7 Information on Electromagnetic Compatibilty
7 Information on Electromagnetic Compatibility
The medical device is suitable for use in the specified electromagnetic environment. The purchaser or user of the medical device should ensure
that it is used in an electromagnetic environment as described below:
Emission Test
Radio-Frequency Emissions CISPR 11
Radio-Frequency Emissions CISPR 11
Harmonic emissions IEC 61000-3-2
Voltage fluctuations / flicker emissions IEC
61000-3-3
Immunity tests
Electrostatic discharge (ESD)
IEC 61000-4-2
Fast transient electrical
disturbances/ Bursts
IEC 61000-4-4
Surges
IEC 61000-4-5
Voltage interruptions,
short-term interruptions
and fluctuations of the
supply voltage
IEC 61000-4-11
Magnetic field with a supply
frequency (50/60 Hz) per
IEC 61000-4-8
Conducted HF disturbances
IEC 61000-4-6
Radiated HF disturbances
IEC 61000-4-3
Page 43
Compliance
Group 1
Class B
Class A
Complies
IEC 60601-test level
Conformance level
± 6 kV contact discharge
± 6 kV contact discharge
± 8 kV atmospheric
± 8 kV atmospheric discharge
discharge
± 2 kV for power lines
± 2 kV for power lines
± 1 kV for signal lines
± 1 kV for signal lines
± 1 kV Push-pull voltage
± 1 kV Push-pull voltage
± 2 kV common mode
± 2 kV common mode voltage
voltage
<5% U
for 0.5 periods
<5% U
T
40% U
for 5 periods
40% U
T
70% U
for 25 periods
70% U
T
<5% U
for 250 periods
<5% U
T
3 A/m
3 A/m
3 V
10 V
eff
150 kHz to 80 MHz
outside of the ISM
a
bands
3 V/m
10 V/m
80 MHz to 2.5 GHz
Electromagnetic Environment
The medical device uses RF energy only for its internal function.
Therefore, the RF emission is very low and not likely to cause any
interference in nearby electronic equipment.
The medical device is for use in all facilities including residential facilities
and facilities that are directly connected to a public power supply that also
supplies residential buildings.
Electromagnetic environment - guidelines
Floors should be made of wood or concrete or
have ceramic tiles. When the floor is covered
with synthetic material, the relative humidity must
be at least 30%.
The quality of the supply voltage should
correspond to that of a typical business or
hospital environment.
The quality of the supply voltage should
correspond to that of a typical business or
hospital environment.
for 0.5 periods
The quality of the supply voltage should
T
for 5 periods
correspond to that of a typical business or
T
for 25 periods
hospital environment. When the user of the
T
for 250 periods
medical device needs continued operation even
T
when the power supply is interrupted, it is
recommended to supply the medical device from
an uninterrupted power supply or a battery.
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial hospital.
Portable and mobile radio devices should not be used closer to
eff
the medical device (including the electrical lines) than the
recommenced safe distance calculated using the equation for
the transmission frequency. Recommended safe distance:
d = 0.50 √P
d = 0.35 √P for 80 MHz to 800 MHz
d = 0.70 √P for 800 MHz to 2.5 GHz
with P as the maximum rated power of the transmitter in Watts
(W) according to the transmitter manufacturer, and d as the
recommended safe distance in meters (m).
b
The field strength of stationary radio transmitters should be less
than the conformance level at all frequencies in an on-site
c
d
check
.
Disturbances are possible close to devices that have
the following symbol.
®
ENDOAce
Torque