E
LECTRICAL
I
NFORMATION
Combination Blanket/Fluid Warmer
▪
Operator’s Manual
▪
M N-39940
▪
Rev 3
▪
8/20
54
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Electromagnetic
immunity
The warmer is intended for use in the electromagnetic environment specified
below.
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Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment - guidance
Electromagnetic
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
Main power quality should be that of a
typical commercial or hospital environment.
The warmer does not have any input/output
lines.
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% 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
<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
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
(50/60 Hz)
magnetic field
IEC 61000-4-8
30 A/m
30 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.
