User manual for Operating table SU-14
Page 26
Electromagnetic immunity
Medical device operating table SU-14 is to be used in electromagnetic environment specified below. The
customer or the user of medical device the SU-14 should assure that it is used in such an environment.
Immunity test
IEC 60601-1-2
Test level
Compliance level
Electromagnetic environment – guidance
Transmitted
disturbances induced
by fields with radio
frequencies
IEC 61000-4-6
Electromagnetic field
with radio frequency
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 Vrms
3 V/m
Portable and mobile RF communications
equipment should not be used closer to any
part of the operating tables SU-12, including
cables, than the srecommended separation
distance calculated from the equation
applicable
to
the
frequency
of
the
transmitter.
Recommended separating distance:
P
d
2
,
1
=
P
d
2
,
1
=
80 MHz to 800 MHz
P
d
3
,
2
=
800 MHz to 2.5 GHz
Where P is the maximal output power of the
transmitter in watts (W) according to the
transmitter manufacturer and d is the
recommended distance in meters (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,
a
should be less than the
compliance in each frequency range
Interference may occur in the vicinity of
equipment marked with following symbol:
a Field strength from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land
mobile radio, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. 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 medical device the
operating table
SU-12 is used exceeds the applicable RF compliance level above, the operating table SU-12
should be
observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such
as reorienting or relocating medical device the operating table SU-12.
b Over the frequency range 150 kHz to 80 MHz, field strength should be less than 3 V/m.
NOTES
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
