Long-Term Care Bed • D100 (Reorder No. 12001) 5
DECLARATION – ELECTROMAGNETIC EMISSIONS (Continued)
Information about Non Life Support Devices Electromagnetic Interference Immunity
Guidance and Manufacturer’s Declarations - Non-Life-Support-Devices Electromagnetic Interference Immunity
The care bed is intended for use in the electromagnetic environment specied below. The customer or user of the care bed
should ensure that it is used in such an environment.
Interference Immunity
Certication
IEC 60601 Test Level Compliance Level Electromagnetic Environ-
ment - Guidelines
Conducted RF interferences
according to IEC 61000-4-6
Emitted RF interferences accord-
ing to IEC 61000-4-3
3 V eff 150 kHz-80 MHz
3 V/m 80 MHz-2.5 GHz
3 V eff
3 V/m
Portable and mobile radios,
including cables, should not
be used closer to the care
bed than the recommended
working clearance that is
calculated by the equation for
the appropriate frequency.
Where P is the Power of
the transmitter in Watts (W)
according to specications of
the transmitter manufacturer
and D is the recommended
working clearance in meters.
Field strengths from xed RF
transmitters should, at all fre-
quencies, according to a site
survey, a-Note p.5 be lower
than the level of agreement
be b- Note.p.5.
In the vicinity of equipment,
bearing the following symbol,
interference.
Note 1: At 80 and 800 MHz, the higher frequency range must be taken.
Note 2: These guidelines may not apply in all situations. The propagation of electromagnetic waves is affected by absorp-
tion and reection from structures, objects and persons.
a) Field strengths from xed transmitters, such as base stations of mobile telephones and land mobile radios, amateur
radio, AM, FM radio and TV broadcast cannot be predicted with accuracy. To assess the electromagnetic environment due
to xed RF transmitters, an electromagnetic site survey is recommended. If the eld strength at the location of the care bed
exceeds the specied compliance level above then the care bed should be monitored with respect to its normal operation. If
abnormal performance is observed, it may be necessary to take additional measures, such as reorienting or relocating the
care bed.
b) Over the frequency range 150 kHz to 80 MHz, eld strengths should be less than 3 V/m.
Working Clearances
Recommended working clearances between portable and mobile RF communications equipment and the care bed
The care bed is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled. The
customer or user of the care bed can help to prevent electromagnetic interference by maintaining a minimum distance be-
tween portable and mobile RF communications equipment (transmitters) and the care bed as recommended below, accord-
ing to the maximum output power of the communication device.
Output Power of Transmitter
in Watts (W)
Working clearance according to transmission frequency (In meters - M)
150 kHz to 80 MHz at 3
V/m
80 MHz to 800 MHz at 3
V/m
800 MHz to 2.5 GHz at 3 V/m
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters not rated in the list above, the working clearance can be determined using the equation, which belongs to
the transmitter, where P is the nominal output of the transmitter in Watts (W) according to specications of the transmitter
manufacturer.
Note 1: An additional factor of 10/3 is applied when calculating the recommended working clearance between transmitters
in the 80 MHz to 2.5 GHz frequency range in order to reduce the probability that a mobile/portable communications device
unintentionally brought into the patient area could lead to interference.
Note 2: These guidelines may not apply in all situations. Propagation of electromagnetic waves is affected by absorption
and reection from structures, objects and persons.
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