Operation Manual MB 11 BERAphone
®
/ Classic
8100496 Rev. 6
80
23/10/2019
Electromagnetic Compatibility (EMC)
Portable and mobile RF communications equipment can affect the MB 11. Install and operate the MB 11 according to the EMC
information presented in this section.
The MB 11 has been tested for EMC emissions and immunity as a standalone MB 11. Do not use the MB 11 adjacent to or stacked with
other electronic equipment. If adjacent or stacked use is necessary, the user should verify normal operation in the configuration.
The use of accessories, transducers and cables other than those specified, with the exception of servicing parts sold by MAICO as
replacement parts for internal components, may result in increased EMISSIONS or decreased IMMUNITY of the device.
Anyone connecting additional equipment is responsible for making sure the system complies with the IEC 60601-1-2 standard.
Guidance and manufacturer’s declaration - electromagnetic emissions
The MB 11 is intended for use in the electromagnetic environment specified below. The customer or the user of the MB 11
should assure that it is used in such an environment.
Emissions Test
Compliance
Electromagnetic environment - guidance
RF emissions
CISPR 11
Group 1
The MB 11 uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely to cause
any interference in nearby electronic equipment.
RF emissions
CISPR 11
Class B
The MB 11 is suitable for use in all commercial, industrial,
business, and residential environments.
Harmonic emissions
IEC 61000-3-2
Not applicable
Voltage fluctuations /
flicker emissions
IEC 61000-3-3
Not applicable
Recommended separation distances between portable and mobile RF communications equipment and the MB 11.
The MB 11 is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The customer or
the user of the MB 11 can help prevent electromagnetic interferences by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the MB 11 as recommended below, according to the maximum output
power of the communications equipment.
Rated Maximum output
power of transmitter
[W]
Separation distance according to frequency of transmitter
[m]
150 kHz to 80 MHz
d
= 1.17
√𝑃
80 MHz to 800 MHz
d
= 1.17
√𝑃
800 MHz to 2.7 GHz
d
= 2.23
√𝑃
0.01
0.12
0.12
0.23
0.1
0.37
0.37
0.74
1
1.17
1.17
2.33
10
3.70
3.70
7.37
100
11.70
11.70
23.30
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
At 80 MHz and 800 MHZ, the higher frequency range applies.
Note 2
These guidelines may not apply to all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity
The MB 11 is intended for use in the electromagnetic environment specified below. The customer or the user of the
MB 11
should
assure that it is used in such an environment.
Immunity Test
IEC 60601 Test
level
Compliance
Electromagnetic
environment-guidance
Electrostatic Discharge
(ESD)
IEC 61000-4-2
± 8 kV contact
± 15 kV air
± 8 kV contact
± 15 kV air
Floors should be wood, concrete or
ceramic tile. If floors are covered with
synthetic material, the relative
humidity should be greater than 30%.
Electrical fast
transient/burst
IEC61000-4-4
± 2 kV for power supply lines
100kHz repetition frequency
± 1 kV Line-to-line
100kHz repetition frequency
Not applicable
± 1 kV Line-to-line
Mains power quality should be that of
a typical commercial or residential
environment.
Surge
IEC 61000-4-5
± 1 kV Line-to-line
± 2 kV Line-to-ground
Not applicable
Mains power quality should be that of a
typical commercial or residential
environment.
Voltage dips, short
interruptions and voltage
variations on power
supply lines
IEC 61000-4-11
0%
U
T for 0.5 cycle
0 % UT for 1 cycle
and
70%
U
T
for 25/30 cycles
Single phase: at 0°
Not applicable
Mains power quality should be that of
a typical commercial or residential
environment. If the user of the MB 11
requires continued operation during
power mains interruptions, it is
recommended that the MB 11 be
powered from an uninterruptable
power supply or its battery.
Power frequency (50/60
Hz)
IEC 61000-4-8
30 A/m
30 A/m
Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical commercial
or residential environment.
Note: U
T is the A.C. mains voltage prior to application of the test level.
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