Oxygen Concentrator
9
Guidance and manufacturer’s declaration–electromagnetic immunity
The Companion 5 is intended for use in the electromagnetic environment specified below. The customer or the user of the
Companion 5 should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment –
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V
rms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 V
rms
3 V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of the Companion 5, including cables,
than the recommended separation distance
calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
800 MHz to 2,5 GHz
where
P
is the maximum output power rat-ing
of the transmitter in watts (W) according to the
transmitter manufacturer and
d
is the
recommended separation distance in metres
(m)
.
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
a
.
should be less than the compliance level in
each frequency range.
b
.
Interference may occur in the vicinity of
equipment marked with the following symbol:
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 reflec-tion
from structures, objects and people.
a
b
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 considered. If the
measured field strength in the location in which the Companion 5 is used exceeds the applicable RF compliance level above,
the Companion 5 should be observed to verify normal operation. If abnormal performance is observed, additional measures
may be necessary, such as re-orienting or relocating the Companion 5.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d
= 1.2 P
d
= 1.2 P
d
= 2.3 P
