Walgreens WGNBPA-745 User Manual - page 16
29
30
• RecommendedseparationdistancesbetweenportableandmobileRFcommunicationequipment
and the device.
The device is intended for use in an electromagnetic environment where radiated RF disturbances are
under control. User can help prevent electromagnetic interference by keeping the device at a minimum
distancefromportableandmobileRFcommunicationsequipment(transmitters).Belowtabledetailsthe
maximumoutputpoweroftransmitter:
Rated maximum
output power of
transmitter W
Separationdistanceaccordingtofrequencyoftransmitterm
150kHzto80MHz
d=1.2
80MHzto800MHz
d=1.2
800MHzto2.5GHz
d=2.3
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
Fortransmittersratedatamaximumoutputpowernotlistedabove,therecommendedseparation
distancedinmetres(m)canbeestimatedusingtheequationapplicabletothefrequencyofthe
transmitter,wherePisthemaximumoutputpowerratingofthetransmitterinwatts(W)accordingto
the transmitter manufacturer.
NOTE1At80MHzand800MHz,theseparationdistanceforthehigherfrequencyrangeapplies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorptionandreflectionfromstructures,objectsandpeople.
• Guidanceandmanufacturer’sdeclaration–electromagneticimmunity
The device is intended for use in the electromagnetic environments listed below, and should only be
usedinsuchenvironments:
Immunity
test
IEC 60601
test level
Compliance
level
Electromagnetic environment – guidance
Conducted
RF
IEC61000-
4-6
Radiated
RF
IEC61000-
4-3
3Vrms
150kHzto
80MHz
3V/m
80MHzto
2.5GHz
3Vrms
3V/m
PortableandmobileRFcommunicationsequipmentshould
be used no closer to any part of the device, including cables,
than the recommended separation distance calculated from
theequationapplicabletothefrequencyofthetransmitter.
Recommended separation distance
d=1.2
d=1.280MHzto800MHz
d=2.3800MHzto2.5GHz
wherePisthemaximumoutputpowerratingofthetransmit-
ter in watts (W) according to the transmitter manufacturer
and d is the recommended separation distance in metres
(m).
FieldstrengthsfromfixedRFtransmitters,asdetermined
by an electromagnetic site survey, a should be less than the
compliancelevelineachfrequencyrange.b
Interferencemayoccurinthevicinityofequipmentmarked
withthefollowingsymbol:
NOTE1At80MHzand800MHz,thehigherfrequencyrangeapplies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorptionandreflectionfromstructures,objectsandpeople.
aFieldstrengthsfromfixedtransmitters,suchasbasestationsforradio(cellular/cordless)telephonesand
landmobileradios,amateurradio,AMandFMradiobroadcastandTVbroadcastcannotbepredicted
theoreticallywithaccuracy.ToassesstheelectromagneticenvironmentduetofixedRFtransmitters,an
electromagnetic site survey should be considered. If the measured field strength in the location in which
thedeviceisusedexceedstheapplicableRFcompliancelevelabove,thedeviceshouldbeobservedto
verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as reorienting or relocating the device.
bOverthefrequencyrange150kHzto80MHz,fieldstrengthsshouldbelessthan3V/m.
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