Fukuda Denshi DSL-8001, Service Manual

Page: 27 / 150

Compliance to the Electromagnetic Immunity (2)
The DSL-8001 system is intended for use in the electromagnetic environment specified below. It
should be assured that the DSL-8001 system be 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 DSL-8001, 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 to 800MHz
d = 2.3
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 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 where the DSL-8001 is used exceeds the RF
compliance level above, observe to verify whether the DSL-8001 system operates
normally in this environment. 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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