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
sec
<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
sec
Mains power quality
should be that of a
typical commercial
or hospital
environment. If the
user of the models
JPD-100B requires
continued operation
during power mains
interruptions, it is
recommended that
the models
JPD-100B be
powered from an
uninterruptible
power supply or a
battery.
Power
frequency(50/
60
Hz)magnetic
field IEC
61000-4-8
3 A/m
Not
applicable
Not applicable
NOTE U
T
is the a.c. mains voltage prior to application of the test level.
The models JPD-100B is intended for use in the electromagnetic
environment specified below. The customer or the user of the Fetal Heart
Rate Doppler Detector should assure that it is used in such an
environment.
Immunity test
IEC 60601
test level
Compliance
level
Electromagnetic
environment –
guidance
Conducted RF
IEC 61000-4-6
3 Vrms 150
kHz to 80
3V
Portable and mobile
RF communications
equipment should
be used no closer to
any part of the
models JPD-100B
including cables,
than the
