Philips Azurion - Page 324

Portable and Mobile RF Communic
aons Equipment
The manufacturer provides the following declaraon and guidance concerning electromagnec
immunity: Portable and mobile RF communicaons equipment should be used no closer to any part of
the system, including cables, than the recommended separaon distance calculated from the equaon
applicable to the frequency of the transmier.
The system is intended for use in an electromagnec environment in which radiated RF disturbances
are controlled.
Immunity Test IEC 60601 Test Level Compliance Level Recommended Separ
aon Distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
3 Vrms d = [3.5 / 3]√P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m d = [3.5 / 3]√P for 80 - 800 MHz
d = [7 / 3]√P for 800 - 2500 MHz
P is the maximum output power r
ang of the transmier in was (W) according to the transmier
manufacturer and d is the recommended separaon distance in meters (m).
Field strengths from xed RF transmiers, as determined by an electromagnec site survey, should be
less than the compliance level in each frequency range.
Field strengths from xed transmiers, such as base staons for radio (cellular/cordless) telephones
and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be
predicted theorecally with accuracy. To assess the electromagnec environment due to xed RF
transmiers, an electromagnec site survey should be considered. If the measured eld strength in the
locaon in which the system is used exceeds the applicable RF compliance level above, the system
should be observed to verify normal operaon. If abnormal performance is observed, addional
measures may be necessary, such as reorienng or relocang the system.
Over the frequency range 150 kHz to 80 MHz, eld strengths should be less than 3 V/m.
Interference may occur in the vicinity of equipment marked with the following symbol:
NOTE These guidelines may not apply in all situaons. Electromagnec propagaon is a
ected by
absorpon and reecon from structures, objects and people.
You can help prevent electromagnec interference by maintaining a minimum distance between
portable and mobile RF communicaons equipment (transmiers) and the system as recommended
below, according to the maximum output power of the communicaons equipment.
The following table provides recommended separaon distances between portable and mobile RF
communicaons equipment and the system.
Rated maximum output
po
wer of transmier W
Separaon distance according to frequency of transmier
150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2.5 GHz
d = [3,5 / 3]√P d = [3,5 / 3]√P d = [7 / 3]√P
0.01
0.3
1
0.3
1
0.3
1
0.1 0.37 0.37 0.73
1 1.17 1.17 2.33
10 3.69 3.69 7.38
100 11.67 11.67 23.33
1
You should ensure a minimum distance of 0.3 m between any RF transmier, antenna, and antenna cable.
Technical In
formaon Electromagnec Compability
Azurion Release 1.2 Ins
trucons for Use 324 Philips Healthcare 4522 203 52421