39
GUIDANCE AND MANUFACTURER’S DECLARATION
Immunity test
IEC 60601
Test level
Compliance
level
Electromagnetic environment
– guidance
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 BPM is used exceeds the applicable RF compliance
level above, the OMRON BPM should be observed to verify normal operation.
If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the OMRON BPM.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less
than 3 V/m.
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:
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