3M 3200 Manual Do Utilizador

Página de 15
20
GB   English
21
GB   English
Declaration – electromagnetic immunity - continued
The 3M™ Littmann® Electronic Stethoscope Model 3200, is intended for use in the electromagnetic environment 
specifi ed below. The customer or the user of Model 3200 should assure that it is used in such an environment.
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment –guidance
Portable and mobile RF communications equipment 
should be used no closer to any part of the Model 
3200, including cables, than the recommended 
separation distance calculated from the equation 
applicable to the frequency of the transmitter.
Recommended separation distance:
Conducted RF 
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
Not applicable
d = 1,2 
√ P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
80 MHz to 2.5 GHz
d = 1,2 
√ P 80 MHz to 800 MHz
d = 2,3 
√ P 800 MHz to 2,5 GHz
where P is the maximum output power rating of the 
transmitter in watts (W) according to the transmitter 
manufacturer and d is the recommended separation 
distance in meters (m).
Field strengths from fi xed RF transmitters, as 
determined by an electromagnetic site survey, 
a
 should 
be less than the compliance level in each frequency 
range, 
b
Interference may occur in the vicinity of 
equipment marked with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and 
refl ection from structures, objects and people.
a
 Field strengths from fi xed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile 
radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. 
To assess the electromagnetic environment due to fi xed RF transmitters, an electromagnetic site survey should be 
considered. If the measured fi eld strength in the location in which the Model 3200 is used exceeds the applicable RF 
compliance level above, the Model 3200 should be observed to verify normal operation. If abnormal performance is 
observed, additional measures may be necessary, such as re-orienting or relocating the Model 3200. 
b
 Over the frequency range 150 kHz to 80 MHz, fi eld strengths should be less than 3 V/m.
Declaration – electromagnetic immunity
The 3M™ Littmann® Electronic Stethoscope Model 3200, is intended for use in the electromagnetic environment 
specifi ed below. The customer or the user of Model 3200 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