Directions for use 59
Electromagnetic immunity
The Welch Allyn Home Blood Pressure Monitor is intended for use in the electromagnetic
environment specified below. The customer or the user of the Welch Allyn Home Blood
Pressure Monitor 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
± 15kV air
±8 kV contact
± 15kV 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
Mains power quality should be that of
a typical commercial or hospital
environment.
Surge
IEC 61000-4-5
± 1 kV line(s) to
line(s)
± 2kV line(s) to
earth
± 1 kV
differential
mode
Mains power quality should be that of
a typical commercial or hospital
environment.
