84
Electromagnetic Compatibility
Like other electrical medical equipment, SDC3 requires special precautions to ensure electromagnetic compatibility with other
electrical medical devices� To ensure electromagnetic compatibility (EMC), SDC3 must be installed and operated according to the
EMC information provided in this manual�
The SDC3 has been designed and tested to comply with IEC 60601-1-2 requirements for EMC with other devices�
Caution: Portable and mobile RF communications equipment may affect the normal function of the SDC3�
Caution: Do not use cables or accessories other than those provided with the SDC3, as this may result in increased
electromagnetic emissions or decreased immunity to such emissions�
Caution: If the SDC3 is used adjacent to or stacked with other equipment, observe and verify normal operation of the SDC3 in the
configuration in which it will be used prior to using it in a surgical procedure� Consult the tables below for guidance in placing the
SDC3
Guidance and Manufacturer’s Declaration: Electromagnetic Immunity
SDC3 is intended for use in the electromagnetic environment specified below� The customer or the user of SDC3 should ensure
that it is used in such an environment�
(a) Field strengths from fixed 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 fixed RF transmitters, an electromagnetic site survey should be considered� If the
measured field strength in the location in which the SDC3 system is used exceeds the applicable RF compliance level above,
the SDC3 system should be observed to verify normal operation� If abnormal performance is observed, additional measures
may be necessary, such as reorienting or relocating the SDC3 unit�
(b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m�
Recommended Separation Distances Between Portable and Mobile RF Communications Equipment and the SDC3 System
The SDC3 system is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled� The
user of the SDC3 system can help prevent electromagnetic interference by maintaining a minimum distance between portable
and mobile RF communications equipment (transmitters) and the SDC3 system as recommended below, according to the
maximum output power of the communications equipment�
Rated maximum output power (W)
of transmitter
Separation distance (m) according to frequency of transmitter
150 kHz to 80 MHz
d = 1�17√P
80 kHz to 800 MHz
d = 1�17√P
800 kHz to 2�5 GHz
d = 1�17√P
0�01
0�12
0�12
0�23
0�1
0�37
0�37
0�74
1
1�17
1�17
2�33
10
3�70
3�70
7�37
100
11�70
11�70
23�30
For transmitters rated at a maximum output power not listed above, the recommended separation distance (d) in meters (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�
Summary of Contents for SDC3
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