Electromagnetic immunity
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC 61000-4-11
<5% U
T
(>95% dip in U
T
) for 0.5
cycle
40% U
T
(60% dip in U
T
) for 5
cycles
70% U
T
(30% dip in U
T
) for 25
cycles
<5% U
T
(>95% dip in U
T
) for 5
seconds
<5% U
T
(>95% dip in U
T
) for 0.5
cycle
40% U
T
(60% dip in U
T
) for 5
cycles
70% U
T
(30% dip in U
T
) for 25
cycles
<5% U
T
(>95% dip in U
T
) for 5
seconds
Mains power quality should be that of a typical
commercial or hospital environment. If the user
of the Welch Allyn Home Blood Pressure
Monitor requires continued operation during
power mains interruptions, it is recommended
that the Welch Allyn Home Blood Pressure
Monitor be powered from an uninterruptible
power supply or a battery.
Power frequency
(50Hz/60Hz) magnetic
field IEC 61000-4-8
3A/m & 30A/m
3A/m & 30A/m
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
Note: U
T
is the AC mains voltage prior to application of the test level.
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 AllynHome Blood Pressure Monitor should assure that it is used in such an
environment.
Immunity test
IEC 60601 test level Compliance level
Electromagnetic environment - guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the Welch Allyn Home Blood Pressure
Monitor, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms & 6Vms
150 kHz to 80 MHz
3 Vrms & 6Vms
d
= 1,2
Radiated RF
IEC 61000-4-3
3 V/m 80 MHz to 2.5
GHz
3 V/m
d
= 1,2
80 to 800 MHz
d
= 1,2
800 MHz to 2,5 GHz
10 V/m
d
= 2,3
800 MHz to 2,6 GHz
80 MHz to 2,6 GHz
10 V/m
where
P
is the maximum output power rating of
the transmitter in watts (W) and
d
is the
recommended separation distance in meters
(m).
26 Appendix
Welch Allyn Remote Monitoring Blood Pressure Device RPM-BP100SBP
