REFA FAMILY USER MANUAL
Page
21
of
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7
ELECTROMAGNETIC GUIDANCE
Portable and mobile RF communications equipment can affect the system. The
system needs special precautions regarding EMC and must be installed and put
into service according to the EMC information outlined below.
Guidance and manufacturer’s declaration - electromagnetic emissions
The Refa is intended for use in the electromagnetic environment specified below. The customer or the user of the Refa should
assure that it is used in such an environment.
Emission test
Compliance
Electromagnetic environment - guidance
RF emissions CISPR 11
Group 1
The Refa 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 Refa 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 61000-
3-3
Complies
Guidance and manufacturer’s declaration - electromagnetic immunity
The Refa is intended for use in the electromagnetic environment specified below. The customer or the user of the Refa 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 transient/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 professional environment.
Surge
IEC 61000-4-5
±1 kV line(s) to
line(s)
±2 kV line(s) to
earth
±1 kV line(s) to
line(s)
±2 kV line(s) to
earth
Mains power quality should be that of a typical
commercial or professional 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 5 s
<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 5 s
Mains power quality should be that of a typical
commercial or profesional environment.
If the user of the Refa requires continued operation
during power mains interruptions, it is
recommended that the Refa be powered from an
uninterruptible power supply or a battery.
