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SD5/SD6 Ultrasonic TableTop Doppler User Manual
A2.3 Electromagnetic Immunity – for EQUIPMENT and SYSTEMS
that are not LIFE-SUPPORTING
Guidance and manufacture's declaration – electromagnetic immunity
The SD5/SD6 is intended for use in the electromagnetic environment specified below. The customer or
the user of SD5/SD6 should assure that it is used in such an environment.
Immunity
IEC 60601 test
test
level
Conducted
3 Vrms
RF
IEC
150 kHz to 80 MHz
61000-4-6
Radiated RF
3 V/m
IEC
80 MHz to 2.5 GHz
61000-4-3
NOTE 1 At 80 MHz and 800 MHz, 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
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 SD5/SD6 is used exceeds the applicable RF compliance level
above, the SD5/SD6 should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the SD5/SD6
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Compliance level
3Vrms
(0.1Vrms
1.995MHz~2.010MHz
2.985MHz~3.015MHz)
3 V/m
- 35 -
EMC Information
Electromagnetic environment
-guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the SD5/SD6 , including
cables,
than
the
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
P
d=1.2
P
d=35
1.995MHz to2.010MHz
P
d=35
2.985MHz to 3.015MHz
P
d=1.2
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
manufacturer and d is the recommended
separation distance in metres (m).
Field
strengths
transmitters,
as
determined
electromagnetic site survey,
less than the compliance level in each
b
frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
recommended
the
transmitter
from
fixed
RF
by
an
a
should be
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