Boston Scientific Corporation CRM312005 Manual Do Utilizador
38
Table 6. Guidance and Manufacturer’s Declaration – Electromagnetic
Immunity – for Equipment and Systems That are not Life-Supporting
a,
b,
c
a. The Model 3120 PRM is intended for use in the electromagnetic environment specified
above. The customer or the user of the Model 3120 PRM should assure that it is used in
such an environment.
such an environment.
b. At 80 MHz and 800 MHz, the higher frequency range applies.
c. These guidelines may not apply in all situations. Electromagnetic propagation is affected by
c. These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
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
Model 3120 PRM, including cables,
than the recommended separation
distance calculated from the equation
applicable to the frequency of the
transmitter.
communications equipment should be
used no closer to any part of the
Model 3120 PRM, 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)
(IEC 61000-4-6)
3 Vrms
150 kHz to 80 MHz
150 kHz to 80 MHz
3 V
Radiated RF
(IEC 61000-4-3)
(IEC 61000-4-3)
3 V/m
80 MHz to 2.5 GHz
80 MHz to 2.5 GHz
3 V/m
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).
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,
transmitters, as determined by an
electromagnetic site survey,
d
should
be less than the compliance level in
each frequency range.
each frequency range.
e
Interference may occur in the vicinity
of equipment marked with the
following symbol:
of equipment marked with the
following symbol:
d. 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 Model 3120 PRM is
used exceeds the applicable RF compliance level above, the Model 3120 PRM should be
observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the Model 3120 PRM.
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 Model 3120 PRM is
used exceeds the applicable RF compliance level above, the Model 3120 PRM should be
observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the Model 3120 PRM.
e. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
d
1.17 P
=
d
1.17 P
=
(80 MHz to 800 MHz)
d
2.33 P
=
(800 MHz to 2.5 GHz)