Oakworks 300 Series Procedure Chair Rev.D - Manual (Page 19)

16
SPECIFICATIONS
Guidance and manufacturer’s declaration - electromagnetic immunity
The chair is intended for use in the electromagnetic environment specified below. The customer or the user of the
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, con-
crete 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
Not applicable
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 interrup-
tions and voltage variations
on power supply input lines
IEC 61000-4-11
<5 % UT
(>95 % dip in UT)
for 0,5 cycle
40 % UT
(60 % dip in UT)
for 5 cycles
70 % UT
(30 % dip in UT)
for 25 cycles
<5 % UT
(>95 % dip in UT)
for 5 sec
<5 % UT
(>95 % dip in UT)
for 0,5 cycle
40 % UT
(60 % dip in UT)
for 5 cycles
70 % UT
(30 % dip in UT)
for 25 cycles
<5 % UT
(>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 chair requires
continued operation during
power mains interruptions, it
is recommended that the chair
be powered from an uninter-
ruptible 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 loca-
tion in a typical commercial or
hospital environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test level.