Covidien WarmTouch - Electromagnetic Immunity

Electromagnetic Compatibility (EMC)
Service Manual 13-5
13.7.3 Electromagnetic Immunity
Table13-2.Electromagnetic Immunity Guidelines
Guidance and Manufacturer’s Declaration—Electromagnetic Immunity
(IEC/EN 60601-1-2:2007, Table 2)
The warming system is intended for use in the electromagnetic environment specified below. The cus-
tomer or the user of the warming system should assure that it is used in such an environment.
Immunity
Test
IEC/EN 60601-1-2
Test Level
Compliance
Level
Electromagnetic Environment
Guidance
Electrostatic
discharge (ESD)
IEC/EN 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%.
Electric fast
transient/burst
IEC/EN 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 and/
or hospital environment.
Surge
IEC/EN 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 and/
or hospital environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
IEC/EN 61000-4-11
<5% UT
(>95% dip in UT)
for 0.5 cycle
<5% UT
(>95% dip in UT)
for 0.5 cycle
Mains power quality should be
that of a typical commercial and/
or hospital environment.
If the user of the warming
system requires continued oper-
ation during power mains inter-
ruption, it is recommended that
the warming system be powered
from an uninterruptible power
supply or battery.
40% UT
(60% dip in UT) for
5 cycles
40% UT
(60% dip in UT) for
5 cycles
70% UT
(30% dip in UT) for
25 cycles
70% UT
(30% dip in UT) for
25 cycles
<5% UT
(>95% dip in UT)
for 5 seconds
<5% UT
(>95% dip in UT)
for 5 seconds
Power frequency
(50/60 Hz) magnetic
field
IEC/EN 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 environ-
ment.
Note: UT is the AC main’s voltage prior to application of the test level.