62
Table 2
：
Electromagnetic disturbance guidance and manufacturer statement
This system can be used in a specified electromagnetic environment, users should ensure the use of
electromagnetic environment in the following provisions.
Immunity test
IEC 60601Test level
Accord level
Electromagnetic
environment - A Guide
electrostatic
discharge(ESD)
IEC 61000-4-2
±6 kV Contact
discharge
；
±8 kV Air discharge
±6 kV Contact discharge
；
±8 kV Air discharge
The ground must be made
of wood, concrete or tile. If
the floor is covered with
synthetic
material,
the
relative humidity is at least
30%
Electric fast
pulse
group(EFT)
IEC 61000-4-4
±2 kV Power cord
，
±1 kV I/OCable
(length greater than 3
M
）
±2 kV Power cord
，
±1 kV I/OCable (length
greater than 3 M
）
The power quality of the
network must be 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
The power quality of the
network must be a typical
commercial
or
hospital
environment
Voltage dips,
short
interruptions
and voltage
variations
IEC 61000-4-11
<5% U
T
(drop >95%
U
T
) 0.5cycle
40% U
T
(drop 60%
U
T
) 5 cycle
70% U
T
(drop30% U
T
)
25cycle
<5% U
T
(drop >95%
U
T
) 5s
<5% U
T
(drop >95% U
T
)
0.5cycle
40% U
T
(drop 60% U
T
) 5
cycle
70% U
T
(drop30% U
T
)
25cycle
<5% U
T
(drop >95% U
T
)
5s
The quality of the power
supply network must be a
typical
commercial
or
hospital environment. If the
system
needs
to
be
maintained
during
continuous operation in the
power network interruption,
we recommend the use of
an uninterruptible power
supply UPS power supply.
Power
frequency
magnetic
field(50/60Hz)
IEC 61000-4-8
3 A/m
3 A/m
The
power
frequency
magnetic
field
must
conform
to
the
characteristics of a typical
commercial
or
hospital
environment
Be careful
：
U
T
is the AC voltage value before the test voltage is applied