16
SPECIFICATIONS
Guidance and manufacturer’s declaration - electromagnetic immunity
The bed is intended for use in the electromagnetic environment specified below. The customer or the user
of the bed should assure that it is used in such an environment.
Immunity Test
IEC 60601 test level
Compliance level
Electromagnetic
environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3Vrms
3V/m
Portable and mobile RF communications equipment should
be used no closer to any part of the bed, including cables,
than the recommended separation distance calculated from
the equation applicable to the frequency of the transmitter.
Recommended separation distance
d = 1.2 √ P
d = 1.2 √ P
80 MHz to 800 MHz
d = 2.3 √ P
800 MHz to 2,5 GHz
Where P is the maximum output power rating of the trans-
mitter in watts (W) according to the transmitter manufacturer
and d is the recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as deter-mined
by an electromagnetic site survey,
a
should be less than the
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment marked
with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accu-
racy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should
be considered. If the measured field strength in the location in which the bed is used exceeds the applicable RF com-
pliance level above, the bed should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the bed
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 1 V/m.
