Elma Schmidbauer Highea 3 User manual

97050963(1) 2017-09
OPERATING INSTRUCTIONS
Ultrasonic Cleaning Units
S30H - S60H - S100H
english 

CONTENTS
1General Information 2
2Important safety warnings 2
2.1 Instructions for the use of the present manual 2
2.2 Intended Use 3
2.3 Instructions for the use of the unit 3
3Functioning 5
3.1 Ultrasonic cleaning factors 5
4Product description 6
4.1 Product features 6
4.2 Relevant European Directives 7
4.3 Classification 7
4.4 Delivered equipment 7
4.5 Unit front view / side view 8
4.6 Unit back view 9
4.7 Turning knob for draining the tank 10
4.8 Description of operating elements 11
4.9 Operating and display functions 12
5Initial operation 15
5.1 Set up of the liquid drain 16
5.2 Connecting the unit to the mains 16
5.3 Filling of the unit 17
5.4 Placement of cleaning items 18
5.5 Degassing of liquid 19
6Ultrasonic cleaning process 20
6.1 Heating up of the cleaning liquid 21
6.2 Temperature-controlled cleaning 22
6.3 Automatic mixing of the liquid during heating up 22
6.4 Starting the cleaning process manually 23
6.5 Sweep function 23
6.6 After the cleaning 24
7Cleaning media 25
7.1 Limitations of use of cleaners containing solvents 25
7.2 Limitations on aqueous cleaners 26
8Maintenance 27
8.1 Maintenance / Care 27
8.2 Service life of the transducer tank 27
8.3 Repair 28
9Guarantee 29
10 Technical details 29
11 Trouble shooting 30
12 Putting out of action and waste disposal 32
13 Manufacturer's contact address 33
14 Information and After-Sales Service 33

2
1 General Information
The present Operating Instructions are part of the delivered equipment. They must be ready for use
at any time and remain with the unit in case of resale.
We reserve the right to carry out technical modifications on the unit due to advanced development.
An operating manual cannot take account of every conceivable use. An operating manual cannot
take account of every possible use. Contact your dealer or the manufacturer for further information
or in the event of problems which are not covered or not sufficiently covered in this operating
manual.
2 Important safety warnings
Please observe any additional national safety regulations that may apply.
2.1 Instructions for the use of the present manual
Carefully read the Operating Instructions before you operate the unit. Do not use the present
electrical unit for any purpose other than described in the Operating Instructions.
Warning symbols used in the present manual
This symbol warns of the risk of injury caused by electricity.
This symbol warns of the risk of injury caused by explosion and/or deflagration.
This symbol warns of the risk of injury caused by hot surfaces and liquids.
This symbol warns of the risk of injury.
This symbol warns of the risk of damage to the equipment.
This symbol marks additional information.

3
Signal words used in the present manual
Danger
The signal word Danger warns of a potential risk of serious injury and danger to
life.
Warning
The signal word Warning warns of the risk of serious injury and heavy damage to
the equipment.
Caution
The signal word Caution warns of the risk of light injury or damage to the
equipment.
Attention
The signal word Attention warns of the risk of damage to the equipment.
2.2 Intended Use
This ultrasonic cleaning device is only intended for the treatment of medical, surgical, invasive and
non-invasive devices.
2.3 Instructions for the use of the unit
User
Operation of the unit by authorized and instructed staff only. Observe the instructions given in the
manual.
Mains connection
For safety reasons, the present unit must be connected to a correctly grounded socket only. The
technical details indicated on the nameplate must correspond with the available mains connection
details, in particular those of the mains voltage and current connected value.
Prevention of electrical accidents
For purposes of maintenance and care of the unit, in case of suspected humidity inside the unit or
in case of malfunctions and after operation pull the mains plug.
The unit must be opened by authorised specialised personnel only!
Cleaning liquid
Fill the unit with a sufficient quantity of cleaning liquid before switch-on. Flammable liquids must not
be treated by ultrasound directly in the cleaning tank: risk of fire and explosion!
Hot surfaces and liquids
Risk of burning and scalding! Depending on the operational period of the unit, unit surfaces,
cleaning liquid, basket and cleaning items can heat up considerably.
Noise emission
Ultrasonic units can produce annoying sounds.
Wear personal ear protection devices when working close to an ultrasonic unit which is operated
without cover.

4
Sound transmission at physical contact
Do not reach inside the cleaning liquid or touch sound-carrying parts (tank, basket, cleaning items,
etc.) during operation..
Exclusion of liability
The manufacturer cannot be held liable for damages on persons, equipment or cleaning items
caused by improper use. The operator is responsible for the instruction of the operating staff.
Storage and transport conditions
Temperature during storage: +5 C (+ 41 F) to + 40 C (+ 104 F)
Temperature during transport: -15 C (+ 5 F) to +60 C (+ 140 F)
Humidity and air pressure during storage and transport:
10% - 80 % relative humidity; non-condensing
Pressure range 500 hPa –1060 hPa absolute

5
3 Functioning
Today, cleaning by ultrasound is the most modern fine cleaning method.
The electric high-frequency energy created by an ultrasonic generator is transformed into
mechanical energy by piezo-electrical transducer systems and is then transmitted into the bath.
This process creates millions of tiny vacuum bubbles which implode due to the variations of
pressure caused by the ultrasonic activity. Highly energetic liquid jets are created. These jets
remove dirt particles from surfaces and even from the smallest grooves and bores.
3.1 Ultrasonic cleaning factors
Basically, the cleaning result depends on four factors:
Mechanical energy
Ultrasonic energy is probably the most important mechanical factor in the cleaning process. This
energy must be transmitted through a liquid medium to the surfaces which are to be cleaned.
The present unit is fitted with the innovative sweep function device: electronic oscillation of the
sound field (sweep function) prevents the formation of zones of low performance in the ultrasonic
bath.
Cleaning media
For saponification and removal of the dirt particles a suitable cleaning agent is required. Cleaning
chemicals are also necessary to reduce the surface tension. This increases considerably the
efficiency of the ultrasonic activity.
Temperature
The effect of the cleaning medium is improved by the optimised temperature of the cleaning liquid.
Cleaning period
The cleaning period depends on the degree and the kind of contamination and on the correct
selection of ultrasonic energy, cleaning agent and temperature.

6
4 Product description
4.1 Product features
Cleaning tank made of cavitation-resistant stainless steel.
Casing made of stainless steel, hygienic and easy to clean.
High performance sandwich transducer systems.
Sweep function for an optimised sound field distribution in the cleaning liquid.
Degas function for the efficient degassing of the cleaning liquid and for laboratory purposes.
Auto degas function for automatic degassing cycles, i.e. with fresh cleaning liquids.
Quick-drain valve on the back of the unit.
Dry-run protected heating
Temperature-controlled ultrasonic operation: the cleaning process starts automatically when
the set temperature is reached; the cleaning liquid is regularly mixed during the heating up so
that the cleaning liquid is evenly heated
Automatic mixing during heating-up period.
Plug-in mains supply.
Electronical turning knobs.
Display of both set values and actual values via LED settings.
Splash-water-proof operating panel.
Plastic carrying handles.
Automatic switch-off after 12 h operation to prevent unintended permanent operation.

7
4.2 Relevant European Directives
The product described in this manual is manufactured in accordance with the highest safety
standards and doesn't represent any danger for the operator if used according to the following
instructions.
The product is in accordance with the following European Directives as applicable:
93/42/CEE, and subsequent amendments and additions, concerning medical devices.
2011/65/UE (Rohs II) on restriction of hazardous substances in electrical and electronic
equipment.
4.3 Classification
Class I (according to Directive 93/42/EEC and subsequent amendments)
4.4 Delivered equipment
Ultrasonic cleaning unit
Mains cable
Tube socket with tube clamp
Operating Instructions
N. 2 beaker
Beaker holder
Cover
Cleaning basket

8
4.5 Unit front view / side view
A
Filling line indicates the recommended maximum filling level. This level should not be
exceeded even with cleaning items inside.
B
Plastic carrying handles for the safe transportation of the unit even with hot casing.
C
Turning knob for the draining of the tank functional description see section “Turning knob
for draining the tank”.
D
Operating panel for the control of the operating functions.
Description see section “Description of operating elements”.
D
A
B
C

9
4.6 Unit back view
A
Liquid drain duct for draining the tank.
B
Mains supply socket for quick and easy removal of the mains cable e.g. for transportation
purposes.
A
B

10
4.7 Turning knob for draining the tank
A
Vertical position: drain open
B
Horizontal position: drain shut
B
A

11
4.8 Description of operating elements
A
Turning knob cleaning period
Setting options for short-period operation: 1; 2; 3; 4; 5; 10; 15; 20; 25; 30 min (with
automatic switch-off).
Permanent position ∞for continued operation. Here the unit must be switched off by
hand.
For safety reasons the unit is automatically switched off after 12h permanent operation.
B
LED display cleaning period indication of set period and remaining period.
C
Turning knob temperature * (applies only for units with heating) temperature range
variable in 5°C steps from 30° up to 80°C.
D
LED display temperature (applies only for units with heating) indication of set value and
actual value of liquid temperature.
E
Key sweep function for an optimised sound field distribution in the cleaning liquid; Sweep
LED.
F
Key degas function (manual and auto degas) for the efficient degassing of fresh cleaning
liquid and for special applications in the laboratory.
Degas LED.
G
Key start/stop for ultrasonic operation and temperature-controlled operation. Ultrasonic
LED.
H
Key on/off for switching the unit on and off; on/off LED
(*)* for setting the value: turn knob clockwise
for resetting the value: turn knob anti-clockwise.
E
C
D
B
A
F
G
H

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4.9 Operating and display functions
Action
Setting
Result
Display
switch on unit
press on/off key
unit is ready for
operation
on/off LED is on
switch off the unit
press on/off key
unit is switched off
all displays are off
start ultrasound
- now -
select period by
turning knob for
cleaning period
press key ►■ (ultra-
sound)
ultrasound is
operating
ultrasound LED is on
set period LED is on
remaining period LED
blinks (only in timer
operation)
start ultrasound
- temperature-controlled*;
with mixing of cleaning
liquid –
* if set temperature >
actual temperature;
applies only for units with
heating
set period
set temperature by
turning knob for
temperature
keep key ►■ pressed
for > 2 sec
heating operates
ultrasound is started
automatically after
reaching the set
temperature
set period ultrasound
runs down
ultrasound LED blinks
ultrasound LED blinks
until the set
temperature is
reached; the LED is on
as soon as the
ultrasound is activated
set period LED blinks
as soon as the set
temperature is reached
the ultrasound LED is
on
set period LED is on
remaining period LED
blinks
stop ultrasound before
end of set period
turn set period to 0
or
press key ►■
ultrasound switched
off
ultrasound LED is off
set period LED is on

13
Action
Setting
Result
Display
switch on heating*
* applies only for units
with heating
select set
temperature
heating operates
temperature LED is on;
it moves out when the
set temperature is
reached
set temperature LED is
on
actual temperature
LED blinks and goes
towards set temp.
as soon as actual
temp. = set temp., only
the set temp. LED is on
if actual temperature >
set temperature, the
temperature LED starts
blinking again
switch off heating by hand
turn set temperature
to position „0“
heating switched off
temperature LED is off
set temperature LED
blinks
switch on sweep function*
* sweep and degas
cannot be operated at the
same time
select set period
press key ►■
press key sweep
ultrasound operates
in sweep mode
sweep LED is on
ultrasound LED is on
set period LED is on
remaining period LED
blinks
switch off sweep function
press key sweep
sweep function is
switched off
ultrasound continues
in standard operating
mode
sweep LED is off
ultrasound LED is on
set period LED is on
remaining period LED
blinks
switch on degas function*
* sweep and degas
cannot be operated at the
same time
select set period
press key ►■
press key degas
ultrasound operates
in degas mode
degas LED is on
ultrasound LED is on
set period LED is on
remaining period LED
blinks

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Action
Setting
Result
Display
switch off degas function
Press key degas
degas function is
switched off
ultrasound continues
in standard operating
mode
degas LED is off
ultrasound LED is on
set period LED is on
remaining period LED
blinks
switch on auto degas
function*
* sweep and degas
cannot be operated at the
same time
keep degas key
pressed > 2 sec
ultrasound operates
in auto degas mode
for 10 minutes and
then switches off
degas LED blinks
ultrasound LED is on

15
5 Initial operation
Packing
Please keep the original packing or dispose of it according to the relevant waste disposal
regulations. You can also return the packing to the manufacturer free destination (to your account).
Check for transport damages
Check the unit for possible transport damages before initial operation. In case of visible damage do
not connect the unit to the mains. Contact your supplier and forwarding agent.
Placement
For operation, place the unit on a dry and solid surface. Ensure that the workplace is sufficiently
ventilated!
Do not use a soft surface (e.g. a carpet) as this may impede the ventilation of the unit
DANGER
Risk of electrocution due to humidity inside the unit!
Protect the unit from entering humidity.
The unit inside is splash-water-proof. Keep workplace and casing dry in order to prevent
electrical accidents and damages on the unit.
Ambient conditions
Allowed ambient temperature during operation: +5°C - +40°C
Allowed relative humidity of air during operation: max. 80%
In-door operation only

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5.1 Set up of the liquid drain
On the delivered unit, the drain duct for the cleaning liquid is closed off with a plastic screw cap.
For setting up the liquid drain fix the delivered tube socket to the drain duct.
1. Unscrew (clockwise) the plastic screw cap
2. Screw the tube socket (included in delivery) onto the inside thread of the drain duct (clockwise).
3. Turn the tube socket into the required drain position.
The plastic thread is self-sealing when the socket has been screwed in by hand as far as
possible.
Note: Unscrewing the tube socket (anti-clockwise) can cause a leak of the thread.
4. The drain duct is now ready for connection to a customer-provided discharge system. Use a
standard tube (dia 1/2"). Push the tube onto the socket and fix it with the clamp included in the
delivery.
5.2 Connecting the unit to the mains
Required mains conditions
Earth grounded socket:
1 phase (220-240 V); 1 N; 1 PE protective earth.
The power supply must be protected by an earth leakage circuit breaker.
Connect mains cable
Use the plug-in mains cable delivered with the unit. Connect the unit to a grounded shockproof
socket only. Ensure that the values indicated on the nameplate of the unit correspond with the
available connecting conditions.
The mains plug must be connected to an easily accessible socket only, as it serves as interrupted
device.

17
5.3 Filling of the unit
Shut the drain
Shut the drain duct before filling the tank. (Turning knob for draining of the tank into horizontal
position.
Observe filling level
Fill the cleaning tank with a sufficient quantity of a suitable cleaning liquid before switch-on.
The optimum filling level is approx. 2/3 of the tank volume. The marked maximum filling level
of the tank indicates the recommended filling level with cleaning items in the bath.
Suitable cleaning agents
Ensure that the chosen cleaning agent is suitable for treatment in an ultrasonic bath and observe
the instructions on dosage and the compatibility of the material.
Prohibited cleaning agents
Flammable products are generally not allowed for use in an ultrasonic bath.
DANGER
Risk of fire and explosion!
Never use flammable liquids or solvents directly in an ultrasonic cleaning bath.
Ultrasonic activity increases the vaporisation of liquids and creates a very fine mist which can
catch fire on any ignition source.
CAUTION
Risk of damage to the transducer tank!
Do not use any acid cleaning agents (pH value < 7) directly in the stainless steel tank if the
cleaning items or the contamination of the cleaning items contain halogenides (fluorides,
chlorides or bromides). The same applies to NaCl solutions.
The stainless steel tank can be destroyed by crevice corrosion in a very short time.
Substances that cause crevice corrosion can be contained in household cleaners.
For queries please contact the manufacturer or your supplier.

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5.4 Placement of cleaning items
CAUTION
Caution! The ultrasonic bath has been designed for the ultrasonic treatment of items and
liquids only. Do not clean living beings or plants!
CAUTION
Do not reach inside the tank during ultrasonic operation.
Cell walls can be damaged by prolonged exposure to ultrasonic activity.
For placing and taking out the cleaning items always switch off the unit..
CAUTION
Danger of damage to the transducer system!
Fill no liquid > 60°C and < 10°C in the ultrasonic tank.
No cleaning items on the bottom of the tank
Do not place the cleaning items directly onto the bottom of the cleaning tank, as this might lead to
damages to the unit.
Use cleaning basket
Place the cleaning items into the stainless steel cleaning basket.
Acid tank
For the use of cleaning chemicals which might destroy or damage the stainless steel tank use a
separate container. For the special plastic cleaner tank for acid chemicals please contact your
supplier.