24
Guidance and manufacturer’s declaration – electromagnetic immunity
The Model Smart Control is intended for use in the electromagnetic
environment specified below. The customer or the user of the Model Smart
Control 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
Not
applicable
Mains power quality should
be that of a typical
commercial or hospital
environment.
Surge
IEC 61000-4-5
±1 kV line(s) to line(s)
±2 kV line(s) to earth
Not
applicable
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 cycle
<5% U
T
(>95% dip in U
T
)
for 5 sec
Not
applicable
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the Model Smart Control
requires continued operation
during power mains
interruptions, it is
recommended that the Model
Smart Control be powered from
an uninterruptible power supply
or a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.
Table 202
Guidance and manufacturer’s declaration – electromagnetic immunity
The Model Smart Control is intended for use in the electromagnetic
environment specified below. The customer or the user of the Model Smart
Control should assure that it is used in such an environment.
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 Smart Control, 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
3 Vrms
150 kHz to
80 MHz
Not
applicable
d = 1,2
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2,5 GHz
3 V/m
d = 1,2 80 MHz to 800 MHz
d = 2,3 800 MHz to 2,5 GHz
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).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
a
should be less than the compliance level in each
frequency range
b
.
Interference may occur in the vicinity of equip-
ment marked with the following symbol:
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
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 Smart Control is used exceeds the applicable RF compliance level above, the Model Smart
Control should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orienting or relocating the Model Smart Control.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Table 204
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