Owner's manual

IMPORTANT - PLEASE READ
7
Guidance and manufacturer’s declaration –electromagnetic immunity
The Stretchair is intended for use in the electromagnetic environment specified below. The customer or the user of the Stretchair
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 differential mode
±2 kV common mode
±1 kV differential mode
±2 kV common mode
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 UT)
for 0,5 cycle
40 % U
T
(60 % dip in UT)
for 5 cycles
70 % U
T
(30 % dip in UT)
for 25 cycles
<5 % U
T
(>95 % dip in UT)
for 5 sec
<5 % U
T
(>95 % dip in UT)
for 0,5 cycle
40 % U
T
(60 % dip in UT)
for 5 cycles
70 % U
T
(30 % dip in UT)
for 25 cycles
<5 % U
T
(>95 % dip in UT)
for 5 sec
Mains power quality should be
that of a typical commercial or
hospital environment. If the user
of the Stretchair requires
continued operation during
power mains interruptions, it is
recommended that the Stretchair
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 UT is the a.c. mains voltage prior to application of the test level.