12
Guidance and manufacturer's declaration – electromagnetic immunity
The model GT SERIES is intended for use in the electromagnetic environment specified below. The
customer or the user of the model GT SERIES 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 hospital
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 hospital
environment.
interruptions and
voltage
variations
on power supply
input lines
IEC 61000-4-11
<5 %
(>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 sec
U
T
<5 %
(>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 sec
U
T
Mains power quality should be that
of a typical commercial or hospital
environment. If the user of the model
GT SERIES requires continued
operation during power mains
interruptions, it is recommended that
the model GT SERIES 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.
E
N
G
L
IS
H
15
Guidance and manufacturer's declaration – electromagnetic immunity
The model
BASE280
is intended for use in the electromagnetic environment specified below.
The customer or the user of the model
BASE280
should assure that it is used in such an environment.
Immunity test
IEC 60601test
level
Compliance
level
Electromagnetic environment
–
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 2,5 GHz
3 Vrms
3 A/m
Portable and mobile RF
communications equipment should be
used no closer to any part of the model
BASE280
, including cables, than the
recommended separation distance
calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance
d =
1,2
P
d =
1,2 80 MHZ to 800 MHZ
P
d =
2,3 800 MHZ to 2,5 GHZ
P
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 metres (m).
Field strengths from fixed RF
transmitters, as determined by an
a
electromagnetic site survey, should be
less than the compliance level in each
b
frequency range.
Interference may occur in the vicinity of
equipment 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
BASE280
is used exceeds the applicable RF compliance level above, the model
BASE280
should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the model
BASE280
.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than V/m.
