Product Manual
M3A Vital Signs Monitor User Manual EMC Information
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Electrical fast
transient/burst IEC
61000-4-4
±2kV for power
supply lines;
With TH module:
±1 kV for power
supply lines.
±2 kV for power
supply lines;
With TH module:
±1 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 differential
mode
±2 kV common mode
±1 kV differential
mode ±2 kV
common mode
Mains power quality should be
that of a typical commercial or
hospital environment.
Power frequency
(50/60Hz)
magnetic field
IEC61000-4-8
3A/m 3A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
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 sec
<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 sec
Mains power quality should be
that of a typical commercial or
hospital environment. If the
user of the M3A requires
continued operation during
power mains interruptions, it is
recommended that the M3A be
powered from an
uninterruptible power supply
or a battery.
NOTE UT is the a.c. mains voltage prior to application of the test level.










