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11.0 Notes on EMC
Immunity Test
Voltage Dips / Dropout
IEC 61000-4-11
NOTE
U
is the mains alternating current prior to application of the test levels.
T
11.3 Guidelines and Manufacturer´s Declaration - Immunity
The ATMOS Variotherm plus is intended for use in the electromagnetic environment specified below. The customer
or user of the ATMOS Variotherm plus should ensure that it is used in such an environment.
Immunity Test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
62
IEC 60601-
Test Level
< 5 % U
T
(> 95 % Dip of the U
)
T
for 0.5 Cycle
40 % U
T
(60% Dip of the U
)
T
for 5 Cycles
70% U
T
(30 % Dip of the U
)
T
for 25 Cycles
< 5 % U
T
(>95 % Dip of the U
)
T
for 5 s
IEC 60601-
Compliance Level
Test Level
3 V
3 V
eff
150 kHz to 80 MHz
3 V/m
3 V/m
80 MHz to 2.5 GHz
Compliance Level
< 5 % U
T
(> 95 % Einbruch der U
)
T
für 0,5 Periode
40 % U
T
(60% Einbruch der U
)
T
für 5 Perioden
70% U
T
(30 % Einbruch der U
)
T
für 25 Perioden
< 5 % U
T
(>95 % Einbruch der U
)
T
für 5 s
Electromagnetic Environment -
Guidance
Portable and mobile communications
equipment should be separated from the
ATMOS Variotherm plus incl. the cables
by no less than the distances calculated/
listed below.
Recommended distances:
d = (3,5 / V1) * √(P)
d = (3,5 / E1) * √(P) 80-800 MHz
d = (7 / E1) * √(P) 0,8-2,5 GHz
where „P" is the max. power in watts (W)
and D is the recommended separation
distance in meters (m).
Field strengths from fixed transmitters, as
determined by an electromagnetic site (a)
survey, should be less than the compli-
ance level (b).
Interference may occur in the vicinity of
equipment containing following symbol.
Electromagnetic Environ-
ment - Guidance
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of the
ATMOS Variotherm plus demands
continued function even in case of
interruptions of the energy supply,
it is recommended to supply the
ATMOS Variotherm plus from an
uninterruptible current supply or a
battery.
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