Emfit D-1090-2G, Руководство пользователя, Страница: 14 / 15

14
Electromagnetic immunity
Immunity test IEC 60601 test
level Compliance
level
Electromagnetic environment
–
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
[
V
1
] = 3 V
150 kHz to 80 MHz
[
E
1
] = 3 V/m
80 MHz to 2,5 GHz
Portable and mobile RF communications equipment
should be used no closer to any part of the
The Emfit Nocturnal Epileptic Tonic-Clonic Seizure Monitor ,
including cables, than the recommended separation distance
calculated from the equation applicable to the frequency of the
transmitter.
Recommended separation distance
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,
should be
less than the compliance level in each frequency
range.
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 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 [
EQUIPMENT
or
SYSTEM
] is
used exceeds the applicable RF compliance level above, the [
EQUIPMENT
or
SYSTEM
] should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting
or relocating the [
EQUIPMENT
or
SYSTEM
].
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than [
V
1
] V/m.