213960EN(1) - P290 Mattress Instructions for Use Page 49
Voltage Dips
IEC 61000-4-11
0% U
T
: 0.5 cycle
At 0°, 45°, 90°, 135°,
180°, 225°, 270°, and
315°
0% U
T
: 1 cycle
70% U
T
: 25/30 cycles
Single phase: at 0°
(see note)
0% U
T
: 0.5 cycle
At 0°, 45°, 90°, 135°,
180°, 225°, 270°, and
315°
0% U
T
: 1 cycle
70% U
T
: 30 cycles
Single phase: at 0°
(see note)
Mains power quality should be that
of a typical commercial or hospital
environments. If the user of the
P290
Mattress
requires continued
operation during power mains
interruptions, it is recommended
that the P290
Mattress
be powered
from an uninterruptible power
supply or a battery.
Voltage
Interruptions
IEC 6100-4-11
0% U
T
for 250/300
cycles
0% U
T
for 300 cycles
Note : U
T
is the nominal value of the supply voltage applied during the test.
Conducted RF
IEC 61000-4-6
3 Vrms
0.15 MHz - 80 MHz
6 V in ISM bands
between 0.15 MHz
and 80 MHz
80% AM at 1 kHz rms
150 kHz to 80 MHz
3 V
0.15 MHz - 80 MHz
6 V in ISM bands
between 0.15 MHz
and 80 MHz
80% AM at 1 kHz rms
150 kHz to 80 MHz
Radiated RF
IEC 61000-4-3
10 V/m
80 MHz to
2.7 GHz
80% AM at 1 kHz
10 V/m
80 MHz to
2.7 GHz
80% AM at 1 kHz
The field levels emitted by fixed RF
transmitters, as determined by an
electromagnetic measurement of
the site
a
, must be below the level of
compliance in each frequency
band
b
.
Interference may occur close to
devices identified with the
following symbol:
a. The field levels of fixed transmitters, such as radio telephone bases (cell/wireless) and terrestrial
mobile radios, amateur radios and AM, FM and TV communication radios cannot be
theoretically evaluated precisely. Site measurements are required in order to obtain the
electromagnetic environment due to fixed RF transmitters. If the field level measured in the
working environment of the P290 mattress is greater than the above applicable levels of
compliance, the operation of the P290 mattress must be checked. If any anomalies are
detected, additional measures must be taken, such as redirecting or relocating the reference
equipment.
b. The field level must be less than 3V/m above the frequency band 150 kHz to 80 MHz.
Manufacturer's recommendations and declaration – electromagnetic immunity
The P290 Mattress is intended for use in the electromagnetic environment specified below. The
customer or the user of the P290 Mattress should make sure it is used in such an environment.
Immunity Test Test Level
IEC 60601
Compliance Electromagnetic Environment -
Recommendations