Section 8 Technical Data
A-3
Guidance and manufacturer’s declaration – electromagnetic immunity
The MAXI S 4000 Examination Chair is intended for use in the electromagnetic environment specified below.
The customer or the user of the MAXI S 4000 Examination Chair 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 syn
-
thetic 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.
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 commer-
cial or hospital environment. If
the user of the MAXI S 4000
Examination Chair requires
continued operation during
power mains interruptions,
it is recommended that the
MAXI S 4000
Examination Chair be
powered from an
uninterruptible power supply
or a battery.
Power frequency (50/60
Hz) magnetic field
IEC 61000-4-8
3A/m
3A/m
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical commer-
cial or hospital environment.
NOTE: UT is the a.c. mains voltage prior to application of the test level.
Appendix A-2
