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21 Notes on EMC (Electromagnetic Compatibility)
Power frequency
(50/60 Hz) magnetic field
IEC 61000-4-8
U
is the AC mains voltage prior to application of the test level.
T
Guidance and manufacturer's declaration - electromagnetic immunity - for equipment and systems that are NOT life-supporting
MADSEN Zodiac is intended for use in the electromagnetic environment specified below. The user of MADSEN Zodiac should ensure that it is used in such an
environment.
Emissions test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Note 1
: At 80 MHz and 800 MHz the separation distance for 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 MADSEN Zodiac is used exceeds the applicable RF
compliance level above, the MADSEN Zodiac should be observed to verify normal operation. If abnormal performance is observed, additional measures
might be necessary, such as reorienting or relocating MADSEN Zodiac.
b. Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile RF communications equipment and MADSEN Zodiac
138
3 A/m
3 A/m
IEC 60601
Compliance level
test level
3 Vrms
3 Vrms
150 kHz to 80 MHz
150 kHz to 80 MHz
3 V/m
3 V/m
80 MHz to 2.5 GHz
80 MHz to 2.5 GHz
Power frequency magnetic fields should be at levels char-
acteristic of a typical location in a typical commercial or
hospital environment.
Electromagnetic environment - guidance
Portable and mobile RF communications equipment
should be used no closer to any part of MADSEN Zodiac,
including cables, than the recommended separation dis-
tance calculated from the equation applicable to the fre-
quency of the transmitter.
Recommended separation distance:
d = 1.2
d = 1.2
for 80 MHz to 800 MHz
d = 2.3
for 80 MHz to 2.5 GHz,
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 dis-
tance in metres (m).
Field strengths from fixed RF transmitters, as determ-
ined by an electromagnetic site survey,
than the compliance level in each frequency range.
Interference may occur in the vicinity of equipment
marked with this symbol:
Otometrics - MADSEN Zodiac
a
should be less
b
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