Fukuda Denshi DynaScope 7000 Series, Service Manual

Page: 33 / 143

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Compliance to the Electromagnetic Immunity (2)
The DS-7000 is tested under the following electromagnetic environment.
Immunity Test
IEC60601-1-2
Test Level
Compliance
Level
Electromagnetic Environment - Guidance
(
The DS-7000 is intended for use in the
electromagnetic environment specified below.)
Portable and mobile RF communications
equipment should be used no closer to any part of
the DS-7000, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency of
the transmitter.
Recommended Separation Distance
Conducted RF
IEC61000-4-6 3Vrms
150kHz to 80MHz
3Vrms
d = 1.2
P
Radiated RF
IEC61000-4-3 3V/m
80MHz to 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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