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GUIDANCE AND MANUFACTURER’S DECLARATION
Guidance and manufacturer’s declaration - electromagnetic immunity
OMRON BP742N including AC-adapter is intended for use in the electromagnetic environment
specified below. The customer or the user of this OMRON BP742N including AC-adapter should assure
that it is used in such environment.
Immunity test
IEC 60601
test level
Compli-
ance
level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V rms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
3 V rms
3 V/m
Portable and mobile RF communications equipment should be
used no closer to any part of the OMRON BP742N including
AC-adapter including cables, than the recommended
separation distance calculated from the equation appropriate to
the frequency of the transmitter.
Recommend separation distance
d = 1.2 P
d = 1.2 P
80 MHz to 800 MHz
d = 2.3 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 than the
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment marked
with the following symbol:
Note1: At 80 MHz and 800 MHz, the higher frequency range applies.
Note2: 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 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 OMRON BP742N including AC-adapter is used exceeds the applicable RF compliance
level above, the OMRON BP742N including AC-adapter should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the OMRON BP742N including AC-adapter.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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