Atmos Variotherm plus - Page 24

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11.0 Notes on EMC
Immunity Test IEC 60601- Test Level Compliance Level Electromagnetic Environment -
Guidance
Voltage Dips / Dropout
IEC 61000-4-11
<5%U
T
(>95%DipoftheU
T
)
for 0.5 Cycle
40%U
T
(60%DipoftheU
T
)
For 5 cycles
70%U
T
(30%DipoftheU
T
)
For 25 cycles
<5%U
T
(>95%DipoftheU
T
)
for 5 s
<5%U
T
(>95%DipoftheU
T
)
for 0.5 Cycle
40%U
T
(60%DipoftheU
T
)
For 5 cycles
70%U
T
(30%DipoftheU
T
)
For 25 cycles
<5%U
T
(>95%DipoftheU
T
)
for 5 s
Mainspowerqualityshouldbethatofa
typical commercial or hospital environment.
IftheuseroftheATMOS
®
Variotherm plus
requires continued operation upon the
occurrence of disruptions in the energy
supply,theATMOS
®
Variotherm plus should
makeuseofanuninterruptiblepower
supply or a battery.
NOTE U
T
is the mains alternating current prior to application of the test levels.
11.3 Guidelines and Manufacturer´s Declaration - Immunity
TheATMOS
®
Variothermplusisdesignedforoperationintheelectromagneticenvironmentspeciedbelow.Thecustomeror
useroftheATMOSVariothermplusshouldensurethatitisusedinsuchanenvironment.
Immunity Test
IEC 60601- Test
Level
Compliance Level Electromagnetic Environment - Guidance
Conducted
disturbances
acc. to IEC 61000-
4-6
3 V
eff
150kHzto80MHz
3 V
Portable and mobile radio equipment should be used
noclosertotheATMOSVariothermplus,including
cables,thantherecommendeddistancecalculated
accordingtothatwhichappliestothetransmission
frequency.
Recommended distances:
d=(3.5/V1)*√(P)
d=(3.5/E1)*√(P)80-800MHz
d=(7/E1)*√(P)0.8-2.5GHz
where„P“isthemax.powerinwatts(W)anddisthe
recommendedseparationdistanceinmeters(m).
Fieldstrengthsfromxedtransmitters,asdetermined
byanelectromagneticsite(a)survey,shouldbeless
thanthecompliancelevel(b).
Interference may occur in the vicinity of equipment
containingfollowingsymbol:
Radiated
HFdisturbances
acc. to IEC 61000-
4-3
3 V/m
80MHzto2.5GHz
3 V/m