29
Appendix
Susceptibility to electromagnetic interference
according to IEC601-1-2
Note:
These guidelines may not be applicable in all
instances. The spread of electromagnetic waves is
influenced by absorption and reflection from build-
ings, objects, and humans.
Note:
Interference can be generated when the CardioMes-
senger is close to devices that have the following
warning sign:
The CardioMessenger is suitable for operation in the indicated electromagnetic environ-
ment. The customer and/or operator of the CardioMessenger should make sure that it is
used in an electromagnetic environment as described below.
Testing susceptibility to
interference
Test level ac-
cording to IEC
60601-1-2
Conformance
level
Guidelines for the electro-
magnetic environment
Conducted RF interfer-
ence according to
IEC 61000-4-6
3 V
eff
150 kHz to
80 MHz
Same as the
test level
The minimum distance of
the CardioMessenger from
portable and mobile radio
devices, including the ca-
bles, should correspond to
the recommended safe dis-
tance that is calculated ac-
cording to the equation for
the suitable transmission
frequency. Recommended
safe distance:
Radiated RF interfer-
ence according to
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
Same as the
test level
for 80 to 800
MHz
for 800 MHz to
2.5 GHz with P as the nomi-
nal output of the transmitter
in Watts (W) according to the
information from the trans-
mitter manufacturer, and d
as the recommended safe
distance in meters (m).
D
1 2 P
,
=
D
1 2 P
,
=
D
2 3 P
,
=
