Publicidad
51
Hinweise zur
elektromagnetischen
Verträglichkeit (EMV)
Guidance and manufacturer's declaration – electromagnetic immunity
The IMAGE1 S™ 4U camera head is intended for use in the electromagnetic environment specified below.
The customer or user of the IMAGE1 S™ 4U camera head should ensue that it is used in such an environment.
Immunity tests
EN/IEC 60601 test level
Conducted RF disturbances
acc. to IEC 61000-4-6
150 kHz to < 80 MHz
Radiated RF disturbances
80 MHz to 2.5 GHz
acc. to IEC 61000-4-3
1
NOTE: At 80 MHz and 800 MHz, the higher frequency range applies.
1
NOTE: These guidelines may not apply in all situations. The propagation of electromagnetic quantities is affected by absorptions and reflections of
buildings, objects, and persons.
The ISM (industrial, scientific and medical) bands between 150 kHz and 80 MHz are 6,765 MHz to 6,795 MHz; 13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66 MHz
a
to 40,70 MHz.
b
The compliance levels in the ISM frequency bands between 150 kHz and 80 MHz and in the frequency range 80 MHz to 2,5 GHz are intended to decrease the likelihood that mobile/
portable communications equipment could cause interference if it is inadvertently brought into patient areas. For this reason, an additional factor of 10/3 has been incorporated into the
formulae used in calculating the recommended separation distance for transmitters in these frequency ranges.
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
c
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 4U camera head is used exceeds the applicable RF compliance level above, the 4U camera head should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the 4U camera head.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d
Information on
electromagnetic
compatibility (EMC)
Table 4
Compliance level
3 V
3 V
rms
rms
3 V/m
3 V/m
Indicaciones sobre
compatibilidad
electromagnética (CEM)
Electromagnetic environment – guidance
Portable and mobile RF communications equipment should be
used no closer to any part of the IMAGE1 S™ 4U camera head,
including cables, than the recommended separation distance
calculated from the equation applicable to the frequency of the
transmitter.
Recommended separation distance:
f
f
80 MHz to < 800 MHz
h
800 MHz to 2.5 GHz
Where P is the nominal power of the transmitter in watts [W]
according to the information provided by the manufacturer of the
transmitter and d is the recommended separation distance in
meters [m].
Field strengths from fixed RF transmitters, as determined by an
electromagnetic site survey,
should be less than the compliance
a
level in each frequency range
.
b
Interference may occur in the vicinity of equipment marked with
the following symbol:
7
Publicidad
