleaning and maintenance are to be
conducted regularly.
CAUTION !
Disconnect the ultrasonic bath from the mains before cleaning / maintenance.
Do not rinse or immerse the ultrasonic bath in water, and do not expose it to splash water.
The guarantee will not apply to damages caused by the use of unsuitable disinfection
agents or detergents.
5.1 Cleaning and care
Oscillating tank
The oscillating tank of an ultrasonic bath is a wear part.
It is continuously exposed to cavitation during ultrasound operation.
Dirt particles contained in the bath fluid abrade and also damage the tank surface through the
movement of the fluid, therefore
• Rinse the oscillating tank with water thoroughly and frequently and dry using a soft cloth.
• Regularly remove residue from the edges of the oscillating tank using a commercial stainless
steel cleaning product without any abrasive additives.
• Do not use steel wool, scrapers or graters for cleaning / maintenance.
• Rust particles from the water pipe system can penetrate the passive protective layer of the
stainless steel, "activating" the stainless steel and making it begin to rust. The extraneous
rust produces localised corrosion of the stainless steel. For this reason, remove rust stains
immediately using a soft cloth and a commercial stainless steel cleaning product without
abrasive additives.
Housing
• Do not use any abrasive cleaners, only commercial care products without abrasive additives.
• Housing is to be wiped off only from the outside with a moist cloth; afterwards, allow to dry alone
or wipe dry.
5.2 Disinfection for medical applications
If disinfection of the ultrasonic bath is not performed correctly or regularly, there is a risk of
microorganisms colonising the device and causing microbiological contamination, particularly on
the rim of the bath and around the outflow, which can result in a cross infection. Consequently,
the baths and surfaces of the device must be disinfected and cleaned regularly. The disinfection
should be performed regularly by the operator in accordance with the hygiene plan and using a
VAH-certified/1 or effective surface disinfectant.
Accessories such as holders and baskets should be processed regularly in a cleaning and
disinfection unit.
5.3 Warehousing / storing
During long periods of non-use, the ultrasonic bath is to be stored in a cool, dry location.
/1 VAH: Verbund für angewandte Hygiene (Alliance for Applied Hygiene)/Germany

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6 Maintenance and repair
6.1 Maintenance
SONOREX ultrasonic baths require no maintenance.
For purposes of regular control, the following functional checks may be carried out.
6.2 Functional checks
Check the LEDs
A test routine can be started for an internal function check:
The ultrasonic bath must be switched off for this. When the Start/Stop button is kept held down,
the ultrasonic bath is switched on with the ON/OFF button.
All LEDs light up after each other for a 1/3 second. The last set values are then displayed.
The test is then successfully completed.
If there are any deviations, the ultrasonic bath must be sent in for checking/repairs.
Monitoring the ultrasound
Function can be checked using a standard wattmeter. It is to be inserted between the ultrasonic
bath's mains plug and the socket.
• Fill the oscillating tank with fluid, see Section 4.1.
• Switch ultrasound on: Next, the value displayed is to be compared with the corresponding value
in the technical data (Section 1.4) (tolerances ± 20%).
Checking the ultrasound effect
For monitoring, we recommend the performance of a foil test (biannually).
A suitable frame for the foil test can be requested from the manufacturer. Customary aluminium foil
is used to conduct the test. Next, a comparison is made with previously-generated foils.
For more detailed information, please see the appendix.
A measurement procedure is described in DIN SPEC 40170:2013-11 (Measurement and
evaluation of cavitation noise).
6.3 Error analysis
SONOREX ultrasonic baths are robustly constructed and designed for a high level of reliability.
Nevertheless, the possibility of a malfunction due to a defective component can never be fully
discounted.
The following overview of possible sources of error should serve as an aid for error detection and
elimination.
Ultrasonic bath oscillates weakly, unevenly or noise is too loud:
- Has fluid been properly degassed?
- Is it overloaded with objects to be treated?
- Uneven noises (wobbling)



Treat for 10 min.
Remove a few parts.
No error – slightly adjust the filling
level of the fluid.
Slight erosion visible on the bottom of the bath? Natural wear.
Ultrasonic bath OK.
Any malfunctions are to be communicated in writing to the manufacturer.

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6.4 Repairs and service
If errors or defects are ascertained as a result of the functional check, and if it is impossible to
rectify these, the ultrasonic bath may no longer be used. In such a case, please contact the
supplier or the manufacturer:
BANDELIN electronic GmbH & Co. KG
Heinrichstrasse 3-4
12207 Berlin
Repair service: E-mail:
Tel.: +49-(0)-30 – 768 80 – 13 [email protected]
Fax: +49-(0)-30 – 76 88 02 00 13
In the case of returns, the general terms and conditions for delivery and payment of
BANDELIN electronic GmbH & Co. KG shall apply.
In addition, the ultrasonic bath is to be cleaned and decontaminated (if necessary), see the
following Section.
6.4.1 Decontamination certificate
If the ultrasonic bath is sent back to the manufacturer for repairs (with accessories, as the case
may be), the form "Certificate of Decontamination" is to be filled out and affixed to the packaging
on the outside, in a visible spot.
If this form has not been filled out, we reserve the right to refuse receipt of the package in order to
protect our employees.
The form can be downloaded from the Internet as a PDF file:
www.bandelin.com - Download ...
A sample copy can be found in the appendix.
6.4.2 Exchanging fuses
CAUTION!
Repair work may only be carried out by authorised, qualified personnel or by the manufacturer.
The manufacturer assumes no liability for unauthorised interventions on the ultrasonic bath!
The mains plug must be pulled out before opening the ultrasonic bath!
There is a risk of electric shock from live parts in the ultrasonic bath!
Empty ultrasonic bath.
Turn over ultrasonic bath.
Loosen the screws around the casing.
Carefully remove the base plate.
If required, carefully separate the electrical plug connections between the base plate with
generator circuit board and the casing with oscillating tank.
Exchanging fuses:
- The fuses are located on the generator circuit board.
- After inspection, exchange only the defective fuses.
Assembly in reverse order.