DeVilbiss Healthcare Drive Harmony Guide D'utilisation page 21

IEC60601
Immunity Test
test level
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
NOTE 1: At 80 MHz and 800 MHz, 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.
a/ The ISM (industrial, scientific and medical) bands between 150 kHz and 80 MHz are 6,765 MHz to 6,795 MHz;13,553
MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz to 40,70 MHz.
b/ The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz
to 2.5 GHz are intended to decrease the likelihood that mobile/portable communications equipment could cause interfer-
ence if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 is used in calculating the
recommended separation distance for transmitters in these frequency ranges.
c/ 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 con-
sidered. If the measured field strength in the location in which the device is used exceeds the applicable RF compliance
level above, the device should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the device.
d/ Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
3Vrms150 kHz to
80 MHz outside ISM
bands
a
3 V/m 80 MHz to
2.5 GHz
Compliance Electromagnetic Environment-Guidance
Portable and mobile RF communications equipment should
be used no closer to any part of this device, including
cables, than there commended separation distance
calculated from the equation applicable to the frequency of
the transmitter.
Recommended separation distance
d 1
3 Vrms
=
d 1
=
d
=
3 V/m
Where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manu-
facturer and d is the recommended separation distance in
meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey
compliance level in each frequency range
Interference may occur in the vicinity of equipment
marked with the following symbol:
19
2 . P
150kHz to 80MHz
2 . P
150kHz to 80MHz
P
2 3 .
80 MHz to 2.5G MHz
b
, should be less than the
c
.
d