Instruction Manual

Page 14 of 15
ELECTROMAGNETIC IMMUNITY
Guidance and manufacturer’s declaration – electromagnetic immunity
The OX-10A/5A OXYGEN CONCENTRATOR is intended for use in the electromagnetic environment
specified below. The customer or the user of the OX-10A/5A OXYGEN CONCENTRATOR 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
Conducted RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3 V
3 V/m
Portable and mobile RF communications
equipment should be use no closer to any part
of the OX-A series OXYGEN
CONCENTRATOR including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
d
=
P]
V
5.3
[
1
d
=
P]
E
5.3
[
1
80 MHz to 800 MHz
d
=
P]
E
7
[
1
800 MHz to 2.5 GHz
Where p is the maximum output power rating
of the transmitter in watts (W) according to the
transmitter manufacturer and d is the
recommended separation distance in metres
(m).
b
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 is affected by absorption and
reflection from structures, objects and people.
a
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 OX-10A/5A OXYGEN CONCENTRATOR is used exceeds the applicable RF compliance level above,
the OX-10A/5A OXYGEN CONCENTRATOR should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as reorienting or relocating the
OX-10A/5A OXYGEN CONCENTRATOR.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.