Guidance and manufacturer’s declaration – electromagnetic immunity
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment
--guidance
Electrostatic
discharge
(ESD)
IEC 61000-4-2
±8 kV contact
±15 kV air
±8 kV contact
±15 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
Main power quality should be
that of a typical commercial or
hospital environment
Surge
IEC 61000-4-5
± 1 kV line(s) and
neutral
±1 kV line(s) and
neutral
Main 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 % 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 5s
<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 5s
Main power quality should be
that of a typical commercial or
hospital environment. In case of
main power down or failure, the
current of the Electrical Foot
Massager and Nerve Stimulator
may be dropped off from normal
level, it may be necessary to
use uninterruptible power
supply or a battery.
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3A/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
Page 34 of 37
The Electrical Foot Massager and Nerve Stimulator is intended for use in the electromagnetic
environment specified below. The customer or the user of the Electrical Foot Massager and
Nerve Stimulator should assure that it is used in such an environment.
