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Melissa 637-006 Manual

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Table 3: Guidance & Declaration - electromagnetic
immunity concerning Conducted RF & Radiated RF
Guidance&Declaration-Electromagneticimmunity
The models WL1 and WL3 are intended for use in the
electromagneticenvironmentspeciedbelow.Thecustomeror
the user should assure that it is used in such an environment.
Immunity
test
IEC
60601
test
level
Comp-
liance
level
Electromagnetic environment -
guidance
Portable and mobile RF
communicationsequipment
should be used no closer to
any part of the model WL1 and
WL3, including cables, than the
recommended separation distance
calculatedfromtheequation
applicabletothefrequencyofthe
transmitter.
Recommended separation
distance
Conducted
RFlEC
61000-4-6
3
Vrms
150
kHz
to 80
MHz
3V 3V
Radiated
RFlEC
61000-4-3
3 V/m
80
MHz
to2.5
GHz
3 V/m d=1.2×P
1/2
80MHzto800MHz
d=2.3×P
1/2
800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
distance in meters (m).
Fieldstrengthsfromxed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IAt80MHzend800MHz.thehigherfrequencyrange
applies.
NOTE 2 These guidelines may not apply in all situations.
Electromagnetic propagation is affected by absorption and
reectionfromstructures,objectsandpeople.
a
Fieldstrengthsfromxed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xedRFtransmitters,
an electromagnetic site survey should be considered. If the
measuredeldstrengthinthelocationinwhichthemodels
WL1 and WL3 are used exceeds the applicable RF compliance
level above, the models WL1 and WL3 should be observed to
verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as reorienting or
relocating the models WL1 and WL3.
b
Overthefrequencyrange150kHzto80MHz,eldstrengths
should be less than 3V/m.
Table 4: Recommended separation distances
between portable and mobile RF communications
equipment and the models WL1 and WL3
Recommended separation distances between
portableandmobileRFcommunicationsequipmentandthe
models WL1 and WL3
The models WL1 and WL3 are intended for use in
electromagnetic environment in which radiated RF disturbances
is controlled. The customer or the user of the models WL1
and WL3 can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile
RFcommunicationsequipment(transmitters)andthemodels
WL1 and WL3 as recommended below, according to the
maximumoutputpowerofthecommunicationsequipment.
Rated maximum
output power
of transmitter
W
Separationdistanceaccordingtofrequency
of transmitter
m
150kHzto
80MHz
d=1.2×P
1/2
80MHzto
800MHz
d=1.2×P
1/2
800MHzto
2,5GHz
d=2.3×P
1/2
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7.3
100 12 12 23
For transmitters rated at a maximum output power not listed
above, the recommended separation distance d in meters (m)
canbeestimatedusingtheequationapplicabletothefrequency
of the transmitter, where P is the maximum output power rating
of the transmitter in watts (W) accordable to the transmitter
manufacturer.
NOTEI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
reectionfromstructures,objectsandpeople.
… 30 …


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