3M Littmann 3100 Руководство по эксплуатации - Страница 16
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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
Electrostatic discharge
± 6 kV contact
(ESD) IEC 61000-4-2
± 8 kV air
Electrical fast transient/
± 2 kV for supply lines
burst IEC 61000-4-4
± 1 kV for input/output lines
Surge IEC 61000-4-5
± 1 kV differential mode
± 2 kV common mode
Power frequency
3 A/m
(50/60 Hz) magnetic
fi eld IEC 61000-4-8
Voltage dips, short
< 5 % UT (>95% dip in UT) for
interruptions and
0.5 cycle
voltage variations on
40 % UT (60% dip in UT) for
power supply lines IEC
5 cycle
61000-4-11
70 % UT (30% dip in UT) for
25 cycle
< 5% UT (>95% dip in UT)
for 5 sec
Compliance level
Electromagnetic environment –guidance
± 6 kV contact
Floors should be wood, concrete or
± 8 kV air
ceramic tile. If fl oors are covered with
synthetic material, the relative humidity
should be at least 30%.
Not applicable
Not applicable
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.
Not applicable
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