hydrosun®750 Instructions for Use - Eisenhut-Vet AG

hydrosun®750 Instructions for Use 

DIRECTIONS FOR USE AND MAINTENANCE – hydrosun®750 

1) GENERAL INFORMATION.................................................................................................................... 2 

2) COMPONENTS..................................................................................................................................... 2 

3) EXPLANATION OF SYMBOLS ON THE DEVICE.................................................................................... 3 

4) IMPORTANT! SAFETY INFORMATION ................................................................................................. 3 

5) CONTRAINDICATIONS ......................................................................................................................... 6 

6) INSTALLATION..................................................................................................................................... 7 

7) OPERATING HYDROSUN®750 ............................................................................................................. 7 

8) OPERATING THE TIMER ...................................................................................................................... 7 

9) DURATION OF TREATMENT ................................................................................................................ 8 

10) MAINTENANCE ................................................................................................................................. 8 

SAFETY INSPECTION .....................................................................................................................................8 

INSPECTION OF THE FILTER CUVETTE..............................................................................................................8 

11) CLEANSING ....................................................................................................................................... 9 

12) STORAGE........................................................................................................................................... 9 

13) ENVIRONMENTAL PROTECTION........................................................................................................ 9 

14) REPLACEMENTS AND REPAIR ........................................................................................................ 10 

REPLACING THE FILTER CUVETTE .................................................................................................................10 

REPLACING THE LAMP, REMOVING VENTILATOR WITH HOUSING .....................................................................10 

REPLACING THE FUSES ...............................................................................................................................11 

15) WARRANTY AND SERVICE TO THE CUSTOMER ............................................................................. 11 

16) TROUBLE SHOOTING....................................................................................................................... 12 

17) ELECTROMAGNETIC COMPATIBILITY (EMC)................................................................................... 13 

TABLE 1: ELECTROMAGNETIC EMISSIONS.....................................................................................................14 

TABLE 2: RECOMMENDED SAFETY DISTANCES..............................................................................................14 

TABLE 3: ELECTROMAGNETIC STABILITY (INTERFERENCE RESISTANCE)............................................................15 

18) TECHNICAL SPECIFICATION............................................................................................................ 16 

hydrosun®750, HZG GB 10.08 1


1) General information 

Congratulations on your purchase of hydrosun®750! With its wide spectrum of application it can soon 

become an indispensable aid for you. 

This manual is an integral part of the device. Close observance of the informations given in the 

manual is a prerequisite for the intended use and for safe operation. Please unfold the photos at the 

end of this manual so that you can always easily have a look at them. 

The parts of the product described in this manual including accessories, which get in contact with the 

patient according to the instructions, are designed in a way that they fulfill the requirements of 

biocompatibility of the applicable standard if applied according to the instructions. This manual is in 

conformity with the device specifications and the safety standards valid at the time of printing. All rights 

are reserved for devices, circuits, techniques, software programs and names appearing in the manual. No 

part of this manual may be reproduced without written permission from Hydrosun Medizintechnik 

GmbH. Subject to change! In case of any questions, please contact Hydrosun Medizintechnik GmbH or 

their representative. 

hydrosun®750 is a medical radiation device which works with visible light (VIS) and waterfiltered 

infrared-A (WIRA). It can be used in the treatment of adults and children. 

hydrosun®750 has been developed over years of thorough research and development and is particularly 

characterized by homogenous irradiation and high efficiency. 

WIRA® means water-filtered infrared-A. An aqueous solution which is hermetically sealed in a cuvette 

absorbs the skin-irritating wavelengths of the infrared radiation. Thus WIRA enables therapeutic heating 

of deeper tissue layers over longer periods of time without overheating of the superficial skin layers. 

Therapeutic use of the simultaneous visible light (VIS) is equally possible, e.g. therapy of acne or 

photodynamic therapy. 

2) Components (illustration 1) 

Different versions of hydrosun®750 are available. 

On a table stand (illustration 1), on a mobile stand*, on a wall or a ceiling mount 

1. Timer 

2. Body with optics 

3. Water filter 

4. Deepening with colour filter 

5. Set screw (for tightening - prepared ready for use by the manufacturer) 

6. Housing of the ventilator 

7. Distance rod for keeping the safty distance, 32 cm (illustration 2) 

8. Support 

9. Combined plug element: connector plug, main switch off/on, box with fuses (also illustration 3) 

10. Table stand or adapter for attachment to the mobile stand 

11. Power cord 

*Vertical adjustment by pressing the button at the top of the stand while moving the device upward or 

downward! Illustration, see Instruction for Assembling hydrosun Mobile Stand 750. 



3) Explanation of symbols on the device 

Caution, refer to accompanying documents 

Protective earth connection 

Fuse 

4) Important! Safety information 

Please wear IR-eye protection when irradiating facial areas 

Separate collection of electrical and electronic devices 

In case of non-observance of the safety advice there is danger of life! 

The requirements of the directive MDD93/42/EEC are satisfied. The devices correspond to the guideline 

EN 60601-1-2:2006-10 for electromagnetic compatibility. 

• This manual ist an integral part of the device. It should always be kept near the device. Read the 

manual once in its entirety because information pertinent to several chapters is given only once. 

• The use of the hydrosun®750 is only permittet with a valid approval certificate for medical devices of 

the country where it is located. 

• There are no unfavourable influences on other device or from other devices known. In case of a 

common application of the Irradiator with other devices (e.g. measuring instruments) the 

functioning of these appliances should be checked before the application. 

• Portable and mobile HF-communication appliances (e.g. mobile phones) can influence medical 

electrical devices (see chapter 17). 

• Before using the Irradiator, the operator must ascertain that it is in correct working order and 

operating condition (inclusive visual control of the cuvette, see chapter 10). 

• Before initial operation please check if the indication of voltage on the device corresponds to the 

mains voltage. 

• Attention: In order to avoid the risk of an electric shock this device may only be connected to a 

mains power supply with a protective conductor. 

• Defective or damaged mains cable is to be replaced only by the manufacturer or an authorised 

person. 

• The power cord must be routed such that it cannot be damaged and that the device cannot move or 

overturn should someone inadvertently pull on the cord. 

• Do not use the connecting cable when it is convoluted (prevention of induction heating)! 

• Please avoid heavy vibrations of the device! 

• It is not allowed to operate the hydrosun®- Irradiator in a humid environment (e.g. bathroom, near a 

shower or a swimming pool)! 



Continuance of safety information 

• It is important to dry off thoroughly before a hydrosun®-treatment (e.g. after swimming, bathing or 

taking a shower). 

• Liquids must not be allowed to enter the Irradiator. If a liquid has entered the device, it must be 

checked by a service technician before being reused. 

• A defective hydrosun®750 is to be repaired only by the manufacturer or an authorised person. 

• After any repair a savety inspection (chapter 10) is obligatory. Exception: the maintenance and 

replacement works described in this manual. 

• Do not operate the hydrosun®-irradiator unattended!! 

• Do not fall asleep when treating yourself! 

• After use or power failure switch off the device at the main switch(illustration 1, N o 10, and 3 N o 3) 

• Keep the hydrosun®-irradiator out of reach of children. While treating the special heat regulation 

system of infants must be considered. 

• The Hydrosun®750 must be placed on a solid, even base! 

• Do not expose the hydrosun®-irradiator to temperatures below zero (°C)! Permitted range of 

application 10 °C and 35 °C. 

• Application only in an environment without air draught! 

• A simultaneous cooling of the skin is only allowed in case of a suitable control (e.g. restriction of 

irradiance to


Continuance of safety information 

• If sensations of excess heating or stinging are experienced in an irradiated area, the Irradiator must 

be switched off immediately and the filter cuvette controlled (see chapter 10) 

• Avoid looking directly into the lamp when it is on, even if you are not blinded by the light. If parts of 

the face around the eyes are to be irradiated, undamaged and original hydrosun® infrared protective 

goggles must be worn. In order to make the googles more comfortable comercially available cotton 

pads can be moistened and placed on the eyes under the googles. 

• During use, the device must be placed at a minimum distance of 35 cm from walls or from any 

inflammable or heat-sensitive objects. Objects in the irradiation area may become warm and catch 

fire. 

• Only original hydrosun® accessories are allowed to use with the hydrosun® Irradiator 

• The front of hydrosun®750 gets rather hot during use. Do not touch the front part! 

• Wait for at least 15 minutes before service interventions, to allow the device to cool down. 

• The power cord must not come into contact with the hot filter at the front side of the device! 

• Before opening the hydrosun®750 (e.g. for cleansing or replacing the lamp) the device must be 

disconnected from the electrical outlet. 

• Do not use damaged devices, disconnect them from the mains supply. In no case reconnect them! 

• Let treated areas of body cool down slowly, or even cover them. Do not cool them down too 

intensely. 

• Analgesics reduce the heat sensitivity of skin. When using analgesics do not simultaneously apply 

the hydrosun®-Irradiator without medical consultation! 

• If medications or other substances are applied to the irradiated area during or immediately 

temporally near to the treatment, their effect is likely to be considerably increased. Side effects, such 

as allergic reactions, may be increased or noticed for the first time in rare cases. Topical use of 

substances stimulating the blood flow should be avoided, since these substances will, as a general 

rule, have excessive and painful effects. 

• For home use, patients are required to consult their GP, a physician or a specialised therapist. This is 

imperative in particular when the device is used for wound healing or for adjuvant treatment of 

tumours (hyperthermia). 

• In case of hypersensitivity to infrared light be careful with the application of the hydrosun®- 

Irradiator! In case of doubt look for expert advice! 

• Areas showing swelling or inflammation with swelling or exertion of pressure should not be 

irradiated – the troubles may intensify by the heat. In case of doubt ask for competent advice! 

• Persons who cannot provide feedback or persons with malfunctioning sensorium (e.g. diabetic 

neuropathy) must be kept under surveillance closely while treated. The same is necessary at 

treatment of areas with inferior blood perfusion or thin subcutaneous tissue (as for example at the 

shinbone). The control of the filter cuvette (see chapter 10) is always necessary before treatment of 

these patients! Possibly increase the irradiation distance! 

• The use of hydrosun®750 at the same time as other devices supplying energy to the patient (e.g. 

ultrasound or electrotherapie devices) is only allowed after consulting the manufacturer. 

Other joint applications with processes supplying energy or material to the patient are not allowed 

due to lacking experience. In case of a well-founded interest in such combinatioons, please consult 

the manufacturer. 

• The inner screws of the water filter (illustration. 7, No. 2), must never be opened nor removed : 

otherwise the water filtering can be destroyed resulting in a strong risk of burns! 

• This particular Irradiator is not suitable for neonatology. 

• The Irradiator must not be operated with transformer or with different supply voltage or supply 

frequency (see chapter 18). 



5) Contraindications 

General contraindications for local IR-A-irradiation 

• elevated photosensitivity: therapy with photosensitizing medicaments (e.g. porphyrins, tetracyclines, 

sulphonamides, psoralenes, phenothiazines) 

• porphyria (inborn photosensitivity) 

• contact with photosensitizing plants (e.g. St. John's wort - "Hypericum perforatum“) 

• thermo urticaria 

• fresh haematoma (bruise), apart from that can be assumed that an increased resorption of wound 

seroma and wound haematoma by WIRA irradiation is achievable 

Contraindications for local hyperthermia at the extremities 

• acute phlebothrombosis 

• varicosis (varicose vein complaint) 

• serious arterial occlusive disease (stages III and IV) 

• lymphatic vessel illness (lymph oedema, lymphangitis, and others) 

• arterial ulcer 

• neuropathic ulcer 

• open injury 

• acute unclarified skin disease 

• acute rheumatoid arthritis 

• acute attack of gout 

• diabetic neuropathy 

Contraindications for extensive hyperthermia at the body trunk 

• serious febrile illness 

• serious cardiac insufficiency 

• serious hypertonia 

• serious arterial vessel lesions 

• serious vegetative distonia 

• serious respiratory insufficiency 

• consuming system illness 

• hyperthyreosis 

• taking of betablockers 

• pregnancy 

• cardiac pace maker 

Contraindications for IR-A-irradiations in the area of the head 

• acute otitis media 

• acute parotitis 

• cataract 

• glaucoma 

• epilepsy 



6) Installation 

Table device: Take the hydrosun® Irradiator and the table stand out of the shipping box, unpack, and 

mount the table stand on the device according to its separate instruction. Then place it, with the food of 

the stand on a solid surface. 

Mobile stand: If you have acquired an Irradiator with a mobile stand or wall mount, please assemble the 

device as described in the separate instructions. 

7) Operating hydrosun®750 

- Using the power cord connect the device at first to the connector plug (illustration 1, N o 9; illustration 

3, N o 1) and afterwards to a properly installed wall outlet of the mains network. 

- Turn the device on by setting the main switch to “ I “ (illustration 1, N o 9; illustration 3, N o 3). The 

display and the relay of the timer will energize you can set the desired amount of minutes required 

(chapter 8) and start the treatment. The light beam will make it easier for you to direct hydrosun®750 

to the area to be treated. 

- In order to keep the minimum distance, the distance rod must be observed (illustration 1, N o 7). It must 

be guaranteed during treatment that the distance does not fall below the minimum distance (e.g. 

through movements during the period of irradiation). 

- For persons with particularly sensitive skin, a greater distance may be required to ensure that they feel 

comfortable during treatment. In certain cases a greater distance is imperative (e.g. wound treatment). 

However, it should be taken into account that in case of a larger distance the treated area of body is 

extended whereas the intensity of the irradiation decreases. 

- In case of a longer period of non-use or after a day of use the device is to be switched off completely 

at the main switch (illustration 1, N o 10; illustration 3, N o 3). 

8) Operating the timer (illustration 1, N o 1; illustration 4) 

Key functions 

[PROG] Select between hours, minutes and seconds. 

[+] Increments the selected time range. 

[–] Decrements the selected time range 

[RESET] Resets to start time 

[START/STOP] Starts and stops the countdown 

Setting the time: Press the [PROG] button once. This will cause the hour digit to flash. Using the [+] [–] 

keys to set the desired amount of hours required. When keeping keys [+] or [–] depressed, the fashing 

digit will change upwards or downwards. Repeat the process to set minutes and seconds. Pressing 

[ PROG ] again returns the timer from the programming mode to the chronometry mode. Please note: 

After starting the countdown, the key [PROG] is without functions until counting is finished. 

Operation: Press the [START/STOP] button to start the device and the set time begins to count down in 

one second steps. If the [START/STOP] button is pressed during the countdown period, the device will 

deenergize and time remaining is shown on the display. Pressing [ START/STOP ] again restarts the 

device, the countdown continues. When the set time reaches zero the unit emits an audible signal, the 

device deenergizes and the set time is indicated on the display. 



Resetting to the time: If the device is stopped with [START/STOP] during the countdown period 

optionally the [RESET] button will set the time back to the start time. 

Total reset: Press and hold down all three buttons for approx four seconds. > 0:00,oo < will appear on 

the display. 

Operating without time setting: If [START/STOP] is pressed and the display shows > 0:00,oo -:-- < to indicate loss of power. 

When power is resumed the remaining time will be shown and the timer will need to be restarted.. 

9) Duration of treatment 

The maximum application period of 60 minutes per session must not be exeeded unless after consulting 

a physician and under medical care. 

10) Maintenance 

Safety inspection 

- The Irradiator must be checked yearly for its safety. The standard DIN EN 60 601-1 for electrical 

medical devices has to be applied for the inspection. 

Possible regulations of professional associations and worker´s compensation boards typical for the 

particular country where the device is runmust be followed. 

- Thermal inspection: The device must switch off within 240 s when the ventilator is blocked. For this 

inspection the irradiator must have room temperature (24° C ±2° C) at the beginning of the 

measurement. The ventilator is blocked, then the device is switched on and the time stopped. Within 

240 s the halogen lamp must switch off. The unblocked ventilator keeps on running. The inspection is 

successful. Please also effect the following: Visual and function control for damage of the 

mechanical components, especially of the load-bearing parts. In case of doubt exchange them! 

Inspection of the Filter Cuvette 

- First, remove the optical filters (chapter 14)! Align the irradiator horizontally, turn it on and briefly look 

into the Irradior at an angle (Never look straight into the Irradiator at the incandescent filament 

danger of dazzle!). 

- If liquid level is visible behind the first window pane (illustration 5), the cuvette is exhausted and must 

be replaced (chapter 14). 

- If no liquid level is visile the filter is OK. Particles floating in the water do not impair the effectiveness 

of the filter. If a black filter is fitted, the filter cuvette must be removed before the inspection (Kap. 

14). Then look straight into the filter cuvette from the back to check the liquid level. 

- This easy visual inspection is recomended every time you put the Irradiator into operation. It must be 

carried out approximately after 3.000 h or after one year at the latest. Effect this inspection at least 

quarterly. 



11) Cleansing 

Please cool the device down and disconnect it from the mains supply before all cleansing works! Due to 

the air cooling of the waterfilter, on the rear glass of the filter intercepts dust of the surrounding area. 

Remove dust when necessary (approx. every 3 months). 

The filter cuvette and the housing of the ventilator must be removed for cleansing (chapter 14): 

- Wipe the reflector (illustration 6a) and the funnel-shaped heat shield (illustration 6b) carefully with a 

dry, lint-free cloth. 

- Clean the rear glass of the filter with a dry, lint-free cloth. Should the glass be very dirty, you can add 

a standard commercial dishwashing liquid. Subsequently, wipe the glass clean with a lint-free cloth 

without detergent. Do not use abrasive cleansing agents! 

- Reinstall the cuvette by reversing the above operating steps (chapter 14). 

Usually it will be sufficient to clean the external surfaces of the Irradiator with a dry dust cloth. If 

necessary, use a moist cloth and a mild household detergent to remove dirt from the Irradiator. 

12) Storage 

Store the Hydrosun®750 in a cooled-off state and with the mains plug disconnected at a dry, normally 

tempered place. 

13) Environmental Protection 

At the end of their service life, the Irradiator and its accessories must be disposed in compliance with the 

applicable local waste control regulations. The Irradiator only contains non-hazardous substances. At the 

end of the durability do not throw the device into the normal domestic waste. Please bring it for 

recycling to an official collection point. That way you help to preserve the environment. For disposal, the 

Irradiator can be returned to Hydrosun Medizintechnik GmbH carriage paid. Consignments which are not 

delivered freight paid will not be accepted and will be returned at the expense of the sender. 



14) Replacements and repair 

Only original accessories of the manufacturer Hydrosun are allowed to be used with hydrosun®750! 

This is also valid for the mains cable! 

In case of non-observance there may be danger of life for user and patients! 

Replacing the Filter Cuvette (illustration 7) 

Demounting of the filter cuvette (because liquid level is visible, or for cleansing): Swivel the cooled of 

and from mains disconnected device into a vertical position with the filter at the top. Loosen the three 

outer screws (illustration 7, N o 1) on the front side of the cuvette with an Allan key (N o 3) and remove 

the screws. Now you can remove the filter cuvette. The inner screws of the water filter (illustration. 7, 

N o 2), must never be opened nor removed: otherwise the water filtering can be destroyed resulting in a 

strong risk of burns! 

Reinstall the cuvette or the replacement cuvette by reversing the above operating steps. First of all turn 

all screws loosely in until all of them are locked in place. Only then tighten all of them firmly. 

After receiving your order, the Hydrosun Customer Service will send you a new filter as soon as possible. 

When you receive the new filter, please return the defective one in the special shipping box. Please find 

the address and telephone number of the Hydrosun customer service in chapter 15. 

Replacing the lamp, removing ventilator with housing (illustration 8) 

The lamps have a service life of approx. 1,500 operating hours. Use only the lamp types indicated in the 

Technical Specifications chapter. Using lamps with other specifications will cause damage to the 

Irradiator or impair its functionality. Lamps can be obtained through the hydrosun® Customer Service 

(see chapter 15). 

- Using the supplied Allan key (N o 3), loosen and remove the four fastening screws on the back of the 

cooled of and disconnected device (illustration 8a). 

- Remove the faceplate (illustration 8b). 

- Now you can take out the housing of the ventilator (illustration 8c and d). 

- Spread the two retaining clips (illustration 8e, N o 1). 

- Hold the cooling element of the halogen lamp with the fingers and pull the lamp out of the base 

(illustration 8f). 

- Caution, Lamp Damage: Never touch the glass bulb of the lamp. Hold it by the protective cover or the 

lamp base cooling element. Otherwise, sweat, oil or grease will cause the glass to break when the lamp 

warms up. If the glass is accidentally touched with bare fingers, it must be cleaned with a cloth 

moistened with alcohol before use. 

- Before putting in the new halogen lamp please adjust the retaining clips again (illustration 8f, N o 1), so 

that after the assembly the retaining clip snaps in into the lamp base on each side. 

- When mounting the ventilator housing the halogen lamp must be carefully inserted into the borehole 

of the reflector (illustration 8g, N o 2) (borehole is always visible through the big rectangular opening in 

the housing), so that the lamp is not damaged. 

- Now fix the ventilator housing after attaching the ring facing (with the fixing screws). First of all turn 

all screws loosely in until all are fixed. Only then tighten all of them firmly. 



Replacing the fuses (illustration 3) 

- Cooled off and disconnected device: Bend the two safety clips inwards (illustration 3, N o 2 and 4) e.g. 

with a small screwdriver (put the screwdriver into the outermost, narrow slots, illustration. 3, N o 4) and 

take the safety box out of the connector universal element (illustration 3, N o 5). 

- Then pull out the fuses out of the box and put in the new ones. 

- Now insert the box carefully into the connector universal element and press it in until you hear the 

snaping of the safety clips. 

15) Warranty and service to the customer 

The manufacture warrants all parts, excluding lamps (illuminants), to be free from defects for a period of 

2 years from the date of delivery. During this warranty period we will correct any defects, if the defect is 

due to faulty material or workmanship. Not covered by the warranty is, if applicable for the respective 

product, 

- damage resulting from incorrect or improper use (e.g. connecting the device to the wrong voltage or 

current or to an unsuitable power source, damage of the illuminant), 

- damage resulting from improper operation or resort to violence, 

- usual wear and tear, 

- damage that only insignificantly affects the value or usefulness of the device. 

- The halogen lamp (illuminant) is generally excluded from the warranty. 

The warranty and the manufacturer´s third part liability becomes null and void if any unauthorised 

person tampers with the device or if spare parts are used other than original and identified hydrosun® 

parts. 

If you have got any questions, feel free to contact Hydrosun or our partner in your country (see back 

cover for address and telephone number). Our address: 

Hydrosun Medizintechnik GmbH Tel. +49- (0) 7631 / 3 66 32 – 0 

Mauchener Str. 14 Fax: +49- (0) 7631 / 3 66 32 – 9 

D-79379 Muellheim, Germany info@hydrosun.de / www.hydrosun.eu 



16) Trouble shooting 

If hydrosun®750 does not function as desired, first have a look at the following list. If your problem is 

not included in the list, the device has a defect. 

In this case please contact your representative or directly Hydrosun Medizintechnik GmbH. 

Problem Cause Solution 

The irradiated area feels hot on the 

skin despite a regular distance of 

32 cm (distance rod completely 

extended), or patients complain 

about excess heating or stinging 

sensations. 

The filtering effect of the patented 

filter cuvette is partly or 

completely missing. This may 

happen after several years making 

use of hydrosun and if the 

indications for use have not been 

observed (see chapter 10) 

A futher possibility is that the filter 

cuvette is damaged e.g. through 

transport, although this rarely 

occurs. Please check the cuvette 

(chapter 10). 

Irradiator does not illuminate Main switch/timer has turned off 

No connection to power line 

Irradiator switches repeatedly off 

and on again, fan continues to run 

Irradiator switches unintentionally 

off, fan continues to run 

Fan not running although Irradiator 

is illuminated 

Irradiator´s fuses are defect 

Lamp defect 

No power 

Safety cut-out has turned off the 

device 

Safety cut-out has turned off the 

device because the ventilation is 

impaired, e.g. air vents are covered 

and / or 

the room is too hot 

Fan blocked 

Fan defect 

The cuvette must be replaced. See 

chapter 14. (In some seldom cases 

of quite sensible persons - despite 

the cuvette is O.K. - it is 

recommended to enlarge the 

distance to 35-40 cm. 

Caution – Skin burns! 

The Irradiator must not be used 

until a new hydrosun filter cuvette 

has been installed. 

Turn on power switch 

Check power connector and plug 

in, if applicable 

Check fuses, replace if necessary or 

Replace lamp (chapter 14) 

Check power supply 

see below under "Irradiator 

switches unintentionally...“, if these 

measures do not help, the safety 

cut-out must be replaced by the 

Customer Service or at the factory. 

Turn off main switch. Check that 

air vents at the front and back are 

free. Wait until safety cut-out 

resets with an audible click. 

Turn off power switch. Lower room 

temperature, e.g., by airing the 

room or installing air conditioning 

in the room. Wait until safety cut- 

out resets with an audible click. 

Immediately turn off device and 

disconnect it from power line. Open 

back of Irradiator, see chapter 14, 

illustration 8. Check whether it is 

possible to rotate the fan manually, 

remove any objects that block the 

rotation. 

If these measures did not succeed, 

the fan must be replaced at the 

factory. 



Bubbles in the filter cuvette Vibration during transport, 

unfavourable operating conditions 

Single bubbles do not impair the 

function and safety. A large 

number of small bubbles may 

slightly reduce the filter effect. 

The Irradiator should be switched 

on, aligned horizontally and the 

filter is slightly knocked with hard, 

blunt object e.g. the handle of a 

screwdriver, until the bubbles leave 

the glas plate and move up. 

Particles floating in the filter liquid. Caused during production Usually the small size and number 

of floating particles does not affect 

the irradiation intensity. 

Milky filter glass Dust on filter Clean the filter (chapter 11) 

Milky layer on inside of filter glass Not yet known Tin layer at the center of the glass 

will not impair the irradiation 

intensity and does not need to be 

removed. 

Rings, irregular in shape and 

rainbow-coloured on the front of 

the filter 

17) Electromagnetic Compatibility (EMC) 

Optical phenomenon, so-called 

Newton´s rings: result of 

interference between two, almost 

planar surfaces that are in contact 

If the layer covers the entire filter 

glass, the filter needs to be 

replaced (chapter 14). 

This phenomenon cannot be 

eliminated, but it does not affect 

the irradiation intensity. 

Electromagnetic environment: 

hydrosun®750 is suitable for the use in all stationary facilities including the living area and those which 

are directly connected to a public mains supply which also supplies residential buildings. Guidelines 

concerning installation, maintenance and repair: The installation and maintenance of hydrosun®750 

must be effected EMC-compatible. The application of other accessories than indicated can lead to an 

increased emission and/or reduced immunity. Repairs that are not EMC-compatible can also lead to an 

increased emission and/or reduced immunity. 

Guidelines for operation: 

Electronic devices are sensitive to electrostatic discharges and high-frequency electromagnetic fields. For 

the prevention of operational disturbances of hydrosun®750 electrostatic charging of the user should be 

avoided by ESD safety measures (application of antistatic materials). In order to avoid disturbances by 

electrostatic discharges the floors should be made of wood or concrete or be furnished with ceramic 

tiles. If the floor is made of synthetic material the relative humidity should at least be 40 %. In order to 

avoid disturbances of the timer of the hydrosun®750 by HF-variable disturbances, the user should keep a 

minimum distance of 3 meters to portable and mobile HF-telecommunication appliances (More details 

for this can be found in the table 2 „Recommended safety distances “). hydrosun®750 uses HF-energy 

exclusively for its own function. Therefore the emission of high-frequency variable disturbances is 

extremely low and it is very unlikely that other devices operated nearby are disturbed. Nevertheless it 



should be taken into consideration that a combined operation of hydrosun®750 together with other 

appliances can lead to disturbances of Hydrosun®750 or other appliances. Thus it should be taken care 

that hydrosun®750 may not be directly positioned next to or above another electronic device. If it is not 

possible to avoid a positioning of hydrosun®750 directly near medical, analogue measuring devices, it 

must be pointed out to the user of these measuring devices that it is necessary to monitor the results of 

the device in order to check the correct use of the device in the positioning chosen. 

Table 1: Electromagnetic emissions 

Measurements of emissions Conformities 

radiation-coupled HF-emission according to CISPR 11 group 1, class B 

grid-bound HF-emission according to CISPR 11 class B 

overtones according to IEC 61000-3-2 is conforming 

voltage fluctuations/patcher according to IEC 61000-3-3 is conforming 

Table 2: Recommended safety distances 

between portable and mobile telecommunication appliances and hydrosun®750: 

hydrosun®750 is determined for the operation in an electromagnetic environment where the HF-variable 

disturbances are controlled. The user of hydrosun®750 can help to avoid electromagnetic disturbances by 

keeping the minimum distance between portable and mobile HF-telecommunication appliances (emitter) 

and hydrosun®750 depending on the power output of the emitter. 

Nominal capacity of the Safety distance depending on the emission frequency 

emitter [W] 150 kHz-80MHz 80 MHz-800MHz 800 MHz-2,5 GHz 

0.01 0.12 0.12 0.23 

0.1 0.38 0.38 0.73 

2 1.7 1.7 3.25 

10 3.7 3.7 7.3 

100 12 12 23 

From this results a safety distance of approx. 3 m to mobile phones with D1- and E-band whose 

transmitting capacity is limited to approx. 2 Watt. 



Table 3: Electromagnetic Stability (interference resistance) 

Inspections of stability IEC 60601-Inspection level Level of conformity 

Discharge of static electricity 

(ESD) according to IEC 61000-4- 

2 

radiated HF-fields according to 

IEC 61000-4-3 

rapid transient electric variable 

disturbances (Burst) according 

to IEC 61000-4-4 

surge voltages (surges) 

according to IEC 61000-4-5 

conducted high frequency 

according to IEC 61000-4-6 

magnetic field at the frequency 

of the supply voltage according 

IEC 61000-4-8 

voltage drops, short-term breaks 

and fluctuations of the supply 

voltage according to IEC 61000- 

4-11 

+/- 6 kV contact- 

+/- 8 kV air discharge 

80 MHz-2,5 GHz: 3V/m; (not 

keeping alive) 

+/- 2 kV on power line 

+/- 1 kV on signal line 

+/- 2 kV common mode voltage. 

+/- 1 kV push-pull voltage 

3V / 150 kHz up to 80 MHz (not 


3A/m 3A/m 

< 5% Ur for 10 msec 

40% Ur for 100 msec 



+/- 6 kV contact- 

+/- 8 kV air discharge 

80 MHz-2,5 GHz: 3V/m; (not 


+/- 2 kV on power line 

+/- 1 kV on signal line 

+/- 2 kV common mode voltage 

+/- 1 kV push-pull voltage 

3V / 150 kHz up to 80 MHz (not 





< 5% Ur for 5000 msec (system 

cuts off, re-start possible) 



18) Technical Specification 

Design: Halogen lamp as radiation source, hermetical sealed cuvette as water filter (Life of the Filter: 

3.000 hours ~3-4 years), radio-interference-free AC fan for convection cooling, electronic timer to 

determine the treatment time. 

Product type: hydrosun® Irradiator 750 with digital timer 

Irradiation Area visible at a Distance of 32 cm (distance rod): 28 cm diameter 

Radiation emission: WIRA® (waterfiltered infrared A) and VIS (visible light), no UV-radiation 

Technical data of hydrosun®750 depending on rated voltage and power consumption: 

Use only the spare parts metioned in this chart (!): 

Rated Voltage Power Con- Infrared Source Average life Irradiance (distance 32 cm = distance rod) 

50/60 Hz sumption USHIO of source colour filter BTE31 / without colour filter 

230 VAC 600 W HPL 575/230X + 1,500 hours 160 mW/cm² ±10% 180 mW/cm² ±10 % 

230 VAC 775 W HPL 750/230X+ 1,500 hours 200 mW/cm² ±10% 225 mW/cm² ±10% 

Fuses (2 pieces): Type M8 A (slow blow fuse) for all voltage conditions 

Protection class: 1 (N o one) 

Safety Switch: Automatic cut-out, self-resetting when Irradiator cools down (restart) 

Dimensions: Length 28 cm (not including distance rod), width 27 cm, height 28 cm 

Weight: Approx. 7.5 kg (with table stand) 

Ambient Conditions: Temperature +10 °C, max. 35 °C (operation); above 0 °C, max. 50 °C (storage). 

Relative humidity 25% to 95% (no condensation allowed). Atmospheric pressure 600 hPa to 1060 hPa. 

Lifetime of Water Filter: approximately 3000 operating hours or approximately 3 years (only storing 

without using the water filter does not increase the lifetime substantially) 

Classification: Active medical device, class IIa according to 93/42/EEC European Medical 

Device Directive (MDD) §13, Rule 9 

CE Certification: In compliance with directive 93/42/EEC of June 14, 1993 (Medical Device Directive, 

MDD), essential requirements, and harmonised standard EN 60 601-1 

0535

hydrosun®750 Instructions for Use - Eisenhut-Vet AG

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