48
Electromagnetic emitted interference according to IEC 60601-1-2
The CardioMessenger is suitable for operation in the indicated electromagnetic environment.
The customer and/or operator of the CardioMessenger should make sure that it is used in an
electromagnetic environment as described below.
Testing resistance
to interference
Test level according to
IEC 60601-1-2
Conformance level
Guidelines for the electromagnetic environment
Conducted RF inter-
ference according to
IEC 61000-4-6
3V
eff
150 kHz to 80 MHz
Same as test level
The minimum distance of the CardioMessenger from portable
and mobile radio devices, including the cables, should correspond
to the recommended safe distance that is calculated according
to the equation for the suitable transmission frequency.
Recommended safe distance:
D= 1,17
Radiated RF inter-
ference according to
IEC 61000-4-3
3V/m
80 MHz to 2.5 GHz
Same as test level
D= 1,17
for 80 to 800 MHz
D= 2,34
for 800 MHz to 2.5 GHz with P as the nominal output
of the transmitter in Watts (W) according to the information from
the transmitter manufacturer, and d as the recommended safe
distance in meters (m).
The field strength of stationary transmitting devices should be
measured on site
a
and must be lower than the compliance level at
all frequencies
b
.
Interference can be generated when the CardioMessenger is
close to devices that have the following warning sign:
Note: The higher frequency range applies at 80 MHz and at 800 MHz.
Note: These guidelines may not be applicable in all cases. The spread of electromagnetic waves is influenced by absorption and reflection from
buildings, objects, and humans.
p
p
p
CardioMessenger.book Page 48 Monday, March 4, 2013 6:07 PM