Welch Allyn 4802D, Инструкция по применению

Страница: 30 / 36

Electromagnetic emissions
Emissions test Compliance Electromagnetic environment - guidance
Radiated emissions
CISPR 11 Group 1 /Class B The Welch Allyn Pediatric/Infant Scale uses RF energy only for its
internal function. Therefore, its RF emissions are very low and are not
likely to cause any interference in nearby electronic equipment.
Conducted emissions
CISPR 11 Class B
The Welch Allyn Pediatric/Infant Scale is suitable for use in all
establishments other than domestic and those directly connected to the
public low-voltage power supply network that supplies buildings used
for domestic purposes.
Harmonic emissions
IEC 61000-3-2 Class A
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
Electromagnetic immunity
The Welch Allyn Pediatric/Infant Scale is intended for use in the electromagnetic environment specified below. The
customer or the user of the Welch Allyn Pediatric/Infant Scale 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
±8 kV contact
±15 kV air ±8 kV contact
±15 kV air Floors should be wood, concrete or ceramic
tile. If floors 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
±1 kV for input/output
lines
Mains power quality should be that of a typical
commercial or hospital environment.
Surge
IEC 61000-4-5
±1 kV differential mode ±1 kV differential mode 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
<0 % U
T
(>100 % dip in
U
T
) for 1 cycle @ 0°
70 % U
T
(30 % dip in
U
T
) for 25/30 cycles @
0°
<0 % U
T
(>100 % drop
in U
T
) for 0.5 cycles @
0°, 45°, 90°, 135°,
180°, 225°, 270°, &
315°
0% for 250/300 cycles
@ 0°
<0 % U
T
(>100 % dip in
U
T
) for 1 cycle @ 0°
70 % U
T
(30 % dip in
U
T
) for 25/30 cycles @
0°
<0 % U
T
(>100 % drop
in U
T
) for 0.5 cycles @
0°, 45°, 90°, 135°,
180°, 225°, 270°, &
315°
0% for 250/300 cycles
@ 0°
Mains power quality should be that of a typical
commercial or hospital environment. If the user
of the Welch Allyn Pediatric/Infant Scale
requires continued operation during power
mains interruptions, it is recommended that the
Welch Allyn Pediatric/Infant Scale be powered
from an uninterruptible power supply or a
battery.
Power frequency
(50/60 Hz) magnetic
field IEC 61000-4-8
30 A/m 30 A/m Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
26 Appendices Welch Allyn Pediatric/Infant Scale