Philips DL879X, User Manual, Page: 74 / 92

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IMMUNITY test IEC 60601 test
level
Compliance
level
Electromagnetic
environment – guidance
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines IEC
61000-4-11
<5 % UT (>95 %
dip in UT)for 0,5
cycle 40 % UT
(60 % dip in UT)
for 5 cycles 70 %
UT (30 % dip in
UT)for 25 cycles
<5 % UT (>95 %
dip in UT) for 5 s
<5 % UT (>95 %
dip in UT) for 0,5
cycle 40 % UT
(60 % dip in UT)
for 5 cycles 70 %
UT (30 % dip in
UT)for 25 cycles
<5 % UT (>95 %
dip in UT) for 5s
Mains power quality
should be that of a typical
commercial or hospital
environment. If the user
of the device requires
continued operation during
power mains interruptions,
it is recommended that the
device be powered from
an uninterruptible power
supply or a battery.