Fukuda Denshi IB-7300, Service Manual

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Compliance to the Electromagnetic Immunity (2)
The DS-7300 system is intended for use in the electromagnetic environment specified below.
It should be assured that the DS-7300 system is used in such an environment.
Immunity Test
IEC60601-1-2
Test Level
Compliance
Level
Electromagnetic Environment -
Guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of the DS-7300, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended Separation Distance
Conducted RF
IEC/EN61000-4-6
3Vrms
150kHz
～
80MHz
3Vrms
d = 1.2
P
Radiated RF
IEC/EN61000-4-3
3V/m
80MHz
～
2.5GHz
3V/m
d = 1.2
P
80MHz
∼
800MHz
d = 2.3
P
800MHz
∼
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, should be less than the
compliance level in each frequency range.
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 can not 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 this monitor
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or relocating this monitor.
b
Over the frequency range 150kHz to 80MHz, field strength should be less than 3V/m.
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