Ab Platinum Series User Manual - page 20
36 User Guide for the Platinum Series Sound Processor
User Guide for the Platinum Series Sound Processor 37
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (m) can be estimated using the equation applicable to the
frequency of the transmitter, where P is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer .
Note 1: These guidelines may not apply in all situations . Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people .
Electrostatic
discharge (ESD)
IEC 61000-4-2
Power frequency
(50/60 Hz)
Magnetic Field
IEC 61000-4-8
Radiated RF
IEC 61000-4-3
Guidance and manufacturer’s declaration – electromagnetic immunity
The Platinum Series system is intended for use in the electromagnetic environment
specified below . The customer or the user of the Platinum Series system
should assure that it is used in such an environment .
Table 2: Guidance and Manufacturer’s Declaration-Electromagnetic immunity
Immunity test
IEC 60601
Compliance level
a
Electromagnetic
test level
environment - guidance
± 6 kV contact
± 8 kV air
3 A/m
3 V/m
80 MHz to 2 .5
GHz
Floors should be wood, concrete or
ceramic tile . If floors are covered with
synthetic material, the relative humidity
should be at least 30 % .
Power frequency magnetic fields should
be at levels characteristic of a typical
location in a typical commercial or
hospital environment .
Portable and mobile RF
communications equipment should
be used no closer to any part of the
Platinum Series system, 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 < 800 MHz
d = 2 .3√P ≥ 800 MHz
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,
b
should be
less than the compliance level in each
frequency range .
c
Interference may occur in the vicinity of
equipment marked with the following
symbol:
± 6 kV contact
± 8 kV air
3 A/m
3 V/m
Note 1: These guidelines may not apply in all
situations . Electromagnetic propagation is
affected by absorption and reflection from
structures, objects, and people .
a . Essential performance of the Platinum Series
system per IEC 60601 requirements is defined as
auditory stimulation within safe amplitudes .
b . 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 Platinum
Series system is used exceeds the applicable
RF compliance level above, the Platinum Series
systems should be observed to verify normal
operation .
c . Over the frequency range 150 kHz to 80 MHz,
field strengths should be less than 3 V/m .
Table 3: Guidance and Manufacturer’s Declaration- Separation distances between
RF communications equipment and Platinum Series system
Recommended separation distances between portable and mobile
RF communications equipment and the Platinum Series system
The Platinum Series system is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled . The customer or the user of
the Platinum Series system can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the Platinum Series system as recommended below,
according to the maximum output power of the communications equipment .
Rated maximum output
power of transmitter
(W)
0 .01
0 .1
1
10
100
Separation distance according to
frequency of transmitter
(m)
d = 1 .2√P < 800 MHz
d = 2 .3√P ≥ 800 MHz
0 .12
0 .23
0 .38
0 .73
1 .2
2 .3
3 .8
7 .3
12
23