ResMed VPAP III ST-A User Manual page 52

Guidance and manufacturer's declaration – electromagnetic immunity
The VPAP III ST-A is intended for use in the electromagnetic environment specified below. The
customer or the user of the VPAP III ST-A should assure that it is used in such an environment.
Immunity test
Electrostatic
discharge (ESD)
IEC 61000-4-2
Electrical fast
transient/burst
IEC 61000-4-4
Surge
IEC 61000-4-5
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
NOTE: Ut is the AC mains voltage prior to application of the test level.
(Continued next page)
46
IEC60601-1-2 Compliance
test level level
±6 kV contact ±6 kV contact
±8 kV air ±8 kV air
±2 kV for power ±2 kV
supply lines
±1 kV for input/ Not Applicable
output lines
±1 kV differential ±1 kV differential
mode mode
±2 kV common ±2 kV common
mode mode
<5% Ut < 12 V
(>95% dip in Ut) (>95% dip in 240V)
for 0.5 cycle for 0.5 cycle
40% Ut 96 V
(60% dip in Ut) (60% dip in 240 V)
for 5 cycles for 5 cycles
70% Ut 168 V
(30% dip in Ut) (30% dip in 240 V)
for 25 cycles for 25 cycles
<5% Ut <12 V
(>95% dip in Ut) (>95% dip in 240 V)
for 5 sec for 5 sec
3 A/m 3 A/m
Electromagnetic
environment –
guidance
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment.
If the user of the
VPAP III ST-A requires
continued operation during
power mains interruptions,
it is recommended that the
VPAP III ST-A be powered
from an uninterruptible
power source
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment