42
Immunity Test
IEC 60601- Test Level
Compliance Level
Electromagnetic Environment -
Guidance
Voltage Dips / Dropout
IEC 61000-4-11
< 5 % U
T
(> 95 % Dip of the U
T
)
for 0,5 Cycles
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
< 5 % U
T
(> 95 % Dip of the U
T
)
for 0,5 Cycles
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
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the ATMOS C 21 / C 31
demands continued function even in case
of interruptions of the energy supply, it is
recommended to supply the ATMOS C 21 /
C 31 from an uninterruptible current supply
or a battery.
NOTE U
T
is the mains alternating current prior to application of the test levels.
12.3 Guidelines and Manufacturer´s Declaration - Immunity
The ATMOS C 21 / C 31 is intended for use in the electromagnetic environment specified below. The customer or user of the
ATMOS C 21 / C 31 should ensure that it is used in such an environment.
Immunity Test
IEC 60601- Test
Level
Compliance Level
Electromagnetic Environment - Guidance
Conducted RF IEC
61000-4-6
3 V
eff
150 kHz to 80 MHz
3 V
Portable and mobile communications equipment
should be separated from the ATMOS C 21 / C
31 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 compliance level (b).
Interference may occur in the vicinity of equipment
containing following symbol:
Radiated RF IEC
61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
12.0 Notes on EMC
