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TensioMed® Arteriograph24™
21
Electromagnetic immunity
The TensioMed® Arteriograph™ TD3 device is intended for use in the electromagnetic environment specified below. The customer or the
user of the TensioMed® Arteriograph™ TD3 device should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment — guidance
Portable
and
mobile
RF
communications
equipment should be used no closer to any part of
the TensioMed® Arteriograph™ TD3 device,
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 – 800 MHz
d=2,3√P 800 MHz – 2,5 GHz
where
P
is the maximum output power rating
of the transmitter in watts (W) according to
the transmitter manufacturer and
d
is the
recommended separation distance in metres
(m).
Field strengths from fixed RF transmitters, as
determined 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:
Conducted RF
IEC 61000-4-6
3 V
eff
150 kHz – 80 MHz
3 V
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz – 2,5 GHz
3 V/m
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines do 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 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 the TensioMed® Arteriograph™ TD3 device is used exceeds the applicable RF compliance level above, the TensioMed®
Arteriograph™ TD3 device should be observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as re-orienting or relocating the TensioMed® Arteriograph™ TD3 device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and the
TensioMed® Arteriograph™
TD3 device
The TensioMed® Arteriograph™ TD3 device is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the TensioMed® Arteriograph™ TD3 device can help prevent
electromagnetic
interference by
maintaining
a minimum distance between portable and mobile RF communications equipment (transmitters) and the TensioMed®
Arteriograph™ device as recommended below, according to the maximum output power of the communications equipment.
Rated maximum output
power of transmitter
W
Separation distance according to frequency of transmitter
m
150 kHz – 80 MHz
d=[3,5/3]√P
80 MHz – 800 MHz
d=[3,5/3]√P
800 MHz – 2,5 GHz
d=[7/3]√P
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 rated at a maximum output power not listed above, the recommended separation distance
d
in metres (m) can be
estimated using the equation
applicable to the frequency of the transmitter, where
P
is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for 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.
