27
ELECTROMAGNETIC COMPATIBILITY (EMC)
• Guidance and manufacturer’s declaration – electromagnetic emissions
The device is intended for use in the electromagnetic environments listed below, and should only be used in such
environments:
Emissions test
Compliance
Electromagnetic environment – guidance
RF emissions CISPR 11
Group 1
RF energy is used only to maintain device’s operation.
Therefore, its RF emissions are so low that it’s not likely to
cause any interference in nearby electronic equipment.
RF emissions CISPR 11
Class B
Harmonic emissions IEC
61000-3-2
Not
Applicable
The device 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.
Voltage fluctuations/ flicker
emissions IEC 61000-3-3
Not
Applicable
• Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below, and should only be used in such
environments:
Immunity test
IEC 60601 test level
Compliance level
Electromagnetic environment–
guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
± 6 kV contact
± 8 kV air
± 8 kV contact
± 15 kV air
The relative humidity should be at
least 5 %.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
30 A/m
Power frequency magnetic fields should
be at levels characteristic of a typical
location in a typical commercial or
hospital environment.
I
r = --------- (m)
188
Where I is the current in ameres in a
power bus or an appliance wire and r
is the recommended seperation
distance between your device and
the power bus or application wire, in
meters (m).
• Recommended separation distances between portable and mobile RF communication equipment and the
device.
The device is intended for use in an electromagnetic environment where radiated RF disturbances are under
control. User can help prevent electromagnetic interference by keeping the device at a minimum distance from
portable and mobile RF communications equipment (transmitters). Below table details the maximum output power
of transmitter:
Rated maximum output
power of transmitter W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
Not Applicable
80 MHz to 800 MHz
d = 1.2
800 MHz to 2.5 GHz
d = 2.3
0.01
NA
0.12
0.23
0.1
NA
0.38
0.73
1
NA
1.2
2.3
10
NA
3.8
7.3
