Elmasonic E Operating Instructions Ver 07

Contents

Contents Contents ... 2 1

General... 4

2

Important safety warnings ... 4 2.1 2.2

3

Functioning ... 6 3.1

4

Heating up of the cleaning liquid ...17 Temperature-controlled cleaning...18 Automatic mixing of the liquid during heating up ...18 Starting the cleaning process manually ...19 After the cleaning ...19

Cleaning media ... 20 8.1 8.2 8.3

2

Filling of the unit...14 Placement of cleaning items ...15

Ultrasonic cleaning process... 16 7.1 7.2 7.3 7.4 7.5

8

Set up of the liquid drain (from E 60 H) ...12 Connecting the unit to the mains ...13

Putting unit into operation ... 14 6.1 6.2

7

Elmasonic E product features ... 7 CE conformity ... 7 Delivered equipment ... 7 Unit front view / side view... 8 Unit back view... 9 Turning knob for draining the tank (from E 60) ... 9 Description of operating elements ...10 Operating and display functions. ...11

Initial operation ... 12 5.1 5.2

6

Ultrasonic cleaning factors ... 6

Product description ... 7 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8

5

Instructions for the use of the present manual... 4 Instructions for the use of the unit ... 5

Limitations of use of cleaners containing solvents ..20 Limitations on aqueous cleaners ...21 List of recommended cleaning media ...21

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© Elma Schmidbauer GmbH

Contents

9

Maintenance ... 22 9.1 9.2 9.3

Maintenance / Care...22 Service life of the transducer tank ...23 Repair ...23

10

Technical details ... 24

11

Trouble shooting ... 25

12

Putting out of action and waste disposal ... 27

13

Manufacturer's contact address... 27

Notes ... 28

© Elma Schmidbauer GmbH

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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 Please observe any additional national safety regulations that may apply.

2.1

Instructions for the use of the present manual Carefully read the Operating Instructions before you operate the unit. Do not use the present electrical unit for any purpose other than described in the Operating Instructions. Warning symbols used in the present manual: This symbol warns of the risk of injury and damage to the equipment. 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 marks additional information. Signal words used in the present manual:

4

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.

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© Elma Schmidbauer GmbH

Important safety warnings

2.2

Instructions for the use of the unit Intended use

The present Elma ultrasonic cleaning unit has been designed for the treatment of items and liquids only. No cleaning of living beings or plants!

User

Operation of the unit by authorized and instructed staff only. Observe the instructions given in the manual.

Mains connection

For safety reasons, the present unit must be connected to a correctly grounded socket only. The technical details indicated on the nameplate must correspond with the available mains connection details, in particular those of the mains voltage and current connected value.

Prevention of electrical accidents

For purposes of maintenance and care of the unit, in case of suspected humidity inside the unit or in case of malfunctions and after operation pull the mains plug. The unit must be opened by authorised specialised personnel only.

Cleaning liquid

Hot surfaces and liquids

Fill the unit with a sufficient quantity of cleaning liquid before switch-on. Flammable liquids must not be treated by ultrasound directly in the cleaning tank: risk of fire and explosion! Risk of burning and scalding! Depending on the operational period of the unit, unit surfaces, cleaning liquid, basket and cleaning items can heat up considerably.

Noise emission

Ultrasonic units can produce annoying sounds. Wear personal ear protection devices when working close to an ultrasonic unit which is operated without cover.

Sound transmission at physical contact

Do not reach inside the cleaning liquid or touch sound-carrying parts (tank, basket, cleaning items, etc.) during operation.

Exclusion of liability

The manufacturer cannot be held liable for damages on persons, equipment or cleaning items caused by improper use. The operator is responsible for the instruction of the operating staff.

Storage and transport conditions

Temperature during storage: +5 C (+ 41 F) to + 40 C (+ 104 F) Temperature during transport: -15 C (+ 5 F) to +60 C (+ 140 F) Humidity and air pressure during storage and transport: 10% - 80 % relative humidity; non-condensing Pressure range 500 hPa – 1060 hPa absolute

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Functioning

3

Functioning Today, cleaning by ultrasound is the most modern fine cleaning method. The electric high-frequency energy created by an ultrasonic generator is transformed into mechanical energy by 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.

3.1

Ultrasonic cleaning factors Basically, the cleaning result depends on four factors:

Mechanical energy

Cleaning media

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 E 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. Elma has a large range of cleaning media on offer. Cleaning chemicals are also necessary to reduce the surface tension. This increases considerably the efficiency of the ultrasonic activity.

Temperature

The effect of the cleaning medium is improved by the optimised temperature of the cleaning liquid. For Elma cleaning products please observe the instructions given on the label or the product information leaflets.

Cleaning period

6

The cleaning period depends on the degree and the kind of contamination and on the correct selection of ultrasonic energy, cleaning agent and temperature.

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Product description

4

Product description

4.1

Elmasonic E product features • • • • • • •

• • • • • •

4.2

cleaning tank made of cavitation-resistant stainless steel casing made of stainless steel, hygienic and easy to clean high performance sandwich transducer systems permanent sweep function for an optimised sound field distribution in the cleaning liquid quick-drain valve on the back of the unit (from E 60 H) dry-run protected heating temperature-controlled ultrasonic operation: the cleaning process starts automatically when the set temperature is reached; the cleaning liquid is regularly mixed during the heating up so that the cleaning liquid is evenly heated automatic mixing during heating-up period plug-in mains supply electronical turning knob splashwater-proof operating panel plastic carrying handles (from E 30 H) automatic switch-off after 12 h operation to prevent unintended permanent operation

CE conformity This Elma ultrasonic cleaner meets the requirements for the CE marking based on the EC/EU Low Voltage, Electromagnetic Compatibility (EMC) and RoHS Directives. Refer to the EC/EU Declaration of Conformity that can be obtained from the manufacturer for details.

4.3

Delivered equipment • • • • •

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Ultrasonic cleaning unit Lid Mains cable Tube socket with tube clamp (from E 60 H) Operating Instructions

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Product description

4.4

Unit front view / side view A

B

C

D

Illustration 4.4 Front view / side view E 60 H

8

A

Filling line indicates the recommended maximum filling level. This level should not be exceeded even with cleaning items inside.

B

Plastic carrying handles (Not available on E 15) for the safe transportation of the unit even with hot casing.

C

Turning knob for the draining of the tank (from E 60) Functional description see section 4.6.

D

Operating panel for the control of the operating functions. Description see section 4.7.

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Product description

4.5

Unit back view

A

B

Illustration 4.5 Unit back view (as delivered) Elmasonic E 60 H – E 300 H

A

Liquid drain duct for draining the tank (up from E 60)

B

Mains supply socket for quick and easy removal of the mains cable e.g. for transportation purposes

4.6

Turning knob for draining the tank (from E 60) A

B

Illustration 4.6 View turning knob for draining the tank Elmasonic E 60 H – E 300 H

A

Vertical position: drain open

B

Horizontal position: drain shut

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Product description

4.7

Description of operating elements A

C

B

D

E

F Illustration 4.7 View operating elements

A

Turning knob cleaning period * Setting options for short-period operation: 1; 2; 3; 4; 5; 10; 15; 20; 25; 30 min (with automatic switch-off). Permanent position ∞ for continued operation. Here the unit must be switched off by hand. For safety reasons the unit is automatically switched off after 12h permanent operation.

B

LED display Ultrasound is lighted when ultrasound is switched on

C

LED display Temperature is lighted when heating is switched on; turns dark when set temperature is reached.

D

Turning knob Temperature * the temperature can be set in steps of 5°C in a range of 30° – 80°C.

E

Key start/stopp for ultrasonic operation and temperaturecontrolled ultrasonic operation.

F

Key on/off for switching the unit on and off. * for setting the value: turn knob clockwise for resetting the value: turn knob anti-clockwise

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Product description

4.8

Operating and display functions.

Action

Setting

Result

Display

switch on unit

press on/off key

unit is ready for operation

on/off LED is on

switch off the unit

press on/off key

unit is switched off

all displays are off

start ultrasound - now -

select period by turning knob for cleaning period

ultrasound is operating

ultrasound LED is on

set period

heating operates

ultrasound LED blinks

set temperature by turning knob for temperature

ultrasound is started automatically

press key ►■ (ultrasound) start ultrasound - temperature-controlled*; with mixing of cleaning liquid –

set period ultrasound runs down

as soon as the set temperature is reached the ultrasound LED is on

* if set temperature > actual temperature

keep key ►■ pressed for > 2 sec

stop ultrasound before end of set period

turn set period to 0 or

ultrasound switched off

ultrasound LED is off

switch on heating

select set temperature

heating operates

temperature LED is lighted when heating is operating

press key ►■

temperature LED turns dark when set temperature is reached switch off heating by hand turn set temperature to position „0“

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heating switched off

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temperature LED is off

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Initial operation

5

Initial operation Check for transport damages

Check the Elmasonic E for possible transport damages before initial operation. In case of visible damage do not connect the unit to the mains. Contact your supplier and forwarding agent.

Placement

For operation, place the unit on a dry and solid surface. Ensure that the workplace is sufficiently ventilated! Do not use a soft surface (e.g. a carpet) as this may impede the ventilation of the unit. Risk of electrocution due to humidity inside the unit! Protect the unit from entering humidity.

DANGER

Ambient conditions

5.1

The unit inside is splash-water-proof. Keep workplace and casing dry in order to prevent electrical accidents and damages on the unit. •

Allowed ambient temperature during operation: +5°C - +40°C

•

Allowed relative humidity of air during operation: max.80%

•

In-door operation only

Set up of the liquid drain (from E 60 H) On the delivered unit, the drain duct for the cleaning liquid is closed off with a plastic screw cap. For setting up the liquid drain fix the delivered tube socket to the drain duct.

Proceed as follows

1. Unscrew (anti-clockwise) the plastic screw cap (see illustration 5.1) 2. Screw the tube socket (included in delivery) onto the inside thread of the drain duct (clockwise). 3. Turn the tube socket into the required drain position (see illustration 5.2). The plastic thread is self-sealing when the socket has been screwed in by hand as far as possible. Note: Unscrewing the tube socket (anti-clockwise) can cause a leak of the thread. 4. The drain duct is now ready for connection to a customerprovided discharge system. Use a standard tube (dia 1/2"). Push the tube onto the socket and fix it with the clamp included in the delivery.

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Initial operation

Illustration 5.1 Drain with plastic screw cap

5.2

Illustration 5.2 Drain fitted with standard tube

Connecting the unit to the mains Required mains conditions

Earth grounded socket: 1 phase (220-240 or 100-120V); 1 N; 1 PE protective earth. The power supply must be protected by an earth leakage circuit breaker.

Connect mains cable

© Elma Schmidbauer GmbH

Use the plug-in mains cable delivered with the unit. Connect the unit to a grounded shockproof socket only. Ensure that the values indicated on the nameplate of the unit correspond with the available connecting conditions. The mains plug must be connected to an easily accessible socket only, as it serves as interrupted device!

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Putting unit into operation

6

Putting unit into operation

6.1

Filling of the unit Shut the drain

Observe filling level

Suitable cleaning agents

Prohibited cleaning agents

DANGER

Shut the drain duct before filling the tank. (Turning knob for draining of the tank into horizontal position (see section 4.6). Fill the cleaning tank with a sufficient quantity of a suitable cleaning liquid before switch-on. The optimum filling level is approx. 2/3 of the tank volume. The marked maximum filling level of the tank indicates the recommended filling level with cleaning items in the bath. (See also section 4.4 Illustration 4.4) 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. We recommend the use of the cleaning agents listed in section 8.3. Flammable products are generally not allowed for use in an ultrasonic bath. Observe the safety warnings given in section 8.1. 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 transducer tank!

ATTENTION

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.

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Putting unit into operation

6.2

Placement of cleaning items The ultrasonic bath has been designed for the ultrasonic treatment of items and liquids only. Do not clean living beings or plants! Do not reach inside the tank during ultrasonic operation! CAUTION

Cell walls can be damaged by prolonged exposure to ultrasonic activity. For placing and taking out the cleaning items always switch off the unit.

No cleaning items on the bottom of the tank

Do not place the cleaning items directly onto the bottom of the cleaning tank, as this might lead to damages to the unit.

Use cleaning basket

Place the cleaning items into the stainless steel cleaning basket (accessory equipment).

Acid tank

© Elma Schmidbauer GmbH

For the use of cleaning chemicals which might destroy or damage the stainless steel tank use a separate container. For the special plastic cleaner tank for acid chemicals please contact your supplier.

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Ultrasonic cleaning process

7

Ultrasonic cleaning process Please observe the following instructions before starting the ultrasonic cleaning process. It is the user’s responsibility to check the cleaning results. 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

ATTENTION

Wear personal ear protection devices when working close to an ultrasonic unit which is operated without cover. Sensitive surfaces can be damaged when exposed to ultrasound over prolonged periods, particularly at low cleaning frequencies. Ensure that sensitive surfaces are exposed to ultrasonic acitivity 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 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. For the cleaning of temperature-sensitive items please take into consideration the heating-up of the cleaning liquid. Please observe that the temperature of the cleaning media remains below 42°C when cleaning parts contaminated with fresh protein or blood.

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Ultrasonic cleaning process

7.1

Heating up of the cleaning liquid Depending of the degree and kind of contamination and on the cleaning medium used it might be required to heat up the cleaning liquid. For a quick heating-up process and in order to prevent unnecessary energy losses we recommend to use a cover. The ultrasonic energy is transformed physically into heat. Low set temperatures can be exceeded during ultrasonic operation. The cleaning effect through ultrasonic cavitation is reduced when cleaning with high temperatures. We recommend not to exceed a temperature of 80°C inside the tank. For the recommended cleaning temperature please observe the product information of the used elma clean cleaner. High temperatures! Risk of burning and scalding! CAUTION

Cleaning liquid, cleaning tank, casing, lid, basket and cleaning items can heat up considerably. Do not reach inside the bath. If necessary wear protective gloves when touching unit and basket!

Cleaning temperature recommendations in the medical sector: ATTENTION

Please observe that the temperature of the cleaning media remains below 42°C when cleaning parts contaminated with fresh protein or blood. Please observe the temperature even when using low or no heating.

How to proceed Heating control by turning temperature knob

Press the on/off key to start the unit. Select the required cleaning temperature by turning the temperature knob. The temperature LED is lighted. The heating is operated until the set temperature is reached. As soon as the actual temperature is equal to or higher than the set temperature, the heating switches off. The temperature LED turns dark.

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Ultrasonic cleaning process

7.2

Temperature-controlled cleaning Functioning

How to proceed

Elmasonic E units are equipped with an additional temperaturecontrolled cleaning function. The cleaning process is automatically started as soon as the required bath temperature is reached. 1. Place the cleaning items into the tank. 2. Select the required temperature. 3. Set the required ultrasonic cleaning period. 4. Keep the start/stop key pressed > 2 sec: The unit starts heating up. During the heating-up process the ultrasound is regularly activated to mix the liquid. When the set temperature is reached the ultrasound is switched on for the duration of the set cleaning period. When the set cleaning period has run down, the ultrasonic activity switches off automatically. The heating continues operating at the set temperature.

7.3

Automatic mixing of the liquid during heating up Without mixing of the liquid the generated heat will rise to the surface of the bath. This will cause a strong gradient of temperature inside the cleaning tank. In order to ensure an even heating-up of the cleaning liquid, it makes sense to mix the liquid from time to time, e.g. by means of ultrasound. Elmasonic E units are equipped with an additional mixing device which guarantees the optimum mixing of the cleaning liquid during the heating up process. Functioning How to proceed

The ultrasound is activated for operating periods of approx. 5 seconds each with one-minute breaks in between. 1. select the required cleaning period (set period) 2. set the required temperature 3. to start keep the ►■ key pressed for > 2 sec (see chart 4.8) Operation only when set temperature > actual temperature

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Ultrasonic cleaning process

7.4

Starting the cleaning process manually

Set cleaning period Short period operation

Set the required cleaning period with the turning knob. For short period operation set the required cleaning period at the turning knob. Press the ►■ key to start the ultrasonic operation. The unit starts the ultrasonic cleaning process. The LED display ultrasound is lighted. The ultrasound is automatically switched off when the set period has run down.

Permanent operation

For permanent operation turn the turning knob clockwise into ∞ position. In this operating mode there is no automatic switchoff. The ultrasonic activity must be switched off by hand after the cleaning process has been finished; press the ►■ key to switch of. Alternatively, turn the turning knob back into “0” position. Caution: Turn the turning knob anti-clockwise into “0” position! In order to avoid unintended permanent operation, the Elmasonic E units are equipped with a safety switch-off automatically. The unit switches off completely after 12 h permanent operation. In case you wish to continue operation start the unit again.

7.5

After the cleaning

Follow-up treatment of cleaning items

When the cleaning process is finished rinse the cleaning items, e.g. under the tap.

Drain the unit

Drain the liquid as soon as it is dirty or when the unit is not operated over a prolonged period of time. Certain residues and types of contamination may destroy or damage the stainless steel tank. Use the quick-drain duct to drain the cleaning tank (see section 4.8).

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Cleaning media

8

Cleaning media

ATTENTION

The cleaning chemical to be used must be suitable for the use in an ultrasonic bath to prevent damage to the tank or injuries to the user. Use the recommended cleaners mentioned in section 8.3. Observe the restrictions to cleaners containing solvents and aqueous cleaners mentioned in sections 8.1 and 8.2. For queries please contact the manufacturer or your supplier.

Exclusion of liability

Damages caused by non-compliance with the instructions given in sections 8.1 and 8.2 will not be covered by the manufacturer's warranty!

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

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

20

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).

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© Elma Schmidbauer GmbH