Oxygen Equipment User Manual

24
DL-00096 Rev. 7
Immunity test
Voltagedips,short
interruptions, and
voltagevariations
on power supply
input lines
IEC61000-4-11
Powerfrequency
(50/60Hz)magnetic
field
IEC61000-4-8
ConductedRF
IEC61000-4-6
RadiatedRF
IEC61000-4-3
IEC 60601 test
level
<5%U
T
(>95%dipinU
T
)
for0.5cycle
40%U
T
(60%dipinU
T
)
for5cycles
70%U
T
(30%dipinU
T
)
for25cycles
<5%U
T
(>95%dipinU
T
)
for5sec
3A/m
3Vrms150kHz
to80Mhz
20V/m80Mhz
to2.5Ghz
Electromagnetic
environment/guidance
Mainspowerqualityshould
be that of a typical
commercial or hospital
environment.Iftheuser
ofthePortableOxygen
Concentratorrequired
continued operation during
power main interruptions,
it is recommended that the
concentrator be powered
from an uninterruptible
powersupplyorbattery.
Powerfrequencymagnetic
fieldsshouldbeatlevels
characteristic of a typical
commercial or hospital
environment.
PortableandmobileRF
communications equipment
should be used no closer
toanypartofthePortable
OxygenConcentrator,
including cables, than the
recommended separation
distance calculated from the
equation applicable to the
frequency of the
transmitter.
Recommended separation
distance:
d=1.2√P
d=1.2√P80MHzto800
MHz
d=2.3√P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fixed
RFtransmitters,asdeter-
mined 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:
Compliance
level
<5%U
T
(>95%dipinU
T
)
for0.5cycle
40%U
T
(60%dipinU
T
)
for5cycles
70%U
T
(30%dipinU
T
)
for25cycles
<5%U
T
(>95%dipinU
T
)
for5sec
3A/m
3Vrms
20V/m
Note: At 80 MHz and 800 MHz, the higher frequency range applies.
Note: 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theoretical-
ly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thePortableOxygen
ConcentratorisusedexceedstheapplicableRFcompliancelevelabove,
theconcentratorshouldbeobservedtoverifynormaloperation.Ifabnormal
performanceisobserved,additionalmeasuresmaybenecessary,suchas
reorientingorrelocatingtheconcentrator.
b
Overthefrequencyrange150kHzto80MHz,fieldstrengthsshouldbe
lessthan3V/m.
DL-00096 rev 7.indd 24 6/1/2009 4:48:35 PM