Elma Elmasonic xtra ST User manual

Elma Schmidbauer GmbH Gottlieb-Daimler-Str. 17 D-78224 Singen Phone [phone] / 882-0 Fax [phone] / 882-266 [email protected]
www.elma-ultrasonic.com
document ref. 107 7417
Operating Instructions
Elmasonic xtra ST
Ultrasonic Cleaning Units
english 

Inhalt
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© Elma Schmidbauer GmbH
Contents
1General....................................................................... 4
2Important safety warnings .......................................... 4
2.1 Instructions for the use of the present manual...........4
2.2 Safety instructions for the use of the unit...................5
3Ultrasonic cleaning factors ......................................... 6
3.1 Functioning................................................................6
3.2 Ultrasonic cleaning process.......................................7
4Product description..................................................... 8
4.1 Product features ........................................................8
4.2 CE conformity............................................................9
4.3 RFI Statement (European Union)..............................9
4.4 Delivered equipment..................................................9
4.5 Optional accessories .................................................9
4.6 Technical details......................................................10
4.6.1 Elmasonic xtra ST 300-800H ...............................10
4.6.2 Elmasonic xtra ST 1400-2500H ...........................12
4.7 Description of unit features......................................14
4.8 Description of ultrasonic tank...................................15
4.9 Description of cleaning basket (optional accessory)16
4.10 Description of operating elements...........................17
5Before initial operation.............................................. 18
5.1 Unpacking and placement.......................................18
5.2 Connecting the unit to the mains.............................19
6Putting unit into operation......................................... 20
6.1 Filling of the unit.......................................................20
6.2 Heating up of the cleaning liquid..............................21
6.3 Degassing of liquid ..................................................22
6.4 Setting of ultrasonic frequency ................................22
6.5 Cleaning in ultrasonic mode pulse...........................23
6.6 Cleaning in ultrasonic mode dynamic......................24
7Ultrasonic cleaning process...................................... 25
7.1 Immediate start-up of ultrasonic cleaning process ..26
7.2 Temperature-controlled cleaning.............................27
(with automatic start-up of the cleaning process) .................27
7.3 Cleaning with predefined standard setting...............27
7.4 Placement of the cleaning items..............................28
7.5 After the cleaning.....................................................28
8Cleaning media ........................................................ 29
8.1 Limitations of use of cleaners containing solvents...29

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8.2 Limitations on aqueous cleaners.............................30
8.3 List of recommended cleaning media......................31
8.3.1 Dental...................................................................31
8.3.2 Medical.................................................................31
8.3.3 Optics...................................................................32
8.3.4 Laboratory............................................................32
8.3.5 Jewellery ..............................................................32
8.3.6 Watches ...............................................................33
8.3.7 Industry and workshop .........................................33
9Maintenance............................................................. 34
9.1 Maintenance and care.............................................34
9.2 Service life of the ultrasonic cleaner........................35
9.3 Repair and return shipment.....................................35
9.4 Malfunctions.............................................................36
9.5 Replacing the electronic unit....................................37
10 Putting out of action and waste disposal ............... 39
11 Manufacturer's contact address............................. 39

General
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© Elma Schmidbauer GmbH
1 General
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
Carefully read the present operating instructions and operate
the electric unit in compliance with the instructions only.
Please observe any additional national safety regulations that
may apply.
The manufacturer cannot be held liable for any damages on
persons, equipment or cleaning items caused by improper use
against the instructions given in the present manual.
The operator is responsible for the correct instruction of the
operating staff.
2.1 Instructions for the use of the present manual
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.
Signal words used in the present manual:
The signal word danger warns of a potential risk of serious
injury and danger to life.
The signal word warning warns of the risk of serious injury and
heavy damage to the equipment.
The signal word caution warns of the risk of light injury or
damage to the equipment.
The signal word attention warns of the risk of damage to the
equipment.
Carefully read and
observe before initial
operation
Exclusion of liability
Danger
Warning
Caution
Attention

Important safety warnings
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2.2 Safety instructions for the use of the unit
The present ultrasonic cleaning unit has been designed for the
treatment of items immersed in a cleaning liquid only.
It is not intended for the use in areas with potentially explosive
atmosphere.
Operation of the unit by authorized and instructed staff only.
Observe the instructions given in the manual.
Check unit and mains cable for transport damages. Do not
operate the unit in case of visible damages!
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.
As the units do not have any main switch, they can be supplied
with power individually or in groups via a main switch.
The units must only be disconnected from the mains power
supply when they are in standby mode.
If peripheric units from third party providers have to be supplied
with power, this must be done using separate switching
devices.
Place the unit on a dry surface. The work area must be
sufficiently ventilated to allow any vapours arising from the
cleaning liquid to be carried off. Keep work surface, housing
and operating elements dry.
For purposes of filling, 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.
The unit must be operated with aqueous cleaning media only.
Flammable liquids must not be treated by ultrasound directly in
the cleaning tank: risk of fire and explosion!
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.
During operation with high temperatures inside the cleaning
bath open the unit with care: hot steam can emerge when the
cover is lifted.
Do not move the filled unit, obstacles may cause the unit to tilt
over, or damage the rollers.
Intended use
User
Check for damage
Mains connection
Mains power supply
via main switch
Placement
Prevention of
electrical accidents
Cleaning liquid
Hot surfaces and
liquids
Hot steam
Move unit only when
empty

Ultrasonic cleaning factors
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Ultrasonic units can produce annoying sounds.
Wear personal ear protection devices when working close to an
ultrasonic unit which is operated without cover.
The use of personal ear protection devices is particularly
recommended for operating the unit at 25 kHz with open cover.
Do not reach inside the cleaning liquid or touch sound-carrying
parts (tank, basket, cleaning items, etc.) during operation.
3 Ultrasonic cleaning factors
3.1 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.
Basically, the cleaning result depends on four factors:
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 Elmasonic 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.
For saponification and removal of the dirt particles a suitable
cleaning agent is required. We have a large range of cleaning
media on offer.
The effect of the cleaning medium is improved by the optimised
temperature of the cleaning liquid.
The cleaning period depends on the degree and the kind of
contamination and on the correct selection of ultrasonic energy,
cleaning agent and temperature.
Noise emission
Sound transmission
at physical contact
Mechanical energy
Cleaning media
Temperature
Cleaning period

Ultrasonic cleaning factors
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3.2 Ultrasonic cleaning process
1. Fill the ultrasonic tank with water and cleaning concentrate
(Section 6.1).
2. Heat up the cleaning liquid, if required for the intended
cleaning application (Section 6.2).
3. Degas the cleaning liquid –operation in pulse mode at 45
kHz (Section 6.3).
4. Select the cleaning frequency –25kHz or 45 kHz depending
on the intended cleaning application (Section 6.4).
5. Activate the operating mode pulse - if required for the
intended cleaning application (Section 6.5).
6. Activate the operating mode dynamic –if required for the
intended cleaning application (Section 6.6).
7. Switch on the ultrasound (manual or automatic start-up)
(Section 7.1 and Section 7.2).
8. Put the cleaning items into the cleaning bath (Section 7.4.
9. Rinse if necessary (Section 7.5).
10. Dry if necessary (Section 7.5).

Product description
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4 Product description
4.1 Product features
ultrasonic tank made of stainless steel,
slanted tank floor to facilitate the draining of the cleaning
liquid,
fixtures to hang the basket into the tank both in cleaning
and dripping-off position,
sandwich-type performance transducer systems,
two ultrasonic frequencies available:25 kHz for coarse
and preliminary cleaning, and 45 kHz for fine cleaning,
integrated Sweep mode for a continuous shifting of
sound field maxima, guarantees a more homogeneous
sound field distribution in the bath,
activatable Pulse mode for an intensified ultrasonic
cleaning power for tenacious contaminations; also the
operational readiness of the unit (cavitational threshold
reached) after an exchange of the cleaning liquid or after
an exchange of baskets is optimized (through a
shortening of the cleaning periods),
dynamic function, optionally activated; combination
between sweep and pulse functions. For efficient
ultrasonic cleaning power. With greater, more effective
ultrasonic power,
heating with temperature control (30°C –80°C),
temperature-controlled ultrasonic operation: ultrasound
starts automatically as soon as the pre-set temperature
is reached,
automatic safety switch-off after 12 h operation to
prevent unintended permanent operation,
automatic safety switch-off at 90 °C to protect the
cleaning items against excess temperatures,
indication of set values and actual values on LED
display,
housing made of stainless steel,
rollers to facilitate moving the empty unit,
drain duct on the unit side, made of stainless steel,
Sound-protection cover with hinges (optional).

Product description
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4.2 CE conformity
The present ultrasonic cleaning unit complies with the CE
marking criteria with regard to the EMC directive 2014/30/EU,
and to the low voltage directive 2014/35/EU.
The declaration of conformity is available from the
manufacturer.
4.3 RFI Statement (European Union)
This is a Class A product.
Please note:
This equipment has been approved for business purposes with
regard to electromagnetic interference.
In a domestic environment this product may cause radio
interference in which case the user may be required to take
adequate measures. For this please contact your supplier or the
manufacturer of the unit.
4.4 Delivered equipment
Ultrasonic cleaning unit
Operating Instructions
4.5 Optional accessories
Stainless-steel basket (suitable for small-size items only to a
limited degree)
Additional fine-mesh sheet to be placed in the basket (for
small-size bulk material)
Stainless-steel cover
Sound-protection cover with hinges (optional)

Product description
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4.6 Technical details
4.6.1 Elmasonic xtra ST 300-800H
ES xtra ST
300H
ES xtra ST
500H
ES xtra ST
600H
(1 Heating
cartridge)
ES xtra ST
600H
(2 Heating
cartridge)
ES xtra ST
800H
Mechanical Data
Tank max. volume
(L)
30
50
58
58
83
Tank service
volume (L)
22
42
45
45
70
Tank internal
dimensions
W/D/H (ca. mm)
300/300/300
300/300/500
500/330/350
500/330/350
500/330/500
Unit external
dimensions W/D/H
(ca. mm)
500/550/936
500/550/936
670/580/936
670/580/936
670/580/936
Weight (ca. kg)
50
54
61
61
66
Basket loading
max. (ca. kg)
12
12
25
25
40
Ball valve (“)
3/4
3/4
3/4
3/4
3/4
Electrical Data
Mains voltage
(Vac)
230–240
(50/60 Hz)
230–240
(50/60 Hz)
230–240
(50/60 Hz)
3 x 400
V/N/PE-50 Hz
3 x 200-208
V/PE-60 Hz
3 x 400
V/N/PE-50 Hz
3 x 200-208
V/PE-60 Hz
Ultrasonic
frequency (kHz)
25 / 45
25 / 45
25 / 45
25 / 45
25 / 45
Power
consumption total
(W)
2000
2000
2400
3800
5200
Ultrasonic power
effective
(Ultrasound/Pulse
Mode) (W)
480
(25/45 kHz)
540 (25 kHz)
600 (45 kHz)
800 (25kHz)
900 (45 kHz)
800 (25kHz)
900 (45 kHz)
900 (25kHz)
1000 (45 kHz)
Ultrasonic peak
power max.*
(Ultrasound/Pulse
Mode) (W)
1920
(25/45 kHz)
1920
(25/45 kHz)
3200 (25 kHz)
3600 (45 kHz)
3200 (25 kHz)
3600 (45 kHz)
3600 (25kHz)
4000 (45 kHz)
Ultrasonic power
effective (Dynamic
Mode) (W)
600
(25/45 kHz)
600
(25/45 kHz)
1000
(25/45 kHz)
1000
(25/45 kHz
1000
(25/45 kHz)
Ultrasonic peak
power max.*
(Dynamic Mode)
(W)
2400
(25/45 kHz)
2400
(25/45 kHz)
4000
(25/45 kHz)
4000
(25/45 kHz)
4000
(25/45 kHz)

Product description
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Heating power (W)
1400
1400
1400
2800
4200
Accessories
Basket
(accessory)
internal
dimensions W/D/H
(ca. mm)
255/230/170
255/230/370
400/255/220
400/255/220
400/255/370
Acoustic level
Sound pressure
level (LpAU) **
< 80 dB
Ultrasonic level
(LpZ) **
< 110 dB
* The signal form of the waves results in a factor 4 for the ultrasonic peak maximum
** Sound pressure level measured in 1 m distance, with basket and noise protection cover

Product description
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4.6.2 Elmasonic xtra ST 1400-2500H
ES xtra ST 1400H
ES xtra ST 1600H
ES xtra ST 2500H
Mechanical
Data
Tank max.
volume (L)
126
162
255
Tank service
volume (L)
97
133
215
Tank internal
dimensions
W/D/H (ca.
mm)
600/600/350
600/600/450
750/650/520
Unit external
dimensions
W/D/H (ca.
mm)
885/850/936
885/850/936
1035/900/936
Weight
(ca. kg)
87
95
105
Basket loading
max. (ca. kg)
50
50
50
Ball valve (“)
1
1
1
Electrical Data
Mains voltage
(Vac)
3 x 400
V/N/PE-50 Hz
3 x 200-208
V/PE-60 Hz
3 x 400
V/N/PE-50 Hz
3 x 200-208
V/PE-60 Hz
3 x 400
V/N/PE-50 Hz
3 x 200-208
V/PE-60 Hz
Ultrasonic
frequency (kHz)
25/45
25/45
25/45
Power
consumption
total (W)
6800
9500
9500
Ultrasonic
power effective
(Ultrasound/Pul
se Mode) (W)
1440 (25/45 kHz)
1600 (25kHz)
1800 (45 kHz)
1600 (25kHz)
1800 (45 kHz)
Ultrasonic peak
power max.*
(Ultrasound/Pul
se Mode) (W)
5760 (25/45 kHz)
6400 (25kHz)
7200 (45 kHz)
6400 (25kHz)
7200 (45 kHz)
Ultrasonic
power effective
(Dynamic
Mode) (W)
1800 (25/45 kHz)
2000 (25/45 kHz)
2000 (25/45 kHz)
Ultrasonic peak
power max.*
(Dynamic
Mode) (W)
7200 (25/45 kHz)
8000 (25/45 kHz)
8000 (25/45 kHz)

Product description
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Heating power
(W)
5000
7500
7500
Accessories
Basket
(accessory)
internal
dimensions
W/D/H (ca.
mm)
490/525/210
480/525/300
630/575/370
Acoustic level
Sound pressure
level (LpAU) **
< 80 dB
Ultrasonic level
(LpZ) **
< 100dB
* The signal form of the waves results in a factor 4 for the ultrasonic peak maximum
** Sound pressure level measured in 1 m distance, with basket and noise protection cover

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4.7 Description of unit features
Fig. 4.7 Front and side view
Stainless-steel cover (optional accessory equipment) to be
placed on the tank edge.
Sound-protection cover with hinges (accessory equipment,
cannot be retrofitted) with collecting device for condensate,
perfect noise protection.
Ventilation slots ensure adequate ventilation inside the unit
Operating panel to control all unit functions
Description please see Section 4.10.
Operating unit with powerful electronics, easy-care and
simple to exchange.
Stainless-steel ball valve to drain the ultrasonic tank.
Rollers for an improved mobility of the unit (move unit when
empty), 2 rollers are fitted with locking brake.
A
B
C
D
E
F
G
B
A
D
E
C
F
G

Product description
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4.8 Description of ultrasonic tank
Fig. 4.8 Ultrasonic tank
Fig. 4.84.8.1 Ultrasonic tank
Ultrasonic tank made of stainless steel.
The transducers are mounted underneath the tank bottom. The
tank bottom is inclined towards the drain.
Suspension elements 4x to support the basket in cleaning /
drip-off position
Protecting bar for heating element
Heating element
Blank plug, connection for second heating cartridge (for
model ES xtra ST 600H only)
Filling level marking indicates recommended filling level
A
B
C
D
E
F
A
C
C
B
D
E
F

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4.9 Description of cleaning basket (optional accessory)
The special cleaning basket for this type of unit can be hooked
onto the suspension elements at the tank walls in two ways.
The cleaning basket is hooked by its bow into the two
suspension elements on the front wall of the tank (see fig.
4.9.A). The tank floor will not be damaged by the basket feet.
Fig. 4.9. Cleaning basket in cleaning position
The cleaning basket is placed onto the 4 suspension elements
in the tank by the 4 hooks at the bottom (see fig. 4.9.1.A). The
bow should point to the unit front (this makes sense for units
that are fitted with flip-top cover).
Fig. 4.9.1 Cleaning basket in drip-off position
Cleaning position
Drip-off position
A
A
A

Product description
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4.10 Description of operating elements
Fig. 4.10 Operating panel
Key on/off switches the unit on and off.
When the unit is connected to the mains the LED in the key
lights up red (standby); the red LED goes out, unless another
key is activated within 1 min.
As soon as the key is activated the operating panel is ready for
operation and the LED in the key lights up green.
Key heating switches on the heating control. The LED in the
key lights up green when the heating is operating.
Setting of temperature is possible in 5°C steps between 30° –
80°C.
LED display temperature for set and actual values of the
temperature in the bath. The set value is indicated by a
permanent red LED, the actual value is indicated by a flashing
LED.
LED display cleaning time for set period and remaining
period. The set value is indicated by a permanent red LED, the
remaining cleaning period is indicated by a flashing LED.
Setting of cleaning time Short period operation: 1; 2; 3; 4; 5;
10; 15; 20; 25; 30 min (automatic switch-off).
Permanent operation ∞for continued operation. Switch-off by
hand.
For reasons of safety the unit is automatically switched off after
12 h permanent operation.
Ultrasonic frequency selector key 25 kHz / 45 kHz. The
selected frequency is indicated by a green LED in the key. For
a more detailed description see also Section 6.4.
dynamic button for effective cleaning thanks to even power
distribution and amplification. The green LED lights up on the
key panel when activated.
Key ultrasonic operation starts up the ultrasonic unit either by
hand (permanent green LED is on) or temperature-controlled
(LED flashes). For a description see Sections 7.1 and 7.2.
Key pulse adds ultrasonic power for difficult cleaning jobs.
When activated the green LED in the key is lighted.
A
B
C
D
E
F
G
H
I
J
C
H
I
J
A
B
D
E
F
G

Before initial operation
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5 Before initial operation
5.1 Unpacking and placement
Please keep the original packing for possible later service
purposes or dispose of it in compliance with the relevant waste
disposal regulations. You can also return the packing to the
manufacturer or to your supplier.
Check the unit for possible transport damages before initial
operation. In case of visible damage do not operate the unit.
Contact your supplier and the forwarding agent.
For operation place the unit on a stable, even and dry surface.
The surface must be resistant to any cleaning chemicals that
might be used. Ensure that the workplace is sufficiently
ventilated!
Risk of electrocution due to humidity inside the unit!
Protect the unit from entering humidity.
The unit inside is splash-proof.
Keep workplace and casing dry in order to prevent electrical
accidents and damages on the unit.
The following requirements are mandatory for the safe
operation of the unit:
Allowed ambient temperature during operation:
+5°C - +40°C
Allowed relative humidity of air during operation: max. 80%
Admissible ambient temperature change for the unit and the
bath liquid: non-condensing (no formation of condensation
water at the unit surfaces). Details are available from the
manufacturer.
In-door operation only
Unpacking
Check for transport
damages
Workplace
DANGER
Ambient conditions

Before initial operation
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5.2 Connecting the unit to the mains
Ensure that the local connection details correspond to the data
indicated on the nameplate. See also Technical details (Section
4.6.)
Connect the unit to a grounded shockproof socket only.
The mains plug must be connected to an easily accessible
socket only, as it serves as interrupted device!
As the units do not have any main switch, they can be supplied
with power individually or in groups via a main switch.
The units must only be disconnected from the mains power
supply when they are in standby mode.
If peripheric units from third party providers have to be supplied
with power, this must be done using separate switching
devices.
Required mains
conditions
Connect mains cable
Mains power supply
via main switch

Putting unit into operation
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6 Putting unit into operation
6.1 Filling of the unit
Caution! For reasons of safety always pull the mains plug for
filling the cleaning liquid.
Shut the drain duct before you fill the tank.
Fill the cleaning tank with a sufficient quantity of a suitable
cleaning liquid before switch-on.
Observe the filling level marking inside the tank (see Fig.
4.8.1.F).
Fill the tank with aqueous cleaning media only:
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.
All flammable cleaning media are prohibited for use in an
ultrasonic bath. Please observe the safety warnings in
Section 8(Cleaning media).
Risk of fire and explosion!
Never use flammable liquids or solvents directly in an ultrasonic
cleaning bath.
Use the cleaning chemicals listed in Section 8.3.
Ultrasonic activity increases the vaporisation of liquids and
creates a very fine mist which can catch fire on any ignition
source.
Observe the instructions on limitations of use given in
Section 8.1.
Risk of damage to the ultrasonic 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.
Use the cleaning chemicals listed in Section 8.3.
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.
Observe the instructions on limitations of use given in
Section 8.2.
For queries please contact the manufacturer or your supplier.
Danger of damage to the transducer system!
Fill no liquid > 60°C and < 10°C in the ultrasonic tank.
Pull the mains plug
Shut the drain duct
Observe filling level
Allowed and
prohibited cleaning
agents
DANGER
ATTENTION
ATTENTION