34 ever go user manual – Activeforever Respironics EverGo Portable Oxygen Concentrator User Manual
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34
EverGo User Manual
Guidance and Manufacturer’s Declaration – Electromagnetic Immunity
EverGo is intended for use in the electromagnetic environment specified below� The user of EverGo should assure that it is used
in such an environment�
Immunity Test
IEC 60601
Test Level
Compliance
Level
Electromagnetic Environment - Guidance
Portable and mobile RF communications equipment should be used no closer
to any part of the Device, including cables, than the recommended separation
distance calculated from the equation applicable to the frequency of the
transmitter�
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to
80 MHz
3 V
d = 1.2 P
150 kHz to 80 MHz
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2�5 GHz
10 V/m
c
d = 3.5 P 80 MHz to 800 MHz
d = 7 P
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 meters (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 reflection from structures,
objects, and people�
a
Field strength 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 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 re-orienting or relocating the Device�
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m�
c
EverGo incorporates a robust design and conforms with Radiated RF Immunity Test up to 10 V/m between 80 MHz and 2�5 GHz while the test
requirement is 3 V/m�
Recommended Separation Distance Between Portable and Mobile RF Communication Equipment and the Device
EverGo is intended for use in the electromagnetic environment in which radiated RF disturbances are controlled� The user of
EverGo can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communication equipment (transmitters) and EverGo as recommended below, according to the maximum output power of the
communications equipment�
Rated Maximum Output
Power of Transmitter
(Watts)
Separation Distance According to Frequency of Transmitter (meters)
150 kHz to 80 MHz
d = 1.2 P
80 MHz to 800 MHz
d = 3.5 P
800 MHz to 2�5 GHz
d = 7 P
0�01
0�12
0�35
0�7
0�1
0�38
1�1
2�2
1
1�2
3�5
7
10
3�8
11
22
100
12
35
70
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (m) can
be estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power of the
transmitter manufacturer�
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�