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3M Littmann 3000 Manual
Appendix:
Table 201
Declaration – Electromagnetic Emissions
The 3M Littmann® Electronic Stethoscope, Model 3000, is intended for use in the electromagnetic environment specified below.
The customer or the user of the Model 3000 should assure that it is used in such an environment.
Emissions test
Compliance
Electromagnetic environment – guidance
RF emissions CISPR 11
Group 1
Model 3000 uses RF energy only for its internal function. Therefore, its RF
emissions are very low and are not likely to cause any interference in nearby
electronic equipment.
RF emissions CISPR 11
Class B
Model 3000 is suitable for use in all establishments, including domestic
establishments and those directly connected to the public low-voltage power
supply network that supplies buildings used for domestic purposes.
Harmonic emissions
Not applicable
IEC 61000-3-2
Voltage fluctuations/flicker
Not applicable
emissions IEC 61000-3-3
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Table 202
Declaration – Electromagnetic Immunity
The 3M Littmann® Electronic Stethoscope, Model 3000, is intended for use in the electromagnetic environment specified below.
The customer or the user of Model 3000 should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Electrostatic
± 6 kV contact
discharge (ESD
± 8 kV air
IEC 61000-4-2
Electrical fast
± 2 kV for supply lines
transient/burst
± 1 kV for input/output lines
IEC 61000-4-4
Surge
± 1 kV differential mode
IEC 61000-4-5
± 2 kV common mode
Voltage dips, short
< 5 % U
T
interruptions and
(>95 % dip in U
)
T
voltage variations
for 0.5 cycle
on power supply
lines
40 % U
T
IEC 61000-4-11
(60 % dip in U
)
T
for 5 cycle
70 % U
T
(30 % dip in U
)
T
for 25 cycle
< 5% U
T
(>95 % dip in U
)
T
for 5 sec
Power frequency
3 A/m
(50/60 Hz)
magnetic field
IEC 61000-4-8
Compliance level
Electromagnetic environment –guidance
± 6 kV contact
Floors should be wood, concrete or ceramic
± 8 kV air
tile. If floors are covered with synthetic material
the relative humidity should be at least 30 %
Not applicable
Not applicable
Not applicable
3 A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a typical
commercial or hospital environment.
8