Bedfont NoxBox - Electromagnetic Immunity

10
2.4 Electromagnetic Immunity
The NOxBOX
i
complieswiththedirectiveEN60601-1-2electromagneticcompatibilitybut
can be affected by cellular phones and by electromagnetic interference exceeding the
levelsspeciedinEN55011:2007ClassB.
Guidance & Manufacturer’s Declaration: Electromagnetic Immunity (IEC 60601-1-2)
The NOxBOX
i
isintendedforuseintheelectromagneticenvironmentspeciedbelow.Thecustomerortheuserof
the NOxBOX
i
shouldassurethatitisusedinsuchanenvironment.
Immunity Test IEC 60601 Test Level Compliance Level Electromagnetic
Environment
Guidance
Electrostatic Discharge
(ESD)
IEC 61000-4-2
±6kVcontact
±6kVair
±6kVcontact
±6kVair
Floorshouldbewood,concreteor
ceramictile.Ifoorsarecoveredwith
syntheticmaterialtherelativehumidity
should be at least 30%
Electrical fast transient/
burst
IEC 61000-4-4
±2kVforpowersupply
lines
±1kVforinput/output
lines
±2kVforpower
supply lines
Mains power quality should be that of
atypicalhospitalenvironment.
Surge
IEC 61000-4-5
±1kVlinetoline
±2kVlinetoearth
±1kVlinetoline
±2kVlinetoearth
Mains power quality should be that of
atypicalhospitalenvironment.
Voltagedips,short
interruptions and
voltagevariationson
power supply.
IEC 61000-4-11
< 5 % UT
(>95%dipinUT)
for 0.5 cycle
40 % UT
(60%dipinUT)
for 5 cycles
70 % UT
(30%dipinUT)
for 25 cycles
< 5 % UT
(95%dipinUT)
for 5 seconds
Met or exceeded. Mains power quality should be that of
atypicalhospitalenvironment.
Power frequency
(50/60Hz)
Magneticeld
IEC 61000-4-8
3 A/m 3 A/m
Power frequency
magneticeldsshouldbeatlevels
characteristic of a typical location in a
hospitalenvironment
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3Vms
150 kHz – 80 MHz
outside ISM bands*
10Vms
150 kHz – 80 MHz in
ISM bands*
10Vms
80 kHz – 2.5 GHz
10Vms
150 kHz – 80 MHz
outside ISM bands*
10Vms
150 kHz – 80 MHz in
ISM bands*
10Vms
80 kHz – 2.5 GHz
Portable and mobile RF
communications equipment should
be used no closer to any part of the
NOxBOXi,includingcables,thanthe
recommended separation
distance calculated from the
equation appropriate to the
frequency of the transmitter.
Interference may occur in the
vicinityofequipmentmarkedwiththe
followingsymbol: