Elma Operating Instructions

Operating Instructions
Elmasonic X-tra XL 1200 / 1600 / 2700
TECHSPAN
Ultrasonic Cleaning Units
TECHSPAN
Australia Ph- 1-800 148 791 E- [email protected]
New Zealand Ph- 0800 603 603 E- [email protected]
document ref. 104 9945
Contents
Contents
1
General....................................................................... 4
2
Important safety warnings .......................................... 4
2.1
2.2
3
Ultrasonic cleaning factors ......................................... 8
3.1
3.2
4
Functioning .............................................................. 8
Ultrasonic cleaning process ..................................... 9
Product description ................................................... 10
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
5
Instructions for the use of the present manual.......... 4
Safety instructions for the use of the unit ................. 6
Elmasonic X-tra-pro product features ......................10
CE conformity .........................................................11
RFI Statement (European Union) ............................11
Delivered equipment ...............................................11
Optional accessories...............................................12
Technical details .....................................................13
Description of unit features .....................................15
Description of unit connections ...............................16
Description of ultrasonic tank ..................................17
Description Elma cleaning basket (accessory) ........18
Description hinged cover (accessory) .....................19
Description of operating elements ...........................20
Description and functions of the display ..................22
Before initial operation .............................................. 25
5.1
Unpacking and placement.......................................25
5.2
Connecting the unit to the mains .............................26
5.3
Basic settings in the display ....................................26
5.3.1 Setting of display language ..................................26
5.3.2 Setting of date / time ............................................27
5.3.3 Setting of the temperature measuring unit
(°C / °F) ...............................................................27
5.3.4 Setting of display contrast ....................................28
6
Putting unit into operation ......................................... 29
6.1
6.2
6.3
6.4
6.5
6.6
2
Filling of the unit ......................................................29
Heating up of the cleaning liquid .............................30
Degassing of liquid in degas mode .........................31
Setting of ultrasonic frequency ................................32
Cleaning in ultrasonic mode sweep .........................32
Cleaning in ultrasonic mode pulse ..........................32
Contents
6.7
6.8
7
Setting of ultrasonic power ......................................33
Cleaning in ultrasonic phase control mode
(only on units with 2-side sound) .............................34
Ultrasonic cleaning process...................................... 37
7.1
7.2
Immediate start-up of ultrasonic cleaning process...38
Temperature-controlled ultrasonic cleaning with
automatic start-up of the cleaning process ..............39
7.3
Ultrasonic cleaning by user-defined cleaning
programs ................................................................40
7.4
Timer-controlled ultrasonic cleaning ........................41
7.4.1 Setting of the timer start-up configuration ............41
7.4.2 Setting of the timer stop configuration ..................43
7.5
Placement of the cleaning items .............................44
7.6
Use of the Elma cleaning basket (accessory)..........44
7.7
After the cleaning ....................................................46
8
Cleaning media ........................................................ 47
8.1
Limitations of use of cleaners containing solvents ...47
8.2
Limitations on aqueous cleaners .............................48
8.3
List of recommended cleaning media ......................49
8.3.1 Industry and workshop .........................................49
9
Maintenance ............................................................. 50
9.1
9.2
9.3
9.4
9.5
Maintenance and care ............................................50
Service life of the ultrasonic cleaner ........................51
Repair .....................................................................51
Malfunctions............................................................52
Replacing the electronic unit ...................................53
10
Putting out of action and waste disposal ............... 54
11
Manufacturer's contact address............................. 54
3
General
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 and
observe before initial
operation
Carefully read the present operating instructions and operate
the electric unit in compliance with the instructions only.
Exclusion of liability
2.1
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.
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 hearing damage due to high
sound pressure level noise emissions.
This symbol warns of the risk of contusion of hand or fingers.
This symbol warns of the risk of injury.
This symbol warns of the risk of damage to the equipment.
This symbol marks additional information.
4
Important safety warnings
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.
Mandatory signs on the ultrasonic cleaning unit and/or in
the present operating instructions
This mandatory sign serves as accident prevention measure
and recommends the use of an ear protection device.
This mandatory sign serves as accident prevention measure
and recommends the use of goggles.
This mandatory sign serves as accident prevention measure
and recommends the use of protective gloves.
5
Important safety warnings
2.2
Safety instructions for the use of the unit
Intended use
User
Operation of the unit by authorized and instructed staff only.
Observe the instructions given in the manual.
Check for damage
Check unit and mains cable for transport damages. Do not
operate the unit in case of visible damages!
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.
Placement
Prevention of
electrical accidents
Cleaning liquid
Hot surfaces and
liquids
Hot steam
Do not move filled
unit
Noise emission
Sound transmission
at physical contact
6
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.
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.
When the unit is operated at high temperatures open the unit
cover (optional accessory equipment) with care. Hot steam can
escape.
Do not move the filled unit. Risk of tilting over and risk of
damage to the unit. Move the unit only when it is empty. Use a
fork lift and ensure that the fork is placed under the carrying
trusses at the bottom of the unit.
Ultrasonic units can emit annoying noise.
Use a personal ear protection device when you keep within
close distance to an operating ultrasonic unit, in particular when
the unit is operating without cover at 25 kHz ultrasonic
frequency.
Do not reach inside the cleaning liquid or touch sound-carrying
parts (tank, basket, cleaning items, etc.) during operation.
Important safety warnings
Maximum load
cleaning basket
Adjustment of unit
feet
The maximum load that may be put into the cleaning basket is
100 kg.
Adjust the unit feet parallel to the overflow weir, fasten the
counter nuts to ensure the maximum carrying capacity.
7
Ultrasonic cleaning factors
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 piezoelectrical 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:
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 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.
Cleaning media
8
For saponification and removal of the dirt particles a suitable
cleaning agent is required. We have a large range of cleaning
media on offer.
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.
Phase control
Optionally available device for the control of the cavitation fields
(on units with 2-side sound). The device allows an additionally
optimized sound field distribution, stationary sound pressure
maxima and minima are prevented. Damage through cavitation
and “surface shadows” on particularly sensitive surfaces are
avoided. The surfaces are treated thoroughly and gently.
Ultrasonic cleaning factors
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 degas mode at
37 kHz or rather 45 kHz (Section 6.3).
4. Select the required ultrasonic frequency depending on the
cleaning task: low frequency for intensive cleaning or high
frequency for gentle cleaning (Section 6.4).
5. Activate the ultrasonic sweep mode – if required for the
intended cleaning application (Section 6.5).
6. Activate the ultrasonic pulse mode – if required for the
intended cleaning application (Section 6.6).
7. On units with 2-side sound:
switch on the ultrasonic mode phase if required for the
intended cleaning application (section 6.8.).
8. Switch on the ultrasound (manual or automatic start-up)
(Section 7.1 and Section 7.2).
9. Put the cleaning items into the cleaning bath (e.g. in the
basket) (Section 7.5).
10. Rinse if necessary (Section 7.6).
9
Product description
4
Product description
4.1
Elmasonic X-tra-pro product features

ultrasonic tank made of extremely cavitation-proof
stainless steel (V4A)

inclined tank floor to facilitate the draining of the cleaning
liquid

skimming ledge for the optional surface skimming, e.g.
of oil

bottom scouring of removed sediments (optional)

sandwich-type performance transducer systems

two ultrasonic frequencies, switchable in one unit 25 kHz
or 45 kHz, for either intensive or gentle cleaning

user-friendly operation by keys and display; 5 display
languages available

setting and starting of up to 5 user-defined cleaning
programmes

timer for the programming of day controlled or time
controlled cleaning start, and user-defined switch-off

activatable 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)

activatable degas mode for the efficient degassing of the
cleaning liquid and for spezial laboratory cleaning tasks

Phase control mode activatable (on units with 2-side
sound) for an optimized sound field distribution, in
particular for the cleaning of sensitive surfaces

manual setting of ultrasonic intensity

heating with temperature control (30°C – 80°C)

temperature-controlled ultrasonic operation: ultrasound
starts automatically as soon as the preset 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


10
Product description


4.2
level monitoring with integrated automatic safety switchoff in case of too low liquid level
housing made of V2A stainless steel

drain duct made of V2A stainless steel, mounted to the
unit rear

connection ducts for the optional connection of
peripheric equipment (e.g. filter-pump system, oil
separator)

connection to an external control system possible
(PLC / PC)
CE conformity
The present ultrasonic cleaning unit complies with the CE
marking criteria with regard to the EMC directive 2004/108/EG,
and to the low voltage directive 2006/95/EG.
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
11
Product description
4.5
Optional accessories
 Stainless-steel basket (operation with oscillation and lift)
 Removable stainless-steel cover
 Noise protection cover, hinged
 Unit available with oscillation (operation possible with closed
noise protection cover); retrofitting by the manufacturer only
 Oil separator
 Pump filter aggregate
 Transducers mounted to more than one tank wall (2-side
sound with optional phase control mode, or 3-side sound)
 Blowing station (compressed air)
 Showering device (hand shower)
 Ball valve extension (filling)
 Ball valve extension (drain)
 Protection screen for tank floor to retain cleaning items
12
Product description
4.6
Technical details
XL 1200
XL 1600
XL 2700
140
180
300
Tank service
dimensions W/D/H
(ca. mm)
520/450/445
720/400/515
720/600/545
Unit outer
dimensions W/D/H
(ca. mm)
940/1040/1050
1180/990/1050
1180/1170/1050
125
135
155
460/375/320
660/325/380
Basket loading
max. (ca. kg)
100
100
100
Ball valve drain
1“
1“
1 ¼“
Ball valve filling
1/2“
3/4“
3/4“
Emergency
overflow
1“
1 ¼“
1 ¼“
Overflow basin
1“
1“
1“
Surface skimming
½“
½“
½“
Bottom scouring
½“
½“
½“
Connection PFE
(suction side)
1“
1“
1 ¼“
3 x 400V/
N/PE
3 x 400V/
N/PE
3 x 400V/
N/PE
25 / 45
25 / 45
25 / 45
Tank service
capacity (ca. L)
Weight
(ca. kg)
Basket (accessory)
inner dimensions
W/D/H (ca. mm)
Mains voltage
(Vac)
Ultrasonic
frequency (kHz)
660/525/380
Power consumption total (W)
Bottom sound
7800
10700
13500
2-side sound
9000
12700
14500
3-side sound
8800
12700
14500
Bottom sound
2000
2000
3000
2-side sound
3200
4000
4000
3-side sound
3000
4000
4000
Ultrasonic power effective (W)
13
Product description
XL 1200
XL 1600
XL 2700
Ultrasonic peak power max*** (W)
Bottom sound
2-side sound
3-side sound
Heating power (W)
Sound pressure
level
8000
8000
12000
12800
16000
12000
16000
5800 W
8700 W
10500 W
93 / 72
93 / 80
91 / 79
80 / 67
84 / 72
84 / 72
107 / 105
107 / 107
107 / 105
16000
16000
25 / 45 kHz
(LpAU) ** dB
Sound pressure
level
25 / 45 kHz
(LpAU) *** dB
Ultrasound level
25 / 45 kHz
(LpZ) *** dB
* The signal form of the waves results in a factor 4 for the ultrasonic peak maximum
** Max. sound pressure level measured in 1 m distance, without basket and noise protection cover
*** Sound pressure level measured in 1 m distance, with basket and noise protection cover
14
Product description
4.7
Description of unit features
E
A
B
D
C
Fig. 4.7 Unit front view
A
Operating panel controls the unit functions;
description see Section 4.12.
B
Electronic unit with performance electronics, easy to
exchange for service or repair purposes
C
Unit feet height adjustable
D
Ball valve extension for the control of the filling ball valve
(optional)
E
Noise protection cover hinged flip-top cover (optional)
15
Product description
4.8
Description of unit connections
L
A
B
K
J
I
D
C
H
E
F
G
Fig. 4.8. Connections on unit rear
16
A
Feed duct surface skimming
B
Cable feedthrough oscillation
C
2-way ball valve tank drain
D
H
Pump filter unit connection, suction side
E
Mains supply
F
Interface SPC
G
Interface SPC
H
Feedthrough hand shower
I
Drain bottom scouring
J
Connection 2-way ball valve filling (optional)
K
Drain of overflow basin e.g. to optional connection to pure
water unit, oil separator or cascade
H
Emergency overflow
Product description
4.9
Description of ultrasonic tank
B
A
C
B
D
E
F
F
G
F
Fig. 4.9. Ultrasonic tank
A
Ultrasonic tank made of cavitation-proof stainless steel.
The tank floor is inclined towards the drain duct. The transducer
elements are mounted underneath the tank floor. Depending on
the model, transducer elements are also mounted to the tank
sides (on units with 2-side sound or 3-side sound)
B
Support brackets for Elma cleaning basket 4x
C
Level switch for liquid, switches the unit off when the level of
the liquid falls below the minimum filling level
D
Heating elements
E
F
Protecting bars for heating elements
Overflow basin takes oils etc. skimmed off the surface,
connection to optional peripheric units possible (e.g. filter pump
system, oil separator); the upper edge of the overflow weir also
marks the optimum filling level for operation
17
Product description
4.10
Description Elma cleaning basket (accessory)
C
D
E
A
B
Total load
max. 100 kg
Fig. 4.10 Cleaning basket
A
Cleaning basket stainless-steel mesh (observe max. loading!)
B
Basket support device detail
C
Eye for lift detail
For further information see Section 7.6.
18
Product description
4.11
Description hinged cover (accessory)
C
B
A
D
Fig. 4.11 Noise protection cover (hinged)
A
Noise protection cover (hinged)
B
Sealing
C
Handle
D
Hinge
Safety instructions on the use and operation of the noise
protection cover
Risk of scalding with open unit cover!
CAUTION
When the unit is operated at high temperatures hot steam can
escape when the unit cover is opened. Condensation water can
drip off.
Open the cover with care and step back from the unit.
19
Product description
Risk of hand injury when mounting or adjusting the hinges of
the noise protection cover.
CAUTION
The hinges are subject to a high pretension.
The hinges must be adjusted or removed by instructed
authorized personnel only.
Risk of injury caused by opening and closing of the sound
protection cover.
CAUTION
The sound protection cover opens and closes self-activatedly in
the final opening / closing stage.
Hold the handle until the final position is reached.
4.12
Description of operating elements
C
A
B
E
G
F
D
L
H
I
J
K
M
Fig. 4.10 operating panel
20
A
Key on/off switches the unit on and off.
The LED in the key is lighted red (stand by) when the unit is
connected to the mains and switched on by the main switch
(M).
As soon as the key is activated the operating panel is ready for
operation and the LED in the key lights up green.
B
Key heating for switching on the heating control. The LED in
the key turns green as soon as the heating is switched on.
C
Key temperature preselection temperature can be set by 5°C
steps between 30° and 80°C. The actual setting is indicated in
the display (set).
D
Navigation keys, keys for navigation in the display, description
see Section 4.13.
E
Display showing the unit settings.
Product description
F
Key setting of ultrasonic intensity by 10% steps. The actual
setting is indicated in the display.
G
Key frequency for the selection of the ultrasonic frequency.
The lower frequency is for intensive cleaning tasks; the high
frequency is for gentle cleaning tasks (see also Section 6.4).
The actual setting is indicated in the display.
H
Key ultrasonic mode degas for the degassing of fresh
cleaning liquid. The LED in the key turns green as soon as this
mode is activated. The degas mode cannot be operated
simultaneously with the sweep or pulse modes.
I
Key ultrasonic mode sweep, for the continued shifting of the
sound field maxima, guarantees a more homogeneous sound
field distribution within the cleaning bath. The LED in the key
turns green as soon as this mode is activated. The sweep mode
cannot be operated simultaneously with the degas or pulse
modes.
J
Key ultrasonic mode pulse for an increased power for difficult
cleaning tasks. The LED in the key turns green as soon as this
mode is activated. The pulse mode cannot be operated
simultaneously with the degas or sweep modes.
K
Key ultrasound to switch on the ultrasonic operation. The LED
in the key turns green as soon as the ultrasound is started
(permanent green light for manual start-up, blinking green light
for temperature-controlled start-up). Description see Section 7.1
and Section 7.2.
L
Key time for the setting of the cleaning time Possible
settings for short-term operation: 1, 2, 3;…10; 15, 20, 25…60;
70, 80,90…120 min (automatic switch-off).
Permanent operation ∞ for continued ultrasonic activity. Here,
the unit must be switched off by hand.
For reasons of safety, the unit is automatically switched off after
a permanent operation of 12 hours.
M
Main switch 0 – 1 switches the unit on and off; can be secured
against unintended switching by means of a padlock (e.g.
during repair and maintenance works)
21
Product description
4.13
Description and functions of the display
Standard display
during operation
The display is divided into 4 sections. During operation of the
unit, up to 5 parameters are indicated, which can be set by the
relevant operating keys.
The 4 navigation keys and the keys temperature, heating,
frequency or power control the displayed parameters:
The main menu is opened by pressing any navigation key. By
pressing the keys temperature, heating, frequency and power
the respective display section is shown in full screen (context
menu). 4 seconds after the last key setting the display
automatically returns to the standard display.
A
B
C
D
Fig. 4.11.1 Standard display
A
Cleaning time: set time (upper value); remaining time (lower
value); ∞ indicates continued operation.
B
Ultrasonic frequency (upper value); ultrasonic mode sweep,
degas, pulse, phase (lower indication). The mode is indicated
only when activated.
C
Set temperature (upper value); actual temperature (lower value)
D
Ultrasonic power in %
How to start the main
menu
To start the main menu press one of the navigation keys below
the display (see Fig. 4.12.D).
The following display appears:
E
Fig. 4.11.2
F
22
G
H
I
Product description
E
The main menu shows 3 functions (submenus) to select from.
The activatable function is marked black.
Load program: starts one of the user-defined programs. Up to
5 cleaning programs can be set and started (see also Section
7.3).
Save program: sets and saves a new cleaning program (see
also Section 7.3).
Settings: change the following parameters: date/time – timer –
display contrast – temperature unit – language – service (only
for service points) – phase control (optional).
How to navigate in
the main menu
To navigate in the main menu press the required navigation key
below the display sections F – I.
F
Escape: By pressing the navigation key below this display
section you return to the previous operation level.
G
Up: By pressing the navigation key below this display section
you increase the value of the respective parameter; you also
navigate within the present menu.
H
Down: By pressing the navigation key below this display
section you reduce the value of the respective parameter; you
also navigate within the present menu.
I
How to enter a
submenu
Enter: By pressing the navigation key below this display section
you acknowledge the respective setting.
Use the navigation keys below the arrows in the display
(Section 4.13.2.G/H) to select the required option (marked
black) and start the selected submenu by pressing the
navigation key below the display section Enter (Fig. 4.13.2.I).
The available submenus are listed in the display (Fig. 4.13.3)
dargestellt.
30 seconds after the last setting in the main menu the display
automatically returns to standard display.
23
Menu structure
Product description
Abb. 4.11.3 Menu structure of control panel
24
Before initial operation
5
Before initial operation
5.1
Unpacking and placement
Unpacking
Check for transport
damages
Workplace
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.
Adjust the unit feet parallel to the overflow weir, fasten counter
nuts!
Ensure that the workplace is sufficiently ventilated!
Risk of electrocution due to humidity inside the unit!
Protect the unit from entering humidity.
DANGER
The unit inside is splash-proof.
Keep workplace and casing dry in order to prevent electrical
accidents and damages on the unit.
Ambient conditions
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

25
Before initial operation
5.2
Connecting the unit to the mains
Required mains
conditions
Ensure that the local connection details correspond to the data
indicated on the nameplate! See also Technical details (Section
4.6.)
Connect mains cable
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!
5.3
Basic settings in the display
Set the following basic parameters in the display. Repeat the
procedure for later adjustments. The required basic settings are
done in the menu settings.
How to proceed
1. Switch on the unit (on/off): The display shows the standard
display (Abb. 4.13.1).
2. Start the main menu in the display by pressing one of the
navigation keys below the display (Fig. 4.12.D). The display
now shows the main menu (Fig. 4.13.2).
3. Use the navigation keys below the arrows in the display
(Fig. 4.13.2.G/H) to select the submenu settings and press
Enter (Abb. 4.13.2.I).
The display now shows settings.
5.3.1
Setting of display language
There are 5 display languages available to select from: German
– English – French – Spanish – Italian. To change the display
language proceed as follows:
How to proceed
1. Carry out steps 1 - 3 described in Section 5.3.
2. Use the navigation keys to select the menu task language
and acknowledge with Enter.
3. Use the navigation keys to select the requested language
and acknowledge with Enter.
Fig. 5.3.1 Language menu
4. Use the navigation key ESC to leave this menu.
26
Before initial operation
5.3.2
Setting of date / time
Once the date has been set, it will be automatically adjusted.
Observe the local time for setting the time.
How to proceed
1. Carry out steps 1 - 3 described in Section 5.3.
2. Use the navigation keys to select the menu task date / time
and acknowledge with Enter.
3. The first activated input box is the box for the year. Change
the year by means of the +/- keys if required and
acknowledge with Enter. This automatically activates the
input box month.
4. Enter the data for month and time likewise.
5. Use the navigation key ESC to leave this menu.
If you have entered wrong data, press ESC to leave the menu
and start the setting again.
Fig. 5.3.2 Menu for setting date / time (example)
5.3.3
Setting of the temperature measuring unit (°C / °F)
The display can indicate the temperature either in degrees
Celsius (°C) or Fahrenheit (°F).
How to proceed
1. Carry out steps 1 - 3 described in Section 5.3.
2. Use the navigation keys to select the menu task
temperature unit and acknowledge with Enter.
3. Use the +/- keys to select the requested measuring unit and
acknoledge with Enter.
4. Use the navigation key ESC to leave this menu.
Fig. 5.3.3 Menu for setting temperature measuring unit
27
Before initial operation
5.3.4
Setting of display contrast
Depending on the ambient lighting conditions it may be required
to change the display contrast.
1. Carry out steps 1 - 3 described in Section 5.3.
2. Use the navigation keys to select the menu task display
contrast and acknowledge with Enter.
3. Use the +/- keys to change the contrast and acknowledge
with Enter.
4. Use the navigation key below ESC to leave this menu.
Fig. 5.3.4 Display contrast menu (example)
28
Putting unit into operation
6
Putting unit into operation
6.1
Filling of the unit
Pull the mains plug
Caution! For reasons of safety always pull the mains plug for
filling the cleaning liquid.
Shut the drain duct
Observe filling level
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.
The recommended filling level is indicated by the upper edge of
the overflow weir (sehe fig. 4.9.F.). The emergency overflow
(fig. 4.9.G.) must be kept clear – do not close the opening.
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).
Allowed cleaning
agents
Prohibited cleaning
agents
Risk of fire and explosion!
DANGER
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.
ATTENTION
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!
ATTENTION Fill no liquid > 60°C and < 10°C in the ultrasonic tank.
29
Putting unit into operation
6.2
Heating up of the cleaning liquid
Heat up the cleaning liquid depending on the kind and degree
of contamination of the cleaning items to assist the cleaning
effect. We recommend that you use one of the Elma unit covers
(accessory) to accelerate heating up and to avoid energy
losses.
You may also switch on the ultrasound to further speed up the
heating process.
The ultrasonic energy is transformed physically into heat.
Therefore, low preset temperatures may be exceeded during
ultrasonic operation.
In order to avoid unintended heating over the required
temperature due to the additional ultrasonic energy, set the
temperature at the lowest possible value for the cleaning task at
hand.
High temperatures! Risk of burning and scalding!
CAUTION
Cleaning liquid, ultrasonic tank, housing, cover, basket and
cleaning items may heat up considerably depending on the
temperature inside the bath.
Do not reach inside the bath!
Wear protective gloves to handle the unit and basket!
How to proceed
1. Press the key on/off (Fig. 4.12.A), the green LED in the key
is lighted.
2. Use the +/- keys (Fig. 4.12.C) to set the required cleaning
temperature (set value). The display shows the set
temperature as numbers (Fig. 6.2.A) and in addition by
a small black arrow at the mercury column symbol
(Fig. 6.2.C). The actual temperature is also indicated as
numbers (Fig. 6.2.B) and by a small black symbolized
mercury bar (Fig. 6.2.D).
3. Press the key heating (Fig. 4.12.B), the green LED in the
key is lighted.
4. The unit starts heating immediately.
5. As soon as the set temperature is reached the heating
automatically switches off.
A
B
Fig. 6.2 Display temperature setting (example)
30
C
D
Putting unit into operation
The ultrasonic energy can heat up the cleaning liquid over the
set temperature. Particularly low set temperatures (e.g. 30°C or
40°C) can easily be exceeded.
6.3
Degassing of liquid in degas mode
Freshly mixed cleaning liquids are saturated with air which
reduces the cleaning effect of the ultrasonic activity. Operating
the ultrasound over a period of several minutes before the
cleaning process will eliminate the tiny air bubbles in the liquid.
How to proceed
1. Activate the ultrasound at the key ultrasound (Fig. 4.12.K).
The green LED in the key is lighted.
2. Press the key degas (Fig. 4.12.H). The green LED in the
key goes on. The display indicates the degas mode
(Fig. 6.3.A).
3. Use the selector key frequency (Fig. 4.12.G) to select 45
kHz. The display now indicates the selected frequency (Fig.
6.3.B).
4. Press the key ultrasound to start the ultrasonic activity.
A
B
Fig 6.3 Display ultrasonic operating mode and frequency (example)
After approx. 5 to 10 minutes the cleaning liquid is degassed.
Switch off the ultrasound.
You can carry out the degassing during the heating process.
31
Putting unit into operation
6.4
Setting of ultrasonic frequency
The present unit can be operated at 2 different ultrasonic
frequencies.
The following frequencies are available:
25 kHz
For the removal of coarse and tenacious contaminations, and
for the precleaning of robust surfaces.
45 kHz
For the fine cleaning, and for the removal of contaminations
from sensitive surfaces.
How to set the
ultrasonic frequency
Press + or – at the key frequency (Fig. 4.12.G). The display
shows the set frequency (Fig. 4.13.1.B).
6.5
Cleaning in ultrasonic mode sweep
The sweep mode causes a permanent shifting of the sound
pressure maxima and therefore leads to a more homogeneous
sound field distribution within the cleaning bath.
We recommend to activate this mode e.g. if the cleaning items
fill the complete tank and/or if the cleaning basket carrying the
cleaning items is not connected to a manual or automatic
oscillation device.
How to switch on
sweep
Press both the key ultrasound and the key sweep (Fig. 4.12.I).
The green LED in the key indicates that the unit is operating in
sweep mode.
The display indicates sweep mode.
The sweep mode cannot be activated simultaneously with
degas or sweep.
6.6
Cleaning in ultrasonic mode pulse
pulse is a special feature which intensifies the ultrasonic
cleaning effect. This is particularly useful for the removal of
tenacious contaminations.
In addition, it takes less time for the unit to be ready for
operation after an exchange of the cleaning liquid or when a
new basket has been inserted (the unit is ready for operation
when the cavitation threshold is reached so that the ultrasonic
effect within the cleaning liquid is greatest). This shortens the
overall cleaning period.
There are certain operating phases with a reduced ultrasonic
cleaning effect due to physical reasons.
In particular when the cleaning liquid has been exchanged or
when a new basket with cleaning items has been inserted the
cleaning effect is temporarily reduced. An efficient ultrasonic
cleaning cannot be guaranteed during these phases.
32
Putting unit into operation
The pulse mode keeps these phases to a minimum, which
leads to an optimum usability even with high throughput rates.
How to activate the
pulse mode
Press both keys ultrasound and pulse (Fig. 4.12.J). The green
LED in the key indicates the operation in pulse mode. pulse can
be switched on or off as required during operation.
The display indicates pulse mode.
The pulse mode cannot be activated simultaneously with degas
or sweep.
NOTE
Cleaning items with sensitive surfaces may be adversely
affected by a combination of pulse and 25 kHz. Please treat
sensitive items at 25 kHz plus pulse for short periods only.
Also, the sound-giving surface of the cleaning tank is subject to
a higher degree of cavitational erosion.
6.7
Setting of ultrasonic power
For the cleaning of sensitive surfaces we recommend to reduce
the ultrasonic power. You can adjust the ultrasonic power by
10% steps.
How to change the
ultrasonic power
Press + or – at the key power (Fig. 4.12.F).
The display shows the set ultrasonic power (Fig. 4.13.1.B).
Fig. 6.7 Display ultrasonic power (example)
33
Putting unit into operation
6.8
Cleaning in ultrasonic phase control mode
(only on units with 2-side sound)
Advantages
Operating principle
The phase control mode provides an improved sound field
distribution and prevents the forming of stationary sound
pressure maxima and dead zones / ultrasonic shadow zones in
the cleaning liquid. This helps to obtain uniform cleaning results
and to protects cleaning items with sensitive surfaces against
damage caused by cavitation.
On a model with 2-side sound the ultrasonic transducers are
mounted opposite to each other to the two long sides of the
ultrasonic tank. The sound field created between the two
sound-giving walls moves horizontally through the tank. The
speed per cycle through the tank can be adjusted between 60
sec and 180 sec /360°.
Simply put, the effect of controlled cavitation fields can be
compared to the rotating cleaning brushes in a car wash.
Intensive ultrasonic zones, generated in rapid succession, are
continuously shifted through the cleaning liquid and thus across
the surfaces of the cleaning items. The sound field moves from
the front of the tank towards the back.
How to proceed
Position the cleaning items, e.g. sensitive wafers, displays,
optical lenses, etc., standing vertically and perpendicular to the
long tank sides (sound-giving surfaces).
1.
Carry out steps 1-3 described in Section 5.3.
2.
Use the navigation keys to select the menu item phase
shift speed and acknowledge with Enter (fig. 6.8.1.).
Fig. 6.8.1. Menu settings
34
Putting unit into operation
3.
The phase shift speed display appears (fig. 6.8.2.).
Use the keys “+” and “-“ to select the speed per cycle
between 60 sec. and 180 sec. / 360° and acknowledge
with Enter.
Fig. 6.8.2 Phase shift speed contect menu
4.
The menu settings reappears. Use the navigation keys
to select the menu item phase control and acknowledge
with Enter (fig. 6.8.3.)
Fig. 6.8.3. Menu settings
5.
The phase control display appears (fig. 6.8.4.).
In the context menu phase control select the item
Status: activated and acknowledge with Enter.
Fig. 6.8.4. Phase control context menu
6.
Now the standard display appears.
The phase control mode is now set as standard mode.
In order to go back to the normal ultrasonic operating mode
select the menu item Status: deactivated in the phase control
context menu (fig. 6.8.4.).
35
Putting unit into operation
There are two ultrasonic modes available: normal mode and
phase control mode. Each of the two modes can be set as
standard operating mode.
If one of the keys degas, sweep or pulse is pressed during
phase control operation, the phase control mode is deactivated
until the degas, sweep or pulse mode is stopped.
36
Ultrasonic cleaning process
7
Ultrasonic cleaning process
There are several ways to start the cleaning process (see
Section 7.1 – 7.3.)
Please observe the following instructions before starting the
ultrasonic cleaning process.
Risk of scalding by hot surfaces and cleaning liquid!
CAUTION
Ultrasonic energy is physically transformed into heat.
The unit and the cleaning liquid in the tank heat up during
ultrasonic operation even with the heating switched off.
During permanent operation with cover temperatures exceeding
60°C can be reached.
During permanent operation with cover and heating
temperatures exceeding 80°C can be reached.
Do not reach inside the bath.
If necessary touch unit and basket with protecting gloves!
Ultrasonic units can produce annoying sounds.
CAUTION
Wear personal ear protection devices when working close to an
ultrasonic unit which is operated without cover.
Use a personal ear protection device when you work on or
close to an operating ultrasonic unit.
CAUTION
ATTENTION
Sensitive surfaces may be adversely affected by ultrasound
during prolonged periods of ultrasonic treatment, in particular at
lower ultrasonic frequencies.
Ensure that sensitive surfaces are exposed to ultrasonic activity
for a suitable period only.
If in doubt check the cleaning progress regularly and observe
the state of the surface material.
Ultrasonic energy is physically transformed into heat.
ATTENTION
The unit and the cleaning medium in the tank heat up during
ultrasonic operation even with the heating switched off.
During permanent operation with cover temperatures exceeding
60°C can be reached.
For the cleaning of temperature-sensitive items please take into
consideration the heating-up of the cleaning medium.
37
Ultrasonic cleaning process
CAUTION
Do not reach into the cleaning liquid during ultrasonic operation.
Risk of damage to cell walls, in particular of cells of the skeleton
and the joints.
The operator is responsible for the inspection of the
cleaning result and for the continuous inspection of the
cleaning items during ultrasonic treatment to prevent
damages from the cleaning items.
7.1
Immediate start-up of ultrasonic cleaning process
Set the cleaning
period
Set the required cleaning time by means of the key „+“
(Fig.4.12.F).
Fig. 7.1.1 Display cleaning time (example)
Short period
operation
For short period operation set the cleaning period between 1
and 120 min (Fig.4.12.L).
The display indicates the set cleaning time in minutes : seconds
(see Fig. 7.1.2.A). Once the unit is operating the remaining
cleaning time is indicated in minutes : seconds (see
Fig. 7.1.2.B).
A
B
Fig. 7.1.2 Standard display (example)
As soon as the preset period has run down the ultrasound is
automatically switched off.
Continued operation
For longer periods of ultrasonic treatment select the continued
operation mode (∞).
The display shows ∞.
38
Ultrasonic cleaning process
In this operating mode there is no automatic switch-off.
The ultrasound must be switched off by the operator by
pressing the key ultrasound (Fig. 4.12.K).
How to start the
ultrasound
Start the ultrasonic activity by pressing the key ultrasound
(Fig. 4.12.K).
For reasons of safety (unintended permanent operation), the
unit is automatically switched off after 12h of permanent
operation. The unit can be switched back on immediately.
During continued operation the ultrasound may heat up the
medium to temperatures exceeding the set value even when
CAUTION
the heating is not switched on.
In order to prevent unnecessary heating of the cleaning medium
by ultrasound, particularly with low preset temperatures, switch
on the ultrasound during the cleaning process only (exceptions
are degassing and stirring of the cleaning bath during heating
up).
7.2
Temperature-controlled ultrasonic cleaning
with automatic start-up of the cleaning process
Functioning
Elmasonic XL units are equipped with an additional
temperature-controlled cleaning function. The cleaning process
is automatically started as soon as the required bath
temperature is reached.
How to proceed
1. Press the key on/off (Fig. 4.12.A), the green LED in the key
goes on.
2. Set the required cleaning temperature by pressing the keys
+/- (Fig. 4.12.C).
3. Press the key heating (Fig. 4.12.B), the green LED in the
key goes on.
4. Set the required cleaning period by pressing the keys +/(Fig. 4.12.L).
5. Press the key ultrasound and keep it pressed (> 2 sec.):
The unit starts heating.
The display indicates the set time as blinking value (not during
permanent operation). The green LED in the key ultrasound is
flashing.
As soon as the set temperature is reached the ultrasound is
switched on and keeps operating over the preset cleaning
period.
39
Ultrasonic cleaning process
7.3
Ultrasonic cleaning by user-defined cleaning
programs
You can save and start up to 5 user-defined cleaning programs.
The programs are saved and activated from the main menu.
Saving a new program stores the cleaning parameters that are
presently set in the operating panel.
How to save a
cleaning program
1. Select the requested cleaning parameters (frequency,
cleaning time, etc.) that you want to save.
2. Press any one of the navigation keys below the display
(Fig. 4.12.D) to open the main menu. The display shows the
main menu (Fig. 4.13.2).
3. Use the navigation keys below the arrows in the display
(Fig. 4.13.2.G/H) to select the menu task save program and
acknowledge with Enter (Fig. 4.13.2.I).
The display now shows save program.
4. Use the navigation keys to select the requested program
space (1 - 5).
5. Press Enter to save the program.
6. The display now shows program has been saved.
How to start a saved
cleaning program
Saved user-defined cleaning programs can be started as
follows:
1. Press any one of the navigation keys below the display
(Fig. 4.12.D) to open the main menu. The display shows the
main menu (Fig. 4.13.2).
2. Use the navigation keys below the arrows in the display
(Fig. 4.13.2.G/H) to select the menu task load program and
acknowledge with Enter (Fig. 4.13.2.I).
The display now shows load program.
3. Use the navigation keys to select the requested program
(1-5).
4. Press Enter to select the program.
5. The display shows the stored parameters.
6. Press the key ultrasound (Fig. 4.12.K) to start the program.
How to rewrite saved
cleaning programs
Saved programs can be replaced (rewritten) by new programs
as often as required.
1. Select the requested cleaning parameters (e.g. frequency,
cleaning time, etc.) that you want to save.
2. Proceed as described above in the section How to save a
cleaning program.
40
Ultrasonic cleaning process
7.4
Timer-controlled ultrasonic cleaning
You can define times and dates for the start-up and/or
termination of cleaning processes.
Before you set the timer, ensure that date and time are correctly
set in the menu settings > date / time, as these values serve as
reference data. If they are incorrect, set the correct date and
time first (see Section 5.3.2).
If the set termination time is more than 12 h after the start-up
time, the unit is automatically switched off after 12 hours of
permanent operation (safety switch-off).
7.4.1
Setting of the timer start-up configuration
Set the requested parameters in the menu settings > timer.
How to proceed
1. Use the navigation keys below the arrows in the display
(Fig. 4.13.2.G/H) to select the menu task settings and
acknowledge with Enter (Fig. 4.13.2.I).
The display shows settings.
2. Use the navigation keys to select the menu task timer and
acknowledge with Enter.
3. Use the navigation keys to select timer ON and
acknowledge with Enter.
Fig. 7.4.1.1 Timer menu
41
Ultrasonic cleaning process
How to set the mode
OFF
Set the operating mode in which you want the unit to start. The
following options are available:
The start configuration is disabled.
one time
The start configuration is carried out one time as soon as the
set time is reached; then it is set to „OFF“.
Mon-Fri
The start configuration is carried out from Monday to Friday.
daily
The start configuration is carried out every day.
4. Use the navigation keys to select mode and acknowledge
with Enter.
The selector automatically moves to function.
Fig. 7.4.1.2 Start configuration menu (example)
How to set the
function
heating
heat + ultrasound
ultrasound
Now select the function(s) that you want to start.
Only the heating is switched on.
Heating and ultrasound are switched on.
Only the ultrasound is switched on.
5. Use the navigation keys to select function and acknowledge
with Enter.
The selector automatically moves to time.
How to set the time
Now set the start time:
6. Use the navigation keys to select the start hour and
acknowledge with Enter.
7. Use the navigation keys to select the start minute and
acknowledge with Enter.
The selector automatically moves back into the menu timer.
Continue by setting the stop configuration (from step 3 in
Section 7.4.2).
or
8. Use the navigation key below ESC to leave the menu.
42
Ultrasonic cleaning process
7.4.2
Setting of the timer stop configuration
Set the requested parameters in the menu settings > timer.
How to proceed
1. Use the navigation keys below the arrows in the display
(Fig. 4.13.2.G/H) to select the menu task settings and
acknowledge with Enter (Fig. 4.13.2.I).
The display shows settings .
The display shows settings.
2. Use the navigation keys to select the menu task timer and
acknowledge with Enter.
3. Use the navigation keys to select timer OFF and
acknowledge with Enter.
How to set the mode
OFF
Select when you want the unit to switch off. The following
options are available:
The stop configuration is disabled.
one time
The stop configuration is carried out one time as soon as the
set time is reached; then it is set to „OFF“.
Mon-Fri
The stop configuration is carried out from Monday to Friday.
daily
The stop configuration is carried out every day.
4. Use the navigation keys to select mode and acknowledge
with Enter.
The selector automatically moves to function .
How to set the
function
How to set the time
The function for the stop configuration is always „device off“.
5. Acknowledge the selection with Enter.
Set the switch-off time.
6. Use the navigation keys to select the switch-off hour and
acknowledge with Enter.
7. Use the navigation keys to select the switch-off minute and
acknowledge with Enter.
The selector automatically moves back into the menu timer.
8. Use the navigation key below ESC to leave the menu.
43
Ultrasonic cleaning process
7.5
Placement of the cleaning items
ATTENTION
The ultrasonic unit has been designed for the ultrasonic
treatment of liquids and items immersed in the liquid. Do not
treat any living beings or plants in an ultrasonic unit.
Risk of damage to the unit and/or to the cleaning items.
ATTENTION
Do not place any items directly onto the floor of the ultrasonic
tank.
Use the Elma cleaning basket (accessory) or the protection
screen or a lifting device.
Elma cleaning basket
Place the cleaning items into the stainless-steel cleaning basket
(accessory).
Observe the operating and safety instructions on the use of the
cleaning basket (Section 7.6.). See also the description of the
Elma cleaning basket (Section 4.10.).
Protection screen
Lifting device
7.6
You can also place the cleaning items onto the special tank
floor protection screen (accessory).
Heavy-weight items can be suspended into the cleaning liquid
by means of a lifting device.
Use of the Elma cleaning basket (accessory)
The Elma cleaning basket is equipped with support devices
(eyes) to facilitate the handling of heavy-weight cleaning items.
Place the Elma cleaning basket onto the 4 support brackets.
Safety instructions on the handling of the Elma cleaning
basket
Risk of injury caused by falling goods.
WARNING
Carefully check and ensure that the screw connections of the
support eyes to the lifting device are correctly fastened.
Operation of the lifting device must be carried out by instructed
specialized personnel only.
Observe any safety regulations that may apply.
Risk of contusion and injury to hands or fingers when fastening
the loaded cleaning basket into the unit.
CAUTION
Handle the loaded cleaning basket with care and keep your
hands outside the danger zone.
Wear protective gloves.
44
Ultrasonic cleaning process
Observe the valid health and safety regulations for the handling
of heavy-weight loads by persons.
CAUTION
Cleaning basket and cleaning items can heat up considerably
during ultrasonic operation.
CAUTION
If required wear protective gloves to handle basket and/or
cleaning items.
H
F
4x I
F
Fig. 7.6 Elma cleaning basket placed onto the support brackets
H
Elma cleaning basket (fig. 7.6.H.) placed onto the 4 basket
support brackets (fig. 7.6.I.)
45
Ultrasonic cleaning process
7.7
After the cleaning
Follow-up treatment
of cleaning items
Drain the unit
Cleaning of the
ultrasonic tank
46
Generally, the cleaned items must be rinsed and dried when the
cleaning process is finished.
The choice of the rinsing medium or media depends on the type
of cleaning medium that used and on the cleanness
requirements for the cleaned items. In certain cases it may be
recommended to rinse the items in an ultrasonic bath.
When the cleaning liquid is contaminated to such a degree that
it will no longer produce satisfying cleaning results, or when the
unit is not operated over a prolonged period of time (certain
residues and contaminations may damage the stainless-steel
tank) drain the tank.
Use the quick-drain duct to drain the cleaning tank.
The bottom of the ultrasonic tank is inclined towards the drain
duct to facilitate draining.
For instructions on the cleaning of the ultrasonic tank after
draining please see Section 9.1, Maintenance and care.
Cleaning media
8
Cleaning media
When selecting the cleaning medium please ensure that the
selected medium is suitable for use in an ultrasonic cleaning
bath; unsuitable media may cause damage to the ultrasonic
tank, or may even lead to injuries to the operating staff.
8.1
Limitations of use of cleaners containing
solvents
Never use flammable liquids or solvents directly in an ultrasonic
cleaning tank. Risk of fire and explosion!
DANGER
Observe the safety warnings in Section 6.1.
Ultrasound increases the volume of vaporisation of liquids and
creates a very fine mist that can catch fire on any ignition
source at any time.
Do not fill potentially explosive substances and flammable
solvents

marked in compliance with the EEC directives by symbols
and safety warnings R 1 to R 9

or E, F+, F, O or R 10, R 11 or R 12 for flammable
substances
into the stainless steel tank for ultrasonic treatment.
Exception
In compliance with the general regulations on the protection of
labour, certain limited volumes of flammable liquids (max. 1
litre) can be used in an ultrasonic cleaning unit under the
following conditions: these liquids must be filled into a suitable
separate vessel (e.g. beaker) with sufficient ventilation; this
vessel (beaker) can then be put into the stainless steel tank
which is filled with non-flammable liquid (water with a few drops
of surfactant).
If in doubt and for any queries please contact the manufacturer
or your supplier.
47
Cleaning media
8.2
Limitations on aqueous cleaners
Acids
Alkaline solutions
KOH
Entrainment of
chemical substances
Disinfectants
Acid-resistant tank
Safety regulations
Exclusion of liability
48
Do not use aqueous cleaning media with pH values in the acid
range (pH < 7) directly in the ultrasonic tank if fluoride (Fˉ),
chloride (Clˉ) or bromide (Brˉ) ions can be taken in by the
removed dirt or through the cleaning chemical. These can
destroy the stainless-steel tank by crevice corrosion within a
very short period of ultrasonic operation.
Other media which can destroy the stainless-steel tanks when
used in high concentrations or with high temperatures during
ultrasonic operation are: nitric acid, sulphuric acid, formic acid,
hydrofluoric acid (even diluted). (Completeness of list not
guaranteed.)
Examples:
 Treatment with hydrochloric acid or hydrofluoric acid, or acid
solution salts
 Removal of fluxing agents containing fluoride, chloride or
tetrafluoroborate from soldered metal parts or electronic
components
 Decalcification, in a solution containing citric acid, of
medical systems which are contaminated by physiological
saline
Risk of damage to the unit: do not use cleaning solutions
containing more than 0.5 mass % alkali (KOH and/or NaOH) in
an ultrasonic cleaning tank.
Potassium hydroxide solution will cause stress cracks in the
ultrasonic tank.
The above limitations for the use of chemicals in an ultrasonic
bath also apply for the aforementioned chemicals when these
are brought into an aqueous (particularly distilled water) bath
through entrainment or from the removed dirt.
Examples:
 Ultrasound-aided rinsing of items which have been etched
by hydrofluoric acid or ammoniumbifluoride.
The limitations of use also apply to the standard cleaners and
disinfectants if these contain the above mentioned compounds.
For the ultrasonic treatment with the above mentioned media
use an acid-resistant tank.
Please contact your supplier for available accessory equipment.
Observe the safety warnings indicated by the manufacturer of
the chemicals (e.g. goggles, gloves, R and S phrases).
For queries please contact the manufacturer or your supplier.
No liability can be accepted for any damage caused by nonobservance of the instructions and limitations stated in
Sections 8.1 and 8.2!
Cleaning media
8.3
List of recommended cleaning media
Elma has a large range of suitable cleaning products on offer
developed by chemical engineers in the Elma laboratory.
Please contact your supplier to find the most suitable cleaning
chemical for your application.
Environment –
friendly products
8.3.1
The organic detergents contained in the elma clean cleaning
concentrates are biodegradable. Product informations and
safety data sheets are available from the manufacturer.
Industry and workshop
elma tec clean A1
Cleaning concentrate (alkaline)for electronics and fine optics:
removes light oils, grease, fluxing agents, dust, finger prints,
etc.
elma tec clean A2
Intensive cleaner (ammoniacal) with brightening effect for
nonferrous and precious metals: removes grinding, polishing
and lapping media, grease, oil, etc.
elma tec clean A3
Cleaning concentrate (alkaline) for iron, steel, stainless steel
and precious metals: removes punching oil, drawing grease,
soot, forge, grinding and polishing media, high-performance
cooling lubricants, etc.
elma tec clean A4
Universal cleaning concentrate (alkaline): removes oil, grease,
soot, coking, forge, dust, finger prints, etc.
elma tec clean A5
Powerful cleaner (alkaline) in powder form for iron and light
metals: removes forged and gummed oil and grease, grinding
and polishing media, lacquer and paint remnants, wax, etc.
elma tec clean N1
Neutral cleaning concentrate: removes oil, grease, grinding,
lapping and polishing media, dust, sweat, finger prints, etc.
elma tec clean S1
Mild acid cleaning concentrate: removes rust, lime, oxide films
(e.g. verdigirs), grease, oil, etc.
elma tec clean S2
Strong acid cleaning concentrate: removes mineral
contaminations such as lime, rust and other oxides, films that
can be removed with corrosives, etc.
49
Maintenance
9
Maintenance
9.1
Maintenance and care
Pull the mains plug before carrying out any maintenance
works!
ATTENTION
Electrical security
Regularly check the casing and the mains cable for damage to
ensure electric safety.
Check the ultrasonic tank for leaks:
Check the ultrasonic
tank for leaks
Immediately separate the unit from the mains in case of visible
leaks in the ultrasonic tank, e.g.
 if there are any inexplicable stains or residues of cleaning
liquid under or next to the unit
 if there is a high loss of liquid from the filled unheated tank
which is not due to vaporization
Inform your supplier or the manufacturer of the unit on the leak
and the cleaning medium used. Return the unit to the
manufacturer or to your supplier for inspection and repair.
Maintenance of the
ultrasonic tank
Check the ultrasonic tank regularly for residues, in particular on
the tank floor. Remove any residues.
Maintenance of the
casing
Any residues of cleaning liquids can be removed depending on
the type of cleaning medium used. Wipe off the cleaning liquid
with a cloth.
50
Maintenance
9.2
Service life of the ultrasonic cleaner
The ultrasonic tank and particularly the ultrasound transmitting
surfaces are wear parts. The changes on the surfaces that
occur after a certain operating period are visible first as grey
areas and later on as material abrasions, the so-called
cavitational erosion.
In order to slow down the wear and tear as far as possible we
make the tanks of a special highly cavitation-proof stainless
steel.
To prolong the service life of your ultrasonic unit even more we
recommend to observe the following instructions:
 Gently clean the surfaces from any residues of removed
contamination, in particular of polishing pastes, metal
particles, and flash rust (wipe, rinse, etc.). Any abrasive
particles from removed contaminations (e.g. polishing
pastes) must be cleared away as often and as thoroughly as
possible (replace the cleaning bath).
9.3

Use suitable cleaning chemicals, with particular caution
concerning the kind of removed contamination (see
instructions Section 8.2 Note on Risk of damage to the
ultrasonic tank! and information thereon).

Abrasive particles from removed contaminations (e.g.
polishing pastes) must be drained and removed from the
cleaning tank as frequently as possible (exchange the
cleaning bath).

Exchange the cleaning liquid regularly.

Do not operate the ultrasound unnecessarily; switch off after
the cleaning process.
Repair
Opening by
authorised
specialised
personnel only
Repair and maintenance works which require the unit to be
connected and opened must be carried out by authorised and
specialised personnel only.
Risk of electric shock due to live parts inside the unit!
DANGER
Pull the mains plug before opening the unit!
The manufacturer cannot be held responsible for any damage
caused by unauthorised maintenance or repair works on the
unit.
In case of a break-down of the unit please contact the
manufacturer or your supplier.
51
Maintenance
9.4
Malfunctions
Malfunction
Message in the display
liquid level too low !
Filling level below minimum
Remedy
Add liquid.
For a restart press the keys
Ultrasound / Heating. All
previous settings are retained.
Temperature inside the bath >
90°C
temp. limit exceeded !
Let liquid cool down or replace
by cold liquid.
When the temperature of the
liquid has gone down below
80°C the unit can be restarted
by pressing the keys Ultrasound
/ Heating.
Unit has been operated
permanently for > 12h without
any new setting by the user
12h safety off !
Press navigation key 4 to reset
the error message; the unit can
be restarted immediately by
hand.
Temperatur am Display >70 °C
Let unit cool down and restart.
Display Temperatur zu hoch !
Error
Message in the display
Error of temperature measuring
temp. error, check sensor !
No response fromt eh ultrasonic comm. error generator !
generator
If the alarm persists contact the
manufacturer.
Remedy
Switch unit off and on. If the
error message reappears:
check contact of PT100 plug,
check PT100 for short circuit or
contact the manufacturer
Check contacts of feed line
between display and generator
or
contact the manufacturer
Fault on the ultrasonic
generator
generator error flag set !
Contact the manufacturer
If one of these errors occurs, all keys, except the On/Off key,
are deactivated. Heating and ultrasonic are switched off in each
of the error conditions.
52
Maintenance
9.5
Replacing the electronic unit
In the case of a malfunction of the electronic unit, the electronic
unit can be replaced completely (plug & play component).
The electronic unit can be easily replaced as follows:
How to proceed
1. Remove the 4 hexagon socket head screws (see fig. 9.5.1.).
The front panel is now only hooked to the upper edge of the
tank (see fig. 9.5.2.).
2. To remove the front panel from the unit lift it and
simultaneously move the upper part of the front panel
towards the back of the unit. Caution: the front panel is
heavy-weight.
Fig. 9.5.1. Position of the 4 screws on the unit front
Fig. 9.5.2. Front panel hooked to the unit below the upper tank edge
Remove and replug the electric cables one by one from the
original front panel to the new front panel.
53
Putting out of action and waste disposal
10
Putting out of action and waste disposal
The unit can be taken to metal and electronics recycling
stations or returned to the manufacturer.
11
Supplier's contact address
TECHSPANGROUP
Techspan Australia:
P O Box 1012 Mascot,
NSW 1460
Australia
Phone: 1-800 148 791
Fax: 1-800 148 799
Email: [email protected]
www.elma-ultrasonic.com.au
Techspan New Zealand:
P O Box 15262 New Lynn
Auckland 0640
New Zealand
Phone: 0800 603 603
Fax: (09) 827 6596
Email: [email protected]
www.elma-ultrasonic.co.nz
Do you have any queries or suggestions concerning the present
unit, its operation or the Operating Instructions?
Please contact us, we will be glad to assist:
Technical Support
www.techspanonline.com
54
TECHSPAN
Australia Ph- 1-800 148 791 E- [email protected]
New Zealand Ph- 0800 603 603 E- [email protected]
Technische Daten
Phone Australia 1-800 148 791
Phone New Zealand 0800 603 603
[email protected]