53
Guidance and manufacturer’s declaration – electromagnetic immunity
The model EzSensor is intended for use in an electromagnetic environment as specified below. The
customer or the user of model EzSensor should ensure that it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic environment
–
guidance
Conducted RF
IEC61000-4-6
3 Vrms
150 kHz to
80MHz
3 Vrms
150 kHz to
80MHz
Portable and mobile RF communications
equipment should be used no closer to any
part of the model EzSensor, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Radiated RF
IEC61000-4-3
3 V/m
80 MHz to
2.5GHz
3 V/m
80 MHz to
2.5GHz
Recommended separation distance
d=[3.5/V1]√P
d=[3.5/E1]√P 80MHz to 800MHz
d=[7/E1]√P 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
separation
distance
in
meters(m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site
survey,
a
should be less than the compliance
level in each frequency range.
b
Interference may occur in the vicinity of
equipment marked with the following symbol:
Note 1 : At 80MHz and 800MHz, 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 model
EzSensor
is
used exceeds the applicable RF compliance level above, normal operation of the model
EzSensor
must be verified. If abnormal performance is observed, additional measures may
be necessary, such as re-orienting or relocating the model
EzSensor
.
b
Over the frequency range of 150kHz to 80MHz, field strengths should be less than [V1] V/m.
Summary of Contents for EzSensor
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