ECGMAC EM-301 - Electromagnetic Immunity

61
environment.
Power frequency
（50HZ）
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 0.5
cycle
40%U 60% dip in 5
cycles
70%U 30% dip for 25
cycles）
﹤5%UT >95% dip in 5
seconds
﹤5%UT >95% dip in
0.5 cycle
40%UT 60% dip in 5
cycles
70%UT 30% dip for
25 cycles）
﹤5%UT >95% dip in
5 seconds）
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of
EM-301 electrocardiograph
requires continued
operation during power mains
interruptions, it is
recommended that
EM-301 electrocardiograph be
powered from an
uninterruptible power supply
or battery.
Note：U AC voltage before test voltage is applied
EMC guidance and manufacturer’s declarations –Electromagnetic immunity – For non-life-support
equipment
EMC guidance and manufacturer’s declarations –Electromagnetic immunity
EM-301、EM-601 electrocardiograph is intended for use in the electromagnetic environment specified
below.
Immunity test
IEC 60601
test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
IEC61000-4-6
Radiated RF
IEC61000-4-3
3Vrms
150KHz-80MHz
3V/m
80MHz-2.5GHz
3Vrms
1V/m
Portable and mobile RF communications
equipment should be used no closer to any
part of EM-301 electrocardiograph, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
p
1
5.3
⎥
⎦
⎤
⎢
⎣
⎡
=
v
d