Stryker SDC Classic Guia Del Usuario página 35

Guidance and Manufacturer's Declaration--Electromagnetic Immunity
The SDC Classic™ system is intended for use in the electromagnetic environment specified below.
The user of the SDC Classic system should ensure that it is used in such an environment.
Immunity Test
Conducted RF
IEC 61000-4-6 150 kHz to 80 MHz
Radiated RF
IEC 61000-4-3 80 MHz to 2.5 GHz
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 reflection from structures, objects, and people.
(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 SDC Classic system is used exceeds the applicable RF
compliance level above, the SDC Classic™ system should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be necessary, such as reorienting or
relocating the SDC Classic unit.
(b) Over the frequency range 150 kHz to 80 Mhz, field strengths should be less than 3 V/m.
IEC 60601 Test
Level
3 Vrms
3 V/m
Compliance
Level
Portable and mobile RF communications
equipment should be used no closer
to any part of the SDC Classic system,
including its cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of the
Recommended Separation Distance
3 V
3 V/m
d = 1.17√P 80 MHz to 800 MHz
d = 2.33√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 fixed RF transmitters,
as determined by an electromagnetic
site survey (a), should be less that the
compliance level in each frequency range
(b).
Interference may occur in the vicinity
of equipment marked with the following
symbol:
Electromagnetic Environment--
Guidance
transmitter.
d = 1.17√P
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