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E
I
LECTRICAL
NFORMATION
Electromagnetic
immunity
Immunity test
IEC 60601 test level
Electromagnetic
±8 kV contact
discharge (ESD)
±15 kV air
IEC 61000-4-2
Electrical fast
±2 kV for power
transient/burst
supply lines; ±1 kV for
IEC 61000-4-4
input/output lines
Surge
±1 kV differential
IEC 61000-4-5
mode; ±2 kV common
mode
Voltage dips, short
<5% UT (>95% dip in
interruptions and
UT) for 0.5 cycle
voltage variations
40% UT (60% dip in
on power supply
UT) for 1 cycle
input lines
IEC 61000-4-11
70% UT (30% dip in
UT) for 25 cycles
<5% UT (>95% dip in
UT) for 250 sec
Power frequency
30 A/m
(50/60 Hz)
magnetic field
IEC 61000-4-8
NOTE:
UT is the a.c. mains voltage prior to application of the test level.
54
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The warmer is intended for use in the electromagnetic environment specified
below.
Compliance level
±8 kV contact
±15 kV air
+2 kV for power
supply lines
±1 kV differential
mode; ±2 kV
common mode
<5% UT (>95% dip
in UT) for 0.5 cycle
40% UT (60% dip in
UT) for 1 cycle
70% UT (30% dip in
UT) for 25 cycles
<5% UT (>95% dip
in UT) for 250 sec
30 A/m
Co m b i n at i on B l an k e t/ F l u id W a rm e r
Electromagnetic environment - guidance
Floors should be wood, concrete or ceramic
tile. If floors are covered with synthetic
material, the relative humidity should be at
least 30%.
Main power quality should be that of a
typical commercial or hospital environment.
The warmer does not have any input/output
lines.
Mains power quality should be that of a
typical commercial or hospital environment.
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the warmer requires continued
operation during power mains interruptions,
it is recommended that the warmer be
powered from an uninterrupted power
supply or a battery.
Power frequency magnetic fields should be
at levels characteristic of a typical location in
a typical commercial or hospital
environment.
Op er a to r ' s Ma n u al
M N- 39 9 3 0
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Continued on next page
Rev 2
4/ 2 0
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