User's Manual

8Chapter1:ImportantInformation 989803173791 Rev 0.6
EMC Immunity
Electromagneticimmunityistheabilityofaproduct,adevice,orasystemtofunction
satisfactorilyinthepresenceofelectromagneticinterference.
GuidanceandManufacturer’sDeclaration‐ElectromagneticImmunity
ImmunityTest
IEC60601
TestLevel
Compliance
Level
ElectromagneticEnvironment‐Guidance
TheEssentialMRIPatientMonitor(Model865353)isintendedforuseintheelectromagneticenvironment

specifiedbelow.ThecustomerortheuseroftheEssentialMRIPatientMonitor(Model865353)shouldassure
thatitisusedinsuchanenvironment.
ConductedRF
IEC61000‐4‐6
RadiatedRF
IEC61000‐4‐3
3Vrms
150KHzto80MHz
3V/m
80MHzto2.5GHz
V1=3
Vrms
E1=3V/m
PortableandmobileRFcommunications
equipmentshouldnotbeusedclosertoanypart
ofthesystem(includingcabling)thanthe
recommendedseparationdistance,ascalculated
bytheequationapplicabletothefrequencyof
thetransmitter.Recommendedseparation
distance:
d=(3.5/V1)
d=(3.5/E1)
(80MHz
to800MHz)
d=(7/E1)
(800MHzto2.5GHz)
WherePisthemaximumtransmitteroutput
powerratinginwatts(W),accordingtoitsmanu‐
facturer,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this
symbol:
NOTES
•At80MHzand800MHz,thehigherfrequencyrangeapplies.
•Theseguidelinesmaynotapplyinallsituations,as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,andTVbroadcasts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systemlocationexceedstheapplicableRF
compliancelevelabove,thesystemshouldbeobservedtoverifynormaloperation.Ifabnormaloperationis
observed,additionalmeasuresmaybenecessary,suchasreorientingorrelocatingthesystem.
b
Overthefrequencyrange150KHzto80MHz,fieldstrengthsshouldbelessthan3V/m.
P
P
P