Welch Allyn Scale-Tronix 4802D Mode D'emploi page 30

26 Appendices
Emissions test
Radiated emissions
CISPR 11
Conducted emissions
CISPR 11
Harmonic emissions
IEC 61000-3-2
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
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
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
Electromagnetic emissions
Compliance Electromagnetic environment - guidance
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.
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.
Class A
Complies
Electromagnetic immunity
IEC 60601 test level Compliance level
±8 kV contact ±8 kV contact
±15 kV air ±15 kV air
±2 kV for power supply ±2 kV for power supply
lines lines
±1 kV for input/output ±1 kV for input/output
lines lines
±1 kV differential mode ±1 kV differential mode Mains power quality should be that of a typical
<0 % U (>100 % dip in <0 % U
T T
U ) for 1 cycle @ 0° U ) for 1 cycle @ 0°
T T
70 % U (30 % dip in 70 % U
T T
U ) for 25/30 cycles @ U ) for 25/30 cycles @
T T
0° 0°
<0 % U (>100 % drop <0 % U
T T
in U ) for 0.5 cycles @ in U ) for 0.5 cycles @
T T
0°, 45°, 90°, 135°, 0°, 45°, 90°, 135°,
180°, 225°, 270°, & 180°, 225°, 270°, &
315° 315°
0% for 250/300 cycles 0% for 250/300 cycles
@ 0° @ 0°
30 A/m 30 A/m
Welch Allyn Pediatric/Infant Scale
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.
commercial or hospital environment.
Mains power quality should be that of a typical
(>100 % dip in
commercial or hospital environment. If the user
of the Welch Allyn Pediatric/Infant Scale
(30 % dip in
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
(>100 % drop
battery.
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.