Atmos 31 P User manual

ATMOS®
Chair 31 P
Operating Instructions
English
503.0800.B
503.0802.B
2015-08 Index: 09
MedizinTechnik

2
ATMOS
Telefon: + 49 7653 689-0
Fax:
+ 49 7653 689-190
+ 49 7653 689-292 (Service Centre)
E-Mail: [email protected]
Internet: http://www.atmosmed.com
MedizinTechnik GmbH & Co. KG
Ludwig-Kegel-Str.16
79853 Lenzkirch
Germany
page
1.0 Introduction ............................................................3-5
1.1 Notes on operating instructions................................... 3
1.2 Function ...................................................................... 4
1.3 Intended use ............................................................... 4
1.4 Scope of supply........................................................... 5
1.5 Transport and storage................................................. 5
1.6 Explanation of symbols ............................................... 5
2.0 For your safety .......................................................... 6
3.0 Installation and start-up ........................................7-8
3.1 Operating elements..................................................... 7
3.2 Electrical connection ................................................... 7
3.3 Fixing the ATMOS®Chair 31 P.................................... 7
3.4 Mounting the foot rest ................................................. 8
3.5 Fixation of the back rest .............................................. 8
3.6 Adjusting the head rest ............................................... 8
3.7 Removing the head rest .............................................. 8
4.0 Operation ..............................................................9-10
4.1 Positioning the patient................................................. 9
4.2 Adjusting the seat height............................................. 9
4.3 Rotating the upper part ............................................... 9
4.4 Adjusting the backrest................................................. 9
4.5 Adjusting the fold-away foot rest ............................... 10
5.0 Cleaning and care ................................................... 11
6.0 Maintenance and service........................................ 12
7.0 Troubleshooting ...................................................... 12
8.0 Options, accessories and spare parts .............13-14
8.1 Options...................................................................... 13
8.2 Accessories............................................................... 13
8.3 Spare parts................................................................ 14
9.0 Technical data ......................................................... 15
10.0 Testing / Disposal.................................................... 16
10.1 Checking ATMOS devices......................................... 16
10.2 Disposal .................................................................... 16
11.0 Notes on EMC.....................................................17-19
Table of contents

3
1.0 Introduction
These operating instructions contain important notes on how to operate the ATMOS®Chair 31 P
safely, correctly and effectively. Their reading helps to avoid risks, and also to reduce repair costs
and down-time. That increases, amongst other things, the reliability and service life of the device.
These operating instructions serve not only for new operating personnel to be instructed in its use,
but also for use as a reference manual. Full or partial reproduction is subject to prior written appro-
val from ATMOS.
These operating instructions must always be kept available near the device.
Care and safety inspections in conjunction with professional execution provide for operational safety
and readiness for use of your ATMOS®Chair 31 P and are therefore a must besides regular clea-
ning.
Repair work and safety inspections may only be carried out by expert personnel authorised by
ATMOS. By applying original spare parts you will have the guarantee that operational safety,
readiness for work and the value of your ATMOS®Chair 31 P will be preserved.
●The product ATMOS®Chair 31 P bears CE marking CE according to the EC
Directive of the council for medical products 93/42/EEC, Directive 2007/47/EC dd.
05 September 2007 and meets the basic requirements of annex I of this directive.
● The product ATMOS®Chair 31 P complies with all applicable requirements of the directive
2011/65/EC restricting the use of certain hazardous substances in electrical and electronic
equipment (“RoHS”).
● The declaration of conformity and our general standard terms and conditions can be obtained
on our website at www.atmosmed.com
● The quality management system applied at ATMOS has been certifi ed according to international
standards EN ISO 9001 and EN ISO 13485.
● Prior to start-up please peruse chapter 2.0 „For your safety“, in order to be prepared for any
possible dangerous situations.
Please store this document near the device for later use!
These operating instructions are valid for the following devices:
●ATMOS®Chair 31 P REF 503.0802.0
Colour: white-dove blue
●ATMOS®Chair 31 P REF 503.0800.0
Coulor: basic-dove blue
●ATMOS®Chair 31 P REF 503.0801.0
Special colour
1.1 Notes on operating instructions

4
1.2 Function
●The ATMOS®Chair 31 P (for patients) guarantees a
comfortable deportment for the patient (seating or
half-lying position) at optimum examination position.
●The ATMOS®Chair 31 P is equipped with a mechanical
height adjustment. The seat height can be varied
between 48 - 68 cm.
●The upper part of the chair is rotatable by 360° and can
be arrested in every height and rotary position by
a fi xing brake.
● The inclination of the backrest is infi nitely variable from
approx. -5° forward to 45° backward.
●Adjustment of the fold-away foot rest (optional) is synchro-
nous with the back rest inclination.
1.3 Intended use
Name: ATMOS®Chair 31 P
Main functions:
This doctor's chair enables the optimum positioning of the doctor
with regard to height and access to the patient.
Med. indications/ application:
Positioning of the patient during standard ENT examinations and
/ or therapy.
Specifi cation of the main function:
Seamless seat made of abrasion resistant and tear-proof leathe-
rette, backrest is infi nitely variable with gas compression from -5°
up to + 45°, solid plastic armrest, open in front for an optimum
legroom, safe head positioning due to projecting and height ad-
justable headrest, infi nitely variable height adjustment of the seat
by an electric motor from approx. 48 cm up to 68 cm, easy patient
positioning resulting from the 360° rotation around its own axis,
can be easily arrested in any height and rotating position using the
foot pedal, the positioning of the foldable foot support (optional)
is done via synchronous coupling with the backrest inclination,
powder-coated base plate with rubber protection ring, disinfectant-
resistant leatherette colour combination.
Application organ: Positioning of the patient
Application time: Temporary (Max. 60 minutes)
Application site:
In clinics and practices for ENT doctors and phoniatrists. The
application of the doctor’s chair must be executed by medically
trained persons only.
Contraindications:
Not suitable as a swivel chair for testing the nystagmus stimulation,
for patients weighing more than 150 kg, a backrest inclination is
only possible when the chair is screwed to the fl oor, not suitable for
positioning the patient in the shock position (completely horizontal).
The product is: X active □ not active
Sterility: Not necessary
Single use product / reprocessing: No single use product
1.0 Introduction

5
1.4 Scope of supply
Prior to dispatch, this ATMOS device was subjected to an extensive functional test and has been carefully packed.
Nevertheless, please compare the contents of the shipment on completeness immediately upon receipt (see delivery note)
1.6 Explanation of symbols
Warning,
especial diligent notice!
Serial number
Order number
Creation date
The CE sign shows that this
product meets the appropriate
requirements of the
EC Directive.
Important information!
1.0 Introduction
●Ambient conditions:
Transport/Storage: -20...+50 °C;
5...95 % air humidity
non-condensing
at air pressure 700...1060 hPa
Operation and
battery charging: +5...+35 °C;
20...95 % air humidity
non-condensing
at air pressure 700...1060 hPa
REF
SN
1.5 Transport and storage
●The transport of the device may only be effected in
a dispatch carton upholstered and offering suffi cient pro-
tection.
●Please document and report damages in transit imme-
diately. For complaints or return deliveries, please use
the enclosed form QD 434.
The form QD 434 can also be downloaded from the
internet www.atmosmed.de.
●Prior to starting up for the fi rst time the unit must be al-
lowed to stand for up to six hours at room temperature
following transport at temperatures below freezing. The
unit may not be operated if it has not acclimatised as it
might be damaged.
!
Creation date

6
2.0 For your safety
For your safety
!
● The ATMOS®Chair 31 P may only be operated in rooms
used for medical purposes, but not in areas subject to
explosion hazards. Explosion harzards may result from
the use of combustible anaesthetic agents, skin cleansing
agents or disinfectants.
● The ambient conditions specifi ed in section 9.0
"Technical specifi cations" must be strictly observed!
● To guarantee safe operation of the ATMOS®Chair 31 P, it
must be screwed tightly onto the fl oor. To avoid damages,
check, prior to this fi xing, whether there are feed lines
(heating, current, water etc.) in the fl oor.
● Before connecting the device to the power line, check
that the voltage and frequency ratings of the power line
correspond to those indicated on the type plate.
● Ensure that your patients sit in the middle of the seat.
A constant unilateral strain on the seat can damage the
surface.
● For current entry, only the supplied power cable (or an
equivalent one) may be used.
● Correct configuration in assembly of country-specific
connections:
green/yellow protective conductor (PE)
blue neutral conductor (N)
black resp. brown phase (L)
● Prior to every application of the equipment make sure that
all connecting lines are technically safe and in proper con-
dition. Damaged leads must be replaced immediately!
● The design of the ATMOS®Chair 31 P fulfi lls the require-
ments of IEC 601/EN 60601 and of protection class I.
The device must only be connected to a properly installed
socket with non-fused earthed wire.
● Disconnection of the chair from the power line is only
possible by pulling the mains plug! First remove the plug
from the wall outlet. Then the power cord may be discon-
nected from the chair. Never touch the plug or cord with
wet hands.
● In case of non-use, service, repair or cleaning work the
chair must be disconnected from the current supply.
● The ATMOS®Chair 31 P fully complies with the electro-
magnetic immunity requirements of standard IEC 601-1-2
/ EN 60601-1-2 "Electromagnetic compatibility - Medical
Electrical Equipment".
● Before the patient takes a seat, when he gets up
from the chair and prior to starting the examination
(after positioning of the patient), make sure that the
swivel joint is arrested (multifunction lever in top
position).
● ATMOS neither guarantees error-free function nor
is ATMOS liable for personal injury and damage to
property if
• original ATMOS parts are not being used,
• the advice for use in these operating instructions
is not being observed,
• assembly, new settings, alterations, extensions
and repairs have been carried out by personnel
not authorised by ATMOS.
● The warranty will be rendered invalid in case of da-
mages caused due to the utilization of accessories or
consumables which are not approved by ATMOS for
use with this chair.
● Please note:
A medical insulating transformer with earth leakage
monitor or any similar safety system acc. to EN 60
601-1 is required, if several devices are connected
over one common power supply. The transformer
must correspond to the power consumption of all the
devices to be connected.
● When connecting several devices to an insulated
ground receptacle, the allowed strain and leakage
current have to be observed!
Prior to use a visual inspection is required. If any
parts are defective the ATMOS®Chair 31 P may
not be used. Please contact your service partner.
The ATMOS®Chair 31 P may be operated only in
rooms used for medical purposes, but not in
areas subject to explosion hazards and in oxygen
rich environments.
Please notice that the ATMOS®Chair 31 P may not
be lifted or transported by pulling on the operation
lever.

7
3.0 Installation and start-up
Fig 1. ATMOS®Chair 31 P
3.1 Operating elements
Head rest
Lever for adjusting the backrest
Arresting lever / Multifunctional
Electrical lifting column
Fold-away footrest (option)




3.2 Electrical connection
● The ATMOS®Chair 31 P is supplied with a power cable
and connection for non-heating appliances. The power
cable is inserted in the socket for non-heating
appliances at the back of the base and connected to
an insulated ground receptacle.
●The electrical connection values (voltage and
frequency) are stated on the type plate under the seat.
● The chair can only be separated from the current
supply by pulling the mains plug out of the wall socket!
An LED illuminates on the lifting column if the chair is
connected to the mains supply.
� In case of non-use, service, repair or cleaning work
the chair must be disconnected from the current
supply.

Fig 2. Drillings for fi xation of the base plate
�
�
�
�
3.3 Fixing the ATMOS®Chair 31 P
To guarantee safe operation of the ATMOS®Chair 31 P, it
must be screwed tightly onto the fl oor. To avoid damages,
check, prior to this fi xing, whether there are any feed lines
(heating, current, water etc. ) in the fl oor.
The chair is fi xed with the fastening parts kit which is included in
delivery. The sealing caps which are inserted in the drilling holes
must be removed and the base plate has to be fi xed to the fl oor with
the provided anchor fi ttings and screws (Fig. 2).

8
Fig 5. Locking screw
Fig 3. Fixation of the fold-away foot rest
��

3.4 Mounting the foot rest (option)
First of all press the collar bushings (503.0735.0) from inside,
on the left and right, into the front drillings of the seat base
frame. Afterwards bring the upper part of the pre-assembled
component (with the fold-away foot plate in front) in correct
position between the two bushings. Feed the axis (197 mm
length, REF 503.0721.0) through the drillings of the seat
base. A plain washer is installed on either side and the retai-
ning washer is slided into the groove of the axis.
Press the collar bushing (503.0736.0) from outside into the
stiffener. Remove retaining washer and washer from the
axis at the lower bottom end of the seat frame. Pull the axis
back to the right. Lift the stiffener and bring it into the correct
position with the axis and slide it forward again. Afterwards
the plain washer is installed on either side and the retaining
washer is slided into the groove.
3.5 Fixation of the back rest
Insert the back rest into the provided opening. The round
bolts are locked into place in slightly tilting them forwards (,
Fig. 4) and tightening them with the cylinder head screw
M 8x20 and the spring washer Ø 8,1 (, Fig. 4) .
3.6 Adjusting the head rest
The height of the head rest can be adjusted by using
the locking screw (, Fig. 5). It is possible to adjust the
headrest in two different positions. The headrest can comple-
tely be swivelled backwards and then be pulled out from its
support (Fig. 6).
3.7 Removing the head rest
The head rest can be pulled out of the support.
Fig 4. Fixation of the back rest


3.0 Installation and start-up
Fig. 6. Turning the head-rest

9
4.4 Adjusting the backrest
●The backrest can be adjusted to the desired position by
pressing the lever (, fi g. 8) backwards.
●Release the lever which will then return to its initial position.
The backrest remains in the adjusted position.
When pressing the lever again backwards the installed
gas compression damper will induce the backrest to
return to the upright position.
Fig 8. Lever for adjusting the backrest
4.3 Rotating the upper part
The upper part of the chair with the patient can be
completely rotated by moving the multifunction lever from
its highest position (rotation arresting) to the fi rst snap-in
position or even lower till the brake is completely released.
Then rotate the upper part of the chair with the patient and
move the multifunction lever again in highest position
(rotation arresting) when the desired position is achieved.
Fig 7. Multifunctional lever
4.2 Adjusting the seat height
The swivel joint must be arrested (multifunctional
lever in uppermost position = swivel locking) in all
cases, prior to access respectively exit of the patient.
●Move the multifunctional lever (, fi g. 7) in a pumping
manner to moveust the chair upwards.
●Arrest the chair in the desired position (multifunctional
lever in highest position = height locking).
●By pressing the multifunction lever completely down, the
chair can be adjusted to its lowest position.


4.0 Operation
4.1 Positioning the patient
Ensure that your patients sit in the middle of the seat.
A constant unilateral strain on the seat can damage
the surface
.

10
4.5 Adjusting the
fold-away foot rest (option)
Movement of the foot rest is synchronised with the movement
of the back rest.
Fig 9. ATMOS®Chair 31 P in half-lying position
4.0 Operation

11
5.0 Cleaning and care
Do not use any abrasive cleaning agents. For the upholstery usual dry foam may be used.
Treatment with a commonly used care product for artifi cial leather is recommended once a week in order to keep the
upholstery soft and smooth.
!
5.2 Cleaning the unit's surfaces and upholstery
●The surfaces of the ATMOS®Chair 31 P are resistant against all the recommended surface disinfectants stated in chapter
5.3 and 5.4. Nevertheless after any length of time discolourations could possibly develop.
● Substances such as blood need to be removed immediately to prevent stains on the cover material of the upholstery.
●The unit itself can be wiped off with a moist (not wet) cloth.
The described measures to clean and to disinfect do not
rule out regulations valid for the particular company!
●In chapter 5.3 Recommended disinfectants“ all sur-
face and instrument disintectants are stated which are
suitable for disinfection.
Always observe the concentration specifi cations and
instructions by the respective manufacturer.
●Do NOT use
- disinfectants containing concentrated organic
or anorganic acids or bases, since these may cause
corrosion damages.
- disinfectants containing chloramides, phenol
derivatives or anionic tensides, since these may
cause stress cracks in the plastics used.
5.1 General information on cleaning and disinfection
Before cleaning
Medical devices must always offer a maximum in safety and function.
5.3 Recommended surface disinfectant
● The surfaces of the ATMOS®Chair 31 P can be cleaned/wiped with disinfectants containing the following active ingredients:
QAV (quarternary ammonium compounds)
5.4 Recommended disinfectants for the upholstery
Disinfectant Ingredients (in 100 g) Manufacturer
ATMOS Green & Clean SK Alkyldimethyl
(application solution) benzylammonium
chloride < 1 g Metasys, Rum (Austria)
Dialkyldimehty
lammoniumchloride < 1 g
Alkyldimethylethyl
benzylammoniumchloride < 1 g

12
● Maintenance, repairs and period tests may only be car-
ried out by persons who have the appropriate technical
knowledge and are familiar with the product. To carry out
these measures the person must have the necessary test
devices and original spare parts.
ATMOS recommends: work should be carried out by an
authorized ATMOS-service partner. This ensures that
repairs and testing are carried out professionally, original
spare parts are used and warranty claims remain
unaffected.
● Please comply with the country-specifi c guidelines regarding
regular testing especially for the electrical safety.
ATMOS recommends a test every 24 months.
●ATMOS neither guarantees error-free function nor is
ATMOS liable for personal injury and damage to property
if
• original ATMOS parts are not being used,
• the advice for use in these operating instructions is not
being observed,
• assembly, new settings, alterations, extensions and
repairs have been carried out by personnel not
authorised by ATMOS.
● The warranty will be rendered invalid in case of damages
caused due to the utilization of accessories or consumables
which are not approved by ATMOS for use with these
chairs.
6.0 Maintenance and service
7.0 Troubleshooting
The ATMOS®Chair 31 P was subjected to a close quality examination before leaving the factory. If, however, any problems
should occur please contact an ATMOS service technician.
error indication possible cause remedy
height adjustment lifting column is defective exchange the lifting column
is not possible only by an ATMOS service technician
defective power supply unit exchange the power supply unit
only by an ATMOS service technician
power cable is not connected to the mains connect power cable to the mains
> control LED
downward movement of the lifting column is defective exchange the lifting column
chair under load only by an ATMOS service technician
backrest cannot be adjusted gas spring is defective exchange the gas spring
only by an ATMOS service technician

13
8.0 Options, accessories and spare parts
8.1 Options
Description REF
Foot rest, rigid.............................................................................................. 503.0731.0
made of silver-coloured metal tube and hard rubber
Foot rest, fold-away .................................................................................... 503.0810.0
moves synchronously when tilting the back rest
8.2 Accessories
Child seat..................................................................................................... 503.0372.0
made of tearproof imitation leather for long durability,
height: 9 cm, colour: white

14
8.3 Spare parts
Backrest complete, white/dove-blue............................................................ 503.0712.0
Backrest complete, basic/dove-blue............................................................ 503.0713.0
Cylinder head screw, inner edge 8x20 ....................................................... 051.0087.0
Washer 8.4 form-b....................................................................................... 053.0012.0
Seat cushion, white ................................................................................... 503.0714.0
Seat cushion, basic ................................................................................... 503.0715.0
Cylinder head screw, inner edge 6x45 ....................................................... 051.0131.0
Washer 6.4 form-b....................................................................................... 053.0006.0
Head rest complete ..................................................................................... 503.0723.0
Arm rest complete ...................................................................................... 503.0720.0
Cylinder head screw, inner edge 6x30 ....................................................... 051.0083.0
Cylinder head screw, inner edge 6x20 ....................................................... 051.0082.0
Cylinder head screw, inner edge 6x20 ....................................................... 051.0143.0
Washer 6.4 form-b....................................................................................... 053.0006.0
Base plate.................................................................................................... 503.0805.0
Counter sunk screw m 8x25 ....................................................................... 051.0387.0
Lifting cylinder.............................................................................................. 503.0806.0
Axis for backrest ......................................................................................... 503.0721.0
Axis for gas spring rear .............................................................................. 503.0724.0
Axis for gas spring front .............................................................................. 503.0725.0
Lock washer 8 ............................................................................................. 053.0110.0
Lock washer 6 ............................................................................................ 053.0109.0
Gas spring ................................................................................................. 503.0734.0
Fixation plate ............................................................................................... 503.0722.0
Seat support complete ............................................................................... 503.0710.0
Bracket for backrest complete..................................................................... 503.0711.0
Mains cable ................................................................................................. 507.0859.0
8.0 Options, Accessories and spare parts

15
9.0 Technical data
Stand der technischen Daten: 08.02.2010
Voltage 100-230 V~ ± 10 % 50/60 Hz
Current input max. 2,5 A @ 100 V~
max. 1,1 A @ 230 V~
Power cable 3 m long
Power consumption max. 250 VA
Operating time continuous operation: 3 minutes max.
Height adjustment electrically driven lift column,
operation by foot switch
Seat depth 48 cm
Seat height 48 - 68 cm
Protective earth conductor resistance 0,1 Ω
Earth leakage current 0,5 mA
Ambient conditions
Transport/storage
Operation
-20...+50 °C
5...95 % air humidity without condensation,
air pressure 700...1060 hPa
+5...+35 °C
30...95 % air humidity without condensation,
air pressure 700...1060 hPa
Backrest inclination 50° (-5° ... 45°)
Rotation 360°
Dimensions HxWxD 128 x 58 x 64 cm
Back rest HxW 58 x 54 cm
Head rest HxW 19 x 28 cm, height adjustable
Weight 46.4 kg
Max. load 150 kg
Protection class (EN 60601-1) I
Degree of protection type B
Kind of protection IP 51
Regular Period tests Recommended: Testing every 24 months.
Classifi cation according to Appendix IX, EC
Directive 93/42/EEC, Directive 2007/47/EC,
version: 05.09.2007
I
CE marking CE
UMDNS code 16-437
GMDN code 38447
REF 503.0802.0 white / dove-blue
503.0800.0 basic / dove-blue

16
10.0 Checking / Disposal
10.1 Checking ATMOS devices
The ATMOS devices are maintenance-free when they are used according to the operating instructions.
Regular, thoroughly cleaning and disinfection of the application parts respectively the operation in line with the
operating instructions are assumed.
10.2 Disposal
● The ATMOS®Chair 31 P is not comprised of any hazardous materials.
● The materials of the housing can be completely recycled.
● Prior to disposal, device and accessories must be decontaminated.
● The materials are to be separated carefully.
● Pay attention to country-specifi c regulations for disposal (e. g. waste incineration).
Disposal within the EC
The procuct described above is a high-quality medical product with a long service
life. After its life cycle it must be disposed of professionally. According to the EC directives
(WEEE and RoHS) the device may not be disposed of in domestic waste. Please observe
existing national laws and rules for disposal of old devices.
Disposal within the Federal Republic of Germany
In order to guarantee a proper disposal of your old device, please either pass on your old
device to your specialised dealer or send it directly to ATMOS MedizinTechnik for a
professional disposal.
Prior to disposal respectively before transport all parts and hoses must be
thoroughly cleaned, disinfected. The device surface must be disinfected.

17
11.0 Notes on EMC
11.1 Guidelines and Manufacturer´s Declaration - Emissions
The ATMOS® Chair 31 P is intended for use in the electromagnetic environment specifi ed below. The customer or
user of the ATMOS®Chair 31 P should ensure that it is used in such an environment.
Emissions Test Compliance Electromagnetic Environment - Guidance
RF Emissions
CISPR 11
Group 1 The ATMOS®Chair 31 P uses RF energy only for
its internal function. Therefore, its RF emissions are
very low and are not likely to cause any interference
in nearby electronic equipment.
RF Emissions
CISPR 11
Class B The ATMOS®Chair 31 P is suitable for use in all es-
tablishments, including domestic, and those directly
connected to the public low-voltage power supply
network that supplies buildings used for domestic
purposes.
Harmonics IEC 61000-3-2 Class A
Flicker
IEC 61000-3-3
Inapplicable
11.2 Guidelines and Manufacturer´s Declaration - Immunity
The ATMOS® Chair 31 P is intended for use in the electromagnetic environment specifi ed below. The customer or
user of the ATMOS®Chair 31 P should ensure that it is used in such an environment.
Immunity Test IEC 60601-
Test Level Compliance Level Electromagnetic Environment - Guidance
ESD
IEC 61000-4-2
± 6 kV Contact
± 8 kV Air
± 6 kV Contact
± 8 kV Air
Floors should be wood, concrete,
or ceramis tile. If fl oors are synthe-
tic, the relative humidity should be
at least 30%.
EFT
IEC 61000-4-4
± 2 kV Mains
± 1 kV I/Os
± 2 kV Mains
Inapplicable
Mains power quality should be that
of a typical commercial or hospital
environment.
Surges
IEC 61000-4-5
± 1 kV Differential
± 1 kV Common
± 2 kV Differential
± 1 kV Common
Mains power quality should be that
of a typical commercial or hospital
environment.
Power Frequency
50/60 Hz
Magnetic fi eld
IEC 61000-4-8
3 A/m Inapplicable Power frequency magnetic fi elds
should be that of a typical com-
mercial or hospital environment.
■ Medical electrical equipment is subject to special precautions with regard to EMC and must be installed acc.
to following EMC notes.
■ Portable and mobile HF communication facilities can influence medical electrical equipment.
■ The use of other accessories, other converters and cables than stated may lead to an increased emission
or a reduced interference immunity of the equipment or system.
The device may not be used directly next to other devices or piled up with other devices.
If operation next to or piled with other devices is necessary, please watch the device to check its intended
operation in this arrangement.

18
Immunity Test IEC 60601-
Test Level
Compliance Level Electromagnetic
Environment - Guidance
Voltage Dips / Dropout
IEC 61000-4-11
< 5 % UT
(> 95 % Dip of the UT)
for 0.5 Cycle
40 % UT
(60% Dip of the UT)
for 5 Cycles
70% UT
(30 % Dip of the UT)
for 25 Cycles
< 5 % UT
(>95 % Dip of the UT)
for 5 s
< 5 % UT
(> 95 % Dip of the UT)
for 0.5 Cycle
40 % UT
(60% Dip of the UT)
for 5 Cycles
70% UT
(30 % Dip of the UT)
for 25 Cycles
< 5 % UT
(>95 % Dip of the UT)
for 5 s
Mains power quality should be
that of a typical commercial or
hospital environment. If the user of
the ATMOS®Chair 31 P demands
continued function even in case of
interruptions with the energy supp-
ly, it is recommended to supply the
ATMOS®Chair 31 P with uninter-
ruptible current supply or a battery.
NOTE UTis the mains alternating current prior to application of the test levels.
11.3 Guidelines and Manufacturer´s Declaration - Electromagnetic interference
The ATMOS® Chair 31 P is intended for use in the electromagnetic environment specifi ed below. The customer or
user of the ATMOS®Chair 31 P should ensure that it is used in such an environment.
Immunity Test IEC 60601-
Test Level Compliance Level Electromagnetic Environment - Guidance
Portable and mobile communications
equipment should be separated from the
ATMOS®Chair 31 P incl. the cables by no
less than the distances calculated/listed
below.
Recommended distances:
d = (3,5 / V1) * √(P)
d = (3,5 / E1) * √(P) 80-800 MHz
d = (7 / E1) * √(P) 0,8-2,5 GHz
where „P“ is the max. power in watts (W)
and D is the recommended separation
distance in meters (m).
Field strengths from fi xed transmitters, as
determined by an electromagnetic site (a)
survey, should be less than the compli-
ance level (b).
Interference may occur in the vicinity of
equipment containing following symbol.
Conducted RF
IEC 61000-4-6
3 Veff
150 kHz to 80 MHz 3 Veff
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
11.0 Notes on EMC

19
11.4 Recommended separations between portable and mobile RF Communications
equipment and the ATMOS®Chair 31 P
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines may not be applicable in all cases. The propagation of electromagnetic sizes is
infl uenced by absorptions and refl ections of buildings, objects and people.
a The fi eld strength of stationary transmitters, such as base stations of cellular phones and mobile terrain radio
equipment, amateur radio transmitters, cbm broadcast and TV stations cannot be exactly predestined.
To determine the electromagnetic environment in regard to stationary transmitters, a study of the location
should be considered. If the measured fi eld strength at the location where the ATMOS®Chair 31 P
is used exceeds the above compliance level, the ATMOS®Chair 31 P is to be observed to
verify the intended use. If abnormal performance characteristics are noted, additional measures might
be necessary, e. g. a changed arrangement or another location for the device.
b Within the frequency range of 150 kHz to 80 MHz the fi eld strength should be below 3 V/m.
The ATMOS®Chair 31 P is intended for use in an electromagnetic environment in which ratiated disturbances
are controlled. The customer or user of the ATMOS®Chair 31 P can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF Communications equipment and the AT-
MOS®Chair 31 P as recommended below, according to the maximum output power of the communications
equipment.
Separation distance, depending on transmit-frequency m
Nominal output of the
transmitter
W
150 kHz bis 80 MHz
d = [ 3,5 / 3] √P
80 MHz bis 800 MHz
d = [ 3,5 / 3] √P
800 MHz bis 2,5 GHz
d = [ 7,0 / 3] √P
0,01 0,12 0,12 0,24
0,1 0,37 0,37 0,74
1 1,2 1,2 2,4
10 3,69 3,69 7,38
100 11,66 11,66 23,32
For transmitters for which the maximum nominal output is not indicated in the above table, the recommended
separation distance din meters (m) can be determined using the equation belonging to the respective column
whereas P is the maximum nominal output of the transmitter in watts (W) acc. to manufacturer´s specifi cation.
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines may not be applicable in every case. The propagation of electromagnetic sizes is
infl uenced by absorptions and refl ections of buildings, objects and people.
11.0 Notes on EMC

„Patients and doctors worldwide rely on ATMOS“
ATMOS MedizinTechnik GmbH & Co. KG
Ludwig-Kegel-Str. 16
79853 Lenzkirch / Germany
Tel: [phone]
[email protected]
www.atmosmed.com
MedizinTechnik