Safety
106 KOSMOS User Guide
Radiated RF
IEC 61000-4-3
3 V/m
80MHz 2.5
GHz
3 V/m
d=1.2 80MHz to 800MHz
d=2.3 800MHz to 2.5GHz
Where P is the maximum
output power rating of the
transmitter in watts (W)
according to the transmitter
manufacturer and d is the
recommended separations
distance in meters (m).
Field strengths from fixed RF
transmitters, as determined by
an electromagnetic site
survey
4
, should be less than
the compliance level in each
frequency range
5
.
Interference may occur in the
vicinity of equipment marked
with the following symbol.
1 UT is the AC mains voltage prior to application of the test level
2 At 80MHz and 800 MHz, the higher frequency range applies
3 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects and people.
4 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 system is used exceeds the applicable RF compliance level above, the system
should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as re-orientating or relocating the system.
5 Over the frequency range 150kHz to 80MHz, field strengths should be less than 3V/m.
6 Conducted RF energy may cause noise in the ECG waveform. If noise is detected on the ECG waveform,
disconnect the system from AC power.
When using the optional mobile stand, the System can be susceptible to
ESD and may require manual intervention. If ESD results in a System
error, unplug the probe and plug back in to restore operation.
Conducted RF energy may cause noise in the ECG waveform. If noise is
detected on the ECG waveform, disconnect KOSMOS from AC power.
TABLE 9-9 Guidance and manufacturer's declaration: electromagnetic immunity
P
P
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