Interacoustics EyeSeeCam vHIT Manual De Instrucciones página 72

Power frequency (50/60
Hz)
IEC 61000-4-8
Note: UT is the A.C. mains voltage prior to application of the test level.
Guidance and manufacturer's declaration — electromagnetic immunity
The EyeSeeCam is intended for use in the electromagnetic environment specified below. The customer or the user of the EyeSeeCam
should assure that it is used in such an environment,
Immunity test
Conducted RF
IEC / EN 61000-4-6
Radiated RF
IEC / EN 61000-4-3
NOTE1 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
EyeSeeCam is used exceeds the applicable RF compliance level above, the EyeSeeCam should be observed to verify normal operation, If
abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the EyeSeeCam.
(b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
EyeSeeCam vHIT - Instructions for Use - EN
(>95% dip in UT) for 5 sec
3 A/m
IEC / EN 60601
test level
3 Vrms
150kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
5 cycles
70% UT (30% dip in UT) for
25 cycles
<5% UT
3 A/m
Compliance level
3 Vrms
3 V/m
Power frequency magnetic fields should
be at levels characteristic of a typical
location in a typical commercial or
residential environment.
Electromagnetic environment – guidance
Portable and mobile RF communications
equipment should be used no closer to
any parts of the EyeSeeCam, including
cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
d = 1 2 , P
d = 1 2 , P
80 MHz to
800 MHz
d 2 3 , 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:
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