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Guidance and Manufacturer's Declaration - Electromagnetic Immunity
The CEFAR EASY Electrotherapy System is intended for use in the electromagnetic environment deified below. The customer
or the user of the CEFAR EASY Electrotherapy System should assure that it is used in such an environment.
IEC 60601
Immunity Test
Test Level
3 Vrms
Conducted RF
150 kHz to
IEC 61000-4-6
80 MHz
3 V/m
Radiated RF
80 MHz to
IEC 61000-4-3
2,5 GHz
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 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 CEFAR EASY Electrotherapy System is used exceeds
the applicable RF compliance level above, the CEFAR EASY Electrotherapy System should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating
the CEFAR EASY Electrotherapy System .
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [V
Compliance Level
Portable and mobile RF communications equipment
should be used no closer to any part of the CEFAR
EASY Electrotherapy System, including cables, than
the recommended separation distance calculated
from the equation applicable to the frequency of the
transmitter.
Recommended separation distance
d =
[V
] V, where V
= 3V
1
1
d =
[E
] V/m, where E
= 3V/m
1
1
d =
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).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
be less than the compliance level in each frequency
range.
Interference may occur in the vicinity of equipment
marked with the following symbol:
Electromagnetic Environment - Guidance
3,5
√P
V
[
]
1
3,5
√P
80 MHz to 800 MHz
E
[
]
1
7
√P
800 MHz to 2,5 GHz
E
[
]
1
b
] V/m.
1
GB
should
a
19
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