Precision Medical Live Active Five - Page 33

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Immunity Test IEC 60601
Test Level
Compliance
Level
Electromagnetic
Environment - Guidance
Surge
IEC 61000-4-5
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
Mains power quality should be that of a
typical commercial or hospital environment.
Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines
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
0.5 cycle
40% UT (60%
dip in UT) for
5 cycles
70% UT (30%
dip in UT) for
25 cycles
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the [ME EQUIPMENT or ME
SYSTEM] requires continued operation
during power mains interruptions, it is
recommended that the [ME EQUIPMENT
or ME SYSTEM] be powered from an
uninterrupted power supply or a battery.
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic fields should be
at levels characteristic of a typical location
in a typical hospital or home environment.
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures,
objects, and people.
UT is the a.c. main voltage prior to application of the test level.
a: Field strength 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 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 location in which
the device is used exceeds the applicable RF compliance level above, the device
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the device.
b: Over the frequency range 150 kHz to 80 MHz, the field strengths should be less than
3V/m.