3M Littmann 3100 - Electromagnetic Immunity Standards

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GB English
Declaration – electromagnetic immunity
The 3M Littmann® Electronic Stethoscope, Model 3100, is intended for use in the electromagnetic environment specifi ed
below. The customer or the user of Model 3100 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, concrete or
ceramic tile. If fl oors are covered with
synthetic material, the relative humidity
should be at least 30%.
Electrical fast transient/
burst IEC 61000-4-4
± 2 kV for supply lines
± 1 kV for input/output lines
Not applicable
Surge IEC 61000-4-5 ± 1 kV differential mode
± 2 kV common mode
Not applicable
Power frequency
(50/60 Hz) magnetic
fi eld IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic fi elds should
be at levels characteristic of a typical
location in a typical commercial magnetic
fi eld or hospital environment.
Voltage dips, short
interruptions and
voltage variations on
power supply lines IEC
61000-4-11
< 5 % UT (>95% dip in UT) for
0.5 cycle
40 % UT (60% dip in UT) for
5 cycle
70 % UT (30% dip in UT) for
25 cycle
< 5% UT (>95% dip in UT)
for 5 sec
Not applicable
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