27
APPENDIX: EMC INFORMATION
Medical Electrical Equipment needs special precautions regarding EMC and needs to be installed
and put into service according to the EMC information provided in the following.
Portable and mobile RF communication equipment (e.g. cell phones) can affect Medical Electrical
Equipment.
The use of accessories and cables other than those specified (other than A&D original parts) may
result in increased emissions or decreased immunity of the unit.
Guidance and manufacturer’s declaration – electromagnetic emissions
The A&D unit is intended for use in the electromagnetic environment specified below.
The customer or the user of the A&D unit should assure that it is used in such an environment.
Emissions test
Compliance
Electromagnetic environment – guidance
RF emissions
CISPR 11
Group 1
The A&D unit 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 A
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations/flicker
emissions IEC 61000-3-3
Complies
The A&D unit 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.
Recommended separation distances between portable and mobile RF communications
equipment and the A&D unit
The A&D unit is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the A&D unit can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the A&D unit as recommended below, according to
the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter
m
Rated maximum output
power of transmitter
W
150 kHz to 80 MHz
d
= 1.2
P
80 MHz to 800 MHz
d
= 1.2
P
800 MHz to 2.5 GHz
d
= 2.3
P
0.01 0.12
0.12
0.23
0.1 0.38
0.38
0.73
1 1.2
1.2
2.3
10 3.8
3.8
7.3
100 12
12
23
For transmitters rated at a maximum output power not listed above, the recommended
separation distance
d
in metres (m) can be estimated using the equation applicable to the
frequency of the transmitter, where
p
is the maximum output power rating of the transmitter in
watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range
applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
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