ResMed AirCurve 10 ST-A Guia Del Usuario página 27

Immunity test IEC60601-1-2 test
level
Surge ±1 kV differential
IEC 61000-4-5 mode
±2 kV common mode
Voltage dips, <5% Ut (>95% dip in
short Ut) for 0.5 cycle
interruptions
40% Ut (60% dip in
and voltage
Ut) for 5 cycles
variations on
70% Ut (30% dip in
power supply
Ut) for 25 cycles
input lines
<5% Ut (>95% dip in
IEC 61000-4-11
Ut) for 5 sec
Power 3 A/m
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
Conducted RF 3 Vrms
IEC 61000-4-6 150 kHz to 80 MHz
Radiated RF 3 V/m
IEC 61000-4-3 80 MHz to 2.5 GHz
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 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 reorienting or relocating the device.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Notes:
• Ut is the AC mains voltage prior to application of the test level.
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.
Compliance Electromagnetic environment — guidance
level
±1 kV Mains power quality should be that of a typical commercial or
differential hospital environment.
mode
±2 kV common
mode
100V Mains power quality should be that of a typical commercial or
hospital environment.
240V If the user of the device requires continued operation during
power mains interruptions, it is recommended that the device
be powered from an uninterruptible power source.
30 A/m Power frequency magnetic fields should be at levels
characteristic of a typical location in a typical commercial or
hospital environment.
3 Vrms Portable and mobile RF communications equipment should be
150 kHz to used no closer to any part of the device, including cables, than
80 MHz the recommended separation distance calculated from the
equation applicable to the frequency of the transmitter.
10 V/m Recommended separation distance
80 MHz to
d = 0.35 √P
2.5 GHz
d = 0.35 √P 80 MHz to 800 MHz
d = 0.70 √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
determined by an electromagnetic site survey,
than the compliance level in each frequency range.
Interference may occur in the vicinity of equipment marked
with the following symbol:
a
should be less
b
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