User Manual

Appendix
32
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.
Checking the
interference
resistance
Test level according
to
IEC 60601-1-2
Compliance level Guidelines for the electromagnetic environment
Conducted
RF interference
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
conducted RF
interference according
to
IEC 61000-4-3
3 V/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
CardioM essenger_II-S_en.book Page 32 Tuesday, May 6, 2008 1:11 PM