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WMP-248/249 User’s manual
9
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
model WMP-248/249
requires continued
operation during
power
mains interruptions, it
is recommended that
the model
WMP-248/249 be
powered from an
uninterruptible power
supply or a battery.
Power
frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3 A/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 a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration – electromagnetic immunity
The model WMP-248/249 is intended for use in the electromagnetic environment specified below. The
customer or the user of the model WMP-248/249 should assure that it is used in such an environment.
Immunity
IEC
60601
test level
Compliance
level
Electromagnetic environment
–
guidance