Handy Tech
Elektronik GmbH
Easy Braille
Appendix
Page 37
9
Appendix
Guidance and manufacturer's declaration - electromagnetic
emissions
Guidance and manufacturer's declaration - electromagnetic emissions
The Braille display is intended for use in the electromagnetic environment specified below. The
customer or the user of the Braille display should assure that it is used In such an environment.
Emissions test
Compliance
Electromagnetic environment -
guidance
RF
emissions
CISPR 11
Group 1
The Braille display 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 Braille display is suitable for use in
all establishments, including domestic
establishments
and
those
directly
connected to the public low-voltage
power supply network that supplies
buildings used for domestic purposes.
Harmonic
emissions
IEC 61000-3-2
Class A
Voltage
fluctuations/flicker
emissions
IEC 61000-3-3
Complies
Guidance and manufacturer's declaration
– electromagnetic
immunity
Guidance and manufacturer's declaration
– electromagnetic immunity
The Braille display is intended for use in the electromagnetic environment specified below. The
customer or the user of the Braille display should assure that it is used In such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic
environment guidance
Electrostatic discharge
(ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic
material,
the
relative humidity should be
at least 30%.
Electrical
fast
translent/burst
IEC 61000-4-4
± 2 kV for power
supply lines
± 1 kV for input/output
lines
± 2 kV for power
supply lines
± 1 kV for input/output
lines
Mains power quality should
be
that
of
a
typical
commercial
or
hospital
environment.
Surge
IEC 61000-4-5
± 1 kV differential
mode
± 2 kV common mode
± 1 kV differential
mode
± 2 kV common mode
Mains power quality should
be
that
of
a
typical
commercial
or
hospital
environment.
Voltage
dips,
short
interruptions
and
voltage variations on
power
supply
input
lines
IEC 61000-4-11
< 5 % U
T
(>95 % dip in U
T
)
For 0,5 cycle
40 % U
T
(60 % dip in U
T
)
For 5 cycles
70 % U
T
(30 % dip in U
T
)
For 25 cycles
< 5 % U
T
(>95 % dip in U
T
)
For 0,5 cycle
40 % U
T
(60 % dip in U
T
)
For 5 cycles
70 % U
T
(30 % dip in U
T
)
For 25 cycles
Mains power quality should
be
that
of
a
typical
commercial
or
hospital
environment. If the user of
the Braille display requires
continued operation during
power mains interruptions,
it is recommended that the
Braille display be powered
from
an
uninterruptible
power supply or a battery.
